Who owns MAA (MAA)
Which tracked institutional funds hold MAA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MAA 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
127 tracked funds added or opened MAA while 237 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
MAA’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 MAA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MAA 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 747 tracked filers holding MAA, 367 increased or opened the position and 389 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 MAA 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 40
- VANGUARD PORTFOLIO MANAGEMENT LLC$1.2B
- VANGUARD CAPITAL MANAGEMENT LLC$928M
- VANGUARD FIDUCIARY TRUST CO$80M
- Vanguard Global Advisers, LLC$31M
- VANGUARD ASSET MANAGEMENT, Ltd$25M
- Point72 Asset Management, L.P.$20M
Full exits 34
- VANGUARD GROUP INC$2.6B
- Alyeska Investment Group, L.P.$51M
- Hudson Bay Capital Management LP$35M
- Capital World Investors$32M
- Clarkston Capital Partners, LLC$29M
- Gillson Capital LP$21M
Largest adds
- NORGES BANK$146M
- JPMORGAN CHASE & CO$72M
- CENTERSQUARE INVESTMENT MANAGEMENT LLC$54M
- SG Americas Securities, LLC$51M
- VIKING GLOBAL INVESTORS LP$47M
- River Road Asset Management, LLC$44M
Largest trims
- BlackRock, Inc.$551M
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$164M
- STATE STREET CORP$145M
- CITADEL ADVISORS LLC$121M
- Nuveen, LLC$120M
- NORTHERN TRUST CORP$84M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 10,088,257 | $1.2B | 8.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 9,907,327 | $1.2B | 8.1% | 2026-Q1 |
| STATE STREET CORP trimmed | 8,004,531 | $978M | 6.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 7,595,270 | $928M | 6.2% | 2026-Q1 |
| NORGES BANK trimmed | 5,349,701 | $897M | 6.0% | 2026-Q1 |
| VIKING GLOBAL INVESTORS LP added | 4,798,404 | $586M | 3.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,496,589 | $426M | 2.8% | 2026-Q1 |
| APG Asset Management US Inc. added | 3,089,712 | $379M | 2.5% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 2,905,831 | $354M | 2.4% | 2026-Q1 |
| Invesco Ltd. added | 2,333,769 | $285M | 1.9% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,772,445 | $216M | 1.4% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 1,746,111 | $213M | 1.4% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 1,664,943 | $211M | 1.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,598,100 | $195M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,595,031 | $195M | 1.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,477,799 | $180M | 1.2% | 2026-Q1 |
| River Road Asset Management, LLC added | 1,428,079 | $174M | 1.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 1,407,691 | $172M | 1.1% | 2026-Q1 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC trimmed | 1,252,190 | $153M | 1.0% | 2026-Q1 |
| Legal & General Group Plc trimmed | 1,148,557 | $140M | 0.9% | 2026-Q1 |
| 1832 Asset Management L.P. added | 1,052,909 | $129M | 0.9% | 2026-Q1 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO trimmed | 849,743 | $104M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 841,563 | $103M | 0.7% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 777,177 | $95M | 0.6% | 2026-Q1 |
| UBS Group AG added | 690,447 | $84M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 657,925 | $80M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 645,729 | $79M | 0.5% | 2026-Q1 |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC added | 620,175 | $76M | 0.5% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 535,621 | $65M | 0.4% | 2026-Q1 |
| Amundi added | 517,233 | $63M | 0.4% | 2026-Q1 |
| SG Americas Securities, LLC added | 512,086 | $63M | 0.4% | 2026-Q1 |
| Quantinno Capital Management LP added | 503,350 | $61M | 0.4% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 423,540 | $59M | 0.4% | 2026-Q1 |
| TEACHER RETIREMENT SYSTEM OF TEXAS added | 444,253 | $54M | 0.4% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 439,822 | $54M | 0.4% | 2026-Q1 |
| CRAWFORD INVESTMENT COUNSEL INC added | 439,012 | $54M | 0.4% | 2026-Q1 |
| ANCHOR CAPITAL ADVISORS LLC added | 422,083 | $52M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 409,909 | $50M | 0.3% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 383,130 | $47M | 0.3% | 2026-Q1 |
