{"transactions":[{"id":857319,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":37050,"kind":"organization","name":"Toronto Dominion Investments, Inc.","position":1,"cik":"0001344146","reported_name":"Toronto Dominion Investments, Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":37051,"kind":"organization","name":"TORONTO DOMINION HOLDINGS USA INC","position":2,"cik":"0000744464","reported_name":"TORONTO DOMINION HOLDINGS USA INC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":37052,"kind":"organization","name":"TD GROUP US HOLDINGS LLC","position":3,"cik":"0001710914","reported_name":"TD GROUP US HOLDINGS LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":2847,"kind":"organization","name":"TORONTO DOMINION BANK","position":4,"cik":"0000947263","reported_name":"TORONTO DOMINION BANK","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"VARIABLE RATE DEMAND PREFERRED SHARES","published_at":"2026-03-07T02:49:55.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":2313,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The 2,313 Variable Rate Demand Preferred Shares reported as acquired in Table I represent Variable Rate Demand Preferred Shares of the Issuer (the \"VRDP Shares\") beneficially owned by Toronto Dominion Investments LLC (\"TDI\") that were acquired from the Issuer in connection with the reorganization of BlackRock MuniVest Fund, Inc. (\"MVF\") and BlackRock MuniVest Fund II, Inc. (\"MVT\") into the Issuer. Immediately prior to such reorganization, TDI owned 1,536 Variable Rate Muni Term Preferred Shares of MVF and 777 Variable Rate Muni Term Preferred Shares of MVT, which were exchanged for an equal number of VRDP Shares of the Issuer in a cashless transaction. Prior to the reorganization, TDI held 3,564 VRDP Shares of the Issuer. TDI is a wholly owned subsidiary of The Toronto-Dominion Bank (\"TD Bank\")."},{"field":"kind","element":"transactionCoding","label":"F2","text":"This statement is jointly filed by TD Bank, TDI, Toronto Dominion Holdings (U.S.A.), Inc. (\"TDH\"), and TD Group US Holdings LLC (\"TD GUS\"). The VRDP Shares are owned directly by TDI. TDH is the soleowner of TDI and TD GUS is the sole owner of TDH. TD Bank is the sole owner of TD GUS. TD Bank, TDH, and TD GUS hold an indirect interest in the VRDP Shares by virtue of their ownership of TDI."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The 2,313 Variable Rate Demand Preferred Shares reported as acquired in Table I represent Variable Rate Demand Preferred Shares of the Issuer (the \"VRDP Shares\") beneficially owned by Toronto Dominion Investments LLC (\"TDI\") that were acquired from the Issuer in connection with the reorganization of BlackRock MuniVest Fund, Inc. (\"MVF\") and BlackRock MuniVest Fund II, Inc. (\"MVT\") into the Issuer. Immediately prior to such reorganization, TDI owned 1,536 Variable Rate Muni Term Preferred Shares of MVF and 777 Variable Rate Muni Term Preferred Shares of MVT, which were exchanged for an equal number of VRDP Shares of the Issuer in a cashless transaction. Prior to the reorganization, TDI held 3,564 VRDP Shares of the Issuer. TDI is a wholly owned subsidiary of The Toronto-Dominion Bank (\"TD Bank\")."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"The 2,313 Variable Rate Demand Preferred Shares reported as acquired in Table I represent Variable Rate Demand Preferred Shares of the Issuer (the \"VRDP Shares\") beneficially owned by Toronto Dominion Investments LLC (\"TDI\") that were acquired from the Issuer in connection with the reorganization of BlackRock MuniVest Fund, Inc. (\"MVF\") and BlackRock MuniVest Fund II, Inc. (\"MVT\") into the Issuer. Immediately prior to such reorganization, TDI owned 1,536 Variable Rate Muni Term Preferred Shares of MVF and 777 Variable Rate Muni Term Preferred Shares of MVT, which were exchanged for an equal number of VRDP Shares of the Issuer in a cashless transaction. Prior to the reorganization, TDI held 3,564 VRDP Shares of the Issuer. TDI is a wholly owned subsidiary of The Toronto-Dominion Bank (\"TD Bank\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"This statement is jointly filed by TD Bank, TDI, Toronto Dominion Holdings (U.S.A.), Inc. (\"TDH\"), and TD Group US Holdings LLC (\"TD GUS\"). The VRDP Shares are owned directly by TDI. TDH is the soleowner of TDI and TD GUS is the sole owner of TDH. TD Bank is the sole owner of TD GUS. TD Bank, TDH, and TD GUS hold an indirect interest in the VRDP Shares by virtue of their ownership of TDI."},{"field":"ownership.direct","element":"directOrIndirectOwnership","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 SecuritiesExchange 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 ofacquiring, 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 ofthe Issuer."}],"balance_after":5877,"source":{"system":"sec-edgar","filing":"0002052595-26-000041","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/744464/000205259526000041/ownership.xml","form_type":"4"}},{"id":882822,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2026-02-26T01:52:17.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":109.17,"price":11.24,"value":1227.0708,"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":"kind","element":"transactionCoding","label":"F2","text":"Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the \"Acquiring Fund\"). In connection with this reorganization, phantom stock units previously awarded to Phillip Soccio in the Target Fund were reallocated to the Acquiring Fund. The number of phantom stock units in the Acquiring Fund (109.17 units at $11.24 per share) represents the value of the reporting person's former Target Fund phantom stock units converted at the exchange ratio used in the reorganization. No additional consideration was paid by the reporting person in connection with this reallocation."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the \"Acquiring Fund\"). In connection with this reorganization, phantom stock units previously awarded to Phillip Soccio in the Target Fund were reallocated to the Acquiring Fund. The number of phantom stock units in the Acquiring Fund (109.17 units at $11.24 per share) represents the value of the reporting person's former Target Fund phantom stock units converted at the exchange ratio used in the reorganization. No additional consideration was paid by the reporting person in connection with this reallocation."