AlphaYouED
Insider selling
Eric D. Shaff sold $1K of Seres Therapeutics, Inc. (MCRB) stock
Eric D. Shaff, Dir of Seres Therapeutics, Inc. (MCRB), sold 263 shares of MCRB stock worth $1K, per an SEC Form 4 filed Aug 18, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Aug 15, 2026, 3 days before it was made public.
MCRB has moved -11.5% since the trade date, from $4.54 to $4.02 (Sep 22, 2026 close).
- Traded
- Aug 15, 2026
- Disclosed
- Aug 18, 2026
- Filing delay
- 3 days
- Price since
- -11.5%
- Role
- Dir
- Source
- SEC Form 4
More MCRB insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.