Madryn Asset Management, LP is 10% Owner at Neuronetics, Inc. (STIM). They have made 2 open-market trades across 2 companies since 2024, most recently 2026-03-26.
CIK 0001787423
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.
1 open-market purchase totalling $1.5M since 2024, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VERO | 37,510,186 | $42.8M |
| STIM | 17,044,940 | $32.2M |
| Total | $75.0M |
Shares reported on the most recent Form 4, priced at the 2026-04-01 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.