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Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company'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":"F3","text":"The RUs are scheduled to vest on February 9, 2026."}],"balance_after":106959,"derivative":{"expiration_date":"2033-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":106959},"source":{"system":"sec-edgar","filing":"0000906107-26-000005","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000090610726000005/form4.xml","form_type":"4"}},{"id":953505,"issuer":{"id":3380,"kind":"organization","name":"REGENCY CENTERS CORP"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true}}],"security":"Restricted Stock Grant","published_at":"2026-01-05T17:25:10.000Z","date":"2026-01-02","kind":"grant","planned":false,"acquired":true,"shares":619,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Shares vest 100% on the first anniversary of the date of grant and reflect partial grant of shares for the reporting person's service on the Board of Directors of the Issuer until the next annual meeting of Shareholders."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Shares vest 100% on the first anniversary of the date of grant and reflect partial grant of shares for the reporting person's service on the Board of Directors of the Issuer until the next annual meeting of Shareholders."}],"balance_after":619,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":619},"source":{"system":"sec-edgar","filing":"0000910606-26-000007","document":"primary_01.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/910606/000091060626000007/primary_01.xml","form_type":"4"}},{"id":1279326,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2025-02-07T21:09:07.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":22095,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"On February 5, 2025, the reporting person received a grant of Series 2025B restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the OP (\"OP Units\") 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company'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":"F4","text":"The Restricted Units are scheduled to vest on February 5, 2028."}],"balance_after":22095,"derivative":{"expiration_date":"2035-02-05","underlying":"Common Shares Of Beneficial Interest","underlying_shares":22095},"source":{"system":"sec-edgar","filing":"0001127602-25-003556","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760225003556/form4.xml","form_type":"4"}},{"id":1279325,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2025-02-07T21:09:07.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":113455,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents share options scheduled to vest in approximately three equal installments on February 5, 2026, February 5, 2027 and February 5, 2028."}],"balance_after":113455,"derivative":{"exercise_price":71.93,"expiration_date":"2035-02-05","underlying":"Common Shares Of Beneficial Interest","underlying_shares":113455},"source":{"system":"sec-edgar","filing":"0001127602-25-003556","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760225003556/form4.xml","form_type":"4"}},{"id":1298246,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2025-01-22T21:20:42.000Z","date":"2025-01-17","kind":"grant","planned":false,"acquired":true,"shares":68655,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2022 Long-Term Incentive Plan."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") 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 the Company on a one-for-one basis or cash value of such shares, at the Company's option.  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Subject to the vesting requirements of the grant and certain other restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  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Such target has been reached and these RUs have converted to OP Units.  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The RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"On February 15, 2023, the reporting person received a grant of Series 2023B restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  RUs are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the OP (\"OP Units\") 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).  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Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company's option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on February 13, 2023."}],"balance_after":11370,"derivative":{"expiration_date":"2030-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":11370},"source":{"system":"sec-edgar","filing":"0001127602-23-002181","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760223002181/form4.xml","form_type":"4"}},{"id":2266523,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2022-05-18T20:16:13.000Z","date":"2022-05-16","kind":"grant","acquired":true,"shares":1583,"price":63.17,"value":99998.11,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired through Equity Residential's Employee Share Purchase Plan."}],"balance_after":21980,"source":{"system":"sec-edgar","filing":"0001127602-22-014942","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222014942/form4.xml","form_type":"4"}},{"id":2410679,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2022-02-07T21:52:30.000Z","date":"2022-02-03","kind":"grant","acquired":true,"shares":24467,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"On February 3, 2022, the reporting person received a grant of Series 2022C restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Subject to certain restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"On February 3, 2022, the reporting person received a grant of Series 2022C restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Subject to certain restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Restricted Units vested on February 3, 2022, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":24467,"derivative":{"expiration_date":"2032-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":24467},"source":{"system":"sec-edgar","filing":"0001127602-22-003576","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003576/form4.xml","form_type":"4"}},{"id":2410678,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2022-02-07T21:52:30.000Z","date":"2022-02-03","kind":"grant","acquired":true,"shares":30349,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"On February 3, 2022, the reporting person received a grant of Series 2022B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On February 3, 2022, the reporting person received a grant of Series 2022B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on February 3, 2025."