{"transactions":[{"id":1279331,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2025-02-07T21:16:01.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":3967,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"On February 5, 2025, the reporting person received a grant of Series 2025C restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP\"), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","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 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 RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The Restricted Units vested on February 5, 2025, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":3967,"derivative":{"expiration_date":"2035-02-05","underlying":"Common Shares Of Beneficial Interest","underlying_shares":3967},"source":{"system":"sec-edgar","filing":"0001127602-25-003565","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760225003565/form4.xml","form_type":"4"}},{"id":1279330,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2025-02-07T21:16:01.000Z","date":"2025-02-05","kind":"grant","planned":false,"acquired":true,"shares":3967,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","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":"F2","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":"F3","text":"The Restricted Units are scheduled to vest on February 5, 2028."}],"balance_after":3967,"derivative":{"expiration_date":"2035-02-05","underlying":"Common Shares Of Beneficial Interest","underlying_shares":3967},"source":{"system":"sec-edgar","filing":"0001127602-25-003565","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760225003565/form4.xml","form_type":"4"}},{"id":1608563,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2024-03-01T21:12:42.000Z","date":"2024-02-28","kind":"grant","planned":false,"acquired":true,"shares":1976,"price":50.6,"value":99985.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired through Equity Residential's Employee Share Purchase Plan."}],"balance_after":44721,"source":{"system":"sec-edgar","filing":"0001127602-24-007839","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760224007839/form4.xml","form_type":"4"}},{"id":2009146,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2023-02-17T23:04:57.000Z","date":"2023-02-15","kind":"grant","acquired":true,"shares":8969,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"On February 15, 2023, the reporting person received a grant of Series 2023C restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus. 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 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 RUs reflected in this report also include any OP Units into which such RUs automatically convert."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"On February 15, 2023, the reporting person received a grant of Series 2023C restricted limited partnership interests (\"RUs\") in ERP Operating Limited Partnership (the \"OP), the operating partnership of Equity Residential (the \"Company\"), as an alternative to cash in connection with all or a portion of their performance bonus. 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 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 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 vested on February 15, 2023, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":8969,"derivative":{"expiration_date":"2033-02-15","underlying":"Common Shares Of Beneficial Interest","underlying_shares":8969},"source":{"system":"sec-edgar","filing":"0001127602-23-005927","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760223005927/form4.xml","form_type":"4"}},{"id":2009145,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2023-02-17T23:04:57.000Z","date":"2023-02-15","kind":"grant","acquired":true,"shares":8969,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","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). 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_price","element":"conversionOrExercisePrice","label":"F1","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). 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":"F2","text":"The Restricted Units are scheduled to vest on February 15, 2026."}],"balance_after":8969,"derivative":{"expiration_date":"2033-02-15","underlying":"Common Shares Of Beneficial Interest","underlying_shares":8969},"source":{"system":"sec-edgar","filing":"0001127602-23-005927","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760223005927/form4.xml","form_type":"4"}},{"id":2410664,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2022-02-07T21:23:15.000Z","date":"2022-02-03","kind":"grant","acquired":true,"shares":6404,"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":6404,"derivative":{"expiration_date":"2032-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":6404},"source":{"system":"sec-edgar","filing":"0001127602-22-003527","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003527/form4.xml","form_type":"4"}},{"id":2410663,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2022-02-07T21:23:15.000Z","date":"2022-02-03","kind":"grant","acquired":true,"shares":6404,"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":6404,"derivative":{"expiration_date":"2032-02-03","underlying":"Common Shares Of Beneficial Interest","underlying_shares":6404},"source":{"system":"sec-edgar","filing":"0001127602-22-003527","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760222003527/form4.xml","form_type":"4"}},{"id":2856118,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2021-02-17T21:15:24.000Z","date":"2021-02-12","kind":"grant","acquired":true,"shares":3504,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"On February 12, 2021, the reporting person received a grant of Series 2021C 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 12, 2021, the reporting person received a grant of Series 2021C 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 12, 2021, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":3504,"derivative":{"expiration_date":"2031-02-12","underlying":"Common Shares Of Beneficial Interest","underlying_shares":3504},"source":{"system":"sec-edgar","filing":"0001127602-21-006155","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221006155/form4.xml","form_type":"4"}},{"id":2856117,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2021-02-17T21:15:24.000Z","date":"2021-02-12","kind":"grant","acquired":true,"shares":8761,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","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":"F1","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":"F2","text":"The Restricted Units are scheduled to vest on February 12, 2024."