Who owns AMN (AMN)
Which tracked institutional funds hold AMN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AMN 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
The tracked-fund tape on AMN is one-sided between 2025-Q4 and 2026-Q1: 91 added or opened and 30 trimmed or exited — on balance accumulating.
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
AMN’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 AMN more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AMN 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 250 tracked filers holding AMN, 162 increased or opened the position and 103 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 AMN 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 19
- VANGUARD CAPITAL MANAGEMENT LLC$31M
- VANGUARD PORTFOLIO MANAGEMENT LLC$21M
- Medina Value Partners, LLC$10M
- NORGES BANK$7M
- VANGUARD FIDUCIARY TRUST CO$5M
- BURNEY CO/$4M
Full exits 18
- VANGUARD GROUP INC$52M
- TWO SIGMA ADVISERS, LP$8M
- Freestone Grove Partners LP$7M
- Point72 Asset Management, L.P.$6M
- JANE STREET GROUP, LLC$6M
- Zweig-DiMenna Associates LLC$4M
Largest adds
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$24M
- Boston Partners$23M
- BlackRock, Inc.$17M
- TWO SIGMA INVESTMENTS, LP$16M
- ROYCE & ASSOCIATES LP$11M
- RENAISSANCE TECHNOLOGIES LLC$11M
Largest trims
- MILLENNIUM MANAGEMENT LLC$13M
- D. E. Shaw & Co., Inc.$10M
- Pacer Advisors, Inc.$8M
- FEDERATED HERMES, INC.$3M
- HRT FINANCIAL LP$3M
- WELLS FARGO & COMPANY/MN$2M
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. added | 6,023,495 | $110M | 12.0% | 2026-Q1 |
| Boston Partners added | 2,138,388 | $39M | 4.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,677,426 | $31M | 3.3% | 2026-Q1 |
| STATE STREET CORP trimmed | 1,614,404 | $30M | 3.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,587,681 | $29M | 3.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 1,401,725 | $26M | 2.8% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,376,341 | $25M | 2.7% | 2026-Q1 |
| MORGAN STANLEY added | 1,340,675 | $25M | 2.7% | 2026-Q1 |
| Allianz Asset Management GmbH added | 1,261,004 | $23M | 2.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,124,669 | $21M | 2.2% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 1,008,987 | $19M | 2.0% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 997,328 | $18M | 2.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 924,110 | $17M | 1.8% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 871,038 | $16M | 1.7% | 2026-Q1 |
| UBS Group AG added | 867,976 | $16M | 1.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 844,646 | $15M | 1.7% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 741,209 | $14M | 1.5% | 2026-Q1 |
| GRIZZLYROCK CAPITAL, LLC added | 725,019 | $13M | 1.4% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 695,352 | $13M | 1.4% | 2026-Q1 |
| Tributary Capital Management, LLC added | 598,497 | $11M | 1.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 587,369 | $11M | 1.2% | 2026-Q1 |
| FEDERATED HERMES, INC. trimmed | 566,170 | $10M | 1.1% | 2026-Q1 |
| Medina Value Partners, LLC new | 546,257 | $10M | 1.1% | 2026-Q1 |
| CenterBook Partners LP added | 515,654 | $9M | 1.0% | 2026-Q1 |
| THOMPSON INVESTMENT MANAGEMENT, INC. added | 457,020 | $8M | 0.9% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 422,178 | $8M | 0.9% | 2026-Q1 |
| NORTHERN TRUST CORP added | 413,652 | $8M | 0.8% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 378,564 | $7M | 0.8% | 2026-Q1 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP added | 372,464 | $7M | 0.7% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 370,500 | $7M | 0.7% | 2026-Q1 |
| Invesco Ltd. trimmed | 365,608 | $7M | 0.7% | 2026-Q1 |
| NORGES BANK added | 267,700 | $7M | 0.7% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 317,479 | $6M | 0.6% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 302,174 | $6M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 298,675 | $5M | 0.6% | 2026-Q1 |
| FMR LLC added | 295,855 | $5M | 0.6% | 2026-Q1 |
| Walleye Capital LLC added | 279,702 | $5M | 0.6% | 2026-Q1 |
| Counterpoint Mutual Funds LLC added | 275,995 | $5M | 0.5% | 2026-Q1 |
| Empowered Funds, LLC added | 268,007 | $5M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 260,349 | $5M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 251,006 | $5M | 0.5% | 2026-Q1 |
