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 |
|---|---|---|---|---|---|
| Everence Capital Management Inc | 3,960 | $221.0K | 0.01% | 00.0% | Unchanged |
| Excalibur Management Corp | 4,000 | $223.6K | 0.08% | 00.0% | Unchanged |
| Spears Abacus Advisors LLC | 4,100 | $229.1K | 0.00% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 4,226 | $236.2K | 0.00% | +776+22.5% | Added |
| Swiss Life Asset Management Ltd | 4,226 | $236.2K | 0.00% | +1,258+42.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 4,274 | $238.9K | 0.00% | +4,274 | New |
| CIBC World Markets Inc. | 4,281 | $239.3K | 0.00% | +17+0.4% | Added |
| Truist Financial Corp | 4,659 | $260.4K | 0.00% | −3,591−43.5% | Reduced |
| Amundi | 4,667 | $260.8K | 0.00% | +4,667 | New |
| Beverly Hills Private Wealth, LLC | 4,700 | $262.7K | 0.04% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 4,703 | $262.9K | 0.00% | +1,749+59.2% | Added |
| Ground Swell Capital, LLC | 4,704 | $262.9K | 0.52% | +4,704 | New |
| Two Sigma Investments, LP | 4,856 | $271.4K | 0.00% | −25,799−84.2% | Reduced |
| JustInvest LLC | 5,009 | $280.0K | 0.00% | +1,168+30.4% | Added |
| Crossmark Global Holdings, Inc. | 5,052 | $282.4K | 0.00% | +4+0.1% | Added |
| Quadrant Capital Group LLC | 5,059 | $282.7K | 0.01% | +11+0.2% | Added |
| Impact Capital Partners LLC | 5,099 | $285.0K | 0.09% | +10+0.2% | Added |
| Yorktown Management & Research Co Inc | 5,350 | $299.0K | 0.25% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 5,545 | $309.9K | 0.01% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 5,615 | $314.0K | 0.00% | 00.0% | Unchanged |
| CI Private Wealth, LLC | 5,690 | $316.9K | 0.00% | −369−6.1% | Reduced |
| New Age Alpha Advisors, LLC | 6,034 | $337.2K | 0.02% | −158−2.6% | Reduced |
| Oppenheimer Asset Management Inc. | 6,257 | $349.7K | 0.00% | −1,701−21.4% | Reduced |
| Xponance, Inc. | 6,400 | $357.7K | 0.00% | +1,028+19.1% | Added |
| Samalin Investment Counsel, LLC | 6,440 | $359.9K | 0.13% | 00.0% | Unchanged |
| Cetera Investment Advisers | 6,447 | $360.3K | 0.00% | +262+4.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 6,577 | $360.4K | 0.00% | −6,443−49.5% | Reduced |
| Mount Yale Investment Advisors, LLC | 6,780 | $378.9K | 0.01% | +6,780 | New |
| Evergreen Capital Management LLC | 6,889 | $385.0K | 0.01% | +2,005+41.1% | Added |
| Stratos Wealth Partners, LTD. | 6,931 | $387.4K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 6,968 | $389.4K | 0.00% | −110−1.6% | Reduced |
| Virtu Financial LLC | 7,218 | $403.0K | 0.02% | +7,218 | New |
| The PNC Financial Services Group, Inc. | 7,392 | $413.1K | 0.00% | +207+2.9% | Added |
| Bank of Montreal | 7,517 | $420.1K | 0.00% | +1,960+35.3% | Added |
| Tower Research Capital LLC (TRC) | 7,590 | $424.2K | 0.01% | +4,131+119.4% | Added |
| Mutual of America Capital Management LLC | 7,971 | $445.5K | 0.01% | +35+0.4% | Added |
| Quantinno Capital Management LP | 7,978 | $445.9K | 0.00% | +1,515+23.4% | Added |
| Tiaa-Cref Individual & Institutional Services, LLC | 7,991 | $446.6K | 0.00% | +7,991 | New |
| Sectoral Asset Management Inc | 7,999 | $447.1K | 0.37% | −3,001−27.3% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 8,033 | $449.0K | 0.00% | +540+7.2% | Added |
| US Bancorp | 8,165 | $456.3K | 0.00% | −11,845−59.2% | Reduced |
| Walleye Trading LLC | 8,609 | $481.2K | 0.01% | +8,609 | New |
| Tudor Investment Corp Et Al | 8,781 | $490.8K | 0.00% | +8,781 | New |
| Advisors Asset Management, Inc. | 8,819 | $492.9K | 0.01% | +1,547+21.3% | Added |
| CWM Advisors, LLC | 9,119 | $509.7K | 0.03% | +2,530+38.4% | Added |
| Fulton Bank, N.A. | 9,235 | $516.1K | 0.02% | −115−1.2% | Reduced |
| Boothbay Fund Management, LLC | 9,911 | $553.9K | 0.01% | +9,911 | New |
| Royal Palms Capital LLC | 10,000 | $558.9K | 0.55% | 00.0% | Unchanged |
| Maryland State Retirement & Pension System | 10,190 | $569.5K | 0.01% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 10,432 | $583.0K | 0.01% | +4,203+67.5% | Added |
