Who owns AIV (AIV)
Which tracked institutional funds hold AIV, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AIV company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
33 tracked funds added or opened AIV while 66 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
AIV’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes AIV more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AIV divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 188 tracked filers holding AIV, 108 increased or opened the position and 135 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in AIV between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 14
- Madison Avenue Partners, LP$50M
- VANGUARD PORTFOLIO MANAGEMENT LLC$35M
- VANGUARD CAPITAL MANAGEMENT LLC$19M
- Owl Creek Asset Management, L.P.$12M
- Zimmer Partners, LP$8M
- 683 Capital Management, LLC$6M
Full exits 25
- VANGUARD GROUP INC$107M
- Silver Point Capital L.P.$44M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC$12M
- Argosy-Lionbridge Management, LLC$7M
- HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$5M
- Bank of New York Mellon Corp$4M
Largest adds
- Weiss Asset Management LP$26M
- JANE STREET GROUP, LLC$8M
- NORGES BANK$5M
- HRT FINANCIAL LP$5M
- SummitTX Capital, L.P.$3M
- Qube Research & Technologies Ltd$3M
Largest trims
- BlackRock, Inc.$74M
- PRICE T ROWE ASSOCIATES INC /MD/$33M
- STATE STREET CORP$32M
- GEODE CAPITAL MANAGEMENT, LLC$19M
- MORGAN STANLEY$13M
- Schonfeld Strategic Advisors LLC$9M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 17,156,764 | $70M | 8.3% | 2026-Q1 |
| Madison Avenue Partners, LP added | 12,374,991 | $50M | 6.0% | 2026-Q1 |
| Newtyn Management, LLC added | 12,200,000 | $50M | 5.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 8,595,664 | $35M | 4.1% | 2026-Q1 |
| Weiss Asset Management LP added | 8,150,456 | $33M | 3.9% | 2026-Q1 |
| Irenic Capital Management LP added | 5,029,521 | $20M | 2.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,691,383 | $19M | 2.3% | 2026-Q1 |
| Owl Creek Asset Management, L.P. new | 3,023,200 | $12M | 1.5% | 2026-Q1 |
| BlackRock, Inc. trimmed | 2,943,890 | $12M | 1.4% | 2026-Q1 |
| HRT FINANCIAL LP added | 2,678,415 | $11M | 1.3% | 2026-Q1 |
| LANDMARK INVESTMENT PARTNERS, L.P. added | 2,556,176 | $10M | 1.2% | 2026-Q1 |
| THOMPSON SIEGEL & WALMSLEY LLC added | 2,365,568 | $10M | 1.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 2,095,214 | $9M | 1.0% | 2026-Q1 |
| Zimmer Partners, LP added | 2,027,500 | $8M | 1.0% | 2026-Q1 |
| SummitTX Capital, L.P. added | 2,010,275 | $8M | 1.0% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 1,768,028 | $7M | 0.9% | 2026-Q1 |
| Verition Fund Management LLC added | 1,676,686 | $7M | 0.8% | 2026-Q1 |
| Western Standard LLC trimmed | 1,626,624 | $7M | 0.8% | 2026-Q1 |
| NORGES BANK added | 706,680 | $6M | 0.7% | 2026-Q1 |
| 683 Capital Management, LLC new | 1,450,000 | $6M | 0.7% | 2026-Q1 |
| DLD Asset Management, LP added | 1,070,978 | $4M | 0.5% | 2026-Q1 |
| Meros Investment Management, LP trimmed | 968,124 | $4M | 0.5% | 2026-Q1 |
| Union Square Park Capital Management, LLC | 650,000 | $4M | 0.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 930,774 | $4M | 0.4% | 2026-Q1 |
| UBS Group AG added | 858,469 | $3M | 0.4% | 2026-Q1 |
| Alberta Investment Management Corp new | 850,000 | $3M | 0.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 804,884 | $3M | 0.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 792,060 | $3M | 0.4% | 2026-Q1 |
| Greenland Capital Management LP added | 665,200 | $3M | 0.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 607,610 | $2M | 0.3% | 2026-Q1 |
| OP Asset Management Ltd new | 505,237 | $2M | 0.3% | 2026-Q1 |
| LMR Partners LLP trimmed | 561,125 | $2M | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 550,402 | $2M | 0.3% | 2026-Q1 |
| STATE STREET CORP trimmed | 536,065 | $2M | 0.3% | 2026-Q1 |
| LPL Financial LLC added | 512,331 | $2M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 510,254 | $2M | 0.2% | 2026-Q1 |
| Beverly Hills Private Wealth, LLC added | 497,058 | $2M | 0.2% | 2026-Q1 |
| Quinn Opportunity Partners LLC | 494,935 | $2M | 0.2% | 2026-Q1 |
| Northern Right Capital Management, L.P. added | 479,342 | $2M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL trimmed | 456,343 | $2M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 463,618 | $2M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 450,452 | $2M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 440,658 | $2M | 0.2% | 2026-Q1 |
