Who owns Nutex Health, Inc. (NUTX)
Which tracked institutional funds hold NUTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NUTX 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
22 tracked funds added or opened NUTX while 46 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
NUTX’s largest tracked holder by dollar value, VANGUARD GROUP 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 NUTX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in NUTX 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 127 tracked filers holding NUTX, 90 increased or opened the position and 54 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
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 NUTX 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 15
- VANGUARD CAPITAL MANAGEMENT LLC$21M
- WINMILL & CO. INC$6M
- VANGUARD PORTFOLIO MANAGEMENT LLC$4M
- VANGUARD FIDUCIARY TRUST CO$3M
- Empowered Funds, LLC$3M
- Trexquant Investment LP$3M
Full exits 8
- VANGUARD GROUP INC$37M
- Pacer Advisors, Inc.$5M
- Penserra Capital Management LLC$3M
- LAZARD ASSET MANAGEMENT LLC$2M
- JANE STREET GROUP, LLC$1M
- JANUS HENDERSON GROUP PLC$1M
Largest adds
- LOS ANGELES CAPITAL MANAGEMENT LLC$3M
- SG Americas Securities, LLC$3M
- VICTORY CAPITAL MANAGEMENT INC$2M
- STATE OF WISCONSIN INVESTMENT BOARD$1M
- ISLAY CAPITAL MANAGEMENT, LLC$517K
- OSAIC HOLDINGS, INC.$414K
Largest trims
- Topline Capital Management, LLC$94M
- Pertento Partners LLP$18M
- BlackRock, Inc.$10M
- MORGAN STANLEY$5M
- MILLENNIUM MANAGEMENT LLC$4M
- ONE PLUS ONE WEALTH MANAGEMENT, LLC$3M
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 | 379,355 | $36M | 10.4% | 2026-Q1 |
| Pertento Partners LLP added | 373,970 | $36M | 10.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 219,131 | $21M | 6.0% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 203,450 | $19M | 5.6% | 2026-Q1 |
| Topline Capital Management, LLC trimmed | 177,800 | $17M | 4.9% | 2026-Q1 |
| STATE STREET CORP added | 123,177 | $12M | 3.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 122,113 | $12M | 3.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 89,571 | $9M | 2.5% | 2026-Q1 |
| UBS Group AG added | 69,570 | $7M | 1.9% | 2026-Q1 |
| WINMILL & CO. INC new | 65,350 | $6M | 1.8% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 45,134 | $4M | 1.2% | 2026-Q1 |
| MORGAN STANLEY trimmed | 42,498 | $4M | 1.2% | 2026-Q1 |
| NORTHERN TRUST CORP added | 41,267 | $4M | 1.1% | 2026-Q1 |
| ONE PLUS ONE WEALTH MANAGEMENT, LLC | 40,441 | $4M | 1.1% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 39,803 | $4M | 1.1% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 35,828 | $3M | 1.0% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 33,795 | $3M | 0.9% | 2026-Q1 |
| Empowered Funds, LLC new | 32,451 | $3M | 0.9% | 2026-Q1 |
| Trexquant Investment LP added | 32,372 | $3M | 0.9% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 32,059 | $3M | 0.9% | 2026-Q1 |
| SG Americas Securities, LLC added | 30,360 | $3M | 0.8% | 2026-Q1 |
| TRUIST FINANCIAL CORP added | 26,322 | $3M | 0.7% | 2026-Q1 |
| DRIVE WEALTH MANAGEMENT, LLC added | 23,377 | $2M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp added | 21,622 | $2M | 0.6% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 22,499 | $2M | 0.6% | 2026-Q1 |
| HUSSMAN STRATEGIC ADVISORS, INC. | 21,000 | $2M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 20,451 | $2M | 0.5% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 18,335 | $2M | 0.5% | 2026-Q1 |
| BARCLAYS PLC added | 17,887 | $2M | 0.5% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 17,640 | $2M | 0.5% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 15,063 | $1M | 0.4% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC new | 15,020 | $1M | 0.4% | 2026-Q1 |
| NOMURA HOLDINGS INC new | 14,002 | $1M | 0.4% | 2026-Q1 |
| Smith Group Asset Management, LLC new | 13,087 | $1M | 0.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 11,884 | $1M | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 10,577 | $1M | 0.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 10,569 | $1M | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 10,098 | $960K | 0.3% | 2026-Q1 |
| LPL Financial LLC added | 9,845 | $936K | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 9,027 | $858K | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP new | 8,875 | $843K | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 8,182 | $778K | 0.2% | 2026-Q1 |
