{"transactions":[{"id":677988,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"officer":true,"officer_title":"Executive Vice President & CDO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2026-08-24T20:24:42.000Z","date":"2026-08-20","kind":"gift","planned":false,"acquired":false,"shares":1400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":272749,"source":{"system":"sec-edgar","filing":"0000906107-26-000072","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000072/form4.xml","form_type":"4"}},{"id":682117,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"officer":true,"officer_title":"Executive Vice President & CDO"}}],"security":"Restricted Units","published_at":"2026-08-20T01:08:00.000Z","date":"2026-08-17","kind":"grant","planned":false,"acquired":true,"shares":31525,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F11","text":"On August 17, 2026, the Reporting Person received a grant of restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\") the operating partnership of Vivmark Residential (the \"Company\"), in lieu of restricted shares of the Company."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests (\"OP Units\") in the OP when the capital account related to the RUs reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance). Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of VMRK on a one-for-one basis or cash value of such shares, at VMRK's option. The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F12","text":"The RUs are scheduled to vest on August 17, 2029."}],"balance_after":31525,"derivative":{"expiration_date":"2036-08-17","underlying":"Common Shares Of Beneficial Interest","underlying_shares":31525},"source":{"system":"sec-edgar","filing":"0000906107-26-000067","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000067/form4.xml","form_type":"4"}},{"id":682116,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"officer":true,"officer_title":"Executive Vice President & CDO"}}],"security":"Restricted Units","published_at":"2026-08-20T01:08:00.000Z","date":"2026-08-17","kind":"grant","planned":false,"acquired":true,"shares":15018,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"Each restricted unit award is subject to the same time-based vesting conditions that were previously applicable to the AVB Performance Award with respect to a number of limited partnership interests in the OP designated as restricted units (\"RUs\"), rounded to the nearest whole number of RUs, equal to the product of (i) the number of shares of AVB Common Stock subject to such AVB Performance Award, determined by deeming any performance-based vesting criteria applicable to such AVB Performance Award to be achieved based on the greater of target performance and the actual level of performance (which was calculated as of the latest practicable date prior to the Effective Time and certified by the Compensation Committee of the AVB board prior to the Effective Time) and (ii) 2.793."},{"field":"security","element":"securityTitle","label":"F6","text":"Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the \"Merger Agreement\"), by and among AvalonBay Communities, Inc., a Maryland corporation (\"AVB\"), Vivmark Residential (f/k/a Equity Residential), a Maryland real estate investment trust  (\"VMRK\"), ERP Operating Limited Partnership, an Illinois limited partnership (the \"OP\"), and Canopy Merger Sub LLC, a Maryland limited liability company (\"Merger Sub\"), AVB and VMRK combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of VMRK (the \"Merger\").  Merger Sub subsequently merged with and into the OP, with the OP continuing as the surviving entity."},{"field":"security","element":"securityTitle","label":"F7","text":"Pursuant to the Merger Agreement, each award outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") with respect to shares of common stock, par value $0.01 per share (the \"AVB Common Stock\"), of AVB that vest on the basis of the achievement of applicable performance goals (each, an \"AVB Performance Award\") was converted into a restricted unit award, in lieu of VMRK restricted shares."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests (\"OP Units\") in the OP when the capital account related to the RUs reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance). Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of VMRK on a one-for-one basis or cash value of such shares, at VMRK's option. The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"The RUs are scheduled to vest on March 1, 2029."}],"balance_after":15018,"derivative":{"expiration_date":"2036-08-17","underlying":"Common Shares Of Beneficial Interest","underlying_shares":15018},"source":{"system":"sec-edgar","filing":"0000906107-26-000067","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000067/form4.xml","form_type":"4"}},{"id":682115,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"officer":true,"officer_title":"Executive Vice President & CDO"}}],"security":"Restricted Units","published_at":"2026-08-20T01:08:00.000Z","date":"2026-08-17","kind":"grant","planned":false,"acquired":true,"shares":13292,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"Each restricted unit award is subject to the same time-based vesting conditions that were previously applicable to the AVB Performance Award with respect to a number of limited partnership interests in the OP designated as restricted units (\"RUs\"), rounded to the nearest whole number of RUs, equal to the product of (i) the number of shares of AVB Common Stock subject to such AVB Performance Award, determined by deeming any performance-based vesting criteria applicable to such AVB Performance Award to be achieved based on the greater of target performance and the actual level of performance (which was calculated as of the latest practicable date prior to the Effective Time and certified by the Compensation Committee of the AVB board prior to the Effective Time) and (ii) 2.793."