MCRB Insider Trading Activity and SEC Form 4 Filings
MCRB insider trading summary
Over the past 12 months, insiders at Seres Therapeutics, Inc. (MCRB) reported 13 sales worth $53K by 5 insiders and no open-market purchases on SEC Form 4. Net insider selling was $53K.
Latest MCRB insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 17, 2026 | Kelly Brady | See Remarks | Sell | $291 (64 @ $4.55) |
| May 18, 2026 | Eric D. Shaff | Insider | Sell | $2K (259 @ $7.53) |
| May 18, 2026 | Kelly Brady | See Remarks | Sell | $444 (59 @ $7.53) |
| May 18, 2026 | Matthew R Henn | See Remarks | Sell | $580 (77 @ $7.53) |
| May 18, 2026 | Thomas DesRosier | See Remarks | Sell | $595 (79 @ $7.53) |
| Feb 15, 2026 | Teresa L. Young | See Remarks | Sell | $635 (75 @ $8.47) |
| Feb 15, 2026 | Thomas DesRosier | See Remarks | Sell | $661 (78 @ $8.47) |
| Feb 15, 2026 | Matthew R Henn | See Remarks | Sell | $754 (89 @ $8.47) |
| Feb 15, 2026 | Eric D. Shaff | Insider | Sell | $2K (259 @ $8.47) |
| Nov 15, 2025 | Thomas DesRosier | See Remarks | Sell | $1K (76 @ $17.30) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.