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Institutional Ownership · SEC Form 13F

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.

171
Institutional holders
30M
Shares held (tracked funds)
61.0%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. added6,163,727$151M17.3%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new2,276,806$56M6.4%2026-Q1
325 CAPITAL LLC1,839,076$45M5.2%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new1,710,262$42M4.8%2026-Q1
STATE STREET CORP trimmed1,650,490$40M4.6%2026-Q1
DIMENSIONAL FUND ADVISORS LP added1,368,079$34M3.8%2026-Q1
WELLINGTON MANAGEMENT GROUP LLP added1,289,173$32M3.6%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added1,038,085$25M2.9%2026-Q1
683 Capital Management, LLC new700,000$17M2.0%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added644,171$16M1.8%2026-Q1
BANK OF AMERICA CORP /DE/ added574,729$14M1.6%2026-Q1
SteelPeak Wealth, LLC trimmed559,937$14M1.6%2026-Q1
AMERIPRISE FINANCIAL INC added551,599$14M1.5%2026-Q1
DIAMOND HILL CAPITAL MANAGEMENT INC added544,034$13M1.5%2026-Q1
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added481,520$12M1.4%2026-Q1
NORTHERN TRUST CORP added438,163$11M1.2%2026-Q1
FMR LLC trimmed415,895$10M1.2%2026-Q1
ROYCE & ASSOCIATES LP added396,961$10M1.1%2026-Q1
JACOBS LEVY EQUITY MANAGEMENT, INC trimmed386,424$9M1.1%2026-Q1
BNP PARIBAS ASSET MANAGEMENT Holding S.A. added351,630$9M1.0%2026-Q1
MORGAN STANLEY trimmed338,803$8M1.0%2026-Q1
Invesco Ltd. trimmed317,537$8M0.9%2026-Q1
LPL Financial LLC309,125$8M0.9%2026-Q1
UBS Group AG added301,926$7M0.8%2026-Q1
GOLDMAN SACHS GROUP INC trimmed295,329$7M0.8%2026-Q1
VANGUARD FIDUCIARY TRUST CO new293,003$7M0.8%2026-Q1
PRINCIPAL FINANCIAL GROUP INC added265,948$7M0.7%2026-Q1
Bank of New York Mellon Corp trimmed221,842$5M0.6%2026-Q1
EARNEST PARTNERS LLC added219,995$5M0.6%2026-Q1
Public Sector Pension Investment Board added154,298$4M0.4%2026-Q1
1492 Capital Management LLC trimmed153,700$4M0.4%2026-Q1
Man Group plc added153,378$4M0.4%2026-Q1
Insight Wealth Strategies, LLC added143,291$4M0.4%2026-Q1
ENVESTNET ASSET MANAGEMENT INC added138,387$3M0.4%2026-Q1
SEI INVESTMENTS CO added134,899$3M0.4%2026-Q1
RENAISSANCE TECHNOLOGIES LLC added104,546$3M0.3%2026-Q1
WELLS FARGO & COMPANY/MN trimmed102,999$3M0.3%2026-Q1
RHUMBLINE ADVISERS added100,614$2M0.3%2026-Q1
Legal & General Group Plc trimmed99,086$2M0.3%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added94,727$2M0.3%2026-Q1
Swiss National Bank88,444$2M0.2%2026-Q1
Nuveen, LLC added86,137$2M0.2%2026-Q1
STATE OF WISCONSIN INVESTMENT BOARD added82,978$2M0.2%2026-Q1
Westmount Partners, LLC trimmed77,755$2M0.2%2026-Q1
Squarepoint Ops LLC added70,168$2M0.2%2026-Q1
Emerald Investment Advisers, LLC new69,751$2M0.2%2026-Q1
Quantinno Capital Management LP added64,509$2M0.2%2026-Q1
HUSSMAN STRATEGIC ADVISORS, INC.63,000$2M0.2%2026-Q1
ALLIANCEBERNSTEIN L.P. added60,310$1M0.2%2026-Q1
Linden Thomas Advisory Services, LLC added58,675$1M0.2%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. trimmed58,448$1M0.2%2026-Q1
