MCRBSERES THERAPEUTICS INC
CUSIP 81750R201 · Yahoo Finance ↗ · Google Finance ↗
Seres Therapeutics Inc (MCRB) has 33 institutional holders in Filings Flow’s 13F database, together reporting 2.31M shares worth $21M as of Q1 2026. The largest reported holders are Flagship Pioneering, LLC, Vanguard Group Inc, and Vanguard Capital Management LLC.
Institutional Holders
33
Q1 2026
Reported Value
$21M
Ticker
MCRB
Quarters Tracked
3
Ownership Trend
Institutional holders
Total reported value
Holders
Mixed quarters
| Manager | % of Portfolio | Value | Shares | Quarter |
|---|---|---|---|---|
| Flagship Pioneering, LLC$1.2B AUM | 0.88% | $10M | 1.16M | Q1 2026OLDER |
| J. Goldman & Co LP$3.4B AUM | 0.04% | $2M | 88.9K | Q3 2025OLDER |
| 683 Capital Management, LLC$1.9B AUM | 0.03% | $778,432 | 52.3K | Q4 2025OLDER |
| HAP TRADING, LLC$1.4B AUM | 0.02% | $334,750 | 125.0K | Q3 2025OLDER |
| Hudson Bay Capital Management LP$29.0B AUM | 0.01% | $2M | 125.0K | Q3 2025OLDER |
| Caption Management, LLC$17.1B AUM | 0.01% | $1M | 75.0K | Q4 2025OLDER |
| Rachor Investment Advisory Services, LLC$203M AUM | 0.01% | $11,654 | 1.5K | Q2 2026 |
| Centiva Capital, LP$13.6B AUM | 0.00% | $481,000 | 25.0K | Q3 2025OLDER |
| Vontobel Holding Ltd.$29.1B AUM | 0.00% | $1M | 138.5K | Q1 2026OLDER |
| Schonfeld Strategic Advisors LLC$14.2B AUM | 0.00% | $432,961 | 29.1K | Q4 2025OLDER |
| OMERS ADMINISTRATION Corp$15.6B AUM | 0.00% | $214,272 | 14.4K | Q4 2025OLDER |
| ExodusPoint Capital Management, LP$12.6B AUM | 0.00% | $189,527 | 12.7K | Q4 2025OLDER |
| MARSHALL WACE, LLP$100.4B AUM | 0.00% | $1M | 139.5K | Q1 2026OLDER |
| SBI Securities Co., Ltd.$3.6B AUM | 0.00% | $30,885 | 3.5K | Q1 2026OLDER |
| AMERICAN CENTURY COMPANIES INC$194.3B AUM | 0.00% | $552,743 | 62.3K | Q1 2026OLDER |
| Belvedere Trading LLC$84.4B AUM | 0.00% | $234,728 | 12.2K | Q3 2025OLDER |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP$893.3B AUM | 0.00% | $2M | 226.9K | Q1 2026OLDER |
| Tower Research Capital LLC (TRC)$3.8B AUM | 0.00% | $7,043 | 794 | Q1 2026OLDER |
| Physician Wealth Advisors, Inc.$719M AUM | 0.00% | $1,260 | 142 | Q1 2026OLDER |
| TWO SIGMA INVESTMENTS, LP$123.9B AUM | 0.00% | $166,703 | 18.8K | Q1 2026OLDER |
| VANGUARD FIDUCIARY TRUST CO$396.1B AUM | 0.00% | $351,633 | 39.6K | Q1 2026OLDER |
| CITADEL ADVISORS LLC$618.5B AUM | 0.00% | $527,765 | 59.5K | Q1 2026OLDER |
| VANGUARD GROUP INC$6.90T AUM | 0.00% | $5M | 324.2K | Q4 2025OLDER |
| JANE STREET GROUP, LLC$777.2B AUM | 0.00% | $444,986 | 29.9K | Q4 2025OLDER |
| VANGUARD CAPITAL MANAGEMENT LLC$4.04T AUM | 0.00% | $3M | 294.1K | Q1 2026OLDER |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC$654.5B AUM | 0.00% | $280,558 | 31.6K | Q1 2026OLDER |
| GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM | 0.00% | $664,108 | 74.8K | Q1 2026OLDER |
| GOLDMAN SACHS GROUP INC$870.9B AUM | 0.00% | $213,379 | 14.3K | Q4 2025OLDER |
| CITIGROUP INC$234.5B AUM | 0.00% | $50,428 | 2.6K | Q3 2025OLDER |
| MORGAN STANLEY$1.67T AUM | 0.00% | $373,874 | 25.1K | Q1 2026OLDER |
| Invesco Ltd.$653.3B AUM | 0.00% | $129,032 | 14.5K | Q1 2026OLDER |
| SIMPLEX TRADING, LLC$149.1B AUM | 0.00% | $27,230 | 3.1K | Q1 2026OLDER |
| NORTHERN TRUST CORP$756.6B AUM | 0.00% | $130,966 | 14.8K | Q1 2026OLDER |
| BlackRock, Inc.$5.72T AUM | 0.00% | $904,970 | 102.0K | Q1 2026OLDER |
| GROUP ONE TRADING LLC$52.2B AUM | 0.00% | $7,309 | 824 | Q1 2026OLDER |
| BARCLAYS PLC$416.3B AUM | 0.00% | $57,717 | 6.5K | Q1 2026OLDER |
| STATE STREET CORP$2.90T AUM | 0.00% | $300,702 | 33.9K | Q1 2026OLDER |
| Vanguard Global Advisers, LLC$186.5B AUM | 0.00% | $17,518 | 2.0K | Q1 2026OLDER |
| UBS Group AG$666.3B AUM | 0.00% | $62,357 | 7.0K | Q1 2026OLDER |
| Sound Income Strategies, LLC$2.1B AUM | 0.00% | $71 | 8 | Q1 2026OLDER |
| BNP PARIBAS FINANCIAL MARKETS$205.8B AUM | 0.00% | $1,872 | 211 | Q1 2026OLDER |
| FMR LLC$1.90T AUM | 0.00% | $15,540 | 1.8K | Q1 2026OLDER |
| Arax Advisory Partners$3.5B AUM | 0.00% | $18 | 6 | Q1 2026OLDER |
| US BANCORP \DE\$82.4B AUM | 0.00% | $231 | 12 | Q3 2025OLDER |
| Federation des caisses Desjardins du Quebec$27.8B AUM | 0.00% | $58 | 3 | Q3 2025OLDER |
| BANK OF AMERICA CORP /DE/$1.37T AUM | 0.00% | $2,902 | 195 | Q4 2025OLDER |
| ROYAL BANK OF CANADA$570.1B AUM | 0.00% | $1,000 | 107 | Q1 2026OLDER |
| JPMORGAN CHASE & CO$1.56T AUM | 0.00% | $2,502 | 130 | Q3 2025OLDER |
| Allworth Financial LP$24.7B AUM | 0.00% | $36 | 4 | Q1 2026OLDER |
| OSAIC HOLDINGS, INC.$68.3B AUM | 0.00% | $70 | 8 | Q1 2026OLDER |
| WELLS FARGO & COMPANY/MN$530.3B AUM | 0.00% | $89 | 10 | Q2 2026 |
Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.