{"transactions":[{"id":692399,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":25194,"kind":"person","name":"KESTER W CARL","position":1,"cik":"0001141904","reported_name":"KESTER W CARL","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Transferable Subscription Rights (Right to Buy)","published_at":"2026-08-10T20:58:20.000Z","date":"2026-08-07","kind":"sale","planned":false,"acquired":false,"shares":188,"price":0.0061,"value":1.1468,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"On July 17, 2026, BlackRock MuniAssets Fund, Inc. (the \"Fund\") announced the terms of a pro rata offering of transferable subscription rights (the \"Rights\") to holders of the Fund's common shares as of the record date of July 28, 2026 (\"Record Date Shareholders\"), entitling the holders of such Rights to subscribe for up to an aggregate of 16,784,940 of the Fund's common shares (the \"Rights Offering\"). Record Date Shareholders received one Right for each outstanding whole common share held on the record date. The Rights entitle their holders to purchase one new common share for every three Rights held; however, any Record Date Shareholder who owns fewer than three common shares as of the close of business on the Record Date will be entitled to subscribe for one common share. The estimated subscription price per common share is $10.04."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On July 17, 2026, BlackRock MuniAssets Fund, Inc. (the \"Fund\") announced the terms of a pro rata offering of transferable subscription rights (the \"Rights\") to holders of the Fund's common shares as of the record date of July 28, 2026 (\"Record Date Shareholders\"), entitling the holders of such Rights to subscribe for up to an aggregate of 16,784,940 of the Fund's common shares (the \"Rights Offering\"). Record Date Shareholders received one Right for each outstanding whole common share held on the record date. The Rights entitle their holders to purchase one new common share for every three Rights held; however, any Record Date Shareholder who owns fewer than three common shares as of the close of business on the Record Date will be entitled to subscribe for one common share. The estimated subscription price per common share is $10.04."}],"balance_after":0,"derivative":{"exercise_date":"2026-07-28","expiration_date":"2026-08-20","underlying":"Common Stock","underlying_shares":62},"source":{"system":"sec-edgar","filing":"0001193125-26-342616","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526342616/ownership.xml","form_type":"4"}},{"id":882721,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":28551,"kind":"person","name":"HUBBARD ROBERT GLENN","position":1,"cik":"0001283051","reported_name":"HUBBARD ROBERT GLENN","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T01:36:13.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":260.6859,"price":11.361,"value":2961.6525099,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective as of February 23, 2026 BlackRock Long-Term Municipal Advantage Trust (the \"Target Fund\") was reorganized into BlackRock MuniAssets Fund, Inc. (the \"Acquiring Fund\"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $10.0395 and the Acquiring Fund reported a NAV per share of $11.3610. The conversion ratio for the Target Fund's common shares was 0.88368101. In the reorganization, Glenn Hubbard received 260.6859 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 295.00 common shares of the Target Fund."}],"balance_after":260.6859,"source":{"system":"sec-edgar","filing":"0001193125-26-072682","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526072682/ownership.xml","form_type":"4"}},{"id":882720,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T01:34:10.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":1060,"price":11.361,"value":12042.66,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective as of February 23, 2026 BlackRock Long-Term Municipal Advantage Trust (the \"Target Fund\") was reorganized into BlackRock MuniAssets Fund, Inc. (the \"Acquiring Fund\"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $10.0395 and the Acquiring Fund reported a NAV per share of $11.3610. The conversion ratio for the Target Fund's common shares was 0.88368101. In the reorganization, Christian Romaglino received 1060 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 1200 common shares of the Target Fund."}],"balance_after":1068.1002,"source":{"system":"sec-edgar","filing":"0001193125-26-072680","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526072680/ownership.xml","form_type":"4"}},{"id":882719,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":25194,"kind":"person","name":"KESTER W CARL","position":1,"cik":"0001141904","reported_name":"KESTER W CARL","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T01:32:24.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":88,"price":11.361,"value":999.768,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective as of February 23, 2026 BlackRock Long-Term Municipal Advantage Trust (the \"Target Fund\") was reorganized into BlackRock MuniAssets Fund, Inc. (the \"Acquiring Fund\"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $10.0395 and the Acquiring Fund reported a NAV per share of $11.3610. The conversion ratio for the Target Fund's common shares was 0.88368101. In the reorganization, Carl Kester received 88 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 100 common shares of the Target Fund."}],"balance_after":188,"source":{"system":"sec-edgar","filing":"0001193125-26-072676","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526072676/ownership.xml","form_type":"4"}},{"id":882718,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":14443,"kind":"person","name":"Harris Stayce D.","position":1,"cik":"0001860749","reported_name":"Harris Stayce D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T01:21:29.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":9,"price":11.361,"value":102.249,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective as of February 23, 2026 BlackRock Long-Term Municipal Advantage Trust (the \"Target Fund\") was reorganized into BlackRock MuniAssets Fund, Inc. (the \"Acquiring Fund\"). In the reorganization, common shareholders of the Target Fund received common shares of the Acquiring Fund having a value equal to the aggregate NAV of the Target Fund common shares surrendered as determined at the close of business on February 20, 2026, less the costs of the reorganization. As of February 20, 2026, the Target Fund reported a NAV per share of $10.0395 and the Acquiring Fund reported a NAV per share of $11.3610. The conversion ratio for the Target Fund's common shares was 0.88368101. In the reorganization, Stayce D. Harris received 9 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for her 10.8113 common shares of the Target Fund."