Skip to main content

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, Q1 2021

Institutional positions in Seres Therapeutics, Inc. as of Mar 31, 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
154
No complete 13F data for Q4 2020
Shares held
90.0M
No complete 13F data for Q4 2020
Total value
$1.85B
No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 154 institutions
Q1 2021: 154 institutionsQ2 2021: 147 institutionsQ3 2021: 133 institutionsQ4 2021: 148 institutionsQ1 2022: 131 institutionsQ2 2022: 123 institutionsQ3 2022: 120 institutionsQ4 2022: 124 institutionsQ1 2023: 123 institutionsQ2 2023: 138 institutionsQ3 2023: 134 institutionsQ4 2023: 103 institutionsQ1 2024: 99 institutionsQ2 2024: 93 institutionsQ3 2024: 77 institutionsQ4 2024: 69 institutionsQ1 2025: 63 institutionsQ2 2025: 33 institutionsQ3 2025: 32 institutionsQ4 2025: 36 institutionsQ1 2026: 33 institutionsQ2 2026: 35 institutions
Value heldQ1 2021: $1.85B
Q1 2021: $1.85BQ2 2021: $1.93BQ3 2021: $555.1MQ4 2021: $642.8MQ1 2022: $537.2MQ2 2022: $312.7MQ3 2022: $671.6MQ4 2022: $588.2MQ1 2023: $593.9MQ2 2023: $538.1MQ3 2023: $255.6MQ4 2023: $125.4MQ1 2024: $66.3MQ2 2024: $50.0MQ3 2024: $60.1MQ4 2024: $52.5MQ1 2025: $43.1MQ2 2025: $25.4MQ3 2025: $40.9MQ4 2025: $36.4MQ1 2026: $20.5MQ2 2026: $17.9M
Institutions holding MCRB and their total value by quarter
QuarterHoldersValue
Q2 202635$17.9M
Q1 202633$20.5M
Q4 202536$36.4M
Q3 202532$40.9M
Q2 202533$25.4M
Q1 202563$43.1M
Q4 202469$52.5M
Q3 202477$60.1M
Q2 202493$50.0M
Q1 202499$66.3M
Q4 2023103$125.4M
Q3 2023134$255.6M
Q2 2023138$538.1M
Q1 2023123$593.9M
Q4 2022124$588.2M
Q3 2022120$671.6M
Q2 2022123$312.7M
Q1 2022131$537.2M
Q4 2021148$642.8M
Q3 2021133$555.1M
Q2 2021147$1.93B
Q1 2021154$1.85B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Seres Therapeutics, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding MCRB in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
LPL Financial LLC64,867$1.34M0.00%––
Rhumbline Advisers70,603$1.45M0.00%––
UBS Asset Management Americas Inc72,028$1.48M0.00%––
Jane Street Group, LLC75,022$1.54M0.00%––
Alliancebernstein L.P.79,100$1.63M0.00%––
California State Teachers Retirement System83,283$1.72M0.00%––
Allianz Asset Management GmbH83,369$1.72M0.00%––
Oregon Public Employees Retirement Fund89,274$1.84M0.02%––
State of Wisconsin Investment Board90,600$1.86M0.00%––
Schroder Investment Management Group95,009$1.96M0.00%––
Silverarc Capital Management, LLC100,000$2.06M1.15%––
Altium Capital Management LP104,626$2.15M0.60%––
California Public Employees Retirement System104,780$2.16M0.00%––
Susquehanna International Group, LLP109,842$2.26M0.00%––
Two Sigma Advisers, LP119,200$2.45M0.01%––
Renaissance Technologies LLC129,200$2.66M0.00%––
Harvard Management Co Inc131,847$2.71M0.15%––
Commodore Capital LP141,303$2.91M1.16%––
Squarepoint Ops LLC142,382$2.93M0.03%––
JPMorgan Chase & Co143,007$2.94M0.00%––
Swiss National Bank145,900$3.00M0.00%––
Bank of America Corp152,003$3.13M0.00%––
Rafferty Asset Management, LLC155,921$3.21M0.02%––
Alps Advisors Inc165,626$3.41M0.03%––
Artal Group S.A.200,000$4.12M0.09%––
Citigroup Inc200,473$4.13M0.00%––
Bank of New York Mellon Corp207,444$4.27M0.00%––
Two Sigma Investments, LP209,901$4.32M0.01%––
Eversept Partners, LP215,276$4.43M0.36%––
Millennium Management LLC267,121$5.50M0.01%––
Citadel Advisors LLC340,202$7.00M0.01%––
Ikarian Capital, LLC350,000$7.21M1.07%––
Fairmount Funds Management LLC353,016$7.27M3.06%––
Morgan Stanley353,758$7.28M0.00%––
Charles Schwab Investment Management Inc382,377$7.87M0.00%––
Opaleye Management Inc.300,000$9.80M1.44%––
Northern Trust Corp642,606$13.2M0.00%––
Lord, Abbett & Co. LLC700,049$14.4M0.04%––
Goldman Sachs Group Inc909,120$18.7M0.01%––
Geode Capital Management, LLC973,044$20.0M0.00%––
Point72 Asset Management, L.P.974,671$20.1M0.10%––
Price T Rowe Associates Inc1,417,342$29.2M0.00%––
Gilder Gagnon Howe & Co LLC2,608,155$53.7M0.29%––
Federated Hermes, Inc.2,762,909$56.9M0.11%––
State Street Corp3,370,820$69.4M0.00%––
Vanguard Group Inc3,419,277$70.4M0.00%––
Janus Henderson Group PLC3,647,933$75.1M0.03%––
Ra Capital Management, L.P.3,694,193$76.1M1.15%––
Sumitomo Mitsui Trust Holdings, Inc.5,950,118$122.5M0.08%––
Nikko Asset Management Americas, Inc.5,999,356$123.5M0.61%––
BlackRock Inc.6,147,316$126.6M0.00%––
ARK Investment Management LLCSuperinvestorARK Invest11,855,947$244.1M0.48%––
FMR LLC12,280,673$252.9M0.02%––
Flagship Pioneering Inc.14,673,973$302.1M4.84%––
Raffa Wealth Management, LLC0$00.00%––