{"transactions":[{"id":2816348,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2021-03-03T21:20:43.000Z","date":"2021-03-01","kind":"grant","acquired":true,"shares":1882,"price":53.13,"value":99990.66,"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":55222,"source":{"system":"sec-edgar","filing":"0001127602-21-009123","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221009123/form4.xml","form_type":"4"}},{"id":2856124,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2021-02-17T21:30:52.000Z","date":"2021-02-12","kind":"grant","acquired":true,"shares":13813,"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":13813,"derivative":{"expiration_date":"2031-02-12","underlying":"Common Shares Of Beneficial Interest","underlying_shares":13813},"source":{"system":"sec-edgar","filing":"0001127602-21-006194","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221006194/form4.xml","form_type":"4"}},{"id":2856123,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2021-02-17T21:30:52.000Z","date":"2021-02-12","kind":"grant","acquired":true,"shares":13813,"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":13813,"derivative":{"expiration_date":"2031-02-12","underlying":"Common Shares Of Beneficial Interest","underlying_shares":13813},"source":{"system":"sec-edgar","filing":"0001127602-21-006194","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221006194/form4.xml","form_type":"4"}},{"id":2896264,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President"}}],"security":"Restricted Units","published_at":"2021-01-26T21:34:59.000Z","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":"0001127602-21-002602","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760221002602/form4.xml","form_type":"4"}},{"id":3146164,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-05-18T20:28:00.000Z","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":53339,"source":{"system":"sec-edgar","filing":"0001127602-20-016925","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220016925/form4.xml","form_type":"4"}},{"id":3293111,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Restricted Units","published_at":"2020-02-04T21:50:32.000Z","date":"2020-01-31","kind":"grant","acquired":true,"shares":18614,"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":18614,"derivative":{"expiration_date":"2030-01-31","underlying":"Common Shares Of Beneficial Interest","underlying_shares":18614},"source":{"system":"sec-edgar","filing":"0001127602-20-003527","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220003527/form4.xml","form_type":"4"}},{"id":3293110,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Restricted Units","published_at":"2020-02-04T21:50:32.000Z","date":"2020-01-31","kind":"grant","acquired":true,"shares":8816,"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.  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":"The Restricted Units are scheduled to vest on January 31, 2023."}],"balance_after":8816,"derivative":{"expiration_date":"2030-01-31","underlying":"Common Shares Of Beneficial Interest","underlying_shares":8816},"source":{"system":"sec-edgar","filing":"0001127602-20-003527","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220003527/form4.xml","form_type":"4"}},{"id":3293109,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-02-04T21:50:32.000Z","date":"2020-01-31","kind":"grant","acquired":true,"shares":8376,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted shares scheduled to vest on January 31, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of Equity Residential scheduled to vest in the future."}],"balance_after":51294,"source":{"system":"sec-edgar","filing":"0001127602-20-003527","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220003527/form4.xml","form_type":"4"}},{"id":3306754,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2020-01-21T21:48:55.000Z","date":"2020-01-16","kind":"grant","acquired":true,"shares":24915,"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 2017 Long-Term Incentive Plan which are scheduled to vest on January 30, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Direct total includes restricted shares of the Company scheduled to vest in the future."}],"balance_after":42918,"source":{"system":"sec-edgar","filing":"0001127602-20-002087","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760220002087/form4.xml","form_type":"4"}},{"id":3382576,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-11-04T21:25:23.000Z","date":"2019-10-31","kind":"sale","acquired":false,"shares":13277,"price":89,"value":1181653.0,"ownership":{"direct":true},"balance_after":18003,"source":{"system":"sec-edgar","filing":"0001127602-19-031660","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219031660/form4.xml","form_type":"4"}},{"id":3423911,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-09-04T20:21:06.000Z","date":"2019-08-30","kind":"sale","acquired":false,"shares":10000,"price":84.6,"value":846000.0,"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 $84.60 to $84.61.  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":31280,"source":{"system":"sec-edgar","filing":"0001127602-19-027879","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219027879/form4.xml","form_type":"4"}},{"id":3441627,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"exercise","acquired":false,"shares":3855,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"Represents share options scheduled to vest in approximately three equal installments on February 1, 2019, February 1, 2020 and February 1, 2021."