Eric D. Shaff, Director at Seres Therapeutics, Inc. (MCRB), sold 259 shares at $7.53 ($2K) on 2026-05-18, disclosed to the SEC on 2026-05-19.
Scheduled sale ($2k) by Director under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| Filing → |
| MCRB | SELL | 2025-11-18 | $4K | — | Filing → |
| MCRB | SELL | 2025-08-19 | $4K | — | Filing → |
| MCRB | SELL | 2025-05-19 | $2K | — | Filing → |