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 |
|---|---|---|---|---|---|---|
| 2025-08-15 | DesRosier Thomas See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −133 | 796 | ||
| 2025-08-15 | DesRosier Thomas See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −111 | 1,113 | ||
| 2025-08-15 | Young Teresa L. See Remarks | Option exercise 10b5-1 | +133 | 5,177 | ||
| 2025-08-15 | Young Teresa L. See Remarks | Option exercise 10b5-1 | +97 | 5,274 | ||
| 2025-08-15 | Young Teresa L. See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −133 | 796 | ||
| 2025-08-15 | Young Teresa L. See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −97 | 976 | ||
| 2025-08-15 | Shaff Eric D. Director | Option exercise 10b5-1 | +391 | 10,493 | ||
| 2025-08-15 | Shaff Eric D. Director | Option exercise 10b5-1 | +333 | 10,826 | ||
| 2025-08-15 | Shaff Eric D. Director | Option exercise · Restricted Stock Units 10b5-1 | −391 | 2,344 | ||
| 2025-08-15 | Shaff Eric D. Director | Option exercise · Restricted Stock Units 10b5-1 | −333 | 3,320 | ||
| 2025-08-15 | Henn Matthew R See Remarks | Option exercise 10b5-1 | +141 | 4,524 | ||
| 2025-08-15 | Henn Matthew R See Remarks | Option exercise 10b5-1 | +97 | 4,621 | ||
| 2025-08-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −141 | 844 | ||
| 2025-08-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −97 | 976 | ||
| 2025-08-05 | Rosiello Robert L. Director | Grant or award · Stock Option (right to buy) | +10,000 | 10,000 | ||
| 2025-07-01 | Ausiello Dennis A Director | Grant or award · Stock Option (right to buy) | +6,452 | 6,452 | ||
| 2025-07-01 | Berenson Stephen Director | Grant or award · Stock Option (right to buy) | +11,470 | 11,470 | ||
| 2025-07-01 | Fraser Claire Director | Grant or award · Stock Option (right to buy) | +6,452 | 6,452 | ||
| 2025-05-16 | Young Teresa L. See Remarks | Sale 10b5-1 | −63 | $7.28 | $459 | 5,044 |
| 2025-05-16 | Shaff Eric D. CEO and President | Sale 10b5-1 | −220 | $7.28 | $2K | 10,102 |
Page 6 of 13 · 254 trades