},{"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":"Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the \"Acquiring Fund\"). In connection with this reorganization, phantom stock units previously awarded to Phillip Soccio in the Target Fund were reallocated to the Acquiring Fund. The number of phantom stock units in the Acquiring Fund (109.17 units at $11.24 per share) represents the value of the reporting person's former Target Fund phantom stock units converted at the exchange ratio used in the reorganization. No additional consideration was paid by the reporting person in connection with this reallocation."},{"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":"Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, Inc. (the \"Acquiring Fund\"). In connection with this reorganization, phantom stock units previously awarded to Phillip Soccio in the Target Fund were reallocated to the Acquiring Fund. The number of phantom stock units in the Acquiring Fund (109.17 units at $11.24 per share) represents the value of the reporting person's former Target Fund phantom stock units converted at the exchange ratio used in the reorganization. No additional consideration was paid by the reporting person in connection with this reallocation."}],"balance_after":109.17,"derivative":{"underlying":"Common Stock","underlying_shares":109.17},"source":{"system":"sec-edgar","filing":"0001193125-26-072731","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526072731/ownership.xml","form_type":"4"}},{"id":882821,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2026-02-26T01:28:44.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":10,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective as of February 23, 2026  BlackRock MuniVest Fund II, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, 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 $11.7926 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.98198836. In the reorganization, Stayce D. Harris received 10 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for her 10.7937 common shares of the Target Fund."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Effective as of February 23, 2026  BlackRock MuniVest Fund II, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, 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 $11.7926 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.98198836. In the reorganization, Stayce D. Harris received 10 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for her 10.7937 common shares of the Target Fund."}],"balance_after":20.7931,"source":{"system":"sec-edgar","filing":"0001193125-26-072663","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526072663/ownership.xml","form_type":"4"}},{"id":882820,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64793,"kind":"person","name":"KALINOSKI MICHAEL","position":1,"cik":"0001137436","reported_name":"KALINOSKI MICHAEL","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T00:37:05.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":3085,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Effective as of February 23, 2026  BlackRock MuniVest Fund II, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, 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 $11.7926 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.98198836. In the reorganization, Michael Kalinoski received 3085 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 3141.7166 common shares of the Target Fund."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Effective as of February 23, 2026  BlackRock MuniVest Fund II, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, 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 $11.7926 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.98198836. In the reorganization, Michael Kalinoski received 3085 common shares (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 3141.7166 common shares of the Target Fund."}],"balance_after":3114.5804,"source":{"system":"sec-edgar","filing":"0001193125-26-072547","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526072547/ownership.xml","form_type":"4"}},{"id":882819,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64793,"kind":"person","name":"KALINOSKI MICHAEL","position":1,"cik":"0001137436","reported_name":"KALINOSKI MICHAEL","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T00:37:05.000Z","date":"2026-02-23","kind":"other","planned":false,"acquired":true,"shares":1,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, 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 $7.5919 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.63218946. In the reorganization, Michael Kalinoski received 1 common share (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 2.2247 common shares of the Target Fund."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Effective as of February 23, 2026, BlackRock MuniVest Fund, Inc. (the \"Target Fund\") was reorganized into BlackRock MuniYield Quality Fund III, 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 $7.5919 and the Acquiring Fund reported a NAV per share of $12.0089. The conversion ratio for the Target Fund's common shares was 0.63218946. In the reorganization, Michael Kalinoski received 1 common share (and cash for fractional shares, if any) of the Acquiring Fund in exchange for his 2.2247 common shares of the Target Fund."}],"balance_after":29.5804,"source":{"system":"sec-edgar","filing":"0001193125-26-072547","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526072547/ownership.xml","form_type":"4"}},{"id":923134,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2026-02-04T01:11:38.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":160.4716,"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, 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":"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":0,"derivative":{"underlying":"Common Stock","underlying_shares":160.4716},"source":{"system":"sec-edgar","filing":"0001193125-26-036316","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526036316/ownership.xml","form_type":"4"}},{"id":923133,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2026-02-04T01:11:38.