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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, Q2 2023

Institutional positions in Seres Therapeutics, Inc. as of Jun 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
138
+15 vs. Q1 2023
Shares held
112.3M
+7.57M (+7.2%) vs. Q1 2023
Total value
$538.1M
−$55.9M (−9.4%) vs. Q1 2023
New holders
36
59 more added
Sold out
21
25 more reduced

Compare with Q1 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 holdersQ2 2023: 138 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 heldQ2 2023: $538.1M
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, Q2 2023

Shares, value and share of portfolio for each institution holding Seres Therapeutics, Inc.; share changes are against Q1 2023.

Institutions holding MCRB in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Prudential Financial Inc206,145$987.4K0.00%+206,145New
Swiss National Bank219,600$1.05M0.00%+4,500+2.1%Added
Schonfeld Strategic Advisors LLC222,257$1.06M0.01%+222,257New
Woodline Partners LP243,595$1.17M0.01%+243,595New
Susquehanna International Group, LLP254,339$1.22M0.00%−40,107−13.6%Reduced
Citigroup Inc255,106$1.22M0.00%+59,884+30.7%Added
Sit Investment Associates Inc262,325$1.26M0.03%00.0%Unchanged
Nuveen Asset Management, LLC280,935$1.35M0.00%−88,760−24.0%Reduced
Price T Rowe Associates Inc314,427$1.51M0.00%−269,645−46.2%Reduced
Bank of New York Mellon Corp323,007$1.55M0.00%+72,538+29.0%Added
Barclays PLC370,905$1.78M0.00%+260,845+237.0%Added
Morgan Stanley461,170$2.21M0.00%+266,954+137.5%Added
Knott David M Jr470,000$2.25M0.95%+155,000+49.2%Added
Simplify Asset Management Inc.550,626$2.64M0.48%00.0%Unchanged
ExodusPoint Capital Management, LP594,895$2.85M0.03%+594,895New
Goldman Sachs Group Inc656,794$3.15M0.00%+336,046+104.8%Added
Lion Point Capital, LP691,803$3.31M2.46%+95,000+15.9%Added
Charles Schwab Investment Management Inc714,269$3.42M0.00%+80,400+12.7%Added
Rafferty Asset Management, LLC773,387$3.70M0.02%+534,100+223.2%Added
Hudson Bay Capital Management LP880,000$4.22M0.04%+355,000+67.6%Added
Northern Trust Corp925,163$4.43M0.00%+184,489+24.9%Added
Great Point Partners LLC938,067$4.49M0.90%+938,067New
Handelsbanken Fonder AB1,000,000$4.79M0.03%+200,000+25.0%Added
Point72 Asset Management, L.P.1,020,400$4.89M0.02%+727,600+248.5%Added
Bank of America Corp1,193,896$5.72M0.00%+786,699+193.2%Added
Jennison Associates LLC1,392,356$6.67M0.01%+727,622+109.5%Added
Millennium Management LLC1,759,914$8.43M0.01%+1,351,434+330.8%Added
Geode Capital Management, LLC1,961,358$9.39M0.00%+325,849+19.9%Added
Soleus Capital Management, L.P.2,045,983$9.80M1.09%+2,045,983New
Avoro Capital Advisors LLC2,500,000$12.0M0.16%+1,205,000+93.1%Added
Eversept Partners, LP3,076,756$14.7M1.56%+540,091+21.3%Added
Vanguard Group Inc5,357,183$25.7M0.00%−495,953−8.5%Reduced
Janus Henderson Group PLC6,072,942$29.1M0.02%−5,227,873−46.3%Reduced
BlackRock Inc.7,481,227$35.8M0.00%+1,232,141+19.7%Added
State Street Corp8,564,935$41.0M0.00%+4,796,626+127.3%Added
Federated Hermes, Inc.11,394,801$54.6M0.14%−3,882,555−25.4%Reduced
FMR LLC19,185,208$91.9M0.01%+273,750+1.4%Added
Flagship Pioneering Inc.23,117,045$110.7M4.94%00.0%Unchanged
Kynam Capital Management, LP0$00.00%−768,913−100.0%Sold out
Renaissance Technologies LLC0$00.00%−398,200−100.0%Sold out
Walleye Capital LLC0$00.00%−362,324−100.0%Sold out
Silverarc Capital Management, LLC0$00.00%−232,525−100.0%Sold out
Atom Investors LP0$00.00%−90,388−100.0%Sold out
Advisory Research Inc0$00.00%−73,553−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−66,595−100.0%Sold out
Hennion & Walsh Asset Management, Inc.0$00.00%−61,090−100.0%Sold out
HRT Financial LP0$00.00%−58,661−100.0%Sold out
SG Americas Securities, LLC0$00.00%−43,684−100.0%Sold out
Group One Trading, L.P.0$00.00%−30,094−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−16,448−100.0%Sold out
Nebula Research & Development LLC0$00.00%−11,893−100.0%Sold out
Walleye Trading LLC0$00.00%−10,198−100.0%Sold out
Quadrant Capital Group LLC0$00.00%−2,101−100.0%Sold out
Orion Capital Management LLC0$00.00%−1,000−100.0%Sold out
Crewe Advisors LLC0$00.00%−676−100.0%Sold out
Signaturefd, LLC0$00.00%−339−100.0%Sold out
US Bancorp0$00.00%−175−100.0%Sold out
Grey Fox Wealth Advisors, LLC0$00.00%−100−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−49−100.0%Sold out