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 |
|---|---|---|---|---|---|
| Mirae Asset Global ETFs Holdings Ltd. | 32,050 | $1.79M | 0.00% | +347+1.1% | Added |
| Fifth Third Bancorp | 34,224 | $1.91M | 0.00% | +33,714+6,610.6% | Added |
| Balyasny Asset Management LLC | 34,246 | $1.91M | 0.00% | −159,952−82.4% | Reduced |
| Manufacturers Life Insurance Company, The | 34,460 | $1.93M | 0.00% | −18,543−35.0% | Reduced |
| Oak Ridge Investments LLC | 34,699 | $1.94M | 0.13% | +345+1.0% | Added |
| Scotia Capital Inc. | 36,148 | $2.02M | 0.01% | +189+0.5% | Added |
| Teachers Retirement System of the State of Kentucky | 36,190 | $2.02M | 0.02% | −3,407−8.6% | Reduced |
| E. Ohman J:or Asset Management AB | 36,403 | $2.03M | 0.05% | +5,737+18.7% | Added |
| LPL Financial LLC | 36,640 | $2.05M | 0.00% | −5,732−13.5% | Reduced |
| EFG International AG | 37,157 | $2.08M | 0.04% | −2,008−5.1% | Reduced |
| White Pine Capital LLC | 37,187 | $2.08M | 0.57% | +60.0% | Added |
| MetLife Investment Management | 37,317 | $2.09M | 0.01% | −568−1.5% | Reduced |
| Lido Advisors, LLC | 37,367 | $2.09M | 0.01% | +67+0.2% | Added |
| Creative Planning | 37,739 | $2.11M | 0.00% | +1,422+3.9% | Added |
| New York State Teachers Retirement System | 38,184 | $2.13M | 0.00% | −2,271−5.6% | Reduced |
| Future Fund LLC | 38,198 | $2.13M | 0.75% | +7,928+26.2% | Added |
| One Capital Management, LLC | 38,198 | $2.13M | 0.06% | +7,928+26.2% | Added |
| State of Alaska, Department of Revenue | 38,648 | $2.16M | 0.02% | −1,014−2.6% | Reduced |
| Fieldview Capital Management, LLC | 39,509 | $2.21M | 0.64% | +39,509 | New |
| Illinois Municipal Retirement Fund | 40,344 | $2.25M | 0.03% | +60+0.1% | Added |
| Natixis Advisors, L.P. | 40,548 | $2.27M | 0.00% | −2,459−5.7% | Reduced |
| Congress Asset Management Co | 40,631 | $2.27M | 0.02% | +40,631 | New |
| Miracle Mile Advisors, LLC | 40,706 | $2.28M | 0.03% | +35,703+713.6% | Added |
| Rathbone Brothers plc | 41,328 | $2.31M | 0.01% | 00.0% | Unchanged |
| Prescott Group Capital Management, L.L.C. | 41,611 | $2.33M | 0.23% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 41,617 | $2.33M | 0.08% | +30,479+273.6% | Added |
| Portland Investment Counsel Inc. | 42,000 | $2.35M | 0.75% | 00.0% | Unchanged |
| Knights of Columbus Asset Advisors LLC | 42,872 | $2.40M | 0.14% | −551−1.3% | Reduced |
| Victory Capital Management Inc | 43,902 | $2.45M | 0.00% | −1,235−2.7% | Reduced |
| Susquehanna International Group, LLP | 45,091 | $2.52M | 0.00% | +35,716+381.0% | Added |
| Millennium Management LLC | 46,578 | $2.60M | 0.00% | −334,383−87.8% | Reduced |
| Gilder Gagnon Howe & Co LLC | 49,492 | $2.77M | 0.03% | −3,213−6.1% | Reduced |
| D. E. Shaw & Co., Inc. | 50,474 | $2.82M | 0.00% | +50,474 | New |
| Axiom Investors LLC | 51,038 | $2.85M | 0.03% | −54,241−51.5% | Reduced |
| Paradigm Capital Management Inc | 54,700 | $3.06M | 0.12% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 55,462 | $3.10M | 0.01% | −2,434−4.2% | Reduced |
| Verition Fund Management LLC | 55,691 | $3.11M | 0.03% | +24,991+81.4% | Added |
| Russell Investments Group, Ltd. | 57,198 | $3.20M | 0.00% | −9,273−14.0% | Reduced |
| Man Group plc | 57,201 | $3.20M | 0.01% | +57,201 | New |
| Great West Life Assurance Co | 57,413 | $3.21M | 0.01% | −2,196−3.7% | Reduced |
| Wells Fargo & Company | 57,395 | $3.21M | 0.00% | −52,277−47.7% | Reduced |
| Squarepoint Ops LLC | 58,456 | $3.27M | 0.01% | +58,456 | New |
| Vanguard Asset Management, Ltd | 62,102 | $3.47M | 0.00% | +62,102 | New |
| First Trust Advisors LP | 65,271 | $3.65M | 0.00% | −28,088−30.1% | Reduced |
| D.A. Davidson & Co. | 65,575 | $3.66M | 0.02% | 00.0% | Unchanged |
| Prudential Financial Inc | 71,333 | $3.99M | 0.00% | +6,710+10.4% | Added |
| Hilton Capital Management, LLC | 74,576 | $4.17M | 0.31% | +9,571+14.7% | Added |
| State of Wisconsin Investment Board | 76,640 | $4.28M | 0.01% | −4,138−5.1% | Reduced |
| SEB Asset Management AB | 76,697 | $4.29M | 0.02% | +76,697 | New |
| California State Teachers Retirement System | 77,646 | $4.34M | 0.00% | +15,746+25.4% | Added |
