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 2021
Institutional positions in Seres Therapeutics, Inc. as of Sep 30, 2021. 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
- 133
- −14 vs. Q2 2021
- Shares held
- 79.6M
- −6.78M (−7.9%) vs. Q2 2021
- Total value
- $555.1M
- −$1.37B (−71.2%) vs. Q2 2021
- New holders
- 29
- 48 more added
- Sold out
- 43
- 33 more reduced
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Seres Therapeutics, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Flagship Pioneering Inc. | 14,378,802 | $100.1M | 1.05% | 00.0% | Unchanged |
| FMR LLC | 13,757,785 | $95.8M | 0.01% | +838,712+6.5% | Added |
| State Street Corp | 10,003,391 | $69.6M | 0.00% | +6,539,118+188.8% | Added |
| Federated Hermes, Inc. | 7,182,100 | $50.0M | 0.10% | +4,834,191+205.9% | Added |
| BlackRock Inc. | 5,842,807 | $40.7M | 0.00% | −578,178−9.0% | Reduced |
| Janus Henderson Group PLC | 4,338,801 | $30.2M | 0.01% | +533,062+14.0% | Added |
| Vanguard Group Inc | 3,956,272 | $27.5M | 0.00% | +550,702+16.2% | Added |
| Price T Rowe Associates Inc | 1,360,523 | $9.47M | 0.00% | −27,316−2.0% | Reduced |
| Two Sigma Investments, LP | 999,416 | $6.96M | 0.02% | +840,214+527.8% | Added |
| Geode Capital Management, LLC | 955,344 | $6.65M | 0.00% | −150,978−13.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 874,923 | $6.09M | 0.00% | −4,415,042−83.5% | Reduced |
| Nikko Asset Management Americas, Inc. | 874,923 | $6.09M | 0.03% | −4,405,231−83.4% | Reduced |
| Voloridge Investment Management, LLC | 809,381 | $5.63M | 0.04% | +809,381 | New |
| Northern Trust Corp | 681,475 | $4.74M | 0.00% | −33,632−4.7% | Reduced |
| Morgan Stanley | 681,435 | $4.74M | 0.00% | +53,584+8.5% | Added |
| Ikarian Capital, LLC | 606,554 | $4.22M | 0.97% | +606,554 | New |
| JPMorgan Chase & Co | 605,437 | $4.21M | 0.00% | +540,958+839.0% | Added |
| Goldman Sachs Group Inc | 571,515 | $3.98M | 0.00% | −150,994−20.9% | Reduced |
| Two Sigma Advisers, LP | 536,900 | $3.74M | 0.01% | +503,100+1,488.5% | Added |
| SG Americas Securities, LLC | 529,935 | $3.69M | 0.02% | +514,675+3,372.7% | Added |
| Nuveen Asset Management, LLC | 506,516 | $3.61M | 0.00% | +223,160+78.8% | Added |
| Rafferty Asset Management, LLC | 496,964 | $3.46M | 0.02% | +369,967+291.3% | Added |
| Lion Point Capital, LP | 481,803 | $3.35M | 0.89% | +481,803 | New |
| Hudson Bay Capital Management LP | 470,000 | $3.27M | 0.05% | +470,000 | New |
| Charles Schwab Investment Management Inc | 465,883 | $3.24M | 0.00% | +45,718+10.9% | Added |
| UBS Asset Management Americas Inc | 430,699 | $3.00M | 0.00% | +340,635+378.2% | Added |
| UBS Group AG | 395,863 | $2.75M | 0.00% | +387,885+4,861.9% | Added |
| Susquehanna International Group, LLP | 351,216 | $2.44M | 0.00% | +285,905+437.8% | Added |
| Citigroup Inc | 322,916 | $2.25M | 0.00% | +120,056+59.2% | Added |
| Cubist Systematic Strategies, LLC | 318,190 | $2.21M | 0.03% | +290,499+1,049.1% | Added |
| PDT Partners, LLC | 308,024 | $2.14M | 0.15% | +308,024 | New |
| Millennium Management LLC | 288,118 | $2.00M | 0.00% | +80,571+38.8% | Added |
| AXA S.A. | 281,300 | $1.96M | 0.01% | +281,300 | New |
| Silverarc Capital Management, LLC | 274,833 | $1.91M | 1.11% | +210,918+330.0% | Added |
| Bank of New York Mellon Corp | 274,150 | $1.91M | 0.00% | +13,564+5.2% | Added |
| Bank of America Corp | 248,325 | $1.73M | 0.00% | +99,059+66.4% | Added |
| Marshall Wace, LLP | 231,950 | $1.61M | 0.01% | +231,950 | New |
| Walleye Capital LLC | 217,662 | $1.51M | 0.05% | +217,662 | New |
| Simplex Trading, LLC | 62,164 | $1.40M | 0.05% | +12,882+26.1% | Added |
| Gsa Capital Partners LLP | 200,028 | $1.39M | 0.14% | +200,028 | New |
| AlphaCentric Advisors LLC | 165,500 | $1.15M | 0.29% | +165,500 | New |
| Swiss National Bank | 150,800 | $1.05M | 0.00% | 00.0% | Unchanged |
| LMR Partners LLP | 145,100 | $1.01M | 0.01% | +145,100 | New |
| Alliancebernstein L.P. | 135,400 | $942.0K | 0.00% | +48,600+56.0% | Added |
| Harvard Management Co Inc | 131,847 | $918.0K | 0.05% | 00.0% | Unchanged |
| Alps Advisors Inc | 112,414 | $782.0K | 0.01% | −7,537−6.3% | Reduced |
| Citadel Advisors LLC | 95,206 | $663.0K | 0.00% | −184,057−65.9% | Reduced |