}],"balance_after":19.7973,"source":{"system":"sec-edgar","filing":"0001193125-26-072646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526072646/ownership.xml","form_type":"4"}},{"id":922963,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2026-02-04T00:51:58.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":325.8578,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":325.8578},"source":{"system":"sec-edgar","filing":"0001193125-26-036280","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526036280/ownership.xml","form_type":"4"}},{"id":922962,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2026-02-04T00:51:58.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":336.0247,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":336.0247,"derivative":{"underlying":"Common Stock","underlying_shares":336.0247},"source":{"system":"sec-edgar","filing":"0001193125-26-036280","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526036280/ownership.xml","form_type":"4"}},{"id":922961,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2026-02-04T00:51:58.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":389.1757,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":778.3513,"derivative":{"underlying":"Common Stock","underlying_shares":389.1757},"source":{"system":"sec-edgar","filing":"0001193125-26-036280","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526036280/ownership.xml","form_type":"4"}},{"id":922960,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common Stock","published_at":"2026-02-04T00:51:58.000Z","date":"2026-01-30","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":1051.0581,"price":11.07,"value":11635.213167,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001193125-26-036280","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526036280/ownership.xml","form_type":"4"}},{"id":922959,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common Stock","published_at":"2026-02-04T00:51:58.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":true,"shares":1051.0581,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":1051.0581,"source":{"system":"sec-edgar","filing":"0001193125-26-036280","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526036280/ownership.xml","form_type":"4"}},{"id":922969,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":26618,"kind":"person","name":"Soccio Phillip","position":1,"cik":"0001436252","reported_name":"Soccio Phillip","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2026-02-03T21:59:21.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":88.6097,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":88.6097},"source":{"system":"sec-edgar","filing":"0001193125-26-035811","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526035811/ownership.xml","form_type":"4"}},{"id":922968,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":26618,"kind":"person","name":"Soccio Phillip","position":1,"cik":"0001436252","reported_name":"Soccio Phillip","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2026-02-03T21:59:21.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":279.1196,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":279.1196,"derivative":{"underlying":"Common Stock","underlying_shares":279.1196},"source":{"system":"sec-edgar","filing":"0001193125-26-035811","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526035811/ownership.xml","form_type":"4"}},{"id":922967,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":26618,"kind":"person","name":"Soccio Phillip","position":1,"cik":"0001436252","reported_name":"Soccio Phillip","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom 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cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom 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award."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."}],"balance_after":180.6685,"derivative":{"underlying":"Common 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each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":711.4381,"source":{"system":"sec-edgar","filing":"0001193125-26-035811","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526035811/ownership.xml","form_type":"4"}},{"id":922958,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64796,"kind":"person","name":"Maloney Kevin","position":1,"cik":"0001708024","reported_name":"Maloney 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date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common 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anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting Person was granted phantom shares on January 31, 2024 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2024, the Reporting 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cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As previously reported on a Form 4 dated February 4, 2025, the Reporting Person was granted phantom shares on January 31, 2025 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom 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2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001193125-26-035793","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526035793/ownership.xml","form_type":"4"}},{"id":922953,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64796,"kind":"person","name":"Maloney Kevin","position":1,"cik":"0001708024","reported_name":"Maloney Kevin","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common 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each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":384.8665,"source":{"system":"sec-edgar","filing":"0001193125-26-035793","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000119312526035793/ownership.xml","form_type":"4"}},{"id":1286036,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":26618,"kind":"person","name":"Soccio Phillip","position":1,"cik":"0001436252","reported_name":"Soccio 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date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":41.1574,"derivative":{"underlying":"Common 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Stock","published_at":"2025-02-04T21:21:09.000Z","date":"2025-01-31","kind":"exercise","planned":false,"acquired":true,"shares":36.3154,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":36.3154,"source":{"system":"sec-edgar","filing":"0000950170-25-013482","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017025013482/ownership.xml","form_type":"4"}},{"id":32008,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.92,"value":1192.