| Trexquant Investment LP added | 232,461 | $4M | 0.5% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 228,740 | $4M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 227,840 | $4M | 0.5% | 2026-Q1 |
| BURNEY CO/ added | 226,412 | $4M | 0.4% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 208,651 | $4M | 0.4% | 2026-Q1 |
| MONIMUS CAPITAL MANAGEMENT, LP added | 193,907 | $4M | 0.4% | 2026-Q1 |
| Engineers Gate Manager LP added | 180,470 | $3M | 0.4% | 2026-Q1 |
| Public Sector Pension Investment Board added | 176,597 | $3M | 0.4% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 157,642 | $3M | 0.3% | 2026-Q1 |
| Pacer Advisors, Inc. trimmed | 25,395 | $3M | 0.3% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 151,385 | $3M | 0.3% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL trimmed | 145,087 | $3M | 0.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 153,338 | $2M | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 127,879 | $2M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 122,110 | $2M | 0.2% | 2026-Q1 |
| Jump Financial, LLC added | 120,914 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 113,340 | $2M | 0.2% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC added | 110,735 | $2M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 110,760 | $2M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 109,033 | $2M | 0.2% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 108,460 | $2M | 0.2% | 2026-Q1 |
| Taproot Management LP added | 105,167 | $2M | 0.2% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 102,291 | $2M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 89,807 | $2M | 0.2% | 2026-Q1 |
| FIRST NATIONAL BANK OF OMAHA added | 87,679 | $2M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Trust & Banking Corp added | 87,306 | $2M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 87,340 | $2M | 0.2% | 2026-Q1 |
| DBA TRADING, LLC added | 87,000 | $2M | 0.2% | 2026-Q1 |
| Cambridge Investment Research Advisors, Inc. added | 86,308 | $2M | 0.2% | 2026-Q1 |
| CAPITAL FUND MANAGEMENT S.A. added | 85,603 | $2M | 0.2% | 2026-Q1 |
| VARCOV Co. added | 82,659 | $2M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 81,844 | $2M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 81,253 | $1M | 0.2% | 2026-Q1 |
| READYSTATE ASSET MANAGEMENT LP added | 79,115 | $1M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 3,300,718 | $52M | 5.6% | 2025-Q4 stale |
| Woodline Partners LP added | 990,514 | $19M | 2.1% | 2025-Q3 stale |
| REINHART PARTNERS, LLC. added | 744,943 | $18M | 2.0% | 2025-Q1 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 454,125 | $11M | 1.2% | 2025-Q1 stale |
| Invenomic Capital Management LP trimmed | 401,248 | $10M | 1.1% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 503,900 | $8M | 0.9% | 2025-Q4 stale |
| Freestone Grove Partners LP added | 473,381 | $7M | 0.8% | 2025-Q4 stale |
| Point72 Asset Management, L.P. trimmed | 408,932 | $6M | 0.7% | 2025-Q4 stale |
| Kent Lake PR LLC new | 250,000 | $6M | 0.7% | 2025-Q1 stale |
| Newtyn Management, LLC trimmed | 287,038 | $6M | 0.6% | 2025-Q2 stale |
| JANE STREET GROUP, LLC trimmed | 354,882 | $6M | 0.6% | 2025-Q4 stale |
| FIRST TRUST ADVISORS LP added | 177,184 | $4M | 0.5% | 2025-Q1 stale |
| Pier Capital, LLC added | 162,062 | $4M | 0.4% | 2025-Q1 stale |
| Cubist Systematic Strategies, LLC added | 186,716 | $4M | 0.4% | 2025-Q3 stale |
| Zweig-DiMenna Associates LLC | 223,241 | $4M | 0.4% | 2025-Q4 stale |
| Empyrean Capital Partners, LP new | 150,000 | $3M | 0.3% | 2025-Q3 stale |
| Qube Research & Technologies Ltd trimmed | 147,808 | $2M | 0.3% | 2025-Q4 stale |
| Virtus Family Office LLC trimmed | 88,166 | $2M | 0.2% | 2025-Q1 stale |
| MARSHALL WACE, LLP trimmed | 131,042 | $2M | 0.2% | 2025-Q4 stale |
| NEW SOUTH CAPITAL MANAGEMENT INC trimmed | 128,716 | $2M | 0.2% | 2025-Q4 stale |
| TWINBEECH CAPITAL LP trimmed | 81,371 | $2M | 0.2% | 2025-Q1 stale |
| Allianz SE | 71,367 | $2M | 0.2% | 2025-Q1 stale |
| Susquehanna Portfolio Strategies, LLC added | 85,461 | $2M | 0.2% | 2025-Q3 stale |
| Lighthouse Investment Partners, LLC trimmed | 103,755 | $2M | 0.2% | 2025-Q4 stale |
| Swedbank AB | 99,500 | $2M | 0.2% | 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.