Equity Residential

The full register, from 13F filings

The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 31-mar-2026, where 695 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.

Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.

What a reader needs to know to read these numbers

• MAJOR SUBSEQUENT EVENT, contradicts avalonbay.json's 'pending' status: the AvalonBay/Equity Residential merger CLOSED on 17 Aug 2026 (two days before this research, 19 Aug 2026), per Equity Residential's own 8-K filed that day (accession 0001140361-26-033377). avalonbay.json records this merger as PENDING with an expected 2.793 exchange ratio and 49%/51% pro forma split; EQR's own 8-K confirms the exchange ratio (2.793 EQR common shares per AvalonBay common share) matches exactly, so the two files AGREE on terms, but avalonbay.json's status field is now stale: the deal has closed, not pending. Mechanics per the 8-K: AvalonBay Communities, Inc. merged with and into Canopy Merger Sub LLC (Initial Merger), which survived as a direct wholly owned subsidiary of Equity Residential; Merger Sub then merged with and into ERP Operating Limited Partnership (Subsequent Merger), with ERPOP surviving. AvalonBay Communities, Inc. no longer exists as a separate public company or SEC registrant. In connection with the closing, the Company changed its name from Equity Residential to VIVMARK RESIDENTIAL, effective 17 Aug 2026 (Articles of Amendment filed with the Maryland State Department of Assessments and Taxation); the SEC's own company-facts/submissions API for CIK 0000906107 now returns the registrant name as 'VIVMARK RESIDENTIAL'. The ticker symbol is UNCHANGED: EQR still trades on the NYSE under the new corporate name. This file keeps company.name as 'Equity Residential' per the task's naming and to preserve the crosscheck link to avalonbay.json (which refers to its merger partner as 'Equity Residential'), but the current legal name of the registrant is Vivmark Residential. Note also that avalonbay.json's own notes dismissed a Yahoo Finance 'longName' of 'Vivmark Residential' as an apparent 'data artifact': that name was in fact CORRECT and prescient, evidently reflecting the merger name change ahead of avalonbay.json's own filing-based research catching up to the 17 Aug 2026 closing.
• The Company issued 'approximately 400 million' Company Common Shares to former AvalonBay stockholders in connection with the merger (per the 8-K), but no exact figure has yet been filed: the next 10-Q (for the quarter ending 30 Sep 2026) has not been filed as of this research (19 Aug 2026). shares_outstanding in this file (374,944,409) is therefore the LAST FILED cover-page figure, from the 30 Jun 2026 10-Q, dated 24 Jul 2026, and PREDATES the 17 Aug 2026 merger closing. It understates the company's true current share count by roughly half. A pro forma approximate post-merger share count is 374,944,409 + ~400,000,000 = ~774,944,409, not used in the shares_outstanding field because the 400 million figure is itself approximate and unfiled precisely; recorded here as an estimate for context only, per the brief's rule against writing an unsourced precise number into a structured field.
• market_cap_usd (23,868,961,077) is computed as the PRE-MERGER shares_outstanding (374,944,409, as of 24 Jul 2026) times a live-ish Yahoo Finance closing price of $63.66 (17 Aug 2026, the day the merger closed; Yahoo's own company name field for this quote still read 'Equity Residential', not yet updated to Vivmark Residential). This computed market cap is understated for the same reason as shares_outstanding: it excludes the ~400 million shares issued to former AvalonBay holders. An approximate pro forma market cap using the ~774.9 million approximate post-merger share count would be roughly $49.3 billion (774,944,409 x $63.66), disclosed here for context but not used as the structured market_cap_usd figure since the input share count is itself only approximate.
