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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 2021

Institutional positions in Seres Therapeutics, Inc. as of Jun 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
147
−7 vs. Q1 2021
Shares held
86.4M
−3.60M (−4.0%) vs. Q1 2021
Total value
$1.93B
+$74.2M (+4.0%) vs. Q1 2021
New holders
21
59 more added
Sold out
28
45 more reduced

Compare with Q1 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.

Institutional holdersQ2 2021: 147 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 2021: $1.93B
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 2021

Shares, value and share of portfolio for each institution holding Seres Therapeutics, Inc.; share changes are against Q1 2021.

Institutions holding MCRB in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
The PNC Financial Services Group, Inc.6$00.00%00.0%Unchanged
Kelly Financial Services LLC5,724$2400.01%+5,484+2,285.0%Added
TD Private Client Wealth LLC38$9060.00%+38New
Newbridge Financial Services Group, Inc.55$1.00K0.00%00.0%Unchanged
US Bancorp31$1.00K0.00%+31New
Sandy Spring Bank73$2.00K0.00%00.0%Unchanged
Bessemer Group Inc139$3.00K0.00%00.0%Unchanged
TCI Wealth Advisors, Inc.136$3.00K0.00%+44+47.8%Added
Concord Wealth Partners178$4.00K0.00%−400−69.2%Reduced
Daiwa Securities Group Inc.172$4.00K0.00%00.0%Unchanged
Berman Capital Advisors, LLC244$5.00K0.00%00.0%Unchanged
Ellis Investment Partners, LLC275$6.00K0.00%00.0%Unchanged
Massmutual Trust Co FSB349$8.00K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC400$10.0K0.00%−1,000−71.4%Reduced
Rockefeller Capital Management L.P.527$12.0K0.00%+168+46.8%Added
Captrust Financial Advisors516$12.0K0.00%+347+205.3%Added
NEXT Financial Group, Inc564$13.0K0.00%00.0%Unchanged
Evolution Wealth Advisors, LLC529$13.0K0.00%+54+11.4%Added
Benjamin Edwards Inc679$16.0K0.01%−223−24.7%Reduced
First Horizon Advisors, Inc.972$22.0K0.00%+316+48.2%Added
Orion Capital Management LLC1,000$24.0K0.01%00.0%Unchanged
Advisor Group Holdings, Inc.1,577$38.0K0.00%+16+1.0%Added
O'Shaughnessy Asset Management, LLC1,910$46.0K0.00%00.0%Unchanged
Penserra Capital Management LLC2,085$49.0K0.00%+25+1.2%Added
Macquarie Group Ltd2,320$55.0K0.00%+10.0%Added
BNP Paribas Arbitrage, SA2,621$62.5K0.00%−4,195−61.5%Reduced
Cutler Group LP3,200$76.0K0.01%+2,300+255.6%Added
Nisa Investment Advisors, LLC3,890$93.0K0.00%+3,300+559.3%Added
FORA Capital, LLC3,935$94.0K0.02%+3,935New
Great West Life Assurance Co4,213$100.0K0.00%00.0%Unchanged
Royal Bank of Canada4,765$114.0K0.00%+2,261+90.3%Added
Point72 Hong Kong Ltd5,042$120.0K0.01%+688+15.8%Added
Ameritas Investment Partners, Inc.5,457$130.0K0.00%+933+20.6%Added
KBC Group NV5,640$135.0K0.00%+4,900+662.2%Added
Zurcher Kantonalbank (Zurich Cantonalbank)6,893$164.0K0.00%−1,757−20.3%Reduced
UBS Group AG7,978$190.0K0.00%−220−2.7%Reduced
Tower Research Capital LLC (TRC)9,779$234.0K0.01%−53,454−84.5%Reduced
FDx Advisors, Inc.9,828$234.0K0.01%−3,699−27.3%Reduced
Virtus ETF Advisers LLC10,827$258.0K0.11%−1,268−10.5%Reduced
Walleye Trading LLC11,105$265.0K0.01%+11,105New
Public Employees Retirement Association of Colorado11,210$267.0K0.00%00.0%Unchanged
Y-Intercept (Hong Kong) Ltd11,484$274.0K0.07%+11,484New
Wolverine Trading, LLC12,340$295.0K0.01%−8,929−42.0%Reduced
TD Asset Management Inc41,725$296.0K0.00%00.0%Unchanged
Amalgamated Bank13,143$313.0K0.00%+13,143New
