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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
Allspring Global Investments Holdings, LLC1$40.00%−1,983−99.9%Reduced
Parallel Advisors, LLC16$770.00%−23−59.0%Reduced
Newbridge Financial Services Group, Inc.55$2630.00%00.0%Unchanged
ICA Group Wealth Management, LLC75$3590.00%+75New
Sound Income Strategies, LLC175$8380.00%00.0%Unchanged
Impact Partnership Wealth, LLC209$1.00K0.00%+209New
Fiduciary Alliance LLC232$1.11K0.00%+232New
Larson Financial Group LLC235$1.13K0.00%00.0%Unchanged
Kelly Financial Services LLC240$1.15K0.00%00.0%Unchanged
Sandy Spring Bank345$1.65K0.00%00.0%Unchanged
Lindbrook Capital, LLC355$1.70K0.00%−107−23.2%Reduced
Daiwa Securities Group Inc.501$2.00K0.00%00.0%Unchanged
First Horizon Advisors, Inc.900$4.31K0.00%+900New
Massmutual Trust Co FSB914$4.38K0.00%+914New
China Universal Asset Management Co., Ltd.1,676$8.03K0.00%−12−0.7%Reduced
Nisa Investment Advisors, LLC2,671$12.8K0.00%+2,081+352.7%Added
Venturi Wealth Management, LLC4,000$19.2K0.00%−16,000−80.0%Reduced
Tower Research Capital LLC (TRC)4,013$19.2K0.00%−499−11.1%Reduced
Metropolitan Life Insurance Co5,330$25.5K0.00%+1,488+38.7%Added
Cutler Group LP6,300$30.0K0.01%+2,500+65.8%Added
Royal Bank of Canada7,411$35.0K0.00%+3,267+78.8%Added
Macroview Investment Management LLC7,788$37.3K0.06%+2,038+35.4%Added
Ameritas Investment Partners, Inc.8,033$38.5K0.00%+2,576+47.2%Added
Coppell Advisory Solutions LLC8,342$39.4K0.01%+8,342New
Diversified Trust Co10,000$47.9K0.00%+10,000New
Raymond James & Associates10,052$48.1K0.00%+10,052New
Victory Capital Management Inc10,231$49.0K0.00%−238−2.3%Reduced
Aigen Investment Management, LP11,113$53.2K0.01%+11,113New
Public Employees Retirement Association of Colorado11,210$54.0K0.00%00.0%Unchanged
Amalgamated Bank11,835$57.0K0.00%+2,067+21.2%Added
Clearwater Capital Advisors, LLC12,364$59.2K0.01%00.0%Unchanged
Arete Wealth Advisors, LLC12,500$60.0K0.01%+12,500New
Man Group plc13,181$63.1K0.00%+13,181New
Pictet Asset Management SA13,692$65.6K0.00%00.0%Unchanged
Alpine Global Management, LLC14,166$67.9K0.02%+14,166New
Wolverine Trading, LLC15,503$72.7K0.00%+2,023+15.0%Added
Auour Investments LLC17,000$81.4K0.03%+17,000New
Creative Planning17,304$82.9K0.00%+17,304New
Virtus ETF Advisers LLC17,768$85.1K0.05%+1,425+8.7%Added
Aries Wealth Management18,000$86.2K0.03%+6,000+50.0%Added
Russell Investments Group, Ltd.18,300$87.7K0.00%00.0%Unchanged
PFG Investments, LLC19,500$93.4K0.02%−1,000−4.9%Reduced
AQR Capital Management LLC19,707$94.4K0.00%+19,707New
ProShare Advisors LLC20,927$100.2K0.00%+3,997+23.6%Added
HighTower Advisors, LLC21,000$101.0K0.00%+6,500+44.8%Added
Jump Financial, LLC22,516$107.9K0.00%+22,516New
Graham Capital Management, L.P.24,881$119.2K0.00%+24,881New
Teacher Retirement System of Texas27,360$131.0K0.00%−3,345−10.9%Reduced
Arizona State Retirement System28,330$135.7K0.00%−550−1.9%Reduced
State Board of Administration of Florida Retirement System29,008$138.9K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)30,593$146.5K0.00%+6,583+27.4%Added