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":193.8703,"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":387.7407,"derivative":{"underlying":"Common Stock","underlying_shares":193.8703},"source":{"system":"sec-edgar","filing":"0001193125-26-036316","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526036316/ownership.xml","form_type":"4"}},{"id":923132,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2026-02-04T01:11:38.000Z","date":"2026-01-30","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":354.342,"price":11.16,"value":3954.45672,"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, 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":100,"source":{"system":"sec-edgar","filing":"0001193125-26-036316","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526036316/ownership.xml","form_type":"4"}},{"id":923131,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2026-02-04T01:11:38.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":true,"shares":354.342,"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, 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":454.342,"source":{"system":"sec-edgar","filing":"0001193125-26-036316","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526036316/ownership.xml","form_type":"4"}},{"id":923130,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64793,"kind":"person","name":"KALINOSKI MICHAEL","position":1,"cik":"0001137436","reported_name":"KALINOSKI MICHAEL","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2026-02-03T22:12:01.000Z","date":"2026-01-30","kind":"exercise","planned":false,"acquired":false,"shares":51.3372,"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, 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":"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 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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, 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":"0001193125-26-035844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/883412/000119312526035844/ownership.xml","form_type":"4"}},{"id":923121,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino 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cash."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"As previously reported on a Form 4 dated February 2, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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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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, 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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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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":"0000950170-25-013282","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/883412/000095017025013282/ownership.xml","form_type":"4"}},{"id":1286117,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino 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cash."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 2, 2021, the Reporting Person was granted phantom shares on January 29, 2021 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, 2021, the Reporting Person was granted phantom shares on January 29, 2021 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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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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":187.496,"derivative":{"underlying":"Common 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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, 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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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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, 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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":91.0453,"derivative":{"underlying":"Common Stock","underlying_shares":45.5226},"source":{"system":"sec-edgar","filing":"0000950170-24-010806","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/883412/000095017024010806/ownership.xml","form_type":"4"}},{"id":1662821,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64793,"kind":"person","name":"KALINOSKI MICHAEL","position":1,"cik":"0001137436","reported_name":"KALINOSKI MICHAEL","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."}],"balance_after":151.7508,"source":{"system":"sec-edgar","filing":"0000950170-24-010806","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000095017024010806/ownership.xml","form_type":"4"}},{"id":1662819,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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 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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 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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":"F2","text":"As previously reported on a Form 4 dated February 2, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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, 2022, the Reporting 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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, 2021, the Reporting Person was granted phantom shares on January 29, 2021 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, 2021, the Reporting Person was 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cash."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As previously reported on a Form 4 dated February 2, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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, 2022, the Reporting Person was granted phantom shares on January 31, 2022 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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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":"0000899243-23-003596","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924323003596/doc4.xml","form_type":"4"}},{"id":2037225,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common 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first three anniversaries of the grant date."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"As previously reported on a Form 4 dated February 4, 2020, the Reporting Person was granted phantom shares on January 31, 2020 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":502.1285,"source":{"system":"sec-edgar","filing":"0000899243-23-003596","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924323003596/doc4.xml","form_type":"4"}},{"id":2037224,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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":"2023-02-02T21:22:11.000Z","date":"2023-01-31","kind":"grant","acquired":true,"shares":407.0095,"price":11.52,"value":4688.74944,"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":"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":"F2","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":"F2","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."