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":196,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":30,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32007,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":200,"price":11.92,"value":2384.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":296,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":29,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32006,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.9,"value":1190.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":496,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":28,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32005,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":300,"price":11.9,"value":3570.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":596,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":27,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32004,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":55,"price":11.91,"value":655.05,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":896,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":26,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32003,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.9,"value":1190.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":951,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":25,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32002,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":345,"price":11.9,"value":4105.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":1051,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":24,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32001,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":60,"price":11.91,"value":714.6,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":1396,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":23,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":32000,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":261,"price":11.91,"value":3108.51,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":1456,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31999,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.91,"value":1191.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":1717,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31998,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.91,"value":1191.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":1817,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31997,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":121,"price":11.91,"value":1441.11,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":1917,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31996,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":321,"price":11.91,"value":3823.11,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2038,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31995,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.91,"value":1191.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2359,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31994,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.93,"value":1193.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2459,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31993,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.93,"value":1193.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2559,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31992,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.93,"value":1193.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2659,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31991,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2759,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31990,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2859,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31989,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":2959,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31988,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3059,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31987,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3159,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31986,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3259,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31985,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3359,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31984,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3459,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31983,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.93,"value":1193.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3559,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31982,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-27","kind":"sale","planned":false,"acquired":false,"shares":100,"price":11.945,"value":1194.5,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3659,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31981,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-06-24","kind":"purchase","planned":false,"acquired":true,"shares":3759,"price":12.0331,"value":45232.4229,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":3759,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31980,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-04-29","kind":"purchase","planned":false,"acquired":true,"shares":495,"price":11.82,"value":5850.9,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":31979,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10539,"kind":"organization","name":"BOFA SECURITIES, INC.","position":2,"cik":"0001675365","reported_name":"BOFA SECURITIES, INC.","relationship":{"ten_percent_owner":true}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":3,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"ten_percent_owner":true}}],"security":"Common Stock","published_at":"2024-12-13T21:24:04.000Z","date":"2022-04-27","kind":"sale","planned":false,"acquired":false,"shares":495,"price":11.7746,"value":5828.427,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"security","element":"securityTitle","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"security","element":"securityTitle","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"This statement is jointly filed by Bank of America Corporation, Merrill Lynch, Pierce, Fenner & Smith Incorporated (\"Merrill Lynch\"), and BofA Securities, Inc. (\"BofA Securities\") (together, the \"Reporting Persons\"). Bank of America Corporation holds an indirect interest in the securities listed in this Report by virtue of its 100% ownership of its subsidiaries Merrill Lynch and BofA Securities. