Who owns Astrana Health, Inc. (ASTH)
Which tracked institutional funds hold ASTH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ASTH company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
34 tracked funds added or opened ASTH while 35 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
ASTH’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 ASTH more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ASTH 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 171 tracked filers holding ASTH, 91 increased or opened the position and 86 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 ASTH 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 12
- VANGUARD PORTFOLIO MANAGEMENT LLC$56M
- VANGUARD CAPITAL MANAGEMENT LLC$42M
- 683 Capital Management, LLC$17M
- VANGUARD FIDUCIARY TRUST CO$7M
- Man Group plc$4M
- Emerald Investment Advisers, LLC$2M
Full exits 11
- VANGUARD GROUP INC$97M
- NorthCrest Asset Manangement, LLC$12M
- LAZARD ASSET MANAGEMENT LLC$2M
- F/m Investments LLC$2M
- TEACHER RETIREMENT SYSTEM OF TEXAS$875K
- SG Capital Management LLC$794K
Largest adds
- WELLINGTON MANAGEMENT GROUP LLP$13M
- DIMENSIONAL FUND ADVISORS LP$3M
- UBS Group AG$3M
- AMERIPRISE FINANCIAL INC$3M
- DIAMOND HILL CAPITAL MANAGEMENT INC$3M
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC$2M
Largest trims
- FMR LLC$16M
- MORGAN STANLEY$2M
- JACOBS LEVY EQUITY MANAGEMENT, INC$2M
- Shay Capital LLC$2M
- ExodusPoint Capital Management, LP$2M
- ROYAL BANK OF CANADA$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 | 6,163,727 | $151M | 17.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,276,806 | $56M | 6.4% | 2026-Q1 |
| 325 CAPITAL LLC | 1,839,076 | $45M | 5.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,710,262 | $42M | 4.8% | 2026-Q1 |
| STATE STREET CORP trimmed | 1,650,490 | $40M | 4.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,368,079 | $34M | 3.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 1,289,173 | $32M | 3.6% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,038,085 | $25M | 2.9% | 2026-Q1 |
| 683 Capital Management, LLC new | 700,000 | $17M | 2.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 644,171 | $16M | 1.8% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 574,729 | $14M | 1.6% | 2026-Q1 |
| SteelPeak Wealth, LLC trimmed | 559,937 | $14M | 1.6% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 551,599 | $14M | 1.5% | 2026-Q1 |
| DIAMOND HILL CAPITAL MANAGEMENT INC added | 544,034 | $13M | 1.5% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added | 481,520 | $12M | 1.4% | 2026-Q1 |
| NORTHERN TRUST CORP added | 438,163 | $11M | 1.2% | 2026-Q1 |
| FMR LLC trimmed | 415,895 | $10M | 1.2% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 396,961 | $10M | 1.1% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 386,424 | $9M | 1.1% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 351,630 | $9M | 1.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 338,803 | $8M | 1.0% | 2026-Q1 |
| Invesco Ltd. trimmed | 317,537 | $8M | 0.9% | 2026-Q1 |
| LPL Financial LLC | 309,125 | $8M | 0.9% | 2026-Q1 |
| UBS Group AG added | 301,926 | $7M | 0.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 295,329 | $7M | 0.8% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 293,003 | $7M | 0.8% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 265,948 | $7M | 0.7% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 221,842 | $5M | 0.6% | 2026-Q1 |
| EARNEST PARTNERS LLC added | 219,995 | $5M | 0.6% | 2026-Q1 |
| Public Sector Pension Investment Board added | 154,298 | $4M | 0.4% | 2026-Q1 |
| 1492 Capital Management LLC trimmed | 153,700 | $4M | 0.4% | 2026-Q1 |
| Man Group plc added | 153,378 | $4M | 0.4% | 2026-Q1 |
| Insight Wealth Strategies, LLC added | 143,291 | $4M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 138,387 | $3M | 0.4% | 2026-Q1 |
| SEI INVESTMENTS CO added | 134,899 | $3M | 0.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 104,546 | $3M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 102,999 | $3M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 100,614 | $2M | 0.3% | 2026-Q1 |
| Legal & General Group Plc trimmed | 99,086 | $2M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 94,727 | $2M | 0.3% | 2026-Q1 |