}],"balance_after":407.0095,"derivative":{"underlying":"Common Stock","underlying_shares":407.0095},"source":{"system":"sec-edgar","filing":"0000899243-23-003422","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924323003422/doc4.xml","form_type":"4"}},{"id":2222577,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":97720,"kind":"organization","name":"TD SECURITIES (USA) LLC","position":1,"cik":"0000803012","reported_name":"TD SECURITIES (USA) LLC","relationship":{"ten_percent_owner":true}},{"id":37051,"kind":"organization","name":"TORONTO DOMINION HOLDINGS USA INC","position":2,"cik":"0000744464","reported_name":"TORONTO DOMINION HOLDINGS USA INC","relationship":{"ten_percent_owner":true}},{"id":37052,"kind":"organization","name":"TD GROUP US HOLDINGS LLC","position":3,"cik":"0001710914","reported_name":"TD GROUP US HOLDINGS LLC","relationship":{"ten_percent_owner":true}},{"id":2847,"kind":"organization","name":"TORONTO DOMINION BANK","position":4,"cik":"0000947263","reported_name":"TORONTO DOMINION BANK","relationship":{"ten_percent_owner":true}}],"security":"MuniFund Preferred Shares","published_at":"2022-06-24T13:54:51.000Z","date":"2022-06-22","kind":"sale","acquired":false,"shares":1760,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The 1,760 MuniFund Preferred Shares (\"Shares\") reported as disposed of in Table I represent shares that were beneficially owned by TD Securities (USA) LLC (\"TDS\"). The Shares were disposed of as a result of a sale of such shares by TDS in an open market transaction for a sales price of $100,000 per share. The 1,760 shares reported as disposed of in Table I represent shares that were beneficially owned by TDS. TDS is a wholly owned subsidiary of The Toronto-Dominion Bank (\"TD Bank\")."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The 1,760 MuniFund Preferred Shares (\"Shares\") reported as disposed of in Table I represent shares that were beneficially owned by TD Securities (USA) LLC (\"TDS\"). The Shares were disposed of as a result of a sale of such shares by TDS in an open market transaction for a sales price of $100,000 per share. The 1,760 shares reported as disposed of in Table I represent shares that were beneficially owned by TDS. TDS is a wholly owned subsidiary of The Toronto-Dominion Bank (\"TD Bank\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"This statement is jointly filed by TD Bank, TDS, Toronto Dominion Holdings (U.S.A.), Inc. (\"TDH\"), and TD Group US Holdings LLC (\"TD GUS\"). The Shares were owned directly by TDS. TDH is the sole owner of TDS and TD GUS is the sole owner of TDH. TD Bank is the sole owner of TD GUS. TD Bank, TDH, and TD GUS hold an indirect interest in the Shares by virtue of their ownership of TDS."},{"field":"ownership.direct","element":"directOrIndirectOwnership","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":"0001654954-22-008718","document":"section16.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/744464/000165495422008718/section16.xml","form_type":"4"}},{"id":2417685,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2022-02-03T02:49:34.000Z","date":"2022-01-31","kind":"exercise","acquired":false,"shares":192.7307,"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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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":192.7307},"source":{"system":"sec-edgar","filing":"0000899243-22-004343","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004343/doc4.xml","form_type":"4"}},{"id":2417684,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","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":"F3","text":"As previously reported on a Form 4 dated February 4, 2020, the Reporting Person was granted phantom shares on January 31, 2020 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 4, 2020, the Reporting Person was granted phantom shares on January 31, 2020 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 4, 2020, the Reporting Person was granted phantom shares on January 31, 2020 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":161.534,"derivative":{"underlying":"Common Stock","underlying_shares":161.534},"source":{"system":"sec-edgar","filing":"0000899243-22-004343","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004343/doc4.xml","form_type":"4"}},{"id":2417683,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, 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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, 2021, the Reporting Person was granted phantom shares on January 29, 2021 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, 2021, the Reporting Person was granted phantom shares on January 29, 2021 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, 2021, the Reporting Person was granted phantom shares on January 29, 2021 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":292.3789,"derivative":{"underlying":"Common Stock","underlying_shares":146.1894},"source":{"system":"sec-edgar","filing":"0000899243-22-004343","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004343/doc4.xml","form_type":"4"}},{"id":2417682,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2022-02-03T02:49:34.000Z","date":"2022-01-31","kind":"grant","acquired":true,"shares":510.355,"price":13.52,"value":6899.9996,"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":"F5","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":"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":510.355,"derivative":{"underlying":"Common Stock","underlying_shares":510.355},"source":{"system":"sec-edgar","filing":"0000899243-22-004343","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004343/doc4.xml","form_type":"4"}},{"id":2417681,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Common 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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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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":"0000899243-22-004343","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004343/doc4.xml","form_type":"4"}},{"id":2417680,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino 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2020, the Reporting Person was granted phantom shares on January 31, 2020 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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 payable in cash on vesting, which occurs in equal installments on each of the first three anniversaries of the grant date."