}],"balance_after":30349,"derivative":{"expiration_date":"2032-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":30349},"source":{"system":"sec-edgar","filing":"0001127602-22-003576","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003576/form4.xml","form_type":"4"}},{"id":2427069,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2022-01-25T21:25:57.000Z","date":"2022-01-21","kind":"grant","acquired":true,"shares":27166,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2019 Long-Term Incentive Plan.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Such target has been reached and these Restricted Units have converted to OP Units.  Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company's option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on February 3, 2022."}],"balance_after":27166,"derivative":{"expiration_date":"2029-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":27166},"source":{"system":"sec-edgar","filing":"0001127602-22-002048","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222002048/form4.xml","form_type":"4"}},{"id":2856136,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2021-02-17T21:42:21.000Z","date":"2021-02-12","kind":"grant","acquired":true,"shares":9329,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"On February 12, 2021, the reporting person received a grant of Series 2021B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"On February 12, 2021, the reporting person received a grant of Series 2021B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Restricted Units are scheduled to vest on February 12, 2024."}],"balance_after":9329,"derivative":{"expiration_date":"2031-02-12","underlying":"Common Shares Of Beneficial Interest","underlying_shares":9329},"source":{"system":"sec-edgar","filing":"0001127602-21-006229","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221006229/form4.xml","form_type":"4"}},{"id":2856135,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2021-02-17T21:42:21.000Z","date":"2021-02-12","kind":"grant","acquired":true,"shares":75462,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents share options scheduled to vest in three equal installments on February 12, 2022, February 12, 2023 and February 12, 2024."}],"balance_after":75462,"derivative":{"exercise_price":67.48,"expiration_date":"2031-02-12","underlying":"Common Shares Of Beneficial Interest","underlying_shares":75462},"source":{"system":"sec-edgar","filing":"0001127602-21-006229","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221006229/form4.xml","form_type":"4"}},{"id":2896262,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2021-01-26T21:25:46.000Z","date":"2021-01-22","kind":"grant","acquired":true,"shares":11812,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2018 Long-Term Incentive Plan.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Such target has been reached and these Restricted Units have converted to OP Units.  Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company's option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on February 12, 2021."}],"balance_after":11812,"derivative":{"expiration_date":"2028-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":11812},"source":{"system":"sec-edgar","filing":"0001127602-21-002593","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221002593/form4.xml","form_type":"4"}},{"id":3260737,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2020-02-20T21:36:51.000Z","date":"2020-02-19","kind":"exercise","acquired":false,"shares":50000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents share options scheduled to vest in three equal installments on February 1, 2019, February 1, 2020 and February 1, 2021."}],"balance_after":82975,"derivative":{"exercise_price":60.33,"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001127602-20-006688","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220006688/form4.xml","form_type":"4"}},{"id":3260736,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-02-20T21:36:51.000Z","date":"2020-02-19","kind":"sale","acquired":false,"shares":50000,"price":85.42,"value":4271000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $85.32 to $85.63.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":20397,"source":{"system":"sec-edgar","filing":"0001127602-20-006688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220006688/form4.xml","form_type":"4"}},{"id":3260735,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-02-20T21:36:51.000Z","date":"2020-02-19","kind":"exercise","acquired":true,"shares":50000,"price":60.33,"value":3016500.0,"ownership":{"direct":true},"balance_after":70397,"source":{"system":"sec-edgar","filing":"0001127602-20-006688","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220006688/form4.xml","form_type":"4"}},{"id":3293101,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2020-02-04T21:41:14.000Z","date":"2020-01-31","kind":"grant","acquired":true,"shares":30291,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On January 31, 2020, the reporting person received a grant of Series 2020B restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on January 31, 2023."}],"balance_after":30291,"derivative":{"expiration_date":"2030-01-31","underlying":"Common Shares Of Beneficial Interest","underlying_shares":30291},"source":{"system":"sec-edgar","filing":"0001127602-20-003521","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220003521/form4.xml","form_type":"4"}},{"id":3306753,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2020-01-21T21:43:00.000Z","date":"2020-01-16","kind":"grant","acquired":true,"shares":25395,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2017 Long-Term Incentive Plan.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units reaches a specified target for federal income tax purposes (provided such target is reached within ten years of issuance).  Such target has been reached and these Restricted Units have converted to OP Units.  Subject to the vesting requirements of the grant and certain other conditions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or cash value of such shares, at the Company's option."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on January 30, 2020."}],"balance_after":25395,"derivative":{"expiration_date":"2027-01-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":25395},"source":{"system":"sec-edgar","filing":"0001127602-20-002084","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220002084/form4.xml","form_type":"4"}},{"id":3517412,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2019-05-21T20:26:08.000Z","date":"2019-05-17","kind":"exercise","acquired":false,"shares":59385,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents share options scheduled to vest in approximately three equal installments on February 2, 2018, February 2, 2019 and February 2, 2020."}],"balance_after":29693,"derivative":{"exercise_price":60.76,"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":59385},"source":{"system":"sec-edgar","filing":"0001127602-19-019364","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219019364/form4.xml","form_type":"4"}},{"id":3517411,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-05-21T20:26:08.000Z","date":"2019-05-17","kind":"sale","acquired":false,"shares":59385,"price":76.6,"value":4548891.