Seres Therapeutics, Inc.
MCRB- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001609809
In the last 90 days, Seres Therapeutics, Inc. insiders filed 0 open-market purchases and 4 sales; 35 institutions reported holding it in 13F filings for Q2 2026, worth $17.9M in total; no superinvestor holds it.
Q3 2025 vs. Q2 2025
How the institutions holding Seres Therapeutics, Inc. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 33 | 32 | −1 |
| Shares | 2.28M | 2.13M | −159.1K (−7.0%) |
| Value | $25.4M | $40.9M | +$15.5M (+61.1%) |
New holders (9)
Institutions that held Seres Therapeutics, Inc. at the end of Q3 2025 but not at the end of Q2 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Citadel Advisors LLC | 30,885 | $594.2K | 0.00% |
| Schonfeld Strategic Advisors LLC | 28,942 | $556.8K | 0.00% |
| J. Goldman & Co LP | 27,000 | $519.5K | 0.02% |
| Invesco Ltd. | 10,442 | $200.9K | 0.00% |
| Simplex Trading, LLC | 2,807 | $54.0K | 0.00% |
| Barclays PLC | 1,408 | $27.1K | 0.00% |
| Sound Income Strategies, LLC | 8 | $156 | 0.00% |
| Federation des caisses Desjardins du Quebec | 3 | $58 | 0.00% |
| SRS Capital Advisors, Inc. | 2 | $38 | 0.00% |
Sold out (10)
Institutions that held Seres Therapeutics, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.
| Institution | Shares, Q2 2025 | Value, Q2 2025 |
|---|---|---|
| XTX Topco Ltd | 22,417 | $249.1K |
| Squarepoint Ops LLC | 20,908 | $232.3K |
| Tang Capital Management LLC | 13,921 | $154.7K |
| Bridgeway Capital Management, LLC | 12,500 | $138.9K |
| Susquehanna International Group, LLP | 11,684 | $129.8K |
| Group One Trading, L.P. | 1,161 | $12.9K |
| Atlantic Union Bankshares Corp | 411 | $4.57K |
| Tower Research Capital LLC (TRC) | 185 | $2.06K |
| Raymond James Financial Inc | 56 | $623 |
| Whittier Trust Co | 1 | $11 |