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.
13F holders, Q3 2023
Institutional positions in Seres Therapeutics, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 134
- −3 vs. Q2 2023
- Shares held
- 107.4M
- −4.90M (−4.4%) vs. Q2 2023
- Total value
- $255.6M
- −$282.4M (−52.5%) vs. Q2 2023
- New holders
- 21
- 54 more added
- Sold out
- 24
- 30 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MCRB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 35 | $17.9M |
| Q1 2026 | 33 | $20.5M |
| Q4 2025 | 36 | $36.4M |
| Q3 2025 | 32 | $40.9M |
| Q2 2025 | 33 | $25.4M |
| Q1 2025 | 63 | $43.1M |
| Q4 2024 | 69 | $52.5M |
| Q3 2024 | 77 | $60.1M |
| Q2 2024 | 93 | $50.0M |
| Q1 2024 | 99 | $66.3M |
| Q4 2023 | 103 | $125.4M |
| Q3 2023 | 134 | $255.6M |
| Q2 2023 | 138 | $538.1M |
| Q1 2023 | 123 | $593.9M |
| Q4 2022 | 124 | $588.2M |
| Q3 2022 | 120 | $671.6M |
| Q2 2022 | 123 | $312.7M |
| Q1 2022 | 131 | $537.2M |
| Q4 2021 | 148 | $642.8M |
| Q3 2021 | 133 | $555.1M |
| Q2 2021 | 147 | $1.93B |
| Q1 2021 | 154 | $1.85B |
Institutions, Q3 2023
Shares, value and share of portfolio for each institution holding Seres Therapeutics, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Flagship Pioneering Inc. | 23,117,045 | $55.0M | 3.99% | 00.0% | Unchanged |
| FMR LLC | 19,230,692 | $45.8M | 0.00% | +45,484+0.2% | Added |
| State Street Corp | 9,535,890 | $22.7M | 0.00% | +970,955+11.3% | Added |
| Federated Hermes, Inc. | 8,981,717 | $21.4M | 0.06% | −2,413,084−21.2% | Reduced |
| BlackRock Inc. | 7,921,928 | $18.9M | 0.00% | +440,701+5.9% | Added |
| Vanguard Group Inc | 5,476,744 | $13.0M | 0.00% | +119,561+2.2% | Added |
| Janus Henderson Group PLC | 2,813,543 | $6.70M | 0.00% | −3,259,399−53.7% | Reduced |
| Point72 Asset Management, L.P. | 2,749,100 | $6.54M | 0.02% | +1,728,700+169.4% | Added |
| Avoro Capital Advisors LLC | 2,500,000 | $5.95M | 0.09% | 00.0% | Unchanged |
| Eversept Partners, LP | 2,352,556 | $5.60M | 0.62% | −724,200−23.5% | Reduced |
| Hudson Bay Capital Management LP | 1,999,800 | $4.76M | 0.05% | +1,119,800+127.3% | Added |
| Geode Capital Management, LLC | 1,987,559 | $4.73M | 0.00% | +26,201+1.3% | Added |
| Soleus Capital Management, L.P. | 1,820,983 | $4.33M | 0.44% | −225,000−11.0% | Reduced |
| Bank of America Corp | 1,254,395 | $2.99M | 0.00% | +60,499+5.1% | Added |
| Handelsbanken Fonder AB | 1,000,000 | $2.38M | 0.01% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 936,382 | $2.23M | 0.01% | +162,995+21.1% | Added |
| Northern Trust Corp | 922,661 | $2.20M | 0.00% | −2,502−0.3% | Reduced |
| Millennium Management LLC | 788,022 | $1.88M | 0.00% | −971,892−55.2% | Reduced |
| Charles Schwab Investment Management Inc | 756,567 | $1.80M | 0.00% | +42,298+5.9% | Added |
| ExodusPoint Capital Management, LP | 735,658 | $1.75M | 0.02% | +140,763+23.7% | Added |
| Goldman Sachs Group Inc | 700,863 | $1.67M | 0.00% | +44,069+6.7% | Added |
| Lion Point Capital, LP | 691,803 | $1.65M | 1.51% | 00.0% | Unchanged |
| Simplify Asset Management Inc. | 550,626 | $1.31M | 0.22% | 00.0% | Unchanged |
