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, Q1 2026
Institutional positions in RadNet, Inc. as of Mar 31, 2026. 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
- 340
- +5 vs. Q4 2025
- Shares held
- 77.1M
- +8.82M (+12.9%) vs. Q4 2025
- Total value
- $4.31B
- −$563.5M (−11.6%) vs. Q4 2025
- New holders
- 52
- 137 more added
- Sold out
- 47
- 102 more reduced
7 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding RadNet, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,035,734 | $560.9M | 0.01% | +14,714+0.1% | Added |
| RTW Investments, LP | 4,285,000 | $239.5M | 2.38% | +346,500+8.8% | Added |
| Price T Rowe Associates Inc | 4,154,863 | $232.2M | 0.03% | +1,455,781+53.9% | Added |
| Vanguard Portfolio Management LLC | 3,899,127 | $217.9M | 0.01% | +3,899,127 | New |
| Beck Mack & Oliver LLC | 3,166,192 | $177.0M | 3.65% | −65,259−2.0% | Reduced |
| Vanguard Capital Management LLC | 3,111,012 | $173.9M | 0.00% | +3,111,012 | New |
| State Street Corp | 2,651,598 | $148.2M | 0.01% | +72,525+2.8% | Added |
| Geode Capital Management, LLC | 1,723,607 | $96.4M | 0.01% | +52,064+3.1% | Added |
| Invesco Ltd. | 1,633,495 | $91.3M | 0.01% | +36,715+2.3% | Added |
| JB Capital Partners LP | 1,424,061 | $79.6M | 13.71% | 00.0% | Unchanged |
| Hood River Capital Management LLC | 1,411,497 | $78.9M | 0.79% | +15,606+1.1% | Added |
| Dimensional Fund Advisors LP | 1,379,003 | $77.1M | 0.02% | +19,188+1.4% | Added |
| Alyeska Investment Group, L.P. | 1,309,308 | $73.2M | 0.21% | +157,015+13.6% | Added |
| Clearbridge Investments, LLC | 1,278,540 | $71.5M | 0.06% | +163,567+14.7% | Added |
| Goldman Sachs Group Inc | 1,190,275 | $66.5M | 0.01% | +70,233+6.3% | Added |
| Principal Financial Group Inc | 1,111,277 | $62.1M | 0.03% | −21,812−1.9% | Reduced |
| Van Berkom & Associates Inc. | 1,028,586 | $57.5M | 1.87% | +204,858+24.9% | Added |
| American Century Companies Inc | 902,192 | $50.4M | 0.03% | −5,840−0.6% | Reduced |
| Ameriprise Financial Inc | 899,126 | $50.2M | 0.01% | −221,018−19.7% | Reduced |
| Allspring Global Investments Holdings, LLC | 865,404 | $47.9M | 0.08% | −182,923−17.4% | Reduced |
| Point72 Asset Management, L.P. | 855,372 | $47.8M | 0.08% | +597,759+232.0% | Added |
| Morgan Stanley | 850,471 | $47.5M | 0.00% | −99,500−10.5% | Reduced |
| Bamco Inc | 810,066 | $45.3M | 0.14% | 00.0% | Unchanged |
| Fuller & Thaler Asset Management, Inc. | 806,296 | $45.1M | 0.15% | +37,832+4.9% | Added |
| Charles Schwab Investment Management Inc | 767,471 | $42.9M | 0.01% | +9,167+1.2% | Added |
| Northern Trust Corp | 746,807 | $41.7M | 0.01% | +17,325+2.4% | Added |
| Polar Capital Holdings Plc | 734,253 | $41.0M | 0.18% | +76,202+11.6% | Added |
| Rockefeller Capital Management L.P. | 703,116 | $39.3M | 0.07% | +70,849+11.2% | Added |
| Loomis Sayles & Co L P | 686,215 | $38.4M | 0.05% | −57,257−7.7% | Reduced |
