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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, 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 |  |  |  | 254 | (254) |  |  |
Exercise of EQR share options |  |  |  | 4,401 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 1,644 |  |  |  |
EQR restricted shares |  |  |  | 4,496 | 2 |  |  |
EQR share options |  |  |  | 1,289 |  |  |  |
EQR ESPP discount |  |  |  | 296 |  |  |  |
OP Units repurchased and retired |  |  |  | (38,474) |  |  |  |
Net income available to Units - General Partner |  | $ 293,796 |  | 293,796 |  |  |  |
OP Units - General Partner distributions |  |  |  | (255,843) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | (227) |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | (8,815) |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | (1,458) | 1,458 |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 4,087 |  |  |
Net income available to Units - Limited Partners |  | 8,275 |  |  | 8,275 |  |  |
Units - Limited Partners distributions |  |  |  |  | (8,446) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | (156) |  |  |
Unrealized holding gains (losses) arising during the period | $ 0 |  |  |  |  |  |  |
Losses reclassified into earnings from other comprehensive income | 610 | 610 |  |  |  | 610 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | $ 0.675 |
Net income attributable to Noncontrolling Interests | 305,032 | 305,032 |  |  |  |  |  | 970
Contributions by Noncontrolling Interests |  |  |  |  |  |  |  | 235
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (2,330)
Other |  |  |  |  |  |  |  | (1,000)
Balance, end of period at Mar. 31, 2024 |  |  | 17,155 | 11,044,203 | 207,272 | 6,314 |  |
Balance, end of period at Mar. 31, 2024 |  |  |  |  |  |  |  | (1,131)
Balance, beginning of year at Dec. 31, 2024 |  |  | 17,155 | 11,023,191 | 201,942 | 4,214 |  |
Balance, beginning of year at Dec. 31, 2024 |  |  |  |  |  |  |  | (718)
Conversion of OP Units held by Limited Partners into OP Units held by General Partner |  |  |  | 4,407 | (4,407) |  |  |
Exercise of EQR share options |  |  |  | 4,360 |  |  |  |
EQR's Employee Share Purchase Plan (ESPP) |  |  |  | 942 |  |  |  |
EQR restricted shares |  |  |  | 4,438 | 4 |  |  |
EQR share options |  |  |  | 1,279 |  |  |  |
EQR ESPP discount |  |  |  | 194 |  |  |  |
Net income available to Units - General Partner |  | 256,236 |  | 256,236 |  |  |  |
OP Units - General Partner distributions |  |  |  | (263,295) |  |  |  |
Supplemental Executive Retirement Plan (SERP) |  |  |  | 111 |  |  |  |
Change in market value of Redeemable Limited Partners |  |  |  | 755 |  |  |  |
Adjustment for Limited Partners ownership in Operating Partnership |  |  |  | (5,839) | 5,839 |  |  |
Equity compensation associated with Units - Limited Partners |  |  |  |  | 5,101 |  |  |
Net income available to Units - Limited Partners |  | 7,102 |  |  | 7,102 |  |  |
Units - Limited Partners distributions |  |  |  |  | (8,600) |  |  |
Change in carrying value of Redeemable Limited Partners |  |  |  |  | 109 |  |  |
Unrealized holding gains (losses) arising during the period | (1,504) | (1,504) |  |  |  | (1,504) |  |
Losses reclassified into earnings from other comprehensive income | 686 | 686 |  |  |  | 686 |  |
Distributions declared per Unit outstanding |  |  |  |  |  |  | $ 0.6925 |
Net income attributable to Noncontrolling Interests | $ 264,798 | $ 264,798 |  |  |  |  |  | 1,104
Distributions to Noncontrolling Interests |  |  |  |  |  |  |  | (3,375)
Balance, end of period at Mar. 31, 2025 |  |  | $ 17,155 | $ 11,026,779 | $ 207,090 | $ 3,396 |  | $ (2,989)

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