Who owns AM (AM)
Which tracked institutional funds hold AM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AM 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
208 tracked funds added or opened AM while 71 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
AM’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 AM more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AM 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 511 tracked filers holding AM, 275 increased or opened the position and 215 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 AM 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 31
- VANGUARD PORTFOLIO MANAGEMENT LLC$417M
- VANGUARD CAPITAL MANAGEMENT LLC$338M
- VANGUARD FIDUCIARY TRUST CO$47M
- Fiera Capital Corp$36M
- Covalis Capital LLP$22M
- HITE Hedge Asset Management LLC$17M
Full exits 32
- VANGUARD GROUP INC$633M
- SIR Capital Management, L.P.$32M
- Brandywine Global Investment Management, LLC$15M
- Long Focus Capital Management, LLC$11M
- Cinctive Capital Management LP$6M
- TUDOR INVESTMENT CORP ET AL$5M
Largest adds
- Invesco Ltd.$71M
- STATE STREET CORP$63M
- Bank of New York Mellon Corp$62M
- ALLIANCEBERNSTEIN L.P.$59M
- PRUDENTIAL FINANCIAL INC$59M
- TORTOISE CAPITAL ADVISORS, L.L.C.$52M
Largest trims
- Pacer Advisors, Inc.$41M
- UBS Group AG$24M
- Point72 Asset Management, L.P.$21M
- MILLER HOWARD INVESTMENTS INC /NY$9M
- Nuveen, LLC$6M
- M&T Bank Corp$5M
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 | 30,954,110 | $706M | 10.8% | 2026-Q1 |
| Invesco Ltd. trimmed | 21,401,749 | $488M | 7.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 18,299,973 | $417M | 6.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 14,809,259 | $338M | 5.2% | 2026-Q1 |
| STATE STREET CORP added | 11,593,199 | $264M | 4.0% | 2026-Q1 |
| TORTOISE CAPITAL ADVISORS, L.L.C. trimmed | 11,159,394 | $254M | 3.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 9,897,004 | $226M | 3.4% | 2026-Q1 |
| Bank of New York Mellon Corp added | 9,129,288 | $208M | 3.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 9,016,816 | $206M | 3.1% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 7,272,626 | $166M | 2.5% | 2026-Q1 |
| MORGAN STANLEY added | 6,255,526 | $143M | 2.2% | 2026-Q1 |
| KAYNE ANDERSON CAPITAL ADVISORS LP trimmed | 4,248,708 | $97M | 1.5% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 3,938,825 | $90M | 1.4% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 3,902,699 | $89M | 1.4% | 2026-Q1 |
| Clearbridge Investments, LLC added | 3,742,243 | $85M | 1.3% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 3,731,568 | $85M | 1.3% | 2026-Q1 |
| Boston Trust Walden Corp trimmed | 3,431,551 | $78M | 1.2% | 2026-Q1 |
| NORGES BANK added | 4,198,593 | $76M | 1.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 3,823,947 | $68M | 1.0% | 2026-Q1 |
| Blackstone Inc. added | 2,811,631 | $64M | 1.0% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 2,625,411 | $60M | 0.9% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 2,608,500 | $59M | 0.9% | 2026-Q1 |
| Clark Capital Management Group, Inc. added | 2,553,072 | $58M | 0.9% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC trimmed | 2,324,548 | $53M | 0.8% | 2026-Q1 |
| Orbis Allan Gray Ltd added | 2,262,431 | $52M | 0.8% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 2,259,307 | $52M | 0.8% | 2026-Q1 |
| Gotham Asset Management, LLC added | 2,166,904 | $49M | 0.8% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 2,057,950 | $47M | 0.7% | 2026-Q1 |
| BROOKFIELD Corp /ON/ trimmed | 1,935,500 | $44M | 0.7% | 2026-Q1 |
| Brave Warrior Advisors, LLC trimmed | 1,839,879 | $42M | 0.6% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 1,822,713 | $42M | 0.6% | 2026-Q1 |
| EAGLE GLOBAL ADVISORS LLC added | 1,791,773 | $41M | 0.6% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 1,623,102 | $37M | 0.6% | 2026-Q1 |
| Fiera Capital Corp new | 1,574,150 | $36M | 0.5% | 2026-Q1 |
| FMR LLC added | 1,553,598 | $35M | 0.5% | 2026-Q1 |
| RR Advisors, LLC trimmed | 1,513,610 | $35M | 0.5% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,459,589 | $34M | 0.5% | 2026-Q1 |
| BARCLAYS PLC added | 1,426,576 | $33M | 0.5% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 1,424,842 | $32M | 0.5% | 2026-Q1 |