| Gotham Asset Management, LLC added | 380,105 | $46M | 0.3% | 2026-Q1 |
| DIAMOND HILL CAPITAL MANAGEMENT INC trimmed | 371,994 | $45M | 0.3% | 2026-Q1 |
| State of Tennessee, Department of Treasury added | 367,083 | $45M | 0.3% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 365,359 | $45M | 0.3% | 2026-Q1 |
| Aberdeen Group plc added | 362,218 | $44M | 0.3% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC trimmed | 361,577 | $44M | 0.3% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 356,846 | $44M | 0.3% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 350,198 | $43M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 347,792 | $42M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 346,380 | $42M | 0.3% | 2026-Q1 |
| Swiss National Bank added | 343,576 | $42M | 0.3% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 320,772 | $39M | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 309,655 | $38M | 0.3% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 309,551 | $38M | 0.3% | 2026-Q1 |
| BARCLAYS PLC trimmed | 306,681 | $37M | 0.3% | 2026-Q1 |
| CITIGROUP INC added | 284,069 | $35M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 274,556 | $34M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 269,258 | $33M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 254,909 | $31M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 245,272 | $30M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 239,282 | $29M | 0.2% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 236,900 | $29M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 236,729 | $29M | 0.2% | 2026-Q1 |
| Quinn Opportunity Partners LLC | 233,500 | $29M | 0.2% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 229,322 | $28M | 0.2% | 2026-Q1 |
| Heitman Real Estate Securities LLC trimmed | 225,761 | $28M | 0.2% | 2026-Q1 |
| Asset Management One Co., Ltd. trimmed | 225,678 | $28M | 0.2% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT CO LTD added | 221,995 | $27M | 0.2% | 2026-Q1 |
| Starwood Capital Group Management, L.L.C. | 219,407 | $27M | 0.2% | 2026-Q1 |
| Perpetual Ltd added | 211,902 | $26M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 205,028 | $25M | 0.2% | 2026-Q1 |
| SNYDER CAPITAL MANAGEMENT L P trimmed | 189,684 | $23M | 0.2% | 2026-Q1 |
| Lighthouse Investment Partners, LLC added | 186,538 | $23M | 0.2% | 2026-Q1 |
| Investure, LLC added | 185,368 | $23M | 0.2% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 180,122 | $22M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 173,210 | $21M | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 173,037 | $21M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 168,913 | $21M | 0.1% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 168,206 | $21M | 0.1% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 167,087 | $20M | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 162,841 | $20M | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 158,619 | $19M | 0.1% | 2026-Q1 |
| Adelante Capital Management LLC added | 156,165 | $19M | 0.1% | 2026-Q1 |
| Allianz Asset Management GmbH added | 154,102 | $19M | 0.1% | 2026-Q1 |
| CIBC Asset Management Inc added | 149,061 | $18M | 0.1% | 2026-Q1 |
| CWM, LLC added | 147,122 | $18M | 0.1% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 145,019 | $18M | 0.1% | 2026-Q1 |
| Swedbank AB trimmed | 138,587 | $17M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 18,444,420 | $2.6B | 17.1% | 2025-Q4 stale |
| CANADA PENSION PLAN INVESTMENT BOARD | 1,060,363 | $178M | 1.2% | 2025-Q1 stale |
| Alyeska Investment Group, L.P. new | 366,351 | $51M | 0.3% | 2025-Q4 stale |
| Hudson Bay Capital Management LP added | 253,231 | $35M | 0.2% | 2025-Q4 stale |
| Capital World Investors trimmed | 229,144 | $32M | 0.2% | 2025-Q4 stale |
| Clarkston Capital Partners, LLC added | 210,480 | $29M | 0.2% | 2025-Q4 stale |
| Sabal Trust CO trimmed | 151,380 | $25M | 0.2% | 2025-Q1 stale |
| Gillson Capital LP added | 153,133 | $21M | 0.1% | 2025-Q4 stale |
| Nixon Capital, LLC new | 144,034 | $20M | 0.1% | 2025-Q4 stale |
| ALGEBRIS (UK) LTD added | 132,098 | $18M | 0.1% | 2025-Q4 stale |
| Capital International, Inc./CA/ added | 125,763 | $18M | 0.1% | 2025-Q3 stale |
| ExodusPoint Capital Management, LP added | 121,587 | $17M | 0.1% | 2025-Q3 stale |
| Andra AP-fonden trimmed | 121,000 | $17M | 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.