| Swiss National Bank | 88,444 | $2M | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 86,137 | $2M | 0.2% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 82,978 | $2M | 0.2% | 2026-Q1 |
| Westmount Partners, LLC trimmed | 77,755 | $2M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC added | 70,168 | $2M | 0.2% | 2026-Q1 |
| Emerald Investment Advisers, LLC new | 69,751 | $2M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 64,509 | $2M | 0.2% | 2026-Q1 |
| HUSSMAN STRATEGIC ADVISORS, INC. | 63,000 | $2M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 60,310 | $1M | 0.2% | 2026-Q1 |
| Linden Thomas Advisory Services, LLC added | 58,675 | $1M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 58,448 | $1M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 56,191 | $1M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 51,371 | $1M | 0.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 50,261 | $1M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 49,418 | $1M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 45,610 | $1M | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 45,603 | $1M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 43,930 | $1M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 42,259 | $1M | 0.1% | 2026-Q1 |
| Integrated Quantitative Investments LLC new | 42,208 | $1M | 0.1% | 2026-Q1 |
| Shay Capital LLC trimmed | 40,000 | $981K | 0.1% | 2026-Q1 |
| NATIXIS ADVISORS, LLC trimmed | 37,493 | $919K | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co | 35,479 | $871K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 35,067 | $860K | 0.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 34,087 | $836K | 0.1% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 32,912 | $807K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 32,868 | $806K | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 32,796 | $804K | 0.1% | 2026-Q1 |
| Janney Montgomery Scott LLC trimmed | 32,451 | $796K | 0.1% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 32,441 | $795K | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 32,161 | $789K | 0.1% | 2026-Q1 |
| BLAIR WILLIAM & CO/IL trimmed | 31,870 | $781K | 0.1% | 2026-Q1 |
| Savant Capital, LLC added | 31,676 | $777K | 0.1% | 2026-Q1 |
| CITIGROUP INC trimmed | 31,375 | $769K | 0.1% | 2026-Q1 |
| CREDIT AGRICOLE S A | 30,900 | $758K | 0.1% | 2026-Q1 |
| State of Alaska, Department of Revenue trimmed | 29,868 | $731K | 0.1% | 2026-Q1 |
| Thrivent Financial for Lutherans trimmed | 28,798 | $706K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 3,896,193 | $97M | 11.1% | 2025-Q4 stale |
| NorthCrest Asset Manangement, LLC added | 450,465 | $12M | 1.4% | 2025-Q4 stale |
| Atria Wealth Solutions, Inc. | 237,370 | $7M | 0.8% | 2025-Q1 stale |
| AXA Investment Managers S.A. new | 207,479 | $6M | 0.7% | 2025-Q3 stale |
| Pacer Advisors, Inc. new | 181,910 | $5M | 0.6% | 2025-Q3 stale |
| Bellevue Group AG trimmed | 163,155 | $5M | 0.6% | 2025-Q1 stale |
| Rhenman & Partners Asset Management AB added | 190,000 | $5M | 0.5% | 2025-Q2 stale |
| D. E. Shaw & Co., Inc. added | 145,556 | $4M | 0.5% | 2025-Q3 stale |
| AXA S.A. added | 126,614 | $3M | 0.4% | 2025-Q2 stale |
| E. Ohman J:or Asset Management AB added | 61,300 | $2M | 0.2% | 2025-Q1 stale |
| LAZARD ASSET MANAGEMENT LLC added | 74,285 | $2M | 0.2% | 2025-Q4 stale |
| F/m Investments LLC trimmed | 70,745 | $2M | 0.2% | 2025-Q4 stale |
| Quantbot Technologies LP added | 40,659 | $1M | 0.1% | 2025-Q3 stale |
| Allianz Asset Management GmbH added | 32,600 | $1M | 0.1% | 2025-Q1 stale |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 35,263 | $875K | 0.1% | 2025-Q4 stale |
| Premier Fund Managers Ltd | 27,243 | $833K | 0.1% | 2025-Q1 stale |
| D.A. DAVIDSON & CO. trimmed | 26,510 | $822K | 0.1% | 2025-Q1 stale |
| DARK FOREST CAPITAL MANAGEMENT LP added | 28,667 | $813K | 0.1% | 2025-Q3 stale |
| SG Capital Management LLC new | 32,020 | $794K | 0.1% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC trimmed | 27,876 | $790K | 0.1% | 2025-Q3 stale |
| TWO SIGMA INVESTMENTS, LP added | 30,713 | $762K | 0.1% | 2025-Q4 stale |
| VARCOV Co. new | 30,002 | $744K | 0.1% | 2025-Q4 stale |
| QSV Equity Investors LLC trimmed | 29,786 | $739K | 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.