JPMORGAN CHASE & CO added56,191$1M0.2%2026-Q1
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added51,371$1M0.1%2026-Q1
VICTORY CAPITAL MANAGEMENT INC added50,261$1M0.1%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ added49,418$1M0.1%2026-Q1
DEUTSCHE BANK AG\ added45,610$1M0.1%2026-Q1
AMERICAN CENTURY COMPANIES INC added45,603$1M0.1%2026-Q1
PRUDENTIAL FINANCIAL INC added43,930$1M0.1%2026-Q1
NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed42,259$1M0.1%2026-Q1
Integrated Quantitative Investments LLC new42,208$1M0.1%2026-Q1
Shay Capital LLC trimmed40,000$981K0.1%2026-Q1
NATIXIS ADVISORS, LLC trimmed37,493$919K0.1%2026-Q1
CANADA LIFE ASSURANCE Co35,479$871K0.1%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed35,067$860K0.1%2026-Q1
AQR CAPITAL MANAGEMENT LLC added34,087$836K0.1%2026-Q1
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed32,912$807K0.1%2026-Q1
JANE STREET GROUP, LLC trimmed32,868$806K0.1%2026-Q1
Russell Investments Group, Ltd. trimmed32,796$804K0.1%2026-Q1
Janney Montgomery Scott LLC trimmed32,451$796K0.1%2026-Q1
VANGUARD ASSET MANAGEMENT, Ltd new32,441$795K0.1%2026-Q1
FIRST TRUST ADVISORS LP added32,161$789K0.1%2026-Q1
BLAIR WILLIAM & CO/IL trimmed31,870$781K0.1%2026-Q1
Savant Capital, LLC added31,676$777K0.1%2026-Q1
CITIGROUP INC trimmed31,375$769K0.1%2026-Q1
CREDIT AGRICOLE S A30,900$758K0.1%2026-Q1
State of Alaska, Department of Revenue trimmed29,868$731K0.1%2026-Q1
Thrivent Financial for Lutherans trimmed28,798$706K0.1%2026-Q1
VANGUARD GROUP INC trimmed3,896,193$97M11.1%2025-Q4 stale
NorthCrest Asset Manangement, LLC added450,465$12M1.4%2025-Q4 stale
Atria Wealth Solutions, Inc.237,370$7M0.8%2025-Q1 stale
AXA Investment Managers S.A. new207,479$6M0.7%2025-Q3 stale
Pacer Advisors, Inc. new181,910$5M0.6%2025-Q3 stale
Bellevue Group AG trimmed163,155$5M0.6%2025-Q1 stale
Rhenman & Partners Asset Management AB added190,000$5M0.5%2025-Q2 stale
D. E. Shaw & Co., Inc. added145,556$4M0.5%2025-Q3 stale
AXA S.A. added126,614$3M0.4%2025-Q2 stale
E. Ohman J:or Asset Management AB added61,300$2M0.2%2025-Q1 stale
LAZARD ASSET MANAGEMENT LLC added74,285$2M0.2%2025-Q4 stale
F/m Investments LLC trimmed70,745$2M0.2%2025-Q4 stale
Quantbot Technologies LP added40,659$1M0.1%2025-Q3 stale
Allianz Asset Management GmbH added32,600$1M0.1%2025-Q1 stale
TEACHER RETIREMENT SYSTEM OF TEXAS trimmed35,263$875K0.1%2025-Q4 stale
Premier Fund Managers Ltd27,243$833K0.1%2025-Q1 stale
D.A. DAVIDSON & CO. trimmed26,510$822K0.1%2025-Q1 stale
DARK FOREST CAPITAL MANAGEMENT LP added28,667$813K0.1%2025-Q3 stale
SG Capital Management LLC new32,020$794K0.1%2025-Q4 stale
Cubist Systematic Strategies, LLC trimmed27,876$790K0.1%2025-Q3 stale
TWO SIGMA INVESTMENTS, LP added30,713$762K0.1%2025-Q4 stale
VARCOV Co. new30,002$744K0.1%2025-Q4 stale
QSV Equity Investors LLC trimmed29,786$739K0.1%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.

HoldersTotal shares

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.

Learn how to read institutional ownership