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $76.33 to $76.85.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":20397,"source":{"system":"sec-edgar","filing":"0001127602-19-019364","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219019364/form4.xml","form_type":"4"}},{"id":3517410,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-05-21T20:26:08.000Z","date":"2019-05-17","kind":"exercise","acquired":true,"shares":59385,"price":60.76,"value":3608232.6,"ownership":{"direct":true},"balance_after":79782,"source":{"system":"sec-edgar","filing":"0001127602-19-019364","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219019364/form4.xml","form_type":"4"}},{"id":3675600,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Restricted Units","published_at":"2019-02-05T22:03:40.000Z","date":"2019-02-01","kind":"grant","acquired":true,"shares":19932,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On February 1, 2019, the reporting person received a grant of Series 2019C restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), in lieu of restricted shares of the Company as part of the Company's annual grant of long-term compensation.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on February 1, 2022."}],"balance_after":19932,"derivative":{"expiration_date":"2029-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":19932},"source":{"system":"sec-edgar","filing":"0001127602-19-004149","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219004149/form4.xml","form_type":"4"}},{"id":3691158,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":true,"officer_title":"President & CEO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-01-22T21:32:28.000Z","date":"2019-01-17","kind":"grant","acquired":true,"shares":4112,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted shares of Equity Residential (the \"Company\") issued in connection with the settlement of an award under the Company's 2016 Long-Term Incentive Plan which are scheduled to vest on January 31, 2019."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":24509,"source":{"system":"sec-edgar","filing":"0001127602-19-002468","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219002468/form4.xml","form_type":"4"}},{"id":3759855,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2018-11-19T22:14:22.000Z","date":"2018-11-15","kind":"exercise","acquired":false,"shares":20912,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"Represents options which vested on February 6, 2015, February 6, 2016 and February 6, 2017."}],"balance_after":0,"derivative":{"exercise_price":48.13,"expiration_date":"2024-02-06","underlying":"Common Shares Of Beneficial Interest","underlying_shares":20912},"source":{"system":"sec-edgar","filing":"0001127602-18-033781","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033781/form4.xml","form_type":"4"}},{"id":3759854,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2018-11-19T22:14:22.000Z","date":"2018-11-15","kind":"exercise","acquired":false,"shares":16382,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents options which vested in three equal installments on February 3, 2013, February 3, 2014 and February 3, 2015."}],"balance_after":0,"derivative":{"exercise_price":51.34,"expiration_date":"2022-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":16382},"source":{"system":"sec-edgar","filing":"0001127602-18-033781","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033781/form4.xml","form_type":"4"}},{"id":3759853,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-11-19T22:14:22.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":20912,"price":67.64,"value":1414487.68,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $67.47 to $67.79.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":20397,"source":{"system":"sec-edgar","filing":"0001127602-18-033781","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033781/form4.xml","form_type":"4"}},{"id":3759852,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-11-19T22:14:22.000Z","date":"2018-11-15","kind":"sale","acquired":false,"shares":16382,"price":67.56,"value":1106767.92,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $67.47 to $67.64.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":41309,"source":{"system":"sec-edgar","filing":"0001127602-18-033781","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033781/form4.xml","form_type":"4"}},{"id":3759851,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-11-19T22:14:22.000Z","date":"2018-11-15","kind":"exercise","acquired":true,"shares":20912,"price":48.13,"value":1006494.56,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":57691,"source":{"system":"sec-edgar","filing":"0001127602-18-033781","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033781/form4.xml","form_type":"4"}},{"id":3759850,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-11-19T22:14:22.000Z","date":"2018-11-15","kind":"exercise","acquired":true,"shares":16382,"price":51.34,"value":841051.88,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":36779,"source":{"system":"sec-edgar","filing":"0001127602-18-033781","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033781/form4.xml","form_type":"4"}},{"id":4071031,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-02-08T21:35:45.000Z","date":"2018-02-07","kind":"sale","acquired":false,"shares":7355,"price":58.182,"value":427928.61,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the sale of shares for the payment of tax liability incurred upon the vesting of restricted shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":20397,"source":{"system":"sec-edgar","filing":"0001127602-18-004609","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004609/form4.xml","form_type":"4"}},{"id":4077439,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Restricted Units","published_at":"2018-02-05T21:44:10.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":10314,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"On February 1, 2018, the reporting person elected to receive a grant of Series 2018C restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"On February 1, 2018, the reporting person elected to receive a grant of Series 2018C restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Restricted Units vested on February 1, 2018, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":10314,"derivative":{"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":10314},"source":{"system":"sec-edgar","filing":"0001127602-18-004022","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004022/form4.xml","form_type":"4"}},{"id":4077438,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2018-02-05T21:44:10.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":132975,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents share options scheduled to vest in three equal installments on February 1, 2019, February 1, 2020 and February 1, 2021."