| Centiva Capital, LP new | 8,075 | $767K | 0.2% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC new | 7,983 | $759K | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 7,884 | $749K | 0.2% | 2026-Q1 |
| PFG Advisors added | 7,514 | $714K | 0.2% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC new | 7,098 | $675K | 0.2% | 2026-Q1 |
| Cambria Investment Management, L.P. added | 7,047 | $670K | 0.2% | 2026-Q1 |
| Swiss National Bank | 7,000 | $665K | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 6,977 | $663K | 0.2% | 2026-Q1 |
| Corient Private Wealth LLC trimmed | 6,359 | $604K | 0.2% | 2026-Q1 |
| Clear Creek Financial Management, LLC added | 6,143 | $584K | 0.2% | 2026-Q1 |
| SummerHaven Investment Management, LLC trimmed | 6,070 | $577K | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 5,809 | $552K | 0.2% | 2026-Q1 |
| ISLAY CAPITAL MANAGEMENT, LLC added | 5,807 | $552K | 0.2% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 5,762 | $548K | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 5,695 | $541K | 0.2% | 2026-Q1 |
| JUPITER ASSET MANAGEMENT LTD new | 5,664 | $538K | 0.2% | 2026-Q1 |
| ALPS ADVISORS INC added | 5,578 | $530K | 0.2% | 2026-Q1 |
| Cetera Investment Advisers trimmed | 5,528 | $525K | 0.2% | 2026-Q1 |
| XTX Topco Ltd trimmed | 4,842 | $460K | 0.1% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 4,598 | $437K | 0.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 4,206 | $400K | 0.1% | 2026-Q1 |
| Creative Planning trimmed | 3,915 | $372K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 227,602 | $37M | 10.8% | 2025-Q4 stale |
| MARSHALL WACE, LLP added | 94,548 | $12M | 3.4% | 2025-Q2 stale |
| Divisadero Street Capital Management, LP new | 60,094 | $7M | 2.2% | 2025-Q2 stale |
| Pacer Advisors, Inc. added | 33,289 | $5M | 1.6% | 2025-Q4 stale |
| ESSEX INVESTMENT MANAGEMENT CO LLC trimmed | 32,403 | $4M | 1.2% | 2025-Q2 stale |
| Penserra Capital Management LLC new | 16,851 | $3M | 0.8% | 2025-Q4 stale |
| LAZARD ASSET MANAGEMENT LLC trimmed | 14,088 | $2M | 0.7% | 2025-Q4 stale |
| RENAISSANCE TECHNOLOGIES LLC added | 11,300 | $1M | 0.4% | 2025-Q2 stale |
| JANE STREET GROUP, LLC trimmed | 7,895 | $1M | 0.4% | 2025-Q4 stale |
| Legato Capital Management LLC trimmed | 9,664 | $1M | 0.3% | 2025-Q2 stale |
| Quadrature Capital Ltd new | 8,909 | $1M | 0.3% | 2025-Q2 stale |
| JANUS HENDERSON GROUP PLC trimmed | 6,655 | $1M | 0.3% | 2025-Q4 stale |
| Baader Bank Aktiengesellschaft trimmed | 8,500 | $1M | 0.3% | 2025-Q2 stale |
| AVANTAX ADVISORY SERVICES, INC. trimmed | 7,626 | $949K | 0.3% | 2025-Q2 stale |
| VIRGINIA RETIREMENT SYSTEMS ET Al added | 5,600 | $922K | 0.3% | 2025-Q4 stale |
| SIERRA SUMMIT ADVISORS LLC added | 8,197 | $847K | 0.2% | 2025-Q3 stale |
| CITADEL ADVISORS LLC trimmed | 6,737 | $839K | 0.2% | 2025-Q2 stale |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 7,755 | $801K | 0.2% | 2025-Q3 stale |
| Allianz Asset Management GmbH added | 6,973 | $720K | 0.2% | 2025-Q3 stale |
| Ancora Advisors LLC trimmed | 5,346 | $666K | 0.2% | 2025-Q2 stale |
| Informed Momentum Co LLC trimmed | 5,081 | $633K | 0.2% | 2025-Q2 stale |
| Squarepoint Ops LLC trimmed | 3,624 | $597K | 0.2% | 2025-Q4 stale |
| Jump Financial, LLC new | 4,173 | $519K | 0.1% | 2025-Q2 stale |
| Precision Wealth Strategies, LLC new | 4,989 | $515K | 0.1% | 2025-Q3 stale |
| Qube Research & Technologies Ltd trimmed | 10,756 | $506K | 0.1% | 2025-Q1 stale |
| GSA CAPITAL PARTNERS LLP added | 4,729 | $489K | 0.1% | 2025-Q3 stale |
| TUDOR INVESTMENT CORP ET AL trimmed | 3,756 | $468K | 0.1% | 2025-Q2 stale |
| OMERS ADMINISTRATION Corp added | 9,400 | $442K | 0.1% | 2025-Q1 stale |
| CreativeOne Wealth, LLC new | 3,488 | $434K | 0.1% | 2025-Q2 stale |
| MACKENZIE FINANCIAL CORP trimmed | 2,339 | $425K | 0.1% | 2025-Q4 stale |
| MANGROVE PARTNERS IM, LLC new | 2,564 | $422K | 0.1% | 2025-Q4 stale |
| FNY Investment Advisers, LLC new | 3,333 | $414K | 0.1% | 2025-Q2 stale |
| HRT FINANCIAL LP trimmed | 8,593 | $404K | 0.1% | 2025-Q1 stale |
| Tidal Investments LLC trimmed | 3,147 | $392K | 0.1% | 2025-Q2 stale |
| Verition Fund Management LLC trimmed | 3,071 | $382K | 0.1% | 2025-Q2 stale |
| Integrated Quantitative Investments LLC trimmed | 2,294 | $378K | 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.