},{"field":"security","element":"securityTitle","label":"F6","text":"Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the \"Merger Agreement\"), by and among AvalonBay Communities, Inc., a Maryland corporation (\"AVB\"), Vivmark Residential (f/k/a Equity Residential), a Maryland real estate investment trust  (\"VMRK\"), ERP Operating Limited Partnership, an Illinois limited partnership (the \"OP\"), and Canopy Merger Sub LLC, a Maryland limited liability company (\"Merger Sub\"), AVB and VMRK combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of VMRK (the \"Merger\").  Merger Sub subsequently merged with and into the OP, with the OP continuing as the surviving entity."},{"field":"security","element":"securityTitle","label":"F7","text":"Pursuant to the Merger Agreement, each award outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") with respect to shares of common stock, par value $0.01 per share (the \"AVB Common Stock\"), of AVB that vest on the basis of the achievement of applicable performance goals (each, an \"AVB Performance Award\") was converted into a restricted unit award, in lieu of VMRK restricted shares."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests (\"OP Units\") in the OP when the capital account related to the RUs reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance). Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of VMRK on a one-for-one basis or cash value of such shares, at VMRK's option. The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"The RUs are scheduled to vest on March 1, 2027. In addition, the RUs (including any OP Units into which they may automatically convert) are subject to a holding restriction until August 17, 2028."}],"balance_after":13292,"derivative":{"expiration_date":"2036-08-17","underlying":"Common Shares Of Beneficial Interest","underlying_shares":13292},"source":{"system":"sec-edgar","filing":"0000906107-26-000067","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000067/form4.xml","form_type":"4"}},{"id":682114,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"officer":true,"officer_title":"Executive Vice President & CDO"}}],"security":"Restricted Units","published_at":"2026-08-20T01:08:00.000Z","date":"2026-08-17","kind":"grant","planned":false,"acquired":true,"shares":13208,"price":0.5,"value":6604.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F5","text":"Each restricted unit award is subject to the same time-based vesting conditions that were previously applicable to the AVB Performance Award with respect to a number of limited partnership interests in the OP designated as restricted units (\"RUs\"), rounded to the nearest whole number of RUs, equal to the product of (i) the number of shares of AVB Common Stock subject to such AVB Performance Award, determined by deeming any performance-based vesting criteria applicable to such AVB Performance Award to be achieved based on the greater of target performance and the actual level of performance (which was calculated as of the latest practicable date prior to the Effective Time and certified by the Compensation Committee of the AVB board prior to the Effective Time) and (ii) 2.793."},{"field":"security","element":"securityTitle","label":"F6","text":"Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the \"Merger Agreement\"), by and among AvalonBay Communities, Inc., a Maryland corporation (\"AVB\"), Vivmark Residential (f/k/a Equity Residential), a Maryland real estate investment trust  (\"VMRK\"), ERP Operating Limited Partnership, an Illinois limited partnership (the \"OP\"), and Canopy Merger Sub LLC, a Maryland limited liability company (\"Merger Sub\"), AVB and VMRK combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of VMRK (the \"Merger\").  Merger Sub subsequently merged with and into the OP, with the OP continuing as the surviving entity."},{"field":"security","element":"securityTitle","label":"F7","text":"Pursuant to the Merger Agreement, each award outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") with respect to shares of common stock, par value $0.01 per share (the \"AVB Common Stock\"), of AVB that vest on the basis of the achievement of applicable performance goals (each, an \"AVB Performance Award\") was converted into a restricted unit award, in lieu of VMRK restricted shares."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests (\"OP Units\") in the OP when the capital account related to the RUs reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance). Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of VMRK on a one-for-one basis or cash value of such shares, at VMRK's option. The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"The RUs are scheduled to vest on March 1, 2027. In addition, the RUs (including any OP Units into which they may automatically convert) are subject to a holding restriction until August 17, 2028."