| ProShare Advisors LLC | 10,641 | $594.7K | 0.00% | −2,653−20.0% | Reduced |
| Steigerwald, Gordon & Koch Inc. | 10,665 | $596.1K | 0.06% | +1,370+14.7% | Added |
| Odyssean, LLC | 10,969 | $613.1K | 0.22% | +10,969 | New |
| Pictet Asset Management Holding SA | 11,110 | $620.9K | 0.00% | +705+6.8% | Added |
| Brave Asset Management Inc | 11,791 | $659.0K | 0.16% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 12,551 | $701.5K | 0.00% | +1,065+9.3% | Added |
| Northwest & Ethical Investments L.P. | 12,854 | $707.7K | 0.02% | +3,927+44.0% | Added |
| Summit Financial, LLC | 12,668 | $708.0K | 0.01% | +105+0.8% | Added |
| Barclays PLC | 12,962 | $724.4K | 0.00% | −93,535−87.8% | Reduced |
| StoneX Group Inc. | 13,437 | $751.0K | 0.04% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 14,500 | $810.4K | 0.00% | +500+3.6% | Added |
| F/M Investments LLC | 14,899 | $832.7K | 0.06% | −649−4.2% | Reduced |
| State of Tennessee, Treasury Department | 15,388 | $860.0K | 0.00% | −2,533−14.1% | Reduced |
| AQR Capital Management LLC | 15,545 | $868.8K | 0.00% | +381+2.5% | Added |
| Federation des caisses Desjardins du Quebec | 15,563 | $869.8K | 0.00% | −978−5.9% | Reduced |
| Keybank National Association | 15,848 | $885.7K | 0.00% | +70+0.4% | Added |
| Oregon Public Employees Retirement Fund | 15,953 | $891.6K | 0.01% | +100+0.6% | Added |
| Vanguard Investments Australia, Ltd. | 16,408 | $917.0K | 0.00% | +16,408 | New |
| State Board of Administration of Florida Retirement System | 16,991 | $949.6K | 0.00% | 00.0% | Unchanged |
| Formula Growth Ltd | 17,176 | $960.0K | 0.43% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 17,225 | $962.7K | 0.00% | +36+0.2% | Added |
| Arizona State Retirement System | 18,043 | $1.01M | 0.01% | −136−0.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 18,583 | $1.04M | 0.01% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 19,203 | $1.07M | 0.01% | −64−0.3% | Reduced |
| Sterling Capital Management LLC | 19,711 | $1.10M | 0.02% | −8,552−30.3% | Reduced |
| Jones Financial Companies LLLP | 19,871 | $1.12M | 0.00% | +19,268+3,195.4% | Added |
| Amalgamated Bank | 19,977 | $1.12M | 0.01% | −194−1.0% | Reduced |
| Westmount Partners, LLC | 20,000 | $1.12M | 0.28% | 00.0% | Unchanged |
| GWM Advisors LLC | 20,212 | $1.13M | 0.00% | +1,355+7.2% | Added |
| Allstate Corp | 22,263 | $1.24M | 0.01% | +22,263 | New |
| XTX Topco Ltd | 22,572 | $1.26M | 0.02% | +22,572 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 22,774 | $1.27M | 0.00% | +2,097+10.1% | Added |
| Zions Bancorporation, National Association | 22,834 | $1.28M | 0.08% | −5,762−20.1% | Reduced |
| Vontobel Holding Ltd. | 22,874 | $1.28M | 0.00% | +19,398+558.1% | Added |
| Citadel Advisors LLC | 23,679 | $1.32M | 0.00% | +23,679 | New |
| Portolan Capital Management, LLC | 23,728 | $1.33M | 0.07% | −93,778−79.8% | Reduced |
| Handelsbanken Fonder AB | 23,800 | $1.33M | 0.00% | 00.0% | Unchanged |
| Steel Peak Wealth Management LLC | 25,100 | $1.40M | 0.04% | 00.0% | Unchanged |
| Campbell Newman Asset Management Inc | 25,488 | $1.42M | 0.12% | +640+2.6% | Added |
| Expect Equity LLC | 26,632 | $1.49M | 1.16% | +8,300+45.3% | Added |
| Brookwood Investment Group LLC | 27,265 | $1.52M | 0.19% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 27,987 | $1.56M | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 28,293 | $1.58M | 0.00% | +28,293 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 29,415 | $1.64M | 0.00% | +5,268+21.8% | Added |
| B. Metzler seel. Sohn & Co. AG | 29,748 | $1.66M | 0.02% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 29,748 | $1.66M | 0.00% | −528−1.7% | Reduced |
| Intech Investment Management LLC | 30,053 | $1.68M | 0.02% | −12,931−30.1% | Reduced |
| Magnetar Financial LLC | 30,849 | $1.72M | 0.02% | +19,755+178.1% | Added |
| Louisiana State Employees Retirement System | 30,900 | $1.73M | 0.03% | −900−2.8% | Reduced |
| State of New Jersey Common Pension Fund D | 31,900 | $1.78M | 0.01% | +4,653+17.1% | Added |