}],"balance_after":67711,"derivative":{"exercise_price":60.33,"expiration_date":"2028-02-01","underlying":"Common Shares Of Beneficial Interest","underlying_shares":3855},"source":{"system":"sec-edgar","filing":"0001127602-19-026415","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219026415/form4.xml","form_type":"4"}},{"id":3441626,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"exercise","acquired":false,"shares":14145,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","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":29933,"derivative":{"exercise_price":60.76,"expiration_date":"2027-02-02","underlying":"Common Shares Of Beneficial Interest","underlying_shares":14145},"source":{"system":"sec-edgar","filing":"0001127602-19-026415","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219026415/form4.xml","form_type":"4"}},{"id":3441625,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"sale","acquired":false,"shares":3855,"price":81.06,"value":312486.3,"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 $80.62 to $81.31.  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":41280,"source":{"system":"sec-edgar","filing":"0001127602-19-026415","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219026415/form4.xml","form_type":"4"}},{"id":3441624,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"exercise","acquired":true,"shares":3855,"price":60.33,"value":232572.15,"ownership":{"direct":true},"balance_after":45135,"source":{"system":"sec-edgar","filing":"0001127602-19-026415","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219026415/form4.xml","form_type":"4"}},{"id":3441623,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"sale","acquired":false,"shares":14145,"price":80.64,"value":1140652.8,"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 $80.50 to $81.08.  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":41280,"source":{"system":"sec-edgar","filing":"0001127602-19-026415","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219026415/form4.xml","form_type":"4"}},{"id":3441622,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"exercise","acquired":true,"shares":14145,"price":60.76,"value":859450.2,"ownership":{"direct":true},"balance_after":55425,"source":{"system":"sec-edgar","filing":"0001127602-19-026415","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219026415/form4.xml","form_type":"4"}},{"id":3441621,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2019-08-12T20:39:51.000Z","date":"2019-08-09","kind":"sale","acquired":false,"shares":15302,"price":80.53,"value":1232270.06,"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 $80.50 to $80.67.  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The shares were sold within a range of $77.20 to $77.32.  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The shares were sold within a range of $74.75 to $74.86.  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":56582,"source":{"system":"sec-edgar","filing":"0001127602-19-013131","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760219013131/form4.xml","form_type":"4"}},{"id":3580280,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial 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The shares were sold within a range of $72.00 to $72.08.  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":56582,"source":{"system":"sec-edgar","filing":"0001127602-18-035873","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218035873/form4.xml","form_type":"4"}},{"id":3736574,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-12-11T21:36:35.000Z","date":"2018-12-07","kind":"exercise","acquired":true,"shares":12916,"price":46.72,"value":603435.52,"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":69498,"source":{"system":"sec-edgar","filing":"0001127602-18-035873","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218035873/form4.xml","form_type":"4"}},{"id":3763671,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Non-qualified Stock Option (Right to Buy)","published_at":"2018-11-15T21:34:07.000Z","date":"2018-11-13","kind":"exercise","acquired":false,"shares":35000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents share options which vested in approximately three equal installments on February 7, 2014, February 7, 2015 and February 7, 2016."}],"balance_after":12916,"derivative":{"exercise_price":46.72,"expiration_date":"2023-02-07","underlying":"Common Shares Of Beneficial Interest","underlying_shares":35000},"source":{"system":"sec-edgar","filing":"0001127602-18-033179","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760218033179/form4.xml","form_type":"4"}},{"id":3763670,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common Shares Of Beneficial Interest","published_at":"2018-11-15T21:34:07.000Z","date":"2018-11-13","kind":"sale","acquired":false,"shares":25000,"price":67.75,"value":1693750.0,"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 $67.75 to $67.76.  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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 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.  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The shares were sold within a range of $69.21 to $69.69.  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":86436,"source":{"system":"sec-edgar","filing":"0001127602-17-031595","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906107/000112760217031595/form4.xml","form_type":"4"}},{"id":4169487,"issuer":{"id":499,"kind":"organization","name":"VIVMARK RESIDENTIAL","symbol":"VMRK"},"owners":[{"id":141934,"kind":"person","name":"GEORGE ALAN W","position":1,"cik":"0001219715","reported_name":"GEORGE ALAN W","relationship":{"officer":true,"officer_title":"Executive Vice President & CIO"}}],"security":"Common 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