| California State Teachers Retirement System | 94,000 | $654.0K | 0.00% | −1,966−2.0% | Reduced |
| AQR Capital Management LLC | 93,332 | $650.0K | 0.00% | +62,470+202.4% | Added |
| State of Wisconsin Investment Board | 90,100 | $627.0K | 0.00% | −15,854−15.0% | Reduced |
| Oregon Public Employees Retirement Fund | 89,274 | $621.0K | 0.01% | 00.0% | Unchanged |
| Marshall Wace North America L.P. | 85,755 | $598.0K | 0.00% | +85,755 | New |
| Rhumbline Advisers | 81,567 | $568.0K | 0.00% | +2,720+3.4% | Added |
| Jane Street Group, LLC | 81,354 | $567.0K | 0.00% | −12,656−13.5% | Reduced |
| Deutsche Bank AG | 78,542 | $547.0K | 0.00% | +31,576+67.2% | Added |
| Parametric Portfolio Associates LLC | 70,198 | $489.0K | 0.00% | +32,792+87.7% | Added |
| First Trust Advisors LP | 68,940 | $480.0K | 0.00% | +68,940 | New |
| Los Angeles Capital Management LLC | 66,762 | $465.0K | 0.00% | +66,762 | New |
| Occudo Quantitative Strategies LP | 63,919 | $445.0K | 0.05% | +63,919 | New |
| DekaBank Deutsche Girozentrale | 65,000 | $438.0K | 0.00% | 00.0% | Unchanged |
| Sit Investment Associates Inc | 62,450 | $435.0K | 0.01% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 61,097 | $425.0K | 0.02% | +61,097 | New |
| Edgewood Management LLC | 60,000 | $418.0K | 0.00% | +20,000+50.0% | Added |
| Wells Fargo & Company | 55,159 | $384.0K | 0.00% | +26,098+89.8% | Added |
| Hennion & Walsh Asset Management, Inc. | 52,156 | $363.0K | 0.02% | +17,855+52.1% | Added |
| HarbourVest Partners LLC | 49,363 | $344.0K | 0.03% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 47,981 | $334.0K | 0.00% | +16,324+51.6% | Added |
| Barclays PLC | 47,934 | $334.0K | 0.00% | +23,572+96.8% | Added |
| Credit Suisse AG | 46,454 | $323.0K | 0.00% | +3,644+8.5% | Added |
| LPL Financial LLC | 42,023 | $292.0K | 0.00% | −22,679−35.1% | Reduced |
| TD Asset Management Inc | 41,725 | $290.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 40,249 | $281.0K | 0.00% | +6,604+19.6% | Added |
| HAP Trading, LLC | 40,044 | $279.0K | 0.02% | +40,044 | New |
| New York State Common Retirement Fund | 38,407 | $267.0K | 0.00% | −21,640−36.0% | Reduced |
| American International Group, Inc. | 38,094 | $265.0K | 0.00% | −905−2.3% | Reduced |
| Manufacturers Life Insurance Company, The | 37,973 | $264.0K | 0.00% | −1,485−3.8% | Reduced |
| Handelsbanken Fonder AB | 36,500 | $254.0K | 0.00% | +20,500+128.1% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 36,249 | $252.0K | 0.00% | −5,260−12.7% | Reduced |
| Walleye Trading LLC | 35,591 | $248.0K | 0.01% | +24,486+220.5% | Added |
| Tower Research Capital LLC (TRC) | 35,176 | $245.0K | 0.01% | +25,397+259.7% | Added |
| Principal Financial Group Inc | 33,140 | $230.0K | 0.00% | −24,379−42.4% | Reduced |
| State Board of Administration of Florida Retirement System | 28,998 | $202.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 29,074 | $202.0K | 0.00% | +13,525+87.0% | Added |
| ProShare Advisors LLC | 28,511 | $198.0K | 0.00% | −6,018−17.4% | Reduced |
| E Fund Management Co., Ltd. | 27,492 | $191.0K | 0.01% | +27,492 | New |
| Voya Investment Management LLC | 27,336 | $190.0K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 26,997 | $188.0K | 0.00% | −2,195−7.5% | Reduced |
| Janney Montgomery Scott LLC | 26,700 | $186.0K | 0.00% | +26,700 | New |
| Erste Asset Management GmbH | 27,000 | $183.9K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 24,563 | $171.0K | 0.06% | +24,563 | New |
| Engineers Gate Manager LP | 21,500 | $150.0K | 0.01% | +21,500 | New |
| Arizona State Retirement System | 18,729 | $130.0K | 0.00% | +126+0.7% | Added |
| Russell Investments Group, Ltd. | 18,300 | $127.0K | 0.00% | 00.0% | Unchanged |
| Algert Global LLC | 17,858 | $124.0K | 0.02% | +17,858 | New |
| Trexquant Investment LP | 17,742 | $123.0K | 0.01% | +17,742 | New |
| Quantamental Technologies LLC | 17,337 | $121.0K | 0.08% | +17,337 | New |
| D. E. Shaw & Co., Inc. | 16,188 | $113.0K | 0.00% | −36,292−69.2% | Reduced |
| Ironwood Investment Management LLC | 15,620 | $109.0K | 0.06% | +21+0.1% | Added |
| MetLife Investment Management | 12,854 | $89.5K | 0.00% | −12,614−49.5% | Reduced |
| Amalgamated Bank | 12,626 | $88.0K | 0.00% | −517−3.9% | Reduced |