Seres TherapeuticsMCRB
13F holders, Q1 2025 (March 31)59holders −10
5new positions
15sold out
2famous investors
$0.70avg. 13F price*
At the end of Q1 2025, 59 institutions reported holding Seres Therapeutics Inc. (MCRB) in their 13F filings, down 10 from Q4 2024. 5 opened new positions and 15 sold out. The largest holders were Flagship Pioneering, LLC ($16.2M), FMR LLC ($15.3M) and Vanguard Group Inc. ($4.3M). 2 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Seres Therapeutics Inc.
- CUSIP
- 81750R102
- Latest filing quarter
- Q1 2025
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $188K |
| Exits | 15 | $284K |
All 13F filers, Q4 2024 → Q1 2025: 2,501,455 shares bought and 4,220,898 shares sold, net −1,719,443 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 59 holders
| Flagship Pioneering, LLC | 6.86% | No change | 23,117,045 | $16.2M |
| FMR LLC | 0.00% | Add +0.4% | 21,889,432 | $15.3M |
| Vanguard Group Inc. | 0.00% | Add +3.7% | 6,091,999 | $4.3M |
| BlackRock, Inc. | 0.00% | No change | 1,762,157 | $1.2M |
| Geode Capital Management, LLC | 0.00% | Add +7.2% | 1,618,772 | $1.1M |
| UBS Group AG | 0.00% | Add +325.4% | 1,456,161 | $1.0M |
| Vontobel Holding Ltd. | 0.00% | Add +15.7% | 1,085,966 | $760K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -3.7% | 834,107 | $584K |
| Susquehanna International Group, LLP | 0.00% | Add +118.8% | 717,146 | $502K |
| State Street Corp. | 0.00% | No change | 500,748 | $351K |
| Lion Point Capital, LP | 1.52% | No change | 340,761 | $239K |
| Northern Trust Corp. | 0.00% | Add +14.8% | 301,564 | $211K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 250,000 | $175K |
| Tang Capital Management LLC | 0.01% | New | 203,904 | $143K |
| Morgan Stanley | 0.00% | Reduce -92.6% | 149,604 | $105K |
| Invesco Ltd. | 0.00% | Add +193.2% | 136,572 | $96K |
| Providence Wealth Advisors, LLC | 0.05% | No change | 105,000 | $71K |
| LPL Financial LLC | 0.00% | Add +0.4% | 95,137 | $67K |
| Goldman Sachs Group Inc. | 0.00% | Add +40.9% | 74,629 | $52K |
| Schonfeld Strategic Advisors LLC | 0.00% | Reduce -49.1% | 51,300 | $36K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Reduce -28.7% | 50,720 | $36K |
| Engineers Gate Manager LP | 0.00% | Reduce -44.0% | 47,637 | $33K |
| Avantax Advisory Services, Inc. | 0.00% | No change | 45,179 | $32K |
| Kestra Advisory Services, LLC | 0.00% | No change | 38,471 | $27K |
| Cantor Fitzgerald, L. P. | 0.00% | Reduce -60.9% | 37,475 | $26K |
| Ironwood Investment Management LLC | 0.01% | Reduce -7.8% | 36,494 | $26K |
| Two Sigma Investments, LP | 0.00% | Add +32.4% | 32,328 | $23K |
| Millennium Management | 0.00% | Reduce -98.4% | 29,550 | $21K |
| Two Sigma Securities, LLC | 0.00% | New | 25,588 | $18K |
| Group One Trading LLC | 0.00% | Add +38.8% | 22,707 | $16K |
| Arete Wealth Advisors, LLC | 0.00% | No change | 20,900 | $15K |
| Stifel Financial Corp. | 0.00% | No change | 20,000 | $14K |
| Janney Montgomery Scott LLC | 0.00% | Reduce -58.8% | 20,000 | $14K |
| MML Investors Services, LLC | 0.00% | No change | 15,864 | $11K |
| Victory Capital Management Inc. | 0.00% | Reduce -0.6% | 15,342 | $11K |
| Miller Financial Services LLC | 0.02% | New | 15,000 | $11K |
| Aries Wealth Management | 0.00% | No change | 15,000 | $11K |
| Peapack Gladstone Financial Corp. | 0.00% | New | 13,000 | $9K |
| Mission Wealth Management, LP | 0.00% | New | 11,495 | $8K |
| Commonwealth Equity Services, LLC | 0.00% | No change | 11,598 | $8K |
| Diversified Trust Co. | 0.00% | No change | 10,000 | $7K |
| Integrated Wealth Concepts LLC | 0.00% | No change | 10,000 | $7K |
| Wells Fargo & Company | 0.00% | Add +3800.0% | 7,800 | $5K |
| BNP Paribas Financial Markets | 0.00% | Reduce -10.4% | 6,137 | $4K |
| Bank of America Corp. | 0.00% | Add +56.8% | 5,954 | $4K |
| Royal Bank of Canada | 0.00% | Add +126.6% | 4,444 | $3K |
| Barclays PLC | 0.00% | Reduce -0.1% | 1,593 | $1K |
| JPMorgan Chase & Co. | 0.00% | No change | 1,304 | $913 |
| TFC Financial Management, Inc. | 0.00% | No change | 1,000 | $701 |
| Continuum Advisory, LLC | 0.00% | No change | 955 | $669 |
| Sandy Spring Bank | 0.00% | No change | 345 | $242 |
| Citigroup Inc. | 0.00% | Reduce -94.2% | 215 | $151 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -35.1% | 200 | $140 |
| Farther Finance Advisors, LLC | 0.00% | No change | 204 | $138 |
| Sound Income Strategies, LLC | 0.00% | No change | 175 | $123 |
| Osaic Holdings, Inc. | 0.00% | Reduce -60.4% | 160 | $112 |
| Jones Financial Companies LLLP | 0.00% | No change | 49 | $35 |
| Citadel Advisors | 0.00% | Add +54.8% | 48 | $34 |
| Whittier Trust Co. | 0.00% | No change | 30 | $21 |
"% of holder's portfolio" is MCRB's weight in each manager's 13F, not the share of Seres Therapeutics Inc. the manager owns.