}],"balance_after":8761,"derivative":{"expiration_date":"2031-02-12","underlying":"Common Shares Of Beneficial Interest","underlying_shares":8761},"source":{"system":"sec-edgar","filing":"0001127602-21-006155","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221006155/form4.xml","form_type":"4"}},{"id":3146163,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-05-18T20:21:28.000Z","date":"2020-05-14","kind":"grant","acquired":true,"shares":2045,"price":48.89,"value":99980.05,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired through Equity Residential's Employee Share Purchase Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":42744,"source":{"system":"sec-edgar","filing":"0001127602-20-016913","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220016913/form4.xml","form_type":"4"}},{"id":3293098,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2020-02-04T21:33:57.000Z","date":"2020-01-31","kind":"grant","acquired":true,"shares":3510,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F7","text":"On January 31, 2020, the reporting person received a grant of Series 2020C 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":"F8","text":"The Restricted Units vested on January 31, 2020, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":3510,"derivative":{"expiration_date":"2030-01-31","underlying":"Common Shares Of Beneficial Interest","underlying_shares":3510},"source":{"system":"sec-edgar","filing":"0001127602-20-003517","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220003517/form4.xml","form_type":"4"}},{"id":3293097,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2020-02-04T21:33:57.000Z","date":"2020-01-31","kind":"grant","acquired":true,"shares":3801,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","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.  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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":"F8","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":"F9","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":4864,"derivative":{"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":4864},"source":{"system":"sec-edgar","filing":"0001127602-18-004040","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004040/form4.xml","form_type":"4"}},{"id":4077447,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2018-02-05T22:01:46.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":4251,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F6","text":"On February 1, 2018, the reporting person received a grant of Series 2018B 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":"F6","text":"On February 1, 2018, the reporting person received a grant of Series 2018B 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":"F7","text":"The Restricted Units are scheduled to vest on February 1, 2021."}],"balance_after":4251,"derivative":{"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":4251},"source":{"system":"sec-edgar","filing":"0001127602-18-004040","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004040/form4.xml","form_type":"4"}},{"id":4077446,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2018-02-05T22:01:46.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":20327,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Represents share options scheduled to vest in three equal installments on February 1, 2019, February 1, 2020 and February 1, 2021."}],"balance_after":20327,"derivative":{"exercise_price":60.33,"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":20327},"source":{"system":"sec-edgar","filing":"0001127602-18-004040","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004040/form4.xml","form_type":"4"}},{"id":4077445,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-02-05T22:01:46.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":2071,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted shares scheduled to vest on February 1, 2021."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential (the \"Company\") scheduled to vest in the future."}],"balance_after":37202,"source":{"system":"sec-edgar","filing":"0001127602-18-004040","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218004040/form4.xml","form_type":"4"}},{"id":4467000,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2017-02-06T21:45:06.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":2901,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"On February 2, 2017, the reporting person elected to receive a grant of Series 2017C 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":"F6","text":"These Restricted Units vested on February 2, 2017, the date of the grant and remain subject to a two year hold requirement."}],"balance_after":2901,"derivative":{"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":2901},"source":{"system":"sec-edgar","filing":"0001127602-17-004076","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217004076/form4.xml","form_type":"4"}},{"id":4466999,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2017-02-06T21:45:06.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":25535,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The reporting person received a grant of options as an alternative to cash in connection with all or a portion of their performance bonus.  The options vested on February 2, 2017, the date of the grant."}],"balance_after":25535,"derivative":{"exercise_price":60.76,"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":25535},"source":{"system":"sec-edgar","filing":"0001127602-17-004076","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217004076/form4.xml","form_type":"4"}},{"id":4466998,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2017-02-06T21:45:06.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":4029,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"On February 2, 2017, the reporting person received a grant of Series 2017B 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":"These Restricted Units are scheduled to vest on February 2, 2020."}],"balance_after":4029,"derivative":{"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":4029},"source":{"system":"sec-edgar","filing":"0001127602-17-004076","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217004076/form4.xml","form_type":"4"}},{"id":4466997,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2017-02-06T21:45:06.000Z","date":"2017-02-02","kind":"grant","acquired":true,"shares":40534,"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":40534,"derivative":{"exercise_price":60.76,"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":40534},"source":{"system":"sec-edgar","filing":"0001127602-17-004076","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217004076/form4.xml","form_type":"4"}},{"id":4556040,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":83493,"kind":"person","name":"Altshuler Barry","position":1,"cik":"0001633670","reported_name":"Altshuler Barry","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2016-11-15T21:17:18.000Z","date":"2016-11-14","kind":"grant","acquired":true,"shares":1928,"price":51.85,"value":99966.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares acquired through Equity Residential's Employee Share Purchase Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":35131,"source":{"system":"sec-edgar","filing":"0001127602-16-067194","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760216067194/form4.xml","form_type":"4"}}]}