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 |
|---|---|---|---|---|---|
| Sumitomo Mitsui DS Asset Management Company, Ltd | 8,033 | $449.0K | 0.00% | +540+7.2% | Added |
| Sectoral Asset Management Inc | 7,999 | $447.1K | 0.37% | −3,001−27.3% | Reduced |
| Tiaa-Cref Individual & Institutional Services, LLC | 7,991 | $446.6K | 0.00% | +7,991 | New |
| Quantinno Capital Management LP | 7,978 | $445.9K | 0.00% | +1,515+23.4% | Added |
| Mutual of America Capital Management LLC | 7,971 | $445.5K | 0.01% | +35+0.4% | Added |
| Tower Research Capital LLC (TRC) | 7,590 | $424.2K | 0.01% | +4,131+119.4% | Added |
| Bank of Montreal | 7,517 | $420.1K | 0.00% | +1,960+35.3% | Added |
| The PNC Financial Services Group, Inc. | 7,392 | $413.1K | 0.00% | +207+2.9% | Added |
| Virtu Financial LLC | 7,218 | $403.0K | 0.02% | +7,218 | New |
| Mercer Global Advisors Inc | 6,968 | $389.4K | 0.00% | −110−1.6% | Reduced |
| Stratos Wealth Partners, LTD. | 6,931 | $387.4K | 0.00% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 6,889 | $385.0K | 0.01% | +2,005+41.1% | Added |
| Mount Yale Investment Advisors, LLC | 6,780 | $378.9K | 0.01% | +6,780 | New |
| Wealth Enhancement Advisory Services, LLC | 6,577 | $360.4K | 0.00% | −6,443−49.5% | Reduced |
| Cetera Investment Advisers | 6,447 | $360.3K | 0.00% | +262+4.2% | Added |
| Samalin Investment Counsel, LLC | 6,440 | $359.9K | 0.13% | 00.0% | Unchanged |
| Xponance, Inc. | 6,400 | $357.7K | 0.00% | +1,028+19.1% | Added |
| Oppenheimer Asset Management Inc. | 6,257 | $349.7K | 0.00% | −1,701−21.4% | Reduced |
| New Age Alpha Advisors, LLC | 6,034 | $337.2K | 0.02% | −158−2.6% | Reduced |
| CI Private Wealth, LLC | 5,690 | $316.9K | 0.00% | −369−6.1% | Reduced |
| Public Employees Retirement Association of Colorado | 5,615 | $314.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 5,545 | $309.9K | 0.01% | 00.0% | Unchanged |
| Yorktown Management & Research Co Inc | 5,350 | $299.0K | 0.25% | 00.0% | Unchanged |
| Impact Capital Partners LLC | 5,099 | $285.0K | 0.09% | +10+0.2% | Added |
| Quadrant Capital Group LLC | 5,059 | $282.7K | 0.01% | +11+0.2% | Added |
| Crossmark Global Holdings, Inc. | 5,052 | $282.4K | 0.00% | +4+0.1% | Added |
| JustInvest LLC | 5,009 | $280.0K | 0.00% | +1,168+30.4% | Added |
| Two Sigma Investments, LP | 4,856 | $271.4K | 0.00% | −25,799−84.2% | Reduced |
| Ground Swell Capital, LLC | 4,704 | $262.9K | 0.52% | +4,704 | New |
| Glenmede Trust Co NA | 4,703 | $262.9K | 0.00% | +1,749+59.2% | Added |
| Beverly Hills Private Wealth, LLC | 4,700 | $262.7K | 0.04% | 00.0% | Unchanged |
| Amundi | 4,667 | $260.8K | 0.00% | +4,667 | New |
| Truist Financial Corp | 4,659 | $260.4K | 0.00% | −3,591−43.5% | Reduced |
| CIBC World Markets Inc. | 4,281 | $239.3K | 0.00% | +17+0.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 4,274 | $238.9K | 0.00% | +4,274 | New |
| 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 |
| Spears Abacus Advisors LLC | 4,100 | $229.1K | 0.00% | 00.0% | Unchanged |
| Excalibur Management Corp | 4,000 | $223.6K | 0.08% | 00.0% | Unchanged |
| Everence Capital Management Inc | 3,960 | $221.0K | 0.01% | 00.0% | Unchanged |
| DnB Asset Management AS | 3,859 | $215.7K | 0.00% | +3,859 | New |
| Ensign Peak Advisors, Inc | 3,856 | $215.5K | 0.00% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 3,813 | $213.1K | 0.00% | −61−1.6% | Reduced |
| Sanctuary Advisors, LLC | 3,758 | $210.0K | 0.00% | −345−8.4% | Reduced |
| O'Shaughnessy Asset Management, LLC | 3,721 | $208.0K | 0.00% | −2,966−44.4% | Reduced |
| STRS Ohio | 3,700 | $206.8K | 0.00% | −1,000−21.3% | Reduced |
| CIBC Bancorp USA Inc. | 3,653 | $204.2K | 0.00% | +3,653 | New |
| NewEdge Wealth, LLC | 3,612 | $201.9K | 0.00% | +23+0.6% | Added |
