CIK 0001609809 · Non-accelerated filer<br>Smaller reporting company
Seres Therapeutics, Inc.
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- MCRB
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 274326290
- Phone
- 617 945 9626
- Business address
- 200 SIDNEY STREET, CAMBRIDGE, MA, 02139
- Former names
- Seres Therapeutics, Inc., Seres Health, Inc.
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $2,230
- in 4 filings, $2K under 10b5-1 plans
Net −$2,230. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2025-11-15 | Shaff Eric D. Director | Option exercise 10b5-1 | +390 | 10,999 | ||
| 2025-11-15 | Shaff Eric D. Director | Option exercise 10b5-1 | +331 | 11,330 | ||
| 2025-11-15 | Shaff Eric D. Director | Sale 10b5-1 | −217 | $17.30 | $4K | 11,113 |
| 2025-11-15 | Shaff Eric D. Director | Option exercise · Restricted Stock Units 10b5-1 | −390 | 1,954 | ||
| 2025-11-15 | Shaff Eric D. Director | Option exercise · Restricted Stock Units 10b5-1 | −331 | 2,989 | ||
| 2025-11-15 | Henn Matthew R See Remarks | Option exercise 10b5-1 | +3,998 | 8,546 | ||
| 2025-11-15 | Henn Matthew R See Remarks | Option exercise 10b5-1 | +140 | 8,686 | ||
| 2025-11-15 | Henn Matthew R See Remarks | Option exercise 10b5-1 | +98 | 8,784 | ||
| 2025-11-15 | Henn Matthew R See Remarks | Sale 10b5-1 | −1,257 | $17.30 | $22K | 7,527 |
| 2025-11-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −3,998 | 0 | ||
| 2025-11-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −140 | 704 | ||
| 2025-11-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −98 | 878 | ||
| 2025-09-26 | Young Teresa L. See Remarks | Grant or award · Restricted Stock Units | +3,998 | 3,998 | ||
| 2025-09-26 | Henn Matthew R See Remarks | Grant or award · Restricted Stock Units | +3,998 | 3,998 | ||
| 2025-08-18 | DesRosier Thomas See Remarks | Sale 10b5-1 | −76 | $16.65 | $1K | 7,455 |
| 2025-08-18 | Young Teresa L. See Remarks | Sale 10b5-1 | −59 | $16.65 | $982 | 5,215 |
| 2025-08-18 | Shaff Eric D. Director | Sale 10b5-1 | −217 | $16.65 | $4K | 10,609 |
| 2025-08-18 | Henn Matthew R See Remarks | Sale 10b5-1 | −73 | $16.65 | $1K | 4,548 |
| 2025-08-15 | DesRosier Thomas See Remarks | Option exercise 10b5-1 | +133 | 7,420 | ||
| 2025-08-15 | DesRosier Thomas See Remarks | Option exercise 10b5-1 | +111 | 7,531 |
Page 5 of 13 · 254 trades