David L. Swartz is Director at RadNet, Inc. (RDNT). They have made 7 open-market trades across 2 companies since 2006, most recently 2026-06-18.
CIK 0001282406
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
2 open-market purchases totalling $348K since 2006, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| RDNT | 177,013 | $12.2M |
| RDNT.OB | 10,000 | — |
| Total | $12.2M |
Shares reported on the most recent Form 4, priced at the 2026-06-22 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RDNT | SELL | 2026-06-18 | 2026-06-22 | $53.89 | $145K | +21.5% | +4.7% | +28.3% |
| RDNT | SELL | 2025-03-07 | 2025-03-11 | $50.84 | $1.3M | -0.5% | +7.1% | +19.3% |
| RDNT | SELL | 2024-06-10 | 2024-06-12 | $60.75 | $3.0M | -5.9% | +0.2% | -1.6% |
| RDNT | BUY | 2021-08-11 | 2021-08-13 | $33.47 | $303K | -1.4% | -7.9% | +2.9% |
| RDNT | SELL | 2019-03-18 | 2019-03-22 | $14.72 | $340K | +0.2% | -5.9% | +3.2% |
| RDNT | SELL | 2017-09-07 | 2017-09-07 | $10.98 | $275K | +0.0% | +3.2% | -11.8% |
| RDNT.OB | BUY | 2006-12-28 | 2007-01-03 | $4.59 | $46K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.