Data as of Q4 2025 (Dec 31, 2025)
MCRB

SERES THERAPEUTICS INC

Institutional Ownership · Q4 2025

Filing: Q4 2025

SERES THERAPEUTICS INC (MCRB) is held by 38 institutional investors with combined holdings of $40M. Major holders include Flagship Pioneering, LLC, VANGUARD GROUP INC, GROUP ONE TRADING LLC.

💰 Dark Pool Activity👤 Insider Trades
Institutional Holders
38
Total Value
$40.0M
Ownership %
27.9%

🏦 Top Institutional Holders

Flagship Pioneering, LLC
1.2M shares
$17.2M
12.00% ownership
VANGUARD GROUP INC
324.2K shares
$4.8M
3.37% ownership
GROUP ONE TRADING LLC
151.2K shares
$2.2M
1.57% ownership
MARSHALL WACE, LLP
120.2K shares
$1.8M
1.25% ownership
BlackRock, Inc. (BLK)
103.6K shares
$1.5M
1.08% ownership

📊 Financials

Income statement, balance sheet, and cash flow from SEC filings.

🏦 Browse Funds

See complete portfolios of top hedge funds.

🎯 AI Signals

Find stocks where multiple funds are accumulating.