Seres Therapeutics, Inc. (MCRB) has 64 open-market insider trades by 13 insiders since 2016. Over the last six months insiders net sold $444. The most active filer is Roger Pomerantz, CEO & President.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Noubar Afeyan | 10% Owner | — | 2 | $65.1M | 2022-07-05 |
| Flagship Ventures 2007 General Partner LLC | Dir10% Owner | — | 1 | $55.2M | 2016-05-25 |
| Roger Pomerantz | CEOPres | — | 21 | $26.6M | 2018-09-07 |
| John G. Aunins | CTOVP | — | 18 | $3.9M | 2020-01-26 |
| David N. Cook | CSOVP | — | 5 | $2.6M | 2019-01-26 |
| Matthew R. Henn | — | — | 1 | $2.5M | 2025-02-18 |
| Michele Trucksis | VP | — | 3 | $1.5M | 2018-01-26 |
| Eric D. Shaff | CFOVP | — | 5 | $798K | 2022-07-05 |
| Thomas DesRosier | — | — | 3 | $70K | 2026-08-17 |
| Eric D. Shaff | Dir | — | 2 | $56K | 2026-08-17 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Kelly Brady | — | Sell | $291 | 2026-08-17 |
| Eric D. Shaff | Director | Sell | $1K | 2026-08-17 |
| Matthew R. Henn | — | Sell | $369 | 2026-08-17 |
| Thomas DesRosier | — | Sell | $373 | 2026-08-17 |
| Matthew R. Henn | — | Sell | $580 | 2026-05-18 |
| Kelly Brady | — | Sell | $444 | 2026-05-18 |
Companies that share insiders with MCRB, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Thomas DesRosier | — | Sell | $595 | 2026-05-18 |
| Eric D. Shaff | Director | Sell | $2K | 2026-05-18 |
| Teresa L. Young | — | Sell | $635 | 2026-02-15 |
| Thomas DesRosier | — | Sell | $661 | 2026-02-15 |
| Matthew R. Henn | — | Sell | $754 | 2026-02-15 |
| Eric D. Shaff | Director | Sell | $2K | 2026-02-15 |
| Thomas DesRosier | — | Sell | $1K | 2025-11-15 |
| Eric D. Shaff | Director | Sell | $4K | 2025-11-15 |
| Matthew R. Henn | — | Sell | $22K | 2025-11-15 |