Kestra Advisory Services, LLC31,381$150.3K0.00%+31,381New
Delphia (USA) Inc.33,913$162.4K0.26%+33,913New
Vontobel Holding Ltd.35,865$171.8K0.00%+15,326+74.6%Added
New York State Common Retirement Fund38,590$184.8K0.00%+6,020+18.5%Added
Voya Investment Management LLC38,792$185.8K0.00%+11,203+40.6%Added
Oppenheimer & Co Inc38,819$185.9K0.00%+1,708+4.6%Added
Manufacturers Life Insurance Company, The39,936$191.3K0.00%+11,309+39.5%Added
Invesco Ltd.41,096$196.9K0.00%+6,069+17.3%Added
E Fund Management Co., Ltd.41,581$199.0K0.02%+27,996+206.1%Added
Citadel Advisors LLC41,773$200.1K0.00%−487,920−92.1%Reduced
Great West Life Assurance Co42,609$205.0K0.00%+15,518+57.3%Added
Dynamic Technology Lab Private Ltd43,631$209.0K0.03%+43,631New
Cambridge Investment Research Advisors, Inc.44,844$215.0K0.00%+44,844New
Principal Financial Group Inc45,205$216.5K0.00%+8,013+21.5%Added
American International Group, Inc.46,820$224.3K0.00%+12,814+37.7%Added
Ironwood Investment Management LLC46,961$224.9K0.13%−835−1.7%Reduced
Deutsche Bank AG48,451$232.1K0.00%−12,762−20.8%Reduced
HarbourVest Partners LLC49,363$236.4K0.07%00.0%Unchanged
Edgewood Management LLC50,000$239.5K0.00%−50,000−50.0%Reduced
MetLife Investment Management51,439$246.4K0.00%+13,822+36.7%Added
Clear Creek Financial Management, LLC54,200$259.6K0.04%+54,200New
Simplex Trading, LLC61,020$292.0K0.01%−54,080−47.0%Reduced
Corton Capital Inc.65,772$315.0K0.15%+65,772New
UBS Group AG73,231$350.8K0.00%−36,872−33.5%Reduced
Mirae Asset Global Investments Co., Ltd.79,444$377.9K0.00%+17,204+27.6%Added
Jane Street Group, LLC79,833$382.4K0.00%+40,253+101.7%Added
Cubist Systematic Strategies, LLC85,661$410.3K0.00%+75,893+777.0%Added
Legal & General Group Plc86,647$415.0K0.00%+44,344+104.8%Added
State of Wisconsin Investment Board87,334$418.3K0.00%−4,598−5.0%Reduced
Janney Montgomery Scott LLC90,285$432.0K0.00%−11,996−11.7%Reduced
Mach-1 Financial Group, Inc.94,961$454.9K0.18%+94,961New
AE Wealth Management LLC95,188$456.0K0.00%+95,188New
Cantor Fitzgerald, L. P.97,407$466.6K0.01%+97,407New
Natixis99,000$474.2K0.00%+99,000New
Occudo Quantitative Strategies LP102,608$491.5K0.05%+102,608New
Alliancebernstein L.P.104,100$498.6K0.00%00.0%Unchanged
UBS Asset Management Americas Inc94,095$533.5K0.00%00.0%Unchanged
LPL Financial LLC115,058$551.1K0.00%+19,388+20.3%Added
California State Teachers Retirement System121,109$580.1K0.00%+7,351+6.5%Added
Harvard Management Co Inc131,847$632.0K0.06%00.0%Unchanged
Rhumbline Advisers134,800$645.7K0.00%+40,498+42.9%Added
Parallax Volatility Advisers, L.P.134,901$646.2K0.02%+134,901New
Alpha DNA Investment Management LLC138,536$663.6K0.38%+138,536New
Profund Advisors LLC139,249$667.0K0.04%+94,390+210.4%Added
JPMorgan Chase & Co139,999$670.6K0.00%−484,022−77.6%Reduced
BNP Paribas Arbitrage, SA154,663$740.8K0.00%+59,124+61.9%Added
Credit Suisse AG170,782$818.0K0.00%+47,992+39.1%Added
Wells Fargo & Company171,808$823.0K0.00%+116,885+212.8%Added
Advisor Group Holdings, Inc.189,181$906.1K0.00%+188,139+18,055.6%Added