Insiders / Henn Matthew R
Henn Matthew R
CIK 1767321personinsider
Companies
1
First seen
Feb 18, 2026
Last activity
Mar 6, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Seres Therapeutics, Inc. · MCRB | 7,677 | — |
All securities held
3 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Seres Therapeutics, Inc. | Common Stock | 7,677 |
| Seres Therapeutics, Inc. | Stock Option (right to buy)Derivative | 75,000 |
| Seres Therapeutics, Inc. | Restricted Stock UnitsDerivative | 780 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 15, 2026 | Sell | MCRB Seres Therapeutics, Inc. Common Stock | $754 | -89 -1.15% | 7,677 0.08% of shares | low |
| Mar 4, 2026 | Grant | MCRB Seres Therapeutics, Inc. Stock Option (right to buy) | — | +75K | 75,000 0.75% of shares | low |
| Feb 15, 2026 | Exercise | MCRB Seres Therapeutics, Inc. Restricted Stock Units | — | -98 -11.16% | 780 <0.01% of shares | low |
| Feb 15, 2026 | Exercise | MCRB Seres Therapeutics, Inc. Restricted Stock Units | — | -141 -20.03% | 563 <0.01% of shares | low |
| Feb 15, 2026 | Exercise | MCRB Seres Therapeutics, Inc. Common Stock | — | +239 +3.18% | 7,766 0.08% of shares | low |