RadNet, Inc.
RDNT- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0000790526
No open-market purchases or sales by RadNet, Inc. insiders were filed in the last 90 days; 328 institutions reported holding it in 13F filings for Q2 2026, worth $5.03B in total; Soros Fund Management is the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in RadNet, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 328
- +4 vs. Q2 2025
- Shares held
- 74.1M
- +3.81M (+5.4%) vs. Q2 2025
- Total value
- $5.65B
- +$1.65B (+41.2%) vs. Q2 2025
- New holders
- 43
- 144 more added
- Sold out
- 39
- 96 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting RDNT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 328 | $5.03B |
| Q1 2026 | 340 | $4.31B |
| Q4 2025 | 342 | $5.44B |
| Q3 2025 | 328 | $5.65B |
| Q2 2025 | 328 | $4.03B |
| Q1 2025 | 307 | $3.43B |
| Q4 2024 | 330 | $4.49B |
| Q3 2024 | 303 | $4.42B |
| Q2 2024 | 277 | $3.60B |
| Q1 2024 | 277 | $2.91B |
| Q4 2023 | 214 | $1.86B |
| Q3 2023 | 191 | $1.49B |
| Q2 2023 | 185 | $1.66B |
| Q1 2023 | 152 | $1.00B |
| Q4 2022 | 145 | $744.5M |
| Q3 2022 | 153 | $798.7M |
| Q2 2022 | 152 | $672.9M |
| Q1 2022 | 164 | $847.5M |
| Q4 2021 | 171 | $1.08B |
| Q3 2021 | 179 | $1.04B |
| Q2 2021 | 169 | $1.20B |
| Q1 2021 | 142 | $764.5M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding RadNet, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fuller & Thaler Asset Management, Inc. | 705,659 | $53.8M | 0.18% | +705,659 | New |
| Morgan Stanley | 731,901 | $55.8M | 0.00% | −104,385−12.5% | Reduced |
| Charles Schwab Investment Management Inc | 741,038 | $56.5M | 0.01% | +84,824+12.9% | Added |
| Northern Trust Corp | 756,395 | $57.6M | 0.01% | +19,474+2.6% | Added |
| Loomis Sayles & Co L P | 778,209 | $59.3M | 0.07% | −20,090−2.5% | Reduced |
| Bamco Inc | 810,066 | $61.7M | 0.16% | +660.0% | Added |
| Van Berkom & Associates Inc. | 823,582 | $62.8M | 1.82% | +817,808+14,163.6% | Added |
| Polar Capital Holdings Plc | 832,214 | $63.4M | 0.31% | +832,214 | New |
| Rockefeller Capital Management L.P. | 877,066 | $66.8M | 0.13% | −213,223−19.6% | Reduced |
| Goldman Sachs Group Inc | 1,045,144 | $79.7M | 0.01% | +215,400+26.0% | Added |
| T. Rowe Price Investment Management, Inc. | 1,071,786 | $81.7M | 0.05% | −267,890−20.0% | Reduced |
| Principal Financial Group Inc | 1,141,837 | $87.0M | 0.04% | −79,700−6.5% | Reduced |
| Alyeska Investment Group, L.P. | 1,152,293 | $87.8M | 0.27% | +296,392+34.6% | Added |
| Clearbridge Investments, LLC | 1,186,060 | $90.4M | 0.07% | −21,292−1.8% | Reduced |
| Invesco Ltd. | 1,262,869 | $96.2M | 0.02% | −366,824−22.5% | Reduced |
| American Century Companies Inc | 1,263,501 | $96.3M | 0.05% | −60,652−4.6% | Reduced |
| Hood River Capital Management LLC | 1,371,294 | $104.5M | 1.23% | −5,848−0.4% | Reduced |
| Dimensional Fund Advisors LP | 1,377,720 | $105.0M | 0.02% | −30,018−2.1% | Reduced |
| Ameriprise Financial Inc | 1,413,734 | $107.7M | 0.02% | +19,182+1.4% | Added |
| JB Capital Partners LP | 1,424,061 | $108.5M | 18.36% | −50,000−3.4% | Reduced |
| Geode Capital Management, LLC | 1,664,888 | $126.9M | 0.01% | +24,700+1.5% | Added |
| Allspring Global Investments Holdings, LLC | 1,743,100 | $135.9M | 0.22% | −58,459−3.2% | Reduced |
| Price T Rowe Associates Inc | 2,071,146 | $157.8M | 0.02% | +1,924,549+1,312.8% | Added |
| State Street Corp | 2,537,717 | $193.4M | 0.01% | +55,476+2.2% | Added |
| RTW Investments, LP | 2,815,544 | $214.6M | 2.64% | +125,200+4.7% | Added |
| Beck Mack & Oliver LLC | 3,276,774 | $249.7M | 4.54% | +13,633+0.4% | Added |
| Vanguard Group Inc | 7,483,869 | $570.3M | 0.01% | +95,015+1.3% | Added |
| BlackRock, Inc. | 9,453,675 | $720.5M | 0.01% | +157,388+1.7% | Added |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −376,195−100.0% | Sold out |
| 8 Knots Management, LLC | 0 | $0 | 0.00% | −257,488−100.0% | Sold out |
| First Turn Management, LLC | 0 | $0 | 0.00% | −197,759−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −197,265−100.0% | Sold out |
| Kingdon Capital Management, L.L.C. | 0 | $0 | 0.00% | −173,000−100.0% | Sold out |
| Castleark Management LLC | 0 | $0 | 0.00% | −96,203−100.0% | Sold out |
| Nicholas Investment Partners, LP | 0 | $0 | 0.00% | −82,224−100.0% | Sold out |
| Meteora Capital, LLC | 0 | $0 | 0.00% | −58,157−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −57,790−100.0% | Sold out |
| Sapience Investments, LLC | 0 | $0 | 0.00% | −46,198−100.0% | Sold out |
| Calamos Advisors LLC | 0 | $0 | 0.00% | −31,164−100.0% | Sold out |
| Wellington Shields Capital Management, LLC | 0 | $0 | 0.00% | −17,300−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −16,967−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −11,971−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −11,724−100.0% | Sold out |
| Massar Capital Management, LP | 0 | $0 | 0.00% | −9,000−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −8,959−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −8,700−100.0% | Sold out |
| Wellington Shields & Co., LLC | 0 | $0 | 0.00% | −7,900−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −7,436−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −6,468−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −5,179−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −4,700−100.0% | Sold out |
| Mount Yale Investment Advisors, LLC | 0 | $0 | 0.00% | −4,400−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −3,993−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −2,244−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −512−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −391−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −219−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −185−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −192−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −104−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Garde Capital, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |
| Parkworth Wealth Management, Inc. | – | – | – | – | Not filed |