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Securities Exchange Act  of 1934 (the \"Exchange Act\"), or for any other purpose."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Each Reporting Person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the Exchange Act or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group  with respect to the Issuer or any securities of the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Without conceding its status as a greater than 10% beneficial owner or that the reported transactions are subject to disclosure under Section 16(a) of the Exchange Act or short-swing profit recovery under Section 16(b) of the Exchange Act, the amount of profit potentially recoverable by the Issuer from the reported transactions in the event that the Reporting Persons were greater than 10% beneficial owners and the transactions were subject to Section 16(b) has been or will be remitted to the Issuer."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001140361-24-049494","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124049494/form4.xml","form_type":"4"}},{"id":1379649,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":14443,"kind":"person","name":"Harris Stayce D.","position":1,"cik":"0001860749","reported_name":"Harris Stayce D.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-10-30T19:18:42.000Z","date":"2024-10-29","kind":"purchase","planned":false,"acquired":true,"shares":10,"price":11.4599,"value":114.599,"ownership":{"direct":true},"balance_after":10,"source":{"system":"sec-edgar","filing":"0000950170-24-118917","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024118917/ownership.xml","form_type":"4"}},{"id":41809,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"ten_percent_owner":true}},{"id":10373,"kind":"organization","name":"Banc of America Preferred Funding Corp","position":2,"cik":"0001565450","reported_name":"Banc of America Preferred Funding Corp","relationship":{"ten_percent_owner":true}}],"security":"Variable Rate Demand Preferred Shares","published_at":"2024-04-12T20:54:02.000Z","date":"2024-04-11","kind":"other","planned":false,"acquired":false,"shares":1750,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The 1,750 variable rate demand preferred shares reported as disposed of in Table I (the \"VRDP Shares\") represent shares that were beneficially owned by Banc of America Preferred Funding Corporation (\"PFC\"). The VRDP Shares were disposed of as a result of an automatic tender of the VRDP Shares for a price of $100,000 per share. PFC is a wholly owned subsidiary of Bank of America Corporation."},{"field":"kind","element":"transactionCoding","label":"F2","text":"This statement is jointly filed by Bank of America Corporation and PFC.  Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary PFC. Each reporting person is currently analyzing additional trading activity and expect to file another Form 4 as promptly as reasonably practicable once that analysis is complete."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The 1,750 variable rate demand preferred shares reported as disposed of in Table I (the \"VRDP Shares\") represent shares that were beneficially owned by Banc of America Preferred Funding Corporation (\"PFC\"). The VRDP Shares were disposed of as a result of an automatic tender of the VRDP Shares for a price of $100,000 per share. PFC is a wholly owned subsidiary of Bank of America Corporation."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The 1,750 variable rate demand preferred shares reported as disposed of in Table I (the \"VRDP Shares\") represent shares that were beneficially owned by Banc of America Preferred Funding Corporation (\"PFC\"). The VRDP Shares were disposed of as a result of an automatic tender of the VRDP Shares for a price of $100,000 per share. PFC is a wholly owned subsidiary of Bank of America Corporation."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"This statement is jointly filed by Bank of America Corporation and PFC.  Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary PFC. Each reporting person is currently analyzing additional trading activity and expect to file another Form 4 as promptly as reasonably practicable once that analysis is complete."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Each reporting person declares that neither the filing of this statement nor anything herein shall be construed as an admission that such person is, for the purposes of Section 13(d) of the US Securities Exchange Act of 1934 or any other purpose, (i) acting (or has agreed or is agreeing to act together with any other person) as a partnership, limited partnership, syndicate or other group for the purpose of acquiring, holding or disposing of securities of the Issuer or otherwise with respect to the Issuer or any securities of the Issuer or (ii) a member of any group with respect to the Issuer or any securities of the Issuer."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001140361-24-019648","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/70858/000114036124019648/form4.xml","form_type":"4"}},{"id":1662781,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64796,"kind":"person","name":"Maloney Kevin","position":1,"cik":"0001708024","reported_name":"Maloney Kevin","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2024-02-02T23:14:05.000Z","date":"2024-01-31","kind":"exercise","planned":false,"acquired":false,"shares":34.2703,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":68.5406,"derivative":{"underlying":"Common Stock","underlying_shares":34.2703},"source":{"system":"sec-edgar","filing":"0000950170-24-010761","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024010761/ownership.xml","form_type":"4"}},{"id":1662780,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64796,"kind":"person","name":"Maloney Kevin","position":1,"cik":"0001708024","reported_name":"Maloney Kevin","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common