| UBS Group AG trimmed | 1,360,890 | $31M | 0.5% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 1,349,901 | $31M | 0.5% | 2026-Q1 |
| CHICKASAW CAPITAL MANAGEMENT LLC trimmed | 1,347,581 | $31M | 0.5% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 1,255,328 | $29M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 1,248,618 | $28M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,207,784 | $28M | 0.4% | 2026-Q1 |
| MILLER HOWARD INVESTMENTS INC /NY trimmed | 1,138,874 | $26M | 0.4% | 2026-Q1 |
| ALPS ADVISORS INC trimmed | 1,083,901 | $25M | 0.4% | 2026-Q1 |
| JENNISON ASSOCIATES LLC added | 1,070,122 | $24M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 1,015,553 | $23M | 0.4% | 2026-Q1 |
| Covalis Capital LLP added | 985,162 | $22M | 0.3% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 982,242 | $22M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 930,601 | $21M | 0.3% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 880,776 | $20M | 0.3% | 2026-Q1 |
| Cetera Investment Advisers added | 867,200 | $20M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 863,526 | $20M | 0.3% | 2026-Q1 |
| EXCHANGE TRADED CONCEPTS, LLC added | 858,047 | $20M | 0.3% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 852,859 | $19M | 0.3% | 2026-Q1 |
| NEOS Investment Management LLC added | 788,835 | $18M | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 779,848 | $18M | 0.3% | 2026-Q1 |
| Columbus Macro, LLC added | 769,721 | $18M | 0.3% | 2026-Q1 |
| HITE Hedge Asset Management LLC added | 764,952 | $17M | 0.3% | 2026-Q1 |
| Thrivent Financial for Lutherans trimmed | 710,767 | $16M | 0.2% | 2026-Q1 |
| Swiss National Bank | 707,600 | $16M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 698,788 | $16M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 603,373 | $14M | 0.2% | 2026-Q1 |
| SHAH CAPITAL MANAGEMENT | 586,000 | $13M | 0.2% | 2026-Q1 |
| Pacer Advisors, Inc. trimmed | 96,110 | $13M | 0.2% | 2026-Q1 |
| LPL Financial LLC added | 565,926 | $13M | 0.2% | 2026-Q1 |
| Amundi trimmed | 550,311 | $13M | 0.2% | 2026-Q1 |
| Freestone Grove Partners LP added | 527,766 | $12M | 0.2% | 2026-Q1 |
| Nuveen, LLC trimmed | 505,000 | $12M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 483,698 | $11M | 0.2% | 2026-Q1 |
| Abacus FCF Advisors LLC added | 466,740 | $11M | 0.2% | 2026-Q1 |
| Waverly Advisors, LLC added | 457,330 | $10M | 0.2% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 437,926 | $10M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 437,144 | $10M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 426,913 | $10M | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 414,866 | $9M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 414,746 | $9M | 0.1% | 2026-Q1 |
| Retirement Systems of Alabama added | 405,980 | $9M | 0.1% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 401,759 | $9M | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 393,579 | $9M | 0.1% | 2026-Q1 |
| BI Asset Management Fondsmaeglerselskab A/S added | 373,838 | $9M | 0.1% | 2026-Q1 |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 365,994 | $8M | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 351,758 | $8M | 0.1% | 2026-Q1 |
| Ruffer LLP new | 350,360 | $8M | 0.1% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 350,674 | $8M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 340,683 | $8M | 0.1% | 2026-Q1 |
| Maryland State Retirement & Pension System trimmed | 313,421 | $7M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 299,263 | $7M | 0.1% | 2026-Q1 |
| HENNESSY ADVISORS INC trimmed | 296,910 | $7M | 0.1% | 2026-Q1 |
| Phocas Financial Corp. trimmed | 286,191 | $7M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 35,605,938 | $633M | 9.7% | 2025-Q4 stale |
| SIR Capital Management, L.P. added | 1,772,534 | $32M | 0.5% | 2025-Q4 stale |
| Brandywine Global Investment Management, LLC trimmed | 848,947 | $15M | 0.2% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC trimmed | 571,831 | $11M | 0.2% | 2025-Q3 stale |
| Long Focus Capital Management, LLC | 610,000 | $11M | 0.2% | 2025-Q4 stale |
| Ripple Effect Asset Management LP trimmed | 510,000 | $10M | 0.2% | 2025-Q3 stale |
| Trexquant Investment LP trimmed | 495,415 | $9M | 0.1% | 2025-Q2 stale |
| Corebridge Financial, Inc. trimmed | 371,502 | $7M | 0.1% | 2025-Q1 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.