| UBS Asset Management Americas Inc | 673,249 | $37.6M | 0.01% | −15,981−2.3% | Reduced |
| Nuveen, LLC | 661,282 | $37.0M | 0.01% | −37,123−5.3% | Reduced |
| Global Alpha Capital Management Ltd. | 658,208 | $36.8M | 2.21% | +170,039+34.8% | Added |
| Punch & Associates Investment Management, Inc. | 595,280 | $33.3M | 1.92% | −55,889−8.6% | Reduced |
| Bank of America Corp | 589,610 | $33.0M | 0.00% | +77,198+15.1% | Added |
| Bessemer Group Inc | 550,172 | $30.7M | 0.05% | +56,173+11.4% | Added |
| Defiance ETFs, LLC | 545,474 | $30.5M | 0.44% | +27,652+5.3% | Added |
| Penserra Capital Management LLC | 545,474 | $30.5M | 0.36% | +27,652+5.3% | Added |
| Westfield Capital Management Co LP | 531,893 | $29.7M | 0.12% | +1320.0% | Added |
| Neuberger Berman Group LLC | 503,172 | $28.1M | 0.02% | −85,813−14.6% | Reduced |
| UBS Group AG | 486,659 | $27.2M | 0.00% | +171,221+54.3% | Added |
| Deutsche Bank AG | 482,369 | $27.0M | 0.01% | +6,257+1.3% | Added |
| Falcon Edge Capital, LP | 478,304 | $26.7M | 3.38% | −63,147−11.7% | Reduced |
| Vanguard Fiduciary Trust Co | 476,460 | $26.6M | 0.01% | +476,460 | New |
| Royal Bank of Canada | 468,283 | $26.2M | 0.00% | −6,105−1.3% | Reduced |
| Franklin Resources Inc | 458,625 | $25.6M | 0.01% | −97,718−17.6% | Reduced |
| Toroso Investments, LLC | 442,145 | $24.7M | 0.08% | +41,990+10.5% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 438,450 | $24.5M | 0.34% | −136,105−23.7% | Reduced |
| Raymond James Financial Inc | 423,680 | $23.7M | 0.01% | +30,210+7.7% | Added |
| Voya Investment Management LLC | 417,380 | $23.3M | 0.02% | +76,594+22.5% | Added |
| Bank of New York Mellon Corp | 410,345 | $22.9M | 0.00% | −12,488−3.0% | Reduced |
| Wellington Management Group LLP | 395,856 | $22.1M | 0.00% | −9,965−2.5% | Reduced |
| Emerald Advisers, LLC | 381,764 | $21.3M | 0.68% | −12,951−3.3% | Reduced |
| Silvercrest Asset Management Group LLC | 381,502 | $21.3M | 0.15% | +46,247+13.8% | Added |
| Freestone Grove Partners LP | 365,394 | $20.4M | 0.15% | +184,383+101.9% | Added |
| Jennison Associates LLC | 355,106 | $19.8M | 0.01% | +4,491+1.3% | Added |
| Fred Alger Management, LLC | 341,938 | $19.1M | 0.08% | −205,912−37.6% | Reduced |
| Picton Mahoney Asset Management | 309,120 | $17.3M | 0.18% | +91,455+42.0% | Added |
| Segall Bryant & Hamill, LLC | 301,812 | $16.9M | 0.24% | −15,660−4.9% | Reduced |
| New York State Common Retirement Fund | 298,778 | $16.7M | 0.02% | +51,059+20.6% | Added |
| Palisade Capital Management LLC | 291,346 | $16.3M | 0.54% | +130,209+80.8% | Added |
| Penn Capital Management Co Inc | 276,781 | $15.5M | 1.20% | +2,414+0.9% | Added |
| WCM Investment Management, LLC | 257,378 | $14.3M | 0.03% | −10,846−4.0% | Reduced |
| SEI Investments Co | 255,020 | $14.3M | 0.01% | −14,265−5.3% | Reduced |
| Emerald Mutual Fund Advisers Trust | 250,597 | $14.0M | 0.68% | −649−0.3% | Reduced |