| Caisse de Depot Et Placement du Quebec | 82,558 | $4.61M | 0.01% | +82,558 | New |
| Citigroup Inc | 89,723 | $5.01M | 0.00% | −27,226−23.3% | Reduced |
| First Eagle Investment Management, LLC | 94,136 | $5.26M | 0.01% | +1,000+1.1% | Added |
| Envestnet Asset Management Inc | 102,840 | $5.75M | 0.00% | −4,714−4.4% | Reduced |
| Granahan Investment Management Inc | 104,282 | $5.83M | 0.28% | +104,282 | New |
| Harbor Capital Advisors, Inc. | 105,191 | $5.88M | 0.48% | −8,569−7.5% | Reduced |
| Sequoia Financial Advisors, LLC | 112,992 | $6.32M | 0.04% | −682−0.6% | Reduced |
| BNP Paribas Arbitrage, SA | 115,585 | $6.46M | 0.00% | −921−0.8% | Reduced |
| Pier Capital, LLC | 118,889 | $6.64M | 1.10% | −2,116−1.7% | Reduced |
| Whittier Trust Co of Nevada Inc | 121,167 | $6.67M | 0.14% | +4,253+3.6% | Added |
| Holocene Advisors, LP | 120,154 | $6.72M | 0.02% | +120,154 | New |
| Robotti Robert | 120,492 | $6.73M | 1.05% | −63,569−34.5% | Reduced |
| Cerity Partners LLC | 123,487 | $6.90M | 0.01% | −23,896−16.2% | Reduced |
| Swiss National Bank | 129,900 | $7.26M | 0.00% | +900+0.7% | Added |
| Mairs & Power Inc | 133,116 | $7.44M | 0.08% | +37,468+39.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 136,579 | $7.63M | 0.01% | +44,771+48.8% | Added |
| JPMorgan Chase & Co | 137,198 | $7.65M | 0.00% | +61,296+80.8% | Added |
| Royce & Associates LP | 137,009 | $7.66M | 0.08% | +23,350+20.5% | Added |
| Thrivent Financial for Lutherans | 141,547 | $7.91M | 0.02% | +93,838+196.7% | Added |
| Alliancebernstein L.P. | 113,074 | $8.07M | 0.00% | −51,314−31.2% | Reduced |
| Legal & General Group Plc | 158,031 | $8.83M | 0.00% | −13,066−7.6% | Reduced |
| Rhumbline Advisers | 186,648 | $10.4M | 0.01% | +4,555+2.5% | Added |
| Agf Management Ltd | 187,390 | $10.5M | 0.05% | +28,375+17.8% | Added |
| FMR LLC | 222,358 | $12.4M | 0.00% | +412+0.2% | Added |
| Whittier Trust Co | 241,509 | $13.3M | 0.15% | +22,216+10.1% | Added |
| Public Sector Pension Investment Board | 249,232 | $13.9M | 0.04% | +8,951+3.7% | Added |
| Emerald Mutual Fund Advisers Trust | 250,597 | $14.0M | 0.68% | −649−0.3% | Reduced |
| SEI Investments Co | 255,020 | $14.3M | 0.01% | −14,265−5.3% | Reduced |
| WCM Investment Management, LLC | 257,378 | $14.3M | 0.03% | −10,846−4.0% | Reduced |
| Penn Capital Management Co Inc | 276,781 | $15.5M | 1.20% | +2,414+0.9% | Added |
| Palisade Capital Management LLC | 291,346 | $16.3M | 0.54% | +130,209+80.8% | Added |
| New York State Common Retirement Fund | 298,778 | $16.7M | 0.02% | +51,059+20.6% | Added |
| Segall Bryant & Hamill, LLC | 301,812 | $16.9M | 0.24% | −15,660−4.9% | Reduced |
| Picton Mahoney Asset Management | 309,120 | $17.3M | 0.18% | +91,455+42.0% | Added |
| Fred Alger Management, LLC | 341,938 | $19.1M | 0.08% | −205,912−37.6% | Reduced |
| Jennison Associates LLC | 355,106 | $19.8M | 0.01% | +4,491+1.3% | Added |
| Freestone Grove Partners LP | 365,394 | $20.4M | 0.15% | +184,383+101.9% | Added |
| Silvercrest Asset Management Group LLC | 381,502 | $21.3M | 0.15% | +46,247+13.8% | Added |
| Emerald Advisers, LLC | 381,764 | $21.3M | 0.68% | −12,951−3.3% | Reduced |
| Wellington Management Group LLP | 395,856 | $22.1M | 0.00% | −9,965−2.5% | Reduced |
| Bank of New York Mellon Corp | 410,345 | $22.9M | 0.00% | −12,488−3.0% | Reduced |
| Voya Investment Management LLC | 417,380 | $23.3M | 0.02% | +76,594+22.5% | Added |
| Raymond James Financial Inc | 423,680 | $23.7M | 0.01% | +30,210+7.7% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 438,450 | $24.5M | 0.34% | −136,105−23.7% | Reduced |
| Toroso Investments, LLC | 442,145 | $24.7M | 0.08% | +41,990+10.5% | Added |
| Franklin Resources Inc | 458,625 | $25.6M | 0.01% | −97,718−17.6% | Reduced |
| Royal Bank of Canada | 468,283 | $26.2M | 0.00% | −6,105−1.3% | Reduced |
| Vanguard Fiduciary Trust Co | 476,460 | $26.6M | 0.01% | +476,460 | New |
| Falcon Edge Capital, LP | 478,304 | $26.7M | 3.38% | −63,147−11.7% | Reduced |
| Deutsche Bank AG | 482,369 | $27.0M | 0.01% | +6,257+1.3% | Added |