}],"balance_after":500.4542,"source":{"system":"sec-edgar","filing":"0000899243-22-004343","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004343/doc4.xml","form_type":"4"}},{"id":2417679,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, 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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":"F2","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":"F2","text":"These phantom shares vest in equal installments on each of the first three anniversaries of the award."}],"balance_after":211.3536,"derivative":{"underlying":"Common Stock","underlying_shares":211.3536},"source":{"system":"sec-edgar","filing":"0000899243-22-004274","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/883412/000089924322004274/doc4.xml","form_type":"4"}},{"id":2887070,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"owners":[{"id":64729,"kind":"person","name":"Romaglino Christian","position":1,"cik":"0001709479","reported_name":"Romaglino Christian","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Portfolio Manager"}}],"security":"Phantom Shares","published_at":"2021-02-03T01:36:30.000Z","date":"2021-01-29","kind":"exercise","acquired":false,"shares":184.7533,"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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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 4, 2019, the Reporting Person was granted phantom shares on January 31, 2019 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 4, 2019, the Reporting Person was 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MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000932440-11-000769","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/728612/000093244011000769/edgar.xml","form_type":"4"}},{"id":201435,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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}},{"id":10345,"kind":"organization","name":"BANK OF AMERICA NA","position":2,"cik":"0001102113","reported_name":"BANK OF AMERICA NA","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":11472,"kind":"organization","name":"Blue Ridge Investments, L.L.C.","position":3,"cik":"0001453700","reported_name":"Blue Ridge Investments, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":4,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Auction Rate Preferred","published_at":"2011-06-13T16:29:15.000Z","date":"2011-06-10","kind":"other","acquired":false,"shares":569,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."},{"field":"security","element":"securityTitle","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000932440-11-000753","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/728612/000093244011000753/edgar.xml","form_type":"4"}},{"id":201434,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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}},{"id":10345,"kind":"organization","name":"BANK OF AMERICA NA","position":2,"cik":"0001102113","reported_name":"BANK OF AMERICA NA","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":11472,"kind":"organization","name":"Blue Ridge Investments, L.L.C.","position":3,"cik":"0001453700","reported_name":"Blue Ridge Investments, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":4,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Auction Rate Preferred","published_at":"2011-06-13T16:29:15.000Z","date":"2011-06-09","kind":"other","acquired":false,"shares":845,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000932440-11-000753","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/728612/000093244011000753/edgar.xml","form_type":"4"}},{"id":201433,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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}},{"id":10345,"kind":"organization","name":"BANK OF AMERICA NA","position":2,"cik":"0001102113","reported_name":"BANK OF AMERICA NA","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":11472,"kind":"organization","name":"Blue Ridge Investments, L.L.C.","position":3,"cik":"0001453700","reported_name":"Blue Ridge Investments, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":4,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Auction Rate Preferred","published_at":"2011-06-13T16:29:15.000Z","date":"2011-06-09","kind":"other","acquired":false,"shares":611,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000932440-11-000753","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/728612/000093244011000753/edgar.xml","form_type":"4"}},{"id":201509,"issuer":{"id":8834,"kind":"organization","name":"BLACKROCK MUNIYIELD QUALITY FUND III, INC.","symbol":"MYI"},"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}},{"id":10345,"kind":"organization","name":"BANK OF AMERICA NA","position":2,"cik":"0001102113","reported_name":"BANK OF AMERICA NA","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":11472,"kind":"organization","name":"Blue Ridge Investments, L.L.C.","position":3,"cik":"0001453700","reported_name":"Blue Ridge Investments, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10418,"kind":"organization","name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","position":4,"cik":"0000728612","reported_name":"MERRILL LYNCH, PIERCE, FENNER & SMITH INC.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Auction Rate Preferred","published_at":"2011-06-08T15:39:38.000Z","date":"2011-06-07","kind":"other","acquired":false,"shares":831,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Shares were called for redemption by the issuer at par value."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The Auction Rate Preferred Shares (\"Shares\") reported in Table I represent Shares beneficially owned by Merrill Lynch, Pierce Fenner & Smith, Inc. (\"MLPFS\"), Bank of America, N.A. (\"BANA\") and Blue Ridge Investors, L.L.C. (\"Blue Ridge\").  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (\"Bank of America\") and Blue Ridge is a wholly owned subsidiary of BANA."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000932440-11-000730","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/728612/000093244011000730/edgar.xml","form_type":"4"}}],"next_cursor":"2011-06-08T15:39:38.000000Z,201509"}