• Holdings side: EQR's 30 Jun 2026 10-Q (Note 5, 'Investments in Partially Owned Entities') reports a single combined 'Investments in Unconsolidated Entities' balance of $323,342 thousand ($323,342,000) as of 30 Jun 2026 (versus $325,939,000 at 31 Dec 2025), broken into FIVE CATEGORY BUCKETS, not named individual investees: 'Various Real Estate Holdings (VIE)' $34,262,000 (ownership 'Varies'); 'Operating Properties (VIE)' $110,977,000 (62%-80% ownership); 'Development and Lease-Up Projects and Land Held for Development (VIE)' $145,978,000 (95% ownership); 'Real Estate Technology Funds/Companies (VIE)' $31,922,000 (ownership 'Varies'); and 'Other' $203,000 (ownership 'Varies'). No individual joint venture, fund, or technology company is named anywhere in the 10-Q or the FY2025 10-K (which shows the same category structure with different dollar figures and ownership ranges, e.g. 'Development and Lease-Up Projects and Land Held for Development' at 62%-95% for FY2025). Searched 'Fifth Wall', 'venture capital fund', 'proptech', and 'technology fund': only the generic category label was found, no company or fund names. Per the brief's rule against assigning a combined balance to one investee, and because there is not even a single named investee to assign it to, NO holdings rows were created; holdings is an empty array and this is recorded as a genuine sourced negative, not a gap.
• Exhibit 21.1 (FY2025 10-K subsidiaries list, eqr-ex21.htm) was checked per the brief's suggested technique for an ownership-percentage column that might size the unconsolidated ventures. EQR's Exhibit 21 is a BARE NAME-AND-FORMATION-STATE LIST with no ownership percentage column at all (hundreds of entities, e.g. numerous 'Archstone' and property-specific LLC/LP names), so it could not be used to size or even positively identify which listed entities correspond to the unconsolidated joint ventures described in Note 5. Treated as a genuine negative per the brief.
• UPREIT structure checked per the brief's specific trap warning. Equity Residential (the REIT, CIK 0000906107, this file's subject) and ERP Operating Limited Partnership file a COMBINED 10-Q/10-K. As of 30 Jun 2026, EQR owned an approximate 97.6% general-partner interest in ERPOP; the remaining 2.4% is held by limited partners in OP Units, which are NOT common shares. shares_outstanding (374,944,409) is the REIT's own common-share cover-page figure ('The number of EQR Common Shares of Beneficial Interest, $0.01 par value, outstanding on July 24, 2026 was 374,944,409'), not the OP unit count, and every register row in this file is sourced to a 13F reporting CUSIP 29476L107 (Equity Residential common shares), never OP Units, so no shares-vs-units restatement was needed for any institutional row. The one place OP Units DO appear is the DEF 14A's trustee/executive ownership table, which mixes common shares, OP Units, and restricted units into a single 'Common Share Equivalents' figure not disaggregated by instrument; per the brief, that row's shares field is left null rather than populated with a mixed-instrument number (see the register row's own method_note for detail).
• T. Rowe Price: BOTH registrants named in the brief were checked. T. Rowe Price Associates, Inc. (CIK 0000080255) holds 17,760,257 shares as of Q2 2026; its information table reports value in THOUSANDS ($1,206,455 raw = $1,206,455,000 actual), caught and corrected here via the implied-price check (raw value/shares implied $0.068/share, off by exactly 1000x from the ~$67.93 modal price). T. Rowe Price Investment Management, Inc. (CIK 0001897612), the separate registrant the brief specifically warns about, was checked directly against its own Q2 2026 13F-HR information table (738 rows) and holds ZERO Equity Residential shares: no row recorded for it, per the brief's rule that a holder checked and found at zero is a note, not a null row.
• Cohen & Steers, Inc. (CIK 0001284812), the REIT-specialist manager the brief specifically flags, DOES hold Equity Residential. Its Q2 2026 13F-HR information table (filed 14 Aug 2026) reports 4,539,301 shares against a raw value of $308,355, which is VALUES IN THOUSANDS exactly as the brief warns: $308,355 thousand = $308,355,000 actual value, giving an implied price of ~$67.93/share, consistent with every other row in this register once corrected. At 4,539,301 shares (1.21% of the company), this position ranks just below the twelve rows included here (all at or above ~1.36%), so it is recorded in this note rather than as a register row, per the brief's guidance to report the top 8-12 holders plus anything strategic; it is not strategic at this size.
• JPMorgan Chase & Co (CIK 0000019617) was also checked and holds Equity Residential: Q2 2026 13F-HR, CUSIP 29476L107, summed across 15 reported lines, 3,133,026 shares, $214,111,022 (implied price ~$68.34/sh). At 0.84% of the company this also falls below the twelve rows included here and is recorded as a note rather than a row.
