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 $5.04B in total; Soros Fund Management is the only superinvestor holding it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −9 vs. previous quarter
- 328
- 13F valueReported value at the end of Q2 2026
- $5.04B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding RDNT, Q2 2026
1 superinvestor reports holding RadNet, Inc. on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
Open-market purchases and sales by RadNet, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 22, 2026 (view filing) | Jun 18 | 4 days | Swartz David LDirector | SSale | −2.70K | $53.89 | −$145.4K | −1.5%177.0K after | |
| Jun 18, 2026 (view filing) | Jun 16 | 2 days | Wesdorp CornelisPres & CEO, Digital Health | SSale | −4.75K | $58.11 | −$276.0K | −6.4%69.1K after | |
| Jun 16, 2026 (view filing) | Jun 15 | 1 day | Forthuber Stephen MPres & CEO-Eastern Operations | SSale | −44.1K | $58.16 | −$2.56M | −8.0%507.2K after | 2 lots |
| Mar 23, 2026 (view filing) | Mar 19 | 4 days | Sorenson Alma GregoryChief Strategy Officer | SSale | −15.0K | $62.20 | −$933.0K | −1.2%1.21M after | 3 lots |
| Mar 18, 2026 (view filing) | Mar 18 | Same day | Sorenson Alma GregoryChief Strategy Officer | SSale | −15.0K | $62.15 | −$932.3K | −1.2%1.22M after | 2 lots |
| Dec 9, 2025 (view filing) | Dec 5 | 4 days | Forthuber Stephen MPres & COO-Eastern Operations | SSale | −45.1K | $78.33 | −$3.53M | −7.9%529.2K after | 3 lots |
| Nov 19, 2025 (view filing) | Nov 17-19 | 2 days | Patel MitalEVP of Fin Planning, CAO | SSale | −50.0K | $78.05 | −$3.90M | −21.7%180.1K after | 3 lots |
| Sep 18, 2025 (view filing) | Sep 16 | 2 days | Stolper MarkEVP, Chief Financial Officer | SSale | −35.0K | $73.89 | −$2.59M | −34.0%68.0K after | |
| Sep 17, 2025 (view filing) | Sep 16 | 1 day | Katz David JeffreyEVP and Chief Legal Officer | SSale | −14.0K | $74.44 | −$1.04M | −17.0%68.2K after | |
| Sep 15, 2025 (view filing) | Sep 11 | 4 days | Wesdorp CornelisPres & CEO, Digital Health | SSale | −500 | $72.13 | −$36.1K | −0.9%53.5K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in RadNet, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,957,808 | $675.8M | 0.01% | +922,074+9.2% | Added |
| RTW Investments, LP | 4,846,958 | $298.9M | 2.55% | +561,958+13.1% | Added |
| Price T Rowe Associates Inc | 4,501,195 | $277.6M | 0.03% | +346,332+8.3% | Added |
| Vanguard Portfolio Management LLC | 4,066,931 | $250.8M | 0.01% | +167,804+4.3% | Added |
| Vanguard Capital Management LLC | 3,193,565 | $196.9M | 0.00% | +82,553+2.7% | Added |
| Beck Mack & Oliver LLC | 3,163,592 | $195.1M | 3.80% | −2,600−0.1% | Reduced |
| State Street Corp | 2,842,457 | $175.2M | 0.01% | +190,859+7.2% | Added |
| Geode Capital Management, LLC | 1,858,508 | $114.6M | 0.01% | +134,901+7.8% | Added |
| Invesco Ltd. | 1,641,292 | $101.2M | 0.01% | +7,797+0.5% | Added |
| American Century Companies Inc | 1,618,424 | $99.8M | 0.04% | +716,232+79.4% | Added |