Insider tradingForm 4
Seres Therapeutics, Inc. (MCRB) Insider Trading
4 open-market trades reported since Aug 18, 2026: 0 purchases worth $0 and 4 sales worth $2K.
By insider
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Eric D. Shaff | Director | 0 | $0 | 1 | $1K |
| Thomas Desrosier | See Remarks | 0 | $0 | 1 | $373 |
| Matthew R. Henn | See Remarks | 0 | $0 | 1 | $369 |
| Kelly Brady | See Remarks | 0 | $0 | 1 | $291 |
All trades
| Filed | Insider | Type | Value | 3 mo. after |
|---|---|---|---|---|
| Aug 18 | Eric D. ShaffDirector | ▼ SELL10b5-1 | $1K | |
| Aug 18 | Thomas DesrosierSee Remarks | ▼ SELL10b5-1 | $373 | |
| Aug 18 | Matthew R. HennSee Remarks | ▼ SELL10b5-1 | $369 | |
| Aug 18 | Kelly BradySee Remarks | ▼ SELL10b5-1 | $291 |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings