RDNT · Insider Trading
RadNet, Inc. Common Stock
Every open-market purchase and sale reported by RDNT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-22 | David L Swartz | Director | Sell | −2,699 | −$145.45K |
| 2026-06-18 | Cornelis Wesdorp | Pres & CEO, Digital Health | Sell | −4,750 | −$276.02K |
| 2026-06-18 | Howard G Berger | President, CEO | G | −90 | — |
| 2026-06-16 | Stephen M Forthuber | Pres & CEO-Eastern Operations | Sell | −44,067 | −$2.56M |
| 2026-06-03 | Gregory E. Spurlock | Director | A | +2,946 | — |
| 2026-06-03 | David L Swartz | Director | A | +2,946 | — |
| 2026-06-03 | Lawrence L Levitt | Director | A | +2,946 | — |
| 2026-06-03 | Laura Pastre Jacobs | Director | A | +2,946 | — |
| 2026-05-06 | Howard G Berger | President, CEO | M | +25,992 | +$484.49K |
| 2026-03-23 | Alma Gregory Sorensen | Chief Strategy Officer | MIXED | −22,000 | −$933.01K |
| 2026-03-18 | Alma Gregory Sorensen | Chief Strategy Officer | MIXED | −20,919 | −$1.30M |
| 2026-03-12 | Alma Gregory Sorensen | Chief Strategy Officer | M | +62,964 | — |
| 2026-03-05 | David Jeffrey Katz | EVP and Chief Legal Officer | A | +19,289 | — |
| 2026-03-05 | Mital Patel | EVP of Fin Planning, CAO | A | +20,667 | — |
| 2026-03-05 | Cornelis Wesdorp | Pres & CEO, Digital Health | A | +20,330 | — |
| 2026-03-05 | Michael N Murdock | EVP, Mergers and Acquisitions | A | +6,613 | — |
| 2026-03-05 | Alma Gregory Sorensen | EVP, Chief Science Officer | A | +16,533 | — |
| 2026-03-05 | Howard G Berger | President, CEO | A | +124,001 | — |
| 2026-03-05 | Stephen M Forthuber | Pres & COO-Eastern Operations | A | +22,045 | — |
| 2026-03-05 | Norman R Hames | Pres and COO-West Operations | A | +25,145 | — |
| 2026-03-05 | Mark Stolper | EVP, Chief Financial Officer | A | +18,228 | — |
| 2025-12-12 | David Jeffrey Katz | EVP and Chief Legal Officer | M | +3,396 | +$99.98K |
| 2025-12-12 | Mark Stolper | EVP, Chief Financial Officer | M | +35,703 | +$216.72K |
| 2025-12-09 | Stephen M Forthuber | Pres & COO-Eastern Operations | Sell | −45,088 | −$3.53M |
| 2025-12-05 | Mital Patel | EVP of Fin Planning, CAO | G | −630 | — |
| 2025-12-03 | Stephen M Forthuber | Pres & COO-Eastern Operations | M | +39,127 | +$237.50K |
| 2025-11-28 | Lawrence L Levitt | Director | G | −2,700 | — |
| 2025-11-21 | Howard G Berger | President, CEO | M | +129,961 | +$2.42M |
| 2025-11-19 | Mital Patel | EVP of Fin Planning, CAO | Sell | −50,000 | −$3.90M |
| 2025-11-17 | Michael N Murdock | EVP, Mergers and Acquisitions | G | −3,000 | — |
| 2025-09-18 | Mark Stolper | EVP, Chief Financial Officer | Sell | −35,000 | −$2.59M |
| 2025-09-17 | David Jeffrey Katz | EVP and Chief Legal Officer | Sell | −14,000 | −$1.04M |
| 2025-09-15 | Cornelis Wesdorp | Pres & CEO, Digital Health | Sell | −500 | −$36.06K |
| 2025-09-12 | David Jeffrey Katz | EVP and Chief Legal Officer | G | −4,593 | — |
| 2025-09-12 | Norman R Hames | Pres and COO-West Operations | Sell | −10,000 | −$727.40K |
| 2025-09-10 | Cornelis Wesdorp | Pres & CEO, Digital Health | Sell | −500 | −$35.99K |
| 2025-08-29 | Norman R Hames | Pres and COO-West Operations | Sell | −5,000 | −$355.50K |
| 2025-08-21 | Cornelis Wesdorp | Pres & CEO, Digital Health | Sell | −1,500 | −$100.47K |
| 2025-08-21 | Ranjan Jayanathan | Chief Information Officer | Sell | −65,598 | −$4.43M |
| 2025-08-15 | David Jeffrey Katz | EVP and Chief Legal Officer | Sell | −17,000 | −$1.16M |
| 2025-06-18 | Alma Gregory Sorensen | EVP, Chief Science Officer | G | −5,600 | — |
| 2025-06-11 | Gregory E. Spurlock | Director | A | +2,699 | — |
| 2025-06-11 | Laura Pastre Jacobs | Director | A | +2,699 | — |
| 2025-06-11 | David L Swartz | Director | A | +2,699 | — |
| 2025-06-11 | Lawrence L Levitt | Director | A | +2,699 | — |
| 2025-06-06 | Michael N Murdock | EVP, Mergers and Acquisitions | Sell | −11,132 | −$646.21K |
| 2025-06-03 | Alma Gregory Sorensen | EVP, Chief Science Officer | A | +10,436 | — |
| 2025-05-27 | Alma Gregory Sorensen | EVP, Chief Science Officer | Sell | −100,000 | −$5.67M |
| 2025-05-20 | Lawrence L Levitt | Director | Sell | −5,000 | −$305.45K |
| 2025-05-20 | Stephen M Forthuber | Pres & COO-Eastern Operations | MIXED | −16,060 | −$1.14M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Alma Gregory Sorensen | Chief Strategy Officer | 1,230,797 | $85.26M |
| Howard G Berger | President, CEO | 518,315 | $35.90M |
| Stephen M Forthuber | Pres & CEO-Eastern Operations | 507,199 | $35.13M |
| Norman R Hames | Pres and COO-West Operations | 284,217 | $19.69M |
| David L Swartz | Director | 214,032 | $14.83M |
| Mital Patel | EVP of Fin Planning, CAO | 200,175 | $13.87M |
| Lawrence L Levitt | Director | 167,902 | $11.63M |
| Ranjan Jayanathan | Chief Information Officer | 138,198 | $9.57M |
| Mark Stolper | EVP, Chief Financial Officer | 121,943 | $8.45M |
| David Jeffrey Katz | EVP and Chief Legal Officer | 90,866 | $6.29M |
| Cornelis Wesdorp | Pres & CEO, Digital Health | 69,075 | $4.78M |
| Michael N Murdock | EVP, Mergers and Acquisitions | 46,697 | $3.23M |
| Laura Pastre Jacobs | Director | 29,953 | $2.07M |
| Gregory E. Spurlock | Director | 8,236 | $570.51K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the RDNT quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.