}],"balance_after":13208,"derivative":{"expiration_date":"2036-08-17","underlying":"Common Shares Of Beneficial Interest","underlying_shares":13208},"source":{"system":"sec-edgar","filing":"0000906107-26-000067","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000067/form4.xml","form_type":"4"}},{"id":682113,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"officer":true,"officer_title":"Executive Vice President & CDO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2026-08-20T01:08:00.000Z","date":"2026-08-17","kind":"grant","planned":false,"acquired":true,"shares":35946,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the \"Merger Agreement\"), by and among AvalonBay Communities, Inc., a Maryland corporation (\"AVB\"), Vivmark Residential (f/k/a Equity Residential), a Maryland real estate investment trust  (\"VMRK\"), ERP Operating Limited Partnership, an Illinois limited partnership (the \"OP\"), and Canopy Merger Sub LLC, a Maryland limited liability company (\"Merger Sub\"), AVB and VMRK combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of VMRK (the \"Merger\"). Merger Sub subsequently merged with and into the OP, with the OP continuing as the surviving entity."},{"field":"kind","element":"transactionCoding","label":"F2","text":"Pursuant to the Merger Agreement, each award outstanding immediately prior to the effective time of the Merger (the \"Effective Time\") with respect to shares of common stock, par value $0.01 per share (the \"AVB Common Stock\"), of AVB that vest on the basis of the achievement of applicable performance goals (each, an \"AVB Performance Award\") was converted into a VMRK restricted share award."},{"field":"kind","element":"transactionCoding","label":"F3","text":"Each VMRK restricted share award is subject to the same time-based vesting conditions that were previously applicable to the AVB Performance Award with respect to a number of common shares of beneficial interest, $0.01 par value per share (\"VMRK Common Shares\"), of VMRK, rounded to the nearest whole number of shares, equal to the product of (i) the number of shares of AVB Common Stock subject to such AVB Performance Award, determined by deeming any performance-based vesting criteria applicable to such AVB Performance Award to be achieved based on the greater of target performance and the actual level of performance (which was calculated as of the latest practicable date prior to the Effective Time and certified by the Compensation Committee of the AVB board prior to the Effective Time) and (ii) 2.793."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Direct total includes restricted shares of VMRK scheduled to vest in the future."}],"balance_after":274149,"source":{"system":"sec-edgar","filing":"0000906107-26-000067","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000067/form4.xml","form_type":"4"}},{"id":686089,"issuer":{"id":23068,"kind":"organization","name":"AVALONBAY COMMUNITIES INC","symbol":"AVB"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Investment Officer"}}],"security":"Employee Stock Options (Right to Buy)","published_at":"2026-08-17T20:50:09.000Z","date":"2026-08-17","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":17458,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Pursuant to the Merger Agreement, effective as of the Effective Time, the Reporting Person's options to acquire AVB Common Stock that were outstanding at the Effective Time were converted into the right to receive options to acquire EQR Common Shares, where the number of EQR Common Shares subject to such converted option is equal to (i) the number of shares of AVB Common Stock subject to the corresponding AVB option award immediately prior to the Effective Time multiplied by (ii) the Exchange Ratio (rounded down to the nearest whole number of shares), and the exercise price of each converted option award is equal to (A) the exercise price of the corresponding AVB option award immediately prior to the Effective Time divided by (B) the Exchange Ratio (rounded up to the nearest whole cent)."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Pursuant to the Merger Agreement, effective as of the Effective Time, the Reporting Person's options to acquire AVB Common Stock that were outstanding at the Effective Time were converted into the right to receive options to acquire EQR Common Shares, where the number of EQR Common Shares subject to such converted option is equal to (i) the number of shares of AVB Common Stock subject to the corresponding AVB option award immediately prior to the Effective Time multiplied by (ii) the Exchange Ratio (rounded down to the nearest whole number of shares), and the exercise price of each converted option award is equal to (A) the exercise price of the corresponding AVB option award immediately prior to the Effective Time divided by (B) the Exchange Ratio (rounded up to the nearest whole cent)."}],"balance_after":0,"derivative":{"exercise_price":180.32,"exercise_date":"2023-03-01","expiration_date":"2031-02-25","underlying":"Common Stock","underlying_shares":17458},"source":{"system":"sec-edgar","filing":"0001193125-26-354224","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/915912/000119312526354224/ownership.xml","form_type":"4"}},{"id":686088,"issuer":{"id":23068,"kind":"organization","name":"AVALONBAY COMMUNITIES INC","symbol":"AVB"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Investment Officer"}}],"security":"Common Stock, par value $.01 per share","published_at":"2026-08-17T20:50:09.000Z","date":"2026-08-17","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":113020.9425,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the \"Merger Agreement\"), by and among AVB, EQR, ERP OP, and Canopy Merger Sub LLC, a Maryland limited liability company (\"Merger Sub\"), AVB and EQR combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of EQR (the \"Merger\"). In connection with the Merger, EQR changed its name to Vivmark Residential."