• Capital Group family: all eight registrants that file 13F-HR were checked directly against their own Q2 2026 (30 Jun 2026) information tables for CUSIP 29476L107 and hold NOTHING in Equity Residential: Capital International, Inc./CA/ (0000895213), Capital International Sarl (0001065349), Capital International Ltd/CA/ (0001065350), Capital Research Global Investors (0001422848), Capital World Investors (0001422849), Capital International Investors (0001562230), Capital Group Investment Management Pte. Ltd. (0001939970), Capital Group Private Client Services, Inc. (0001857666). The remaining three Capital Group registrants that this project's other files have found filing 13F-NT (Capital Research & Management Co 0000017283, Capital Group Companies Inc 0000732812, Capital Group International Inc 0000949308) were not individually re-verified this session given they carry no holdings by construction; not expected to change this genuine-negative finding. No row recorded for Capital Group anywhere in this register.
• Vanguard family sweep: this project's own data/registers/EQR.json (31 Mar 2026 snapshot, entity list only, per the brief) lists exactly the 7 successor entities summed in the Vanguard row above. Three further entities filing under the Vanguard name (Vanguard Advisers Inc 0000947529, Vanguard Marketing Corporation 0000217448, Vanguard National Trust Co 0001984256) were additionally checked directly against their own Q2 2026 13F-HR information tables and confirmed to hold ZERO Equity Residential shares, so the seven-entity sum used in the register row is complete as far as this sweep could determine.
• No SC 13D or SC 13G/A filed against Equity Residential (CIK 0000906107) more recently than 14 Nov 2024 was found in EDGAR's SC 13 filing history (checked via the EDGAR browse-edgar atom feed), so there is no fresher activist or strategic filing than the register sweep performed here; all figures used instead come from fresh Q2 2026 13F-HR filings, cross-checked in each row's method_note against the stale 13G figures quoted in the 2026 DEF 14A's principal-shareholders table (all as of dates between 31 Dec 2023 and 31 Oct 2025).
• Sam Zell (EQR's founder, died 2023) check: no trustee, executive, or named individual in the 2026 DEF 14A carries the Zell name or family connection; no Zell-affiliated SC 13D/13G was found in EDGAR's filing history for this CIK. See the Trustees and Executives register row's method_note for detail. Treated as a genuine negative per the brief's specific instruction to check the proxy properly rather than infer from holder_type.
• Self-gate computed from this final file on disk, following the chart's own arithmetic (members at full value, an aggregate reduced only by members that roll into it; here no register row rolls into another and the Trustees/Executives aggregate has shares: null so it contributes 0 to the sum, meaning every non-null row counts at full value): 13 register rows total, 234,073,966 total summed shares (Vanguard 58,362,352 + BlackRock 45,712,847 + Norges Bank 34,837,220 + State Street 23,774,847 + T. Rowe Price 17,760,257 + APG 10,856,563 + Geode 10,607,485 + First Eagle 9,529,108 + FMR/Fidelity 6,955,754 + Dimensional 5,384,176 + Invesco 5,211,680 + Northern Trust 5,081,677; Trustees/Executives aggregate excluded from the sum since its shares field is null), against shares_outstanding 374,944,409 = 62.43% of the company. This is ABOVE the brief's expected 25-45% band. Investigated rather than shipped blind: every one of the top 5 institutional rows (Vanguard 15.57%, BlackRock 12.19%, Norges Bank 9.29%, State Street 6.34%, T. Rowe Price 4.74%, summing to 48.13% alone) independently cross-checks in order of magnitude against the 2026 proxy's own stale 13G-sourced 5%-owner table, and nearly every one of the 13 rows implies a consistent ~$67.93-$68.63/share price (the T. Rowe Price and Cohen & Steers thousands-convention errors were specifically caught and corrected, ruling out that failure mode; no OP-unit or pre/post-split mismatch was found on any row, ruling out those failure modes too). Equity Residential, a large-cap ($23.9bn pre-merger, ~$49.3bn pro forma) apartment REIT with heavy passive/index and sovereign-fund ownership and no founder or dual-class block, is simply unusually concentrated among a small number of very large institutional holders, consistent with the same pattern independently found and investigated on AvalonBay (59.32%), its now-merged former merger partner and the closest comparable company in this database.