| Public Sector Pension Investment Board | 249,232 | $13.9M | 0.04% | +8,951+3.7% | Added |
| Whittier Trust Co | 241,509 | $13.3M | 0.15% | +22,216+10.1% | Added |
| FMR LLC | 222,358 | $12.4M | 0.00% | +412+0.2% | Added |
| Agf Management Ltd | 187,390 | $10.5M | 0.05% | +28,375+17.8% | Added |
| Rhumbline Advisers | 186,648 | $10.4M | 0.01% | +4,555+2.5% | Added |
| Legal & General Group Plc | 158,031 | $8.83M | 0.00% | −13,066−7.6% | Reduced |
| Alliancebernstein L.P. | 113,074 | $8.07M | 0.00% | −51,314−31.2% | Reduced |
| Thrivent Financial for Lutherans | 141,547 | $7.91M | 0.02% | +93,838+196.7% | Added |
| Royce & Associates LP | 137,009 | $7.66M | 0.08% | +23,350+20.5% | Added |
| JPMorgan Chase & Co | 137,198 | $7.65M | 0.00% | +61,296+80.8% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 136,579 | $7.63M | 0.01% | +44,771+48.8% | Added |
| Mairs & Power Inc | 133,116 | $7.44M | 0.08% | +37,468+39.2% | Added |
| Swiss National Bank | 129,900 | $7.26M | 0.00% | +900+0.7% | Added |
| Cerity Partners LLC | 123,487 | $6.90M | 0.01% | −23,896−16.2% | Reduced |
| Robotti Robert | 120,492 | $6.73M | 1.05% | −63,569−34.5% | Reduced |
| Holocene Advisors, LP | 120,154 | $6.72M | 0.02% | +120,154 | New |
| Whittier Trust Co of Nevada Inc | 121,167 | $6.67M | 0.14% | +4,253+3.6% | Added |
| Pier Capital, LLC | 118,889 | $6.64M | 1.10% | −2,116−1.7% | Reduced |
| BNP Paribas Arbitrage, SA | 115,585 | $6.46M | 0.00% | −921−0.8% | Reduced |
| Sequoia Financial Advisors, LLC | 112,992 | $6.32M | 0.04% | −682−0.6% | Reduced |
| Harbor Capital Advisors, Inc. | 105,191 | $5.88M | 0.48% | −8,569−7.5% | Reduced |
| Granahan Investment Management Inc | 104,282 | $5.83M | 0.28% | +104,282 | New |
| Envestnet Asset Management Inc | 102,840 | $5.75M | 0.00% | −4,714−4.4% | Reduced |
| First Eagle Investment Management, LLC | 94,136 | $5.26M | 0.01% | +1,000+1.1% | Added |
| Citigroup Inc | 89,723 | $5.01M | 0.00% | −27,226−23.3% | Reduced |
| Caisse de Depot Et Placement du Quebec | 82,558 | $4.61M | 0.01% | +82,558 | New |
| California State Teachers Retirement System | 77,646 | $4.34M | 0.00% | +15,746+25.4% | Added |
| SEB Asset Management AB | 76,697 | $4.29M | 0.02% | +76,697 | New |
| State of Wisconsin Investment Board | 76,640 | $4.28M | 0.01% | −4,138−5.1% | Reduced |
| Hilton Capital Management, LLC | 74,576 | $4.17M | 0.31% | +9,571+14.7% | Added |
| Prudential Financial Inc | 71,333 | $3.99M | 0.00% | +6,710+10.4% | Added |
| D.A. Davidson & Co. | 65,575 | $3.66M | 0.02% | 00.0% | Unchanged |
| First Trust Advisors LP | 65,271 | $3.65M | 0.00% | −28,088−30.1% | Reduced |
| Vanguard Asset Management, Ltd | 62,102 | $3.47M | 0.00% | +62,102 | New |
| Squarepoint Ops LLC | 58,456 | $3.27M | 0.01% | +58,456 | New |
| Wells Fargo & Company | 57,395 | $3.21M | 0.00% | −52,277−47.7% | Reduced |