Stock","published_at":"2024-02-02T23:14:05.000Z","date":"2024-01-31","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":34.2703,"price":10.91,"value":373.888973,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-24-010761","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024010761/ownership.xml","form_type":"4"}},{"id":1662779,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64796,"kind":"person","name":"Maloney Kevin","position":1,"cik":"0001708024","reported_name":"Maloney Kevin","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common Stock","published_at":"2024-02-02T23:14:05.000Z","date":"2024-01-31","kind":"exercise","planned":false,"acquired":true,"shares":34.2703,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":34.2703,"source":{"system":"sec-edgar","filing":"0000950170-24-010761","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024010761/ownership.xml","form_type":"4"}},{"id":1662778,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2024-02-02T23:00:45.000Z","date":"2024-01-31","kind":"exercise","planned":false,"acquired":false,"shares":142.8309,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2023, the Reporting Person was granted phantom shares on January 31, 2023 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":285.6618,"derivative":{"underlying":"Common Stock","underlying_shares":142.8309},"source":{"system":"sec-edgar","filing":"0000950170-24-010735","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024010735/ownership.xml","form_type":"4"}},{"id":1662777,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":64795,"kind":"person","name":"OCONNOR WALTER","position":1,"cik":"0001081506","reported_name":"OCONNOR WALTER","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2024-02-02T23:00:45.000Z","date":"2024-01-31","kind":"grant","planned":false,"acquired":true,"shares":446.8378,"price":10.91,"value":4875.000398,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."}],"balance_after":446.8378,"derivative":{"underlying":"Common Stock","underlying_shares":446.8378},"source":{"system":"sec-edgar","filing":"0000950170-24-010735","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024010735/ownership.xml","form_type":"4"}},{"id":1662776,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, 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in equal installments on each of the first three anniversaries of the award."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"A phantom share is the economic equivalent of one share of common stock and, subject to the applicable vesting requirements, becomes payable in cash."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."}],"balance_after":556.8286,"derivative":{"underlying":"Common Stock","underlying_shares":556.8286},"source":{"system":"sec-edgar","filing":"0000950170-24-010713","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/901243/000095017024010713/ownership.xml","form_type":"4"}},{"id":1662772,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, 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Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Non-rounded trade price is $10.830999."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000070858-23-000322","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000322/doc4.xml","form_type":"4"}},{"id":49132,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":2298,"price":10.57,"value":24289.86,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":5398,"source":{"system":"sec-edgar","filing":"0000070858-23-000321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":30,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000321/doc4.xml","form_type":"4"}},{"id":49131,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":500,"price":10.56,"value":5280.0,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":3100,"source":{"system":"sec-edgar","filing":"0000070858-23-000321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":29,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000321/doc4.xml","form_type":"4"}},{"id":49130,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":300,"price":10.56,"value":3168.0,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":2600,"source":{"system":"sec-edgar","filing":"0000070858-23-000321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":28,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000321/doc4.xml","form_type":"4"}},{"id":49129,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":300,"price":10.56,"value":3168.0,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":2300,"source":{"system":"sec-edgar","filing":"0000070858-23-000321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":27,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000321/doc4.xml","form_type":"4"}},{"id":49128,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":100,"price":10.56,"value":1056.0,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":2000,"source":{"system":"sec-edgar","filing":"0000070858-23-000321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":26,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000321/doc4.xml","form_type":"4"}},{"id":49127,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":100,"price":10.56,"value":1056.0,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. Without admitting error trades are subject to reporting or disgorgement under Section 16, the Reporting Persons will disgorge the profits from the reported transactions to the Issuer."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Bank of America Corporation held an indirect interest in the securities listed in Table I by virtue of its indirect ownership of its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated."}],"balance_after":1900,"source":{"system":"sec-edgar","filing":"0000070858-23-000321","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":25,"url":"https://www.sec.gov/Archives/edgar/data/70858/000007085823000321/doc4.xml","form_type":"4"}},{"id":49126,"issuer":{"id":5264,"kind":"organization","name":"BLACKROCK MUNIASSETS FUND, INC.","symbol":"MUA"},"owners":[{"id":2801,"kind":"organization","name":"BANK OF AMERICA CORP /DE/","symbol":"BAC","position":1,"cik":"0000070858","reported_name":"BANK OF AMERICA CORP /DE/","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"COMMON STOCK","published_at":"2023-12-29T19:44:37.000Z","date":"2023-12-27","kind":"purchase","planned":false,"acquired":true,"shares":100,"price":10.56,"value":1056.0,"ownership":{"direct":false,"nature":"By Subsidiary"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Reported transactions reflect the close out on an error trade. 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