Who Owns Seres Therapeutics, Inc. (MCRB)?Hedge Fund & Institutional Holders
Institutional Holders
50
as of Q4 2025
Total Institutional Value
$1.0947000628800022e+136T
% of Float Held
—
QoQ Change in Holders
+12 / -5
Price History
MCRB — Biggest New Institutional Buyers This Quarter
| Fund | Action | Shares Added | Value Added |
|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New Position | +180K | +$2.0B |
| 683 Capital Management, LLC | New Position | +52K | +$778.0M |
| SBI Securities Co., Ltd. | New Position | +3K | +$51.0M |
| Invesco Ltd. | Increased | +4K | +$12.1M |
| Rachor Investment Advisory Services, LLC | New Position | +1K | +$21K |
| Physician Wealth Advisors, Inc. | New Position | +142 | +$2K |
| OMERS ADMINISTRATION Corp | New Position | +14K | +$0 |
| TWO SIGMA INVESTMENTS, LP | New Position | +26K | +$0 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | +1K | +$0 |
| HRT FINANCIAL LP | New Position | +63K | +$0 |
| Allworth Financial LP | New Position | +4 | +$0 |
| ExodusPoint Capital Management, LP | New Position | +13K | +$0 |
| AMERICAN CENTURY COMPANIES INC | New Position | +16K | +$0 |
| GOLDMAN SACHS GROUP INC | New Position | +14K | +$0 |
| BNP PARIBAS FINANCIAL MARKETS | Increased | +561 | +$-4K |
MCRB — Institutions Reducing or Closing Positions
| Fund | Action | Shares Sold | Value Sold |
|---|---|---|---|
| MARSHALL WACE, LLP | Decreased | -5K | -$2.4B |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Decreased | -34 | -$604.2M |
| J. Goldman & Co LP | Closed Position | -27K | -$519.5M |
| UBS Group AG | Decreased | -8K | -$184.0M |
| CITIGROUP INC | Closed Position | -3K | -$50.4M |
| ROYAL BANK OF CANADA | Decreased | -287 | -$6.0M |
| JPMORGAN CHASE & CO | Closed Position | -65 | -$1.0M |
| US BANCORP \DE\ | Closed Position | -12 | -$231K |
| BANK OF AMERICA CORP /DE/ | Decreased | -5K | -$101K |
| FMR LLC | Decreased | -142 | -$35K |
| SIMPLEX TRADING, LLC | Decreased | -2K | -$0 |
| Federation des caisses Desjardins du Quebec | Closed Position | -3 | -$0 |
Top Institutional Holders(Q4 2025)
MCRB Institutional Ownership History
| Quarter | Holders | Total Value | Change |
|---|---|---|---|
| Q4 2025 | 37 | $21.3B | +7 |
| Q3 2025 | 30 | $30.1B | +3 |
| Q2 2025 | 27 | $18.4B | +23 |
| Q1 2025 | 4 | $101.8M | — |
Similar Stocks by Institutional Ownership
As of Q4 2025, 50 institutional investors hold MCRB (Seres Therapeutics, Inc.). The largest holder is Flagship Pioneering, LLC with $10.9B in shares. This quarter, 12 institutions opened new positions and 5 closed their positions.
Frequently Asked Questions
How many hedge funds own MCRB?
As of Q4 2025, 50 institutional investors report holding MCRB (Seres Therapeutics, Inc.) in their 13F filings.
Who is the largest institutional holder of MCRB?
The largest institutional holder of MCRB is Flagship Pioneering, LLC with $10.9B in shares.
Is institutional ownership of MCRB increasing or decreasing?
This quarter, 12 institutions opened new positions in MCRB and 5 closed their positions.