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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, Q4 2023

Institutional positions in Seres Therapeutics, Inc. as of Dec 31, 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
103
−31 vs. Q3 2023
Shares held
89.5M
−17.9M (−16.6%) vs. Q3 2023
Total value
$125.4M
−$130.2M (−50.9%) vs. Q3 2023
New holders
18
25 more added
Sold out
49
42 more reduced

Compare with Q3 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.

Institutional holdersQ4 2023: 103 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 heldQ4 2023: $125.4M
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, Q4 2023

Shares, value and share of portfolio for each institution holding Seres Therapeutics, Inc.; share changes are against Q3 2023.

Institutions holding MCRB in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Sound Income Strategies, LLC175$2450.00%00.0%Unchanged
Farther Finance Advisors, LLC3$40.00%+3New
Providence Wealth Advisors, LLC675––+675New
Federated Hermes, Inc.0$00.00%−8,981,717−100.0%Sold out
Janus Henderson Group PLC0$00.00%−2,813,543−100.0%Sold out
Avoro Capital Advisors LLC0$00.00%−2,500,000−100.0%Sold out
Soleus Capital Management, L.P.0$00.00%−1,820,983−100.0%Sold out
Rafferty Asset Management, LLC0$00.00%−936,382−100.0%Sold out
Simplify Asset Management Inc.0$00.00%−550,626−100.0%Sold out
Nuveen Asset Management, LLC0$00.00%−279,471−100.0%Sold out
State of Wisconsin Investment Board0$00.00%−265,408−100.0%Sold out
Swiss National Bank0$00.00%−225,000−100.0%Sold out
Profund Advisors LLC0$00.00%−155,798−100.0%Sold out
Credit Suisse AG0$00.00%−137,376−100.0%Sold out
Harvard Management Co Inc0$00.00%−131,847−100.0%Sold out
UBS Asset Management Americas Inc0$00.00%−94,095−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−87,206−100.0%Sold out
Mirae Asset Global Investments Co., Ltd.0$00.00%−83,226−100.0%Sold out
Aigen Investment Management, LP0$00.00%−75,241−100.0%Sold out
Verition Fund Management LLC0$00.00%−62,102−100.0%Sold out
MetLife Investment Management0$00.00%−51,439−100.0%Sold out
E Fund Management Co., Ltd.0$00.00%−48,095−100.0%Sold out
Great West Life Assurance Co0$00.00%−42,609−100.0%Sold out
Oppenheimer & Co Inc0$00.00%−41,583−100.0%Sold out
Zurcher Kantonalbank (Zurich Cantonalbank)0$00.00%−30,593−100.0%Sold out
Arizona State Retirement System0$00.00%−29,134−100.0%Sold out
Teacher Retirement System of Texas0$00.00%−28,958−100.0%Sold out
Corton Capital Inc.0$00.00%−23,245−100.0%Sold out
Virtus ETF Advisers LLC0$00.00%−16,156−100.0%Sold out
Walleye Trading LLC0$00.00%−15,053−100.0%Sold out
Pictet Asset Management Holding SA0$00.00%−13,692−100.0%Sold out
GTS Securities LLC0$00.00%−13,505−100.0%Sold out
Public Employees Retirement Association of Colorado0$00.00%−11,210−100.0%Sold out
Sawtooth Solutions, LLC0$00.00%−11,294−100.0%Sold out
Bleakley Financial Group, LLC0$00.00%−11,294−100.0%Sold out
Commonwealth Equity Services, LLC0$00.00%−11,040−100.0%Sold out
Clearwater Capital Advisors, LLC0$00.00%−10,897−100.0%Sold out
Caption Management, LLC0$00.00%−7,612−100.0%Sold out
Venturi Wealth Management, LLC0$00.00%−6,600−100.0%Sold out
Cutler Group LP0$00.00%−6,220−100.0%Sold out
Metropolitan Life Insurance Co0$00.00%−5,330−100.0%Sold out
Natixis0$00.00%−5,000−100.0%Sold out
China Universal Asset Management Co., Ltd.0$00.00%−3,284−100.0%Sold out
Signaturefd, LLC0$00.00%−2,991−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−2,620−100.0%Sold out
Massmutual Trust Co FSB0$00.00%−914−100.0%Sold out
Quadrant Capital Group LLC0$00.00%−884−100.0%Sold out
Lindbrook Capital, LLC0$00.00%−515−100.0%Sold out
Belvedere Trading LLC0$00.00%−472−100.0%Sold out
Daiwa Securities Group Inc.0$00.00%−501−100.0%Sold out
Comerica Bank0$00.00%−373−100.0%Sold out
Newbridge Financial Services Group, Inc.0$00.00%−55−100.0%Sold out