| Citigroup Inc | 484,822 | $1.15M | 0.00% | +229,716+90.0% | Added |
| Barclays PLC | 461,209 | $1.10M | 0.00% | +90,304+24.3% | Added |
| Morgan Stanley | 369,398 | $879.2K | 0.00% | −91,772−19.9% | Reduced |
| Sit Investment Associates Inc | 342,200 | $814.0K | 0.02% | +79,875+30.4% | Added |
| Price T Rowe Associates Inc | 331,861 | $791.0K | 0.00% | +17,434+5.5% | Added |
| Bank of New York Mellon Corp | 320,758 | $763.4K | 0.00% | −2,249−0.7% | Reduced |
| Nuveen Asset Management, LLC | 279,471 | $665.1K | 0.00% | −1,464−0.5% | Reduced |
| State of Wisconsin Investment Board | 265,408 | $631.7K | 0.00% | +178,074+203.9% | Added |
| Susquehanna International Group, LLP | 249,813 | $594.6K | 0.00% | −4,526−1.8% | Reduced |
| BNP Paribas Arbitrage, SA | 248,503 | $591.4K | 0.00% | +93,840+60.7% | Added |
| Swiss National Bank | 225,000 | $535.5K | 0.00% | +5,400+2.5% | Added |
| Graham Capital Management, L.P. | 206,838 | $492.3K | 0.01% | +181,957+731.3% | Added |
| Woodline Partners LP | 200,000 | $476.0K | 0.01% | −43,595−17.9% | Reduced |
| Advisor Group Holdings, Inc. | 194,332 | $462.4K | 0.00% | +5,151+2.7% | Added |
| Wells Fargo & Company | 193,284 | $460.0K | 0.00% | +21,476+12.5% | Added |
| Citadel Advisors LLC | 187,872 | $447.1K | 0.00% | +146,099+349.7% | Added |
| UBS Group AG | 166,137 | $395.4K | 0.00% | +92,906+126.9% | Added |
| Qube Research & Technologies Ltd | 165,542 | $394.0K | 0.00% | +165,542 | New |
| Profund Advisors LLC | 155,798 | $370.8K | 0.02% | +16,549+11.9% | Added |
| XTX Topco Ltd | 150,097 | $357.2K | 0.06% | +150,097 | New |
| JPMorgan Chase & Co | 143,656 | $341.9K | 0.00% | +3,657+2.6% | Added |
| Credit Suisse AG | 137,376 | $327.0K | 0.00% | −33,406−19.6% | Reduced |
| Rhumbline Advisers | 136,567 | $325.0K | 0.00% | +1,767+1.3% | Added |
| Harvard Management Co Inc | 131,847 | $314.0K | 0.04% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 127,660 | $303.8K | 0.00% | +23,560+22.6% | Added |
| LPL Financial LLC | 123,950 | $295.0K | 0.00% | +8,892+7.7% | Added |
| Dark Forest Capital Management LP | 117,498 | $279.6K | 0.02% | +117,498 | New |
| California State Teachers Retirement System | 111,900 | $266.3K | 0.00% | −9,209−7.6% | Reduced |
| Walleye Capital LLC | 101,751 | $242.2K | 0.00% | +101,751 | New |
| UBS Asset Management Americas Inc | 94,095 | $223.9K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 87,206 | $208.0K | 0.02% | +43,575+99.9% | Added |
| Tudor Investment Corp Et Al | 87,153 | $207.4K | 0.00% | +87,153 | New |
| Legal & General Group Plc | 85,689 | $203.9K | 0.00% | −958−1.1% | Reduced |
| Janney Montgomery Scott LLC | 84,885 | $202.0K | 0.00% | −5,400−6.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 83,226 | $198.1K | 0.00% | +3,782+4.8% | Added |
| Aigen Investment Management, LP | 75,241 | $179.1K | 0.03% | +64,128+577.1% | Added |
| Parallax Volatility Advisers, L.P. | 73,519 | $175.0K | 0.01% | −61,382−45.5% | Reduced |
| Knott David M Jr | 70,000 | $167.0K | 0.07% | −400,000−85.1% | Reduced |
