Who owns MAC (MAC)
Which tracked institutional funds hold MAC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MAC 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
78 tracked funds added or opened MAC while 49 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
MAC’s largest tracked holder by dollar value, BlackRock, 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 MAC more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MAC 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 309 tracked filers holding MAC, 172 increased or opened the position and 119 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 MAC 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 20
- VANGUARD PORTFOLIO MANAGEMENT LLC$483M
- VANGUARD CAPITAL MANAGEMENT LLC$217M
- VANGUARD FIDUCIARY TRUST CO$31M
- SCHRODER INVESTMENT MANAGEMENT GROUP$29M
- Heitman Real Estate Securities LLC$21M
- Adelante Capital Management LLC$8M
Full exits 13
- VANGUARD GROUP INC$702M
- GRS Advisors, LLC$33M
- Schonfeld Strategic Advisors LLC$16M
- AMERICAN CENTURY COMPANIES INC$14M
- VIRGINIA RETIREMENT SYSTEMS ET Al$10M
- APG Asset Management US Inc.$10M
Largest adds
- T. Rowe Price Investment Management, Inc.$90M
- FMR LLC$88M
- Resolution Capital Ltd$56M
- WELLINGTON MANAGEMENT GROUP LLP$25M
- BANK OF AMERICA CORP /DE/$23M
- CENTERSQUARE INVESTMENT MANAGEMENT LLC$20M
Largest trims
- JPMORGAN CHASE & CO$104M
- BlackRock, Inc.$94M
- CITADEL ADVISORS LLC$32M
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$31M
- Smead Capital Management, Inc.$28M
- Nuveen, LLC$23M
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 | 39,470,278 | $746M | 13.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 25,565,859 | $483M | 8.7% | 2026-Q1 |
| FMR LLC added | 23,971,983 | $453M | 8.2% | 2026-Q1 |
| STATE STREET CORP trimmed | 14,781,086 | $279M | 5.0% | 2026-Q1 |
| Smead Capital Management, Inc. trimmed | 12,155,332 | $230M | 4.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 11,472,606 | $217M | 3.9% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 7,904,430 | $146M | 2.6% | 2026-Q1 |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC added | 7,274,604 | $137M | 2.5% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 6,880,356 | $130M | 2.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 6,855,058 | $130M | 2.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 5,214,469 | $99M | 1.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 4,889,741 | $92M | 1.7% | 2026-Q1 |
| NORTHERN TRUST CORP added | 4,469,091 | $84M | 1.5% | 2026-Q1 |
| Resolution Capital Ltd added | 4,384,180 | $83M | 1.5% | 2026-Q1 |
| BAMCO INC /NY/ added | 4,084,693 | $77M | 1.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,848,113 | $73M | 1.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 3,469,964 | $66M | 1.2% | 2026-Q1 |
| PGGM Investments trimmed | 3,370,522 | $64M | 1.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 2,868,539 | $53M | 1.0% | 2026-Q1 |
| NORGES BANK trimmed | 3,086,819 | $53M | 1.0% | 2026-Q1 |
| Fisher Asset Management, LLC trimmed | 2,706,935 | $51M | 0.9% | 2026-Q1 |
| MORGAN STANLEY added | 2,607,737 | $49M | 0.9% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 2,604,585 | $49M | 0.9% | 2026-Q1 |
| FIL Ltd added | 2,523,354 | $48M | 0.9% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 2,240,478 | $42M | 0.8% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 2,143,722 | $41M | 0.7% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC trimmed | 2,114,016 | $40M | 0.7% | 2026-Q1 |
| LETKO, BROSSEAU & ASSOCIATES INC added | 1,881,745 | $36M | 0.6% | 2026-Q1 |
| UBS Group AG added | 1,820,781 | $34M | 0.6% | 2026-Q1 |
| Legal & General Group Plc trimmed | 1,675,465 | $32M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,656,803 | $31M | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 1,577,926 | $30M | 0.5% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 1,588,824 | $29M | 0.5% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 1,296,594 | $25M | 0.4% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 1,244,831 | $24M | 0.4% | 2026-Q1 |
| Nuveen, LLC trimmed | 1,195,082 | $23M | 0.4% | 2026-Q1 |
| Heitman Real Estate Securities LLC trimmed | 1,135,006 | $21M | 0.4% | 2026-Q1 |
| Public Sector Pension Investment Board added | 916,267 | $17M | 0.3% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 903,968 | $17M | 0.3% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 815,501 | $15M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 766,553 | $14M | 0.3% | 2026-Q1 |
