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 |
|---|---|---|---|---|---|---|
| 2026-08-17 | Brady Kelly See Remarks | Sale 10b5-1 | −64 | $4.55 | $291 | 8,679 |
| 2026-08-17 | Shaff Eric D. Director | Sale 10b5-1 | −263 | $4.55 | $1K | 12,499 |
| 2026-08-17 | Henn Matthew R See Remarks | Sale 10b5-1 | −81 | $4.55 | $369 | 7,995 |
| 2026-08-17 | DesRosier Thomas See Remarks | Sale 10b5-1 | −82 | $4.55 | $373 | 8,117 |
| 2026-08-15 | Brady Kelly See Remarks | Option exercise 10b5-1 | +181 | 8,743 | ||
| 2026-08-15 | Brady Kelly See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −90 | 179 | ||
| 2026-08-15 | Brady Kelly See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −91 | 548 | ||
| 2026-08-15 | Shaff Eric D. Director | Option exercise 10b5-1 | +722 | 12,762 | ||
| 2026-08-15 | Shaff Eric D. Director | Option exercise · Restricted Stock Units 10b5-1 | −390 | 783 | ||
| 2026-08-15 | Shaff Eric D. Director | Option exercise · Restricted Stock Units 10b5-1 | −332 | 1,993 | ||
| 2026-08-15 | Henn Matthew R See Remarks | Option exercise 10b5-1 | +238 | 8,076 | ||
| 2026-08-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −140 | 282 | ||
| 2026-08-15 | Henn Matthew R See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −98 | 585 | ||
| 2026-08-15 | DesRosier Thomas See Remarks | Option exercise 10b5-1 | +245 | 8,199 | ||
| 2026-08-15 | DesRosier Thomas See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −133 | 265 | ||
| 2026-08-15 | DesRosier Thomas See Remarks | Option exercise · Restricted Stock Units 10b5-1 | −112 | 667 | ||
| 2026-07-08 | Graves Kurt Director | Grant or award · Stock Option (right to buy) | +6,500 | 6,500 | ||
| 2026-07-08 | Rosiello Robert L. Director | Grant or award · Stock Option (right to buy) | +6,500 | 6,500 | ||
| 2026-07-08 | Kender Richard N See Remarks | Grant or award · Stock Option (right to buy) | +50,000 | 50,000 | ||
| 2026-07-08 | Berenson Stephen Director | Grant or award · Stock Option (right to buy) | +6,500 | 6,500 |
Page 1 of 13 · 254 trades