| Simplex Trading, LLC | 64,201 | $152.0K | 0.01% | +3,181+5.2% | Added |
| Verition Fund Management LLC | 62,102 | $147.8K | 0.00% | +62,102 | New |
| Deutsche Bank AG | 55,028 | $131.0K | 0.00% | +6,577+13.6% | Added |
| Principal Financial Group Inc | 53,943 | $128.4K | 0.00% | +8,738+19.3% | Added |
| Clear Creek Financial Management, LLC | 51,450 | $122.5K | 0.02% | −2,750−5.1% | Reduced |
| MetLife Investment Management | 51,439 | $122.4K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 50,400 | $120.0K | 0.01% | +50,400 | New |
| Edgewood Management LLC | 50,000 | $119.0K | 0.00% | 00.0% | Unchanged |
| HarbourVest Partners LLC | 49,363 | $117.5K | 0.04% | 00.0% | Unchanged |
| American International Group, Inc. | 48,546 | $115.5K | 0.00% | +1,726+3.7% | Added |
| E Fund Management Co., Ltd. | 48,095 | $114.0K | 0.01% | +6,514+15.7% | Added |
| Ironwood Investment Management LLC | 45,419 | $108.1K | 0.07% | −1,542−3.3% | Reduced |
| Invesco Ltd. | 43,358 | $103.2K | 0.00% | +2,262+5.5% | Added |
| Great West Life Assurance Co | 42,609 | $101.0K | 0.00% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 41,583 | $99.0K | 0.00% | +2,764+7.1% | Added |
| Voya Investment Management LLC | 40,532 | $96.5K | 0.00% | +1,740+4.5% | Added |
| Manufacturers Life Insurance Company, The | 39,936 | $95.0K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 39,105 | $93.1K | 0.00% | +515+1.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 30,593 | $72.8K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 29,400 | $70.0K | 0.00% | −50,433−63.2% | Reduced |
| State Board of Administration of Florida Retirement System | 29,158 | $69.4K | 0.00% | +150+0.5% | Added |
| Arizona State Retirement System | 29,134 | $69.3K | 0.00% | +804+2.8% | Added |
| Teacher Retirement System of Texas | 28,958 | $69.0K | 0.00% | +1,598+5.8% | Added |
| Arete Wealth Advisors, LLC | 24,900 | $59.3K | 0.01% | +12,400+99.2% | Added |
| Kestra Advisory Services, LLC | 23,631 | $56.2K | 0.00% | −7,750−24.7% | Reduced |
| Corton Capital Inc. | 23,245 | $55.3K | 0.03% | −42,527−64.7% | Reduced |
| ProShare Advisors LLC | 21,017 | $50.0K | 0.00% | +90+0.4% | Added |
| HighTower Advisors, LLC | 21,005 | $50.0K | 0.00% | +50.0% | Added |
| PFG Investments, LLC | 19,500 | $46.4K | 0.01% | 00.0% | Unchanged |
| Creative Planning | 18,663 | $44.4K | 0.00% | +1,359+7.9% | Added |
| Russell Investments Group, Ltd. | 18,300 | $43.6K | 0.00% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 17,000 | $40.5K | 0.00% | −18,865−52.6% | Reduced |
| Virtus ETF Advisers LLC | 16,156 | $38.5K | 0.02% | −1,612−9.1% | Reduced |
| Walleye Trading LLC | 15,053 | $35.8K | 0.00% | +15,053 | New |
| AQR Capital Management LLC | 15,031 | $35.8K | 0.00% | −4,676−23.7% | Reduced |
| Pictet Asset Management Holding SA | 13,692 | $32.6K | 0.00% | +13,692 | New |
| GTS Securities LLC | 13,505 | $32.1K | 0.00% | +13,505 | New |
| Royal Bank of Canada | 13,602 | $32.0K | 0.00% | +6,191+83.5% | Added |
| Two Sigma Investments, LP | 12,029 | $28.6K | 0.00% | +12,029 | New |