Companies / Seres Therapeutics, Inc. / Activity
Activity — Seres Therapeutics, Inc.
21 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Feb 15, 2026 | Shaff Eric D. Director | Sell | Common Stock | $2.2K | -259 -2.19% | 11,577 0.12% of shares | low |
| Feb 15, 2026 | Henn Matthew R Executive | Sell | Common Stock | $754 | -89 -1.15% | 7,677 0.08% of shares | low |
| Feb 15, 2026 | DesRosier Thomas Executive | Sell | Common Stock | $661 | -78 -0.99% | 7,789 0.08% of shares | low |
| Feb 15, 2026 | Young Teresa L. Executive | Sell | Common Stock | $635 | -75 -0.87% | 8,557 0.09% of shares | low |
| Mar 4, 2026 | Thorell Marella Executive | Grant | Stock Option (right to buy) | — | +23K | 22,500 0.23% of shares | low |
| Feb 15, 2026 | Young Teresa L. Executive | Exercise | Restricted Stock Units | — | -98 -11.16% | 780 <0.01% of shares | low |
| Feb 15, 2026 | Young Teresa L. Executive | Exercise | Restricted Stock Units | — | -133 -20.03% | 531 <0.01% of shares | low |
| Feb 15, 2026 | Young Teresa L. Executive | Exercise | Common Stock | — | +231 +2.75% | 8,632 0.09% of shares | low |
| Mar 4, 2026 | Henn Matthew R Executive | Grant | Stock Option (right to buy) | — | +75K | 75,000 0.75% of shares | low |
| Feb 15, 2026 | Henn Matthew R Executive | Exercise | Restricted Stock Units | — | -98 -11.16% | 780 <0.01% of shares | low |
| Feb 15, 2026 | Henn Matthew R Executive | Exercise | Restricted Stock Units | — | -141 -20.03% | 563 <0.01% of shares | low |
| Feb 15, 2026 | Henn Matthew R Executive | Exercise | Common Stock | — | +239 +3.18% | 7,766 0.08% of shares | low |
| Feb 15, 2026 | Shaff Eric D. Director | Exercise | Restricted Stock Units | — | -333 -11.14% | 2,656 0.03% of shares | low |
| Feb 15, 2026 | Shaff Eric D. Director | Exercise | Restricted Stock Units | — | -391 -20.00% | 1,564 0.02% of shares | low |
| Feb 15, 2026 | Shaff Eric D. Director | Exercise | Common Stock | — | +723 +6.51% | 11,836 0.12% of shares | low |
| Mar 4, 2026 | Brady Kelly Executive | Grant | Stock Option (right to buy) | — | +56K | 56,250 0.57% of shares | low |
| Mar 4, 2026 | Kender Richard N Executive | Grant | Stock Option (right to buy) | — | +150K | 150,000 1.51% of shares | low |
| Mar 4, 2026 | DesRosier Thomas Executive | Grant | Stock Option (right to buy) | — | +23K | 22,500 0.23% of shares | low |
| Feb 15, 2026 | DesRosier Thomas Executive | Exercise | Restricted Stock Units | — | -111 -11.09% | 890 <0.01% of shares | low |
| Feb 15, 2026 | DesRosier Thomas Executive | Exercise | Restricted Stock Units | — | -133 -20.03% | 531 <0.01% of shares | low |
| Feb 15, 2026 | DesRosier Thomas Executive | Exercise | Common Stock | — | +244 +3.20% | 7,867 0.08% of shares | low |