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CONSOLIDATED STATEMENTS OF CHANGES IN CAPITAL OF ERP OPERATING LIMITED PARTNERSHIP (Unaudited) - USD ($) $ in Thousands | Total | ERPOP [Member] | Preferred Stock [Member] ERPOP [Member] | GENERAL PARTNER [Member] ERPOP [Member] | LIMITED PARTNERS [Member] ERPOP [Member] | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) [Member] ERPOP [Member] | DISTRIBUTIONS [Member] ERPOP [Member] | PARTIALLY OWNED PROPERTIES [Member] ERPOP [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance, beginning of year at Dec. 31, 2022 |  |  | $ 37,280 | $ 11,138,706 | $ 209,961 | $ (2,547) |  |
Balance, beginning of year at Dec. 31, 2022 |  |  |  |  |  |  |  | $ (721)
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 4,659 | (4,659) |  |  |
Exercise of EQR share options |  |  |  | 11,358 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 2,124 |  |  |  |
EQR restricted shares |  |  |  | 7,945 | 1 |  |  |
EQR share options |  |  |  | 3,125 |  |  |  |
EQR ESPP discount |  |  |  | 398 |  |  |  |
Net income available to Units - General Partner |  | $ 349,693 |  | 349,693 |  |  |  |
OP Units - General Partner distributions |  |  |  | (502,070) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | 148 |  |  |  |
Acquisition of Noncontrolling Interests – Partially Owned Properties |  |  |  | (900) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | (39,123) |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | 6,815 | (6,815) |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 10,867 |  |  |
Net income available to Units - Limited Partners |  | 11,613 |  |  | 11,613 |  |  |
Units - Limited Partners distributions |  |  |  |  | (15,640) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | 2,077 |  |  |
Unrealized holding gains (losses) arising during the period | $ 4,054 | 4,054 |  |  |  | 4,054 |  |
Losses reclassified into earnings from other comprehensive income | 2,201 | 2,201 |  |  |  | 2,201 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | $ 1.325 |
Net income attributable to Noncontrolling Interests | 364,933 | 364,933 |  |  |  |  |  | 2,082
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 9
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (3,261)
Acquisitions of Noncontrolling Interests - Partially Owned Properties |  |  |  |  |  |  |  | (2,837)
Balance, end of period at Jun. 30, 2023 |  |  | 37,280 | 10,982,878 | 207,405 | 3,708 |  |
Balance, end of period at Jun. 30, 2023 |  |  |  |  |  |  |  | (4,728)
Balance, beginning of year at Mar. 31, 2023 |  |  | 37,280 | 11,111,240 | 211,718 | (11,232) |  |
Balance, beginning of year at Mar. 31, 2023 |  |  |  |  |  |  |  | (2,553)
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 986 | (986) |  |  |
Exercise of EQR share options |  |  |  | 3,246 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 672 |  |  |  |
EQR restricted shares |  |  |  | 4,291 | 1 |  |  |
EQR share options |  |  |  | 1,628 |  |  |  |
EQR ESPP discount |  |  |  | 138 |  |  |  |
Net income available to Units - General Partner |  | 138,430 |  | 138,430 |  |  |  |
OP Units - General Partner distributions |  |  |  | (251,101) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (343) |  |  |  |
Acquisition of Noncontrolling Interests – Partially Owned Properties |  |  |  | (900) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | (33,177) |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | 7,768 | (7,768) |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 6,213 |  |  |
Net income available to Units - Limited Partners |  | 4,554 |  |  | 4,554 |  |  |
Units - Limited Partners distributions |  |  |  |  | (7,736) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | 1,409 |  |  |
Unrealized holding gains (losses) arising during the period | 13,834 | 13,834 |  |  |  | 13,834 |  |
Losses reclassified into earnings from other comprehensive income | 1,106 | 1,106 |  |  |  | 1,106 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | 0.6625 |
Net income attributable to Noncontrolling Interests | 144,862 | 144,862 |  |  |  |  |  | 1,105
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 9
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (452)
Acquisitions of Noncontrolling Interests - Partially Owned Properties |  |  |  |  |  |  |  | (2,837)
Balance, end of period at Jun. 30, 2023 |  |  | 37,280 | 10,982,878 | 207,405 | 3,708 |  |
Balance, end of period at Jun. 30, 2023 |  |  |  |  |  |  |  | (4,728)
Balance, beginning of year at Dec. 31, 2023 |  |  | 37,280 | 11,042,844 | 202,306 | 5,704 |  |
Balance, beginning of year at Dec. 31, 2023 |  |  |  |  |  |  |  | 994
Partial redemption |  | (20,125) |  |  |  |  |  |
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 5,048 | (5,048) |  |  |
Exercise of EQR share options |  |  |  | 6,480 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 2,449 |  |  |  |
EQR restricted shares |  |  |  | 9,383 | 2 |  |  |
EQR share options |  |  |  | 2,507 |  |  |  |
EQR ESPP discount |  |  |  | 501 |  |  |  |
OP Units repurchased and retired | 38,500 |  |  | (38,474) |  |  |  |
Net income available to Units - General Partner |  | 470,924 |  | 470,924 |  |  |  |
OP Units - General Partner distributions |  |  |  | (511,720) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (598) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | (39,058) |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | 1,532 | (1,532) |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 10,236 |  |  |
Net income available to Units - Limited Partners |  | 13,278 |  |  | 13,278 |  |  |
Units - Limited Partners distributions |  |  |  |  | (15,875) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | 665 |  |  |
Losses reclassified into earnings from other comprehensive income | 1,210 | 1,210 |  |  |  | 1,210 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | 1.35 |
Net income attributable to Noncontrolling Interests | 488,587 | 488,587 |  |  |  |  |  | 2,039
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 458
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (2,786)
Other |  |  |  |  |  |  |  | (1,000)
Balance, end of period at Jun. 30, 2024 |  |  | 17,155 | 10,951,818 | 204,032 | 6,914 |  |
Balance, end of period at Jun. 30, 2024 |  |  |  |  |  |  |  | (295)
Balance, beginning of year at Mar. 31, 2024 |  |  | 17,155 | 11,044,203 | 207,272 | 6,314 |  |
Balance, beginning of year at Mar. 31, 2024 |  |  |  |  |  |  |  | (1,131)
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 4,794 | (4,794) |  |  |
Exercise of EQR share options |  |  |  | 2,079 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 805 |  |  |  |
EQR restricted shares |  |  |  | 4,887 |  |  |  |
EQR share options |  |  |  | 1,218 |  |  |  |
EQR ESPP discount |  |  |  | 205 |  |  |  |
Net income available to Units - General Partner |  | 177,128 |  | 177,128 |  |  |  |
OP Units - General Partner distributions |  |  |  | (255,877) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (371) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | (30,243) |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | 2,990 | (2,990) |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 6,149 |  |  |
Net income available to Units - Limited Partners |  | 5,003 |  |  | 5,003 |  |  |
Units - Limited Partners distributions |  |  |  |  | (7,429) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | 821 |  |  |
Losses reclassified into earnings from other comprehensive income | 600 | 600 |  |  |  | 600 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | $ 0.675 |
Net income attributable to Noncontrolling Interests | $ 183,555 | $ 183,555 |  |  |  |  |  | 1,069
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 223
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (456)
Balance, end of period at Jun. 30, 2024 |  |  | $ 17,155 | $ 10,951,818 | $ 204,032 | $ 6,914 |  |
Balance, end of period at Jun. 30, 2024 |  |  |  |  |  |  |  | $ (295)

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