| 1832 Asset Management L.P. added | 727,706 | $14M | 0.2% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 691,818 | $13M | 0.2% | 2026-Q1 |
| Triad Investment Management added | 620,748 | $12M | 0.2% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 628,960 | $12M | 0.2% | 2026-Q1 |
| Apollo Management Holdings, L.P. added | 609,640 | $12M | 0.2% | 2026-Q1 |
| Woodline Partners LP trimmed | 584,125 | $11M | 0.2% | 2026-Q1 |
| Invesco Ltd. trimmed | 574,769 | $11M | 0.2% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB added | 549,665 | $10M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 512,864 | $10M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 506,915 | $10M | 0.2% | 2026-Q1 |
| LPL Financial LLC trimmed | 499,358 | $9M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 449,770 | $8M | 0.1% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. added | 435,898 | $8M | 0.1% | 2026-Q1 |
| Adelante Capital Management LLC added | 430,485 | $8M | 0.1% | 2026-Q1 |
| DigitalBridge Group, Inc. trimmed | 423,000 | $8M | 0.1% | 2026-Q1 |
| STRS OHIO added | 409,600 | $8M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 402,600 | $8M | 0.1% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT CO LTD added | 394,900 | $7M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 386,810 | $7M | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO added | 363,148 | $7M | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 353,620 | $7M | 0.1% | 2026-Q1 |
| Asset Management One Co., Ltd. trimmed | 352,556 | $7M | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 352,235 | $7M | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 325,271 | $6M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 307,320 | $6M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 300,194 | $6M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 299,463 | $6M | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 297,627 | $6M | 0.1% | 2026-Q1 |
| Allianz Asset Management GmbH added | 295,229 | $6M | 0.1% | 2026-Q1 |
| State of Alaska, Department of Revenue trimmed | 268,689 | $5M | 0.1% | 2026-Q1 |
| GSI Capital Advisors LLC trimmed | 256,575 | $5M | 0.1% | 2026-Q1 |
| CI INVESTMENTS INC. added | 254,428 | $5M | 0.1% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC new | 251,150 | $5M | 0.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 244,263 | $5M | 0.1% | 2026-Q1 |
| Vanguard Investments Australia, Ltd. new | 232,238 | $4M | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 225,901 | $4M | 0.1% | 2026-Q1 |
| B&I Capital AG added | 224,232 | $4M | 0.1% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 209,674 | $4M | 0.1% | 2026-Q1 |
| Thrivent Financial for Lutherans trimmed | 204,274 | $4M | 0.1% | 2026-Q1 |
| Ilmarinen Mutual Pension Insurance Co | 203,500 | $4M | 0.1% | 2026-Q1 |
| Lighthouse Investment Partners, LLC added | 200,832 | $4M | 0.1% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 192,239 | $4M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 38,023,939 | $702M | 12.7% | 2025-Q4 stale |
| GRS Advisors, LLC added | 1,797,730 | $33M | 0.6% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC added | 890,043 | $16M | 0.3% | 2025-Q4 stale |
| AMERICAN CENTURY COMPANIES INC trimmed | 734,923 | $14M | 0.2% | 2025-Q4 stale |
| Point72 Asset Management, L.P. added | 715,883 | $13M | 0.2% | 2025-Q3 stale |
| VIRGINIA RETIREMENT SYSTEMS ET Al trimmed | 561,783 | $10M | 0.2% | 2025-Q4 stale |
| APG Asset Management US Inc. trimmed | 556,272 | $10M | 0.2% | 2025-Q4 stale |
| BROOKFIELD Corp /ON/ added | 549,691 | $10M | 0.2% | 2025-Q3 stale |
| American Assets Investment Management, LLC added | 574,712 | $10M | 0.2% | 2025-Q1 stale |
| AEW CAPITAL MANAGEMENT L P trimmed | 526,746 | $10M | 0.2% | 2025-Q3 stale |
| Burkehill Global Management, LP trimmed | 500,000 | $9M | 0.2% | 2025-Q1 stale |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 451,400 | $7M | 0.1% | 2025-Q2 stale |
| BOOTHBAY FUND MANAGEMENT, LLC added | 378,345 | $7M | 0.1% | 2025-Q4 stale |
| JANE STREET GROUP, LLC added | 322,066 | $6M | 0.1% | 2025-Q3 stale |
| Eisler Capital Management Ltd. new | 339,191 | $6M | 0.1% | 2025-Q2 stale |
| Edgestream Partners, L.P. trimmed | 291,980 | $5M | 0.1% | 2025-Q4 stale |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 202,587 | $4M | 0.1% | 2025-Q3 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.