}],"balance_after":132975,"derivative":{"exercise_price":60.33,"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":132975},"source":{"system":"sec-edgar","filing":"0001127602-18-004022","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004022/form4.xml","form_type":"4"}},{"id":4097043,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Restricted Units","published_at":"2018-01-18T21:18:07.000Z","date":"2018-01-17","kind":"grant","acquired":true,"shares":2594,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2015 Long-Term Incentive Plan.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents restricted limited partnership interests (\"Restricted Units\") in ERP Operating Limited Partnership (the \"Operating Partnership\"), the operating partnership of Equity Residential (the \"Company\"), retained in connection with the settlement of an award under the Company's 2015 Long-Term Incentive Plan.  Restricted Units are a class of partnership interest that automatically convert into an equal number of limited partnership interests of the Operating Partnership (\"OP Units\") when the capital account related to the Restricted Units 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 restrictions, OP Units are exchangeable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.  The Restricted Units reflected in this report also include any OP Units into which such Restricted Units automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Units are scheduled to vest on February 5, 2018."}],"balance_after":2594,"derivative":{"expiration_date":"2025-02-05","underlying":"Common Shares Of Beneficial Interest","underlying_shares":2594},"source":{"system":"sec-edgar","filing":"0001127602-18-002069","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218002069/form4.xml","form_type":"4"}},{"id":4173614,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-03","kind":"exercise","acquired":false,"shares":45400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents options which vested in three equal installments on February 3, 2013, February 3, 2014 and February 3, 2015."}],"balance_after":16382,"derivative":{"exercise_price":51.34,"expiration_date":"2022-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":45400},"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173613,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-02","kind":"exercise","acquired":false,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents options which vested in three equal installments on February 3, 2013, February 3, 2014 and February 3, 2015."}],"balance_after":61782,"derivative":{"exercise_price":51.34,"expiration_date":"2022-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173612,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-01","kind":"exercise","acquired":false,"shares":1600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents options which vested in three equal installments on February 3, 2013, February 3, 2014 and February 3, 2015."}],"balance_after":64782,"derivative":{"exercise_price":51.34,"expiration_date":"2022-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":1600},"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173611,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-03","kind":"sale","acquired":false,"shares":45400,"price":68.0022,"value":3087299.88,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $68.00 to $68.055.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":27752,"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173610,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-03","kind":"exercise","acquired":true,"shares":45400,"price":51.34,"value":2330836.0,"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":73152,"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173609,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-02","kind":"sale","acquired":false,"shares":3000,"price":68.007,"value":204021.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $68.00 to $68.04.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":27752,"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173608,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-02","kind":"exercise","acquired":true,"shares":3000,"price":51.34,"value":154020.0,"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":30752,"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173607,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-01","kind":"sale","acquired":false,"shares":1600,"price":68.006,"value":108809.6,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price represents the weighted average price of the shares sold.  The shares were sold within a range of $68.00 to $68.04.  The reporting person will provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":27752,"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4173606,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2017-11-03T21:40:46.000Z","date":"2017-11-01","kind":"exercise","acquired":true,"shares":1600,"price":51.34,"value":82144.0,"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":29352,"source":{"system":"sec-edgar","filing":"0001127602-17-031238","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031238/form4.xml","form_type":"4"}},{"id":4445484,"issuer":{"id":4268,"kind":"organization","name":"Brookdale Senior Living Inc.","symbol":"BKD"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-02-16T00:03:53.000Z","date":"2017-02-13","kind":"grant","acquired":true,"shares":6738,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Acquisition of restricted stock units under the Brookdale Senior Living Inc. 2014 Omnibus Incentive Plan pursuant to the issuer's outside director compensation program. Each restricted stock unit will generally be payable in the form of one share of the issuer's common stock following the reporting person's termination of service as a member of the issuer's Board of Directors."}],"balance_after":14289,"source":{"system":"sec-edgar","filing":"0001140361-17-007807","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1414146/000114036117007807/doc1.xml","form_type":"4"}},{"id":4467028,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":25582,"kind":"person","name":"Parrell Mark J.","position":1,"cik":"0001414146","reported_name":"Parrell Mark J.","relationship":{"officer":true,"officer_title":"Executive Vice President & CFO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2017-02-06T21:57:11.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":89078,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents share options scheduled to vest in approximately three equal installments on February 2, 2018, February 2, 2019 and February 2, 2020."}],"balance_after":89078,"derivative":{"exercise_price":60.76,"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":89078},"source":{"system":"sec-edgar","filing":"0001127602-17-004099","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217004099/form4.xml","form_type":"4"}}]}