| Walleye Capital LLC | 3,468 | $193.8K | 0.00% | +2,577+289.2% | Added |
| Simplex Trading, LLC | 3,284 | $183.5K | 0.01% | −4,265−56.5% | Reduced |
| State of Wyoming | 3,114 | $174.0K | 0.02% | −80−2.5% | Reduced |
| Advisor Group Holdings, Inc. | 3,045 | $170.2K | 0.00% | +35+1.2% | Added |
| Wolff Wiese Magana LLC | 2,986 | $166.9K | 0.09% | +124+4.3% | Added |
| Assetmark, Inc | 2,863 | $160.0K | 0.00% | −88−3.0% | Reduced |
| GAMMA Investing LLC | 2,345 | $131.1K | 0.01% | −263−10.1% | Reduced |
| Bayforest Capital Ltd | 2,280 | $127.4K | 0.14% | +2,280 | New |
| KBC Group NV | 2,101 | $117.0K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 2,043 | $114.2K | 0.01% | +2,000+4,651.2% | Added |
| Pinnacle Wealth Planning Services, Inc. | 1,860 | $104.0K | 0.01% | +22+1.2% | Added |
| Nisa Investment Advisors, LLC | 1,791 | $100.1K | 0.00% | +354+24.6% | Added |
| IFP Advisors, Inc | 1,368 | $76.5K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 1,114 | $62.3K | 0.00% | +495+80.0% | Added |
| Highline Wealth Partners LLC | 979 | $54.7K | 0.01% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 977 | $54.6K | 0.01% | +977 | New |
| Hantz Financial Services, Inc. | 886 | $50.0K | 0.00% | +583+192.4% | Added |
| CWM, LLC | 881 | $49.2K | 0.00% | +393+80.5% | Added |
| Salomon & Ludwin, LLC | 879 | $48.2K | 0.00% | +402+84.3% | Added |
| Eurizon Capital SGR S.p.A. | 767 | $43.0K | 0.00% | +267+53.4% | Added |
| Farther Finance Advisors, LLC | 767 | $42.4K | 0.00% | +206+36.7% | Added |
| Harbour Investments, Inc. | 619 | $34.6K | 0.00% | +33+5.6% | Added |
| Smartleaf Asset Management LLC | 563 | $31.4K | 0.00% | −1,023−64.5% | Reduced |
| Kemnay Advisory Services Inc. | 448 | $25.0K | 0.00% | +181+67.8% | Added |
| TD Waterhouse Canada Inc. | 449 | $24.7K | 0.00% | +414+1,182.9% | Added |
| Signaturefd, LLC | 441 | $24.6K | 0.00% | −78−15.0% | Reduced |
| Group One Trading, L.P. | 436 | $24.4K | 0.00% | +436 | New |
| Parkside Financial Bank & Trust | 349 | $19.5K | 0.00% | +88+33.7% | Added |
| Umb Bank N A | 327 | $18.3K | 0.00% | −124−27.5% | Reduced |
| Public Employees Retirement System of Ohio | 305 | $17.0K | 0.00% | +18+6.3% | Added |
| Northwestern Mutual Wealth Management Co | 300 | $16.8K | 0.00% | −33−9.9% | Reduced |
| Steward Partners Investment Advisory, LLC | 299 | $16.7K | 0.00% | −78−20.7% | Reduced |
| Golden State Equity Partners | 293 | $16.4K | 0.00% | +293 | New |
| Clear Street Markets LLC | 287 | $16.0K | 0.01% | +287 | New |
| Huntington National Bank | 284 | $15.9K | 0.00% | +33+13.1% | Added |
| Los Angeles Capital Management LLC | 275 | $15.4K | 0.00% | −3,361−92.4% | Reduced |
| Eastern Bank | 251 | $14.0K | 0.00% | 00.0% | Unchanged |
| Community Financial Services Group, LLC | 250 | $13.8K | 0.00% | +250 | New |
| Twin Tree Management, LP | 241 | $13.5K | 0.00% | +241 | New |
| Allworth Financial LP | 238 | $13.3K | 0.00% | −169−41.5% | Reduced |
| Twin Peaks Wealth Advisors, LLC | 180 | $10.1K | 0.00% | +180 | New |
| Sound Income Strategies, LLC | 162 | $8.96K | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 140 | $7.82K | 0.00% | +32+29.6% | Added |
| Aster Capital Management (DIFC) Ltd | 155 | $7.71K | 0.00% | +155 | New |
| SJS Investment Consulting Inc. | 136 | $7.60K | 0.00% | +131+2,620.0% | Added |
| Basecamp Wealth Advisors LLC | 131 | $7.32K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 110 | $6.15K | 0.00% | −9−7.6% | Reduced |
| Advisory Services Network, LLC | 103 | $5.76K | 0.00% | +103 | New |
| Rothschild Investment LLC | 100 | $5.59K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 90 | $5.03K | 0.00% | +14+18.4% | Added |
| Covestor Ltd | 90 | $5.00K | 0.00% | −88−49.4% | Reduced |
| Massmutual Trust Co FSB | 80 | $4.47K | 0.00% | +6+8.1% | Added |