| Bleakley Financial Group, LLC added | 425,017 | $2M | 0.2% | 2026-Q1 |
| GABELLI FUNDS LLC added | 421,799 | $2M | 0.2% | 2026-Q1 |
| CANTOR FITZGERALD, L. P. added | 400,000 | $2M | 0.2% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 395,569 | $2M | 0.2% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. new | 379,450 | $2M | 0.2% | 2026-Q1 |
| Man Group plc added | 347,348 | $1M | 0.2% | 2026-Q1 |
| Yakira Capital Management, Inc. added | 345,657 | $1M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC added | 339,207 | $1M | 0.2% | 2026-Q1 |
| XTX Topco Ltd added | 338,655 | $1M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 336,824 | $1M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 327,191 | $1M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 299,647 | $1M | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 276,774 | $1M | 0.1% | 2026-Q1 |
| Swiss National Bank | 266,484 | $1M | 0.1% | 2026-Q1 |
| Brooklyn Investment Group added | 242,816 | $988K | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 211,981 | $863K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 203,746 | $829K | 0.1% | 2026-Q1 |
| Alpine Global Management, LLC added | 200,000 | $814K | 0.1% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 197,234 | $803K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 17,989,489 | $107M | 12.7% | 2025-Q4 stale |
| Silver Point Capital L.P. new | 7,406,522 | $44M | 5.2% | 2025-Q4 stale |
| RUSH ISLAND MANAGEMENT, LP | 4,779,357 | $41M | 4.9% | 2025-Q2 stale |
| Land & Buildings Investment Management, LLC added | 3,142,232 | $28M | 3.3% | 2025-Q1 stale |
| T. Rowe Price Investment Management, Inc. trimmed | 2,651,697 | $23M | 2.7% | 2025-Q2 stale |
| Long Pond Capital, LP trimmed | 1,697,757 | $15M | 1.7% | 2025-Q2 stale |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,001,362 | $12M | 1.4% | 2025-Q4 stale |
| RENAISSANCE TECHNOLOGIES LLC added | 1,201,640 | $10M | 1.1% | 2025-Q3 stale |
| Aryeh Capital Management Ltd. added | 926,146 | $8M | 0.9% | 2025-Q2 stale |
| Uniplan Investment Counsel, Inc. trimmed | 863,430 | $7M | 0.9% | 2025-Q2 stale |
| DigitalBridge Group, Inc. trimmed | 1,044,753 | $7M | 0.8% | 2025-Q2 stale |
| Argosy-Lionbridge Management, LLC trimmed | 1,137,063 | $7M | 0.8% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 920,300 | $5M | 0.6% | 2025-Q4 stale |
| Vision Capital Corp added | 624,036 | $5M | 0.6% | 2025-Q2 stale |
| Bank of New York Mellon Corp added | 723,920 | $4M | 0.5% | 2025-Q4 stale |
| Anson Funds Management LP added | 415,208 | $4M | 0.4% | 2025-Q2 stale |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 584,121 | $3M | 0.4% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 373,398 | $3M | 0.4% | 2025-Q3 stale |
| Alpha Wave Global, LP added | 323,578 | $3M | 0.3% | 2025-Q2 stale |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | 313,214 | $3M | 0.3% | 2025-Q1 stale |
| Nuveen, LLC trimmed | 462,476 | $3M | 0.3% | 2025-Q4 stale |
| J. Goldman & Co LP trimmed | 343,088 | $3M | 0.3% | 2025-Q3 stale |
| VIRGINIA RETIREMENT SYSTEMS ET Al added | 308,000 | $3M | 0.3% | 2025-Q2 stale |
| Ursa Fund Management, LLC trimmed | 423,600 | $3M | 0.3% | 2025-Q4 stale |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 250,000 | $2M | 0.3% | 2025-Q2 stale |
| D. E. Shaw & Co., Inc. trimmed | 327,168 | $2M | 0.2% | 2025-Q4 stale |
| ExodusPoint Capital Management, LP added | 252,553 | $2M | 0.2% | 2025-Q4 stale |
| Centiva Capital, LP added | 250,000 | $1M | 0.2% | 2025-Q4 stale |
| SAYBROOK CAPITAL /NC | 183,500 | $1M | 0.2% | 2025-Q3 stale |
| PEAK6 LLC added | 197,032 | $1M | 0.1% | 2025-Q4 stale |
| NOMURA ASSET MANAGEMENT CO LTD | 193,200 | $1M | 0.1% | 2025-Q4 stale |
| Asset Management One Co., Ltd. trimmed | 180,890 | $1M | 0.1% | 2025-Q4 stale |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 180,875 | $1M | 0.1% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP trimmed | 122,300 | $1M | 0.1% | 2025-Q2 stale |
| MARSHALL WACE, LLP added | 173,953 | $1M | 0.1% | 2025-Q4 stale |
| PRUDENTIAL FINANCIAL INC trimmed | 122,838 | $974K | 0.1% | 2025-Q3 stale |
| ALLIANCEBERNSTEIN L.P. added | 163,983 | $974K | 0.1% | 2025-Q4 stale |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 150,328 | $893K | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.