Raymond James & Associates13,203$315.0K0.00%+13,203New
Envestnet Asset Management Inc13,463$321.0K0.00%+714+5.6%Added
Vontobel Holding Ltd.13,774$329.0K0.00%+13,774New
Stifel Financial Corp14,163$338.0K0.00%−3,009−17.5%Reduced
Squarepoint Ops LLC14,358$342.0K0.00%−128,024−89.9%Reduced
SG Americas Securities, LLC15,260$364.0K0.00%−1,599−9.5%Reduced
Legal & General Group Plc15,549$371.0K0.00%+1,319+9.3%Added
Ironwood Investment Management LLC15,599$372.0K0.19%−373−2.3%Reduced
Victory Capital Management Inc15,797$377.0K0.00%−6,944−30.5%Reduced
Handelsbanken Fonder AB16,000$382.0K0.00%+2,000+14.3%Added
American Portfolios Advisors17,307$412.8K0.02%+349+2.1%Added
Russell Investments Group, Ltd.18,300$436.0K0.00%00.0%Unchanged
Arizona State Retirement System18,603$444.0K0.00%+90.0%Added
Metropolitan Life Insurance Co19,499$465.1K0.01%+4,630+31.1%Added
Cresset Asset Management, LLC20,243$483.0K0.01%−5,342−20.9%Reduced
Belvedere Trading LLC23,532$488.0K0.20%+23,532New
Blueshift Asset Management, LLC22,724$542.0K0.03%+22,724New
Barclays PLC24,362$582.0K0.00%−30,653−55.7%Reduced
MetLife Investment Management25,468$607.4K0.01%+3,824+17.7%Added
Erste Asset Management GmbH27,000$645.0K0.01%00.0%Unchanged
Voya Investment Management LLC27,336$652.0K0.00%+3,347+14.0%Added
Cubist Systematic Strategies, LLC27,691$660.0K0.01%+27,691New
State Board of Administration of Florida Retirement System28,998$692.0K0.00%+5,323+22.5%Added
Wells Fargo & Company29,061$693.0K0.00%−31,677−52.2%Reduced
Group One Trading, L.P.29,192$696.0K0.01%−32,768−52.9%Reduced
Pura Vida Investments, LLC30,000$716.0K0.05%+30,000New
AQR Capital Management LLC30,862$736.0K0.00%+10,340+50.4%Added
Connor, Clark & Lunn Investment Management Ltd.31,657$755.0K0.00%+31,657New
Invesco Ltd.33,645$802.0K0.00%+19,087+131.1%Added
Two Sigma Advisers, LP33,800$806.0K0.00%−85,400−71.6%Reduced
Hennion & Walsh Asset Management, Inc.34,301$818.0K0.04%+34,301New
ProShare Advisors LLC34,529$824.0K0.00%+7,143+26.1%Added
AtonRa Partners35,354$843.0K0.31%+13,592+62.5%Added
Parametric Portfolio Associates LLC37,406$892.0K0.00%+3,175+9.3%Added
American International Group, Inc.38,999$930.0K0.00%+6,808+21.1%Added
Manufacturers Life Insurance Company, The39,458$941.0K0.00%+7,979+25.3%Added
Edgewood Management LLC40,000$954.0K0.00%+15,000+60.0%Added
Bank Julius Baer & Co. Ltd, Zurich41,509$990.0K0.01%+11,259+37.2%Added
Credit Suisse AG42,810$1.02M0.00%−5,103−10.7%Reduced
CSS LLC44,240$1.05M0.06%+44,240New
HighVista Strategies LLC44,750$1.07M0.76%+44,750New
Deutsche Bank AG46,966$1.12M0.00%−15,948−25.3%Reduced
Jump Financial, LLC47,563$1.13M0.11%+20,311+74.5%Added
Simplex Trading, LLC49,282$1.18M0.04%+16,641+51.0%Added
HarbourVest Partners LLC49,363$1.18M0.11%00.0%Unchanged
D. E. Shaw & Co., Inc.52,480$1.25M0.00%+362+0.7%Added
Nuveen Asset Management, LLC283,356$1.31M0.00%+61,859+27.9%Added
Principal Financial Group Inc57,519$1.37M0.00%−1,064−1.8%Reduced
Eversept Partners, LP59,560$1.42M0.13%−155,716−72.3%Reduced
New York State Common Retirement Fund60,047$1.43M0.00%+8,747+17.1%Added
Sit Investment Associates Inc62,450$1.49M0.04%+62,450New
Caption Management, LLC62,936$1.50M0.13%+62,936New
Asymmetry Capital Management, L.P.63,259$1.51M1.04%+63,259New
Silverarc Capital Management, LLC63,915$1.52M0.80%−36,085−36.1%Reduced
DekaBank Deutsche Girozentrale65,000$1.53M0.00%00.0%Unchanged