},{"field":"kind","element":"transactionCoding","label":"F3","text":"At the effective time of the Merger (the \"Effective Time\"), each issued and outstanding share of AVB Common Stock held by the Reporting Person was automatically converted into the right to receive 2.793 (the \"Exchange Ratio\") common shares of beneficial interest, $0.01 par value per share (\"EQR Common Shares\"), of EQR, plus the right to receive cash in lieu of fractional EQR Common Shares, if any, into which such AVB Common Stock would have been converted. On August 14, 2026, the closing price of AVB Common Stock was $184.06 per share and the closing price of EQR Common Shares was $65.97 per share."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001193125-26-354224","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/915912/000119312526354224/ownership.xml","form_type":"4"}},{"id":686087,"issuer":{"id":23068,"kind":"organization","name":"AVALONBAY COMMUNITIES INC","symbol":"AVB"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Investment Officer"}}],"security":"Common Stock, par value $.01 per share","published_at":"2026-08-17T20:50:09.000Z","date":"2026-08-17","kind":"grant","planned":false,"acquired":true,"shares":27735,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the deemed acquisition of common stock, par value $0.01 per share (\"AVB Common Stock\"), of AvalonBay Communities, Inc., a Maryland corporation (\"AVB\"), pursuant to restricted stock units that were subject to performance-based vesting conditions (each, a \"PSU\"), which were previously granted to the Reporting Person. The number of PSUs reflects deemed achievement at the greater of actual performance and the target level for each respective award, as determined by the Compensation Committee of AVB effective as of the Effective Time (as defined below), and the PSUs converted into the right to receive restricted shares of Equity Residential, a Maryland real estate investment trust (\"EQR\") or limited partnership interests in ERP Operating Limited Partnership, an Illinois limited partnership (\"ERP OP\"), the operating partnership of EQR, in each case, subject to the same time-based vesting conditions that were previously applicable to the PSUs."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"This total includes shares of AVB Common Stock, restricted shares, PSUs deemed to have been earned as of the Effective Time and shares acquired through AVB's Employee Stock Purchase Plan."}],"balance_after":113020.9425,"source":{"system":"sec-edgar","filing":"0001193125-26-354224","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/915912/000119312526354224/ownership.xml","form_type":"4"}},{"id":731103,"issuer":{"id":23068,"kind":"organization","name":"AVALONBAY COMMUNITIES INC","symbol":"AVB"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Investment Officer"}}],"security":"Common Stock, par value $.01 per share","published_at":"2026-06-22T20:20:19.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":7595,"price":177.23,"value":1346061.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Reflects withholding of shares by the Company to cover tax withholding obligations on the vesting of restricted stock and performance share unit awards under the Company's Second Amended and Restated 2009 Equity Incentive Plan. The original Form 4 filing has been amended to reflect the correct number of shares withheld."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including restricted\nshares."}],"balance_after":85279.8925,"source":{"system":"sec-edgar","filing":"0001193125-26-277557","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/915912/000119312526277557/ownership.xml","form_type":"4/A","original_submission_date":"2026-03-03"}},{"id":870851,"issuer":{"id":23068,"kind":"organization","name":"AVALONBAY COMMUNITIES INC","symbol":"AVB"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Investment Officer"}}],"security":"Common Stock, par value $.01 per share","published_at":"2026-03-03T22:08:49.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":5706,"price":177.23,"value":1011274.38,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Reflects withholding of shares by the Company to cover tax withholding obligations on the vesting of restricted stock and performance share unit awards under the Company's Second Amended and Restated 2009 Equity Incentive Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including restricted\nshares."}],"balance_after":87168.8925,"source":{"system":"sec-edgar","filing":"0001193125-26-088716","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/915912/000119312526088716/ownership.xml","form_type":"4"}},{"id":875375,"issuer":{"id":23068,"kind":"organization","name":"AVALONBAY COMMUNITIES INC","symbol":"AVB"},"owners":[{"id":20555,"kind":"person","name":"Birenbaum Matthew H.","position":1,"cik":"0001532949","reported_name":"Birenbaum Matthew H.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Investment Officer"}}],"security":"Common Stock, par value $.01 per 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