Companies / Seres Therapeutics, Inc.

Seres Therapeutics, Inc.

Nasdaq: MCRBCIK 1609809CAMBRIDGE, MA

Financials · FY2025

Revenue$789.0K
Net income$5.70M
Total debt$110.00M
Cash$15.59M
Diluted EPS$0.64
Shares outstanding9.9M

Ownership

9.9M shares outstanding · as of Aug 3, 2026
0.36%Insiders
Ownership
Insiders0.36%35,600
Institutions24.64%2,449,589
Public float75.00%7,456,072

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 7

View all →
Insider% of sharesShares
Shaff Eric D.Director
0.12%11,577
Young Teresa L.See Remarks
0.09%8,557
DesRosier ThomasSee Remarks
0.08%7,789
Henn Matthew RSee Remarks
0.08%7,677
Brady KellyFormerSee Remarks
——
Kender Richard NSee Remarks · Director
——
Thorell MarellaSee Remarks
——

Institutional holders 36

View all →
HolderValue% of shares
Flagship Pioneering Fund VI, L.P.$10.25M11.63%
Vanguard Group Inc$4.82M3.26%
Susquehanna International Group, LLP$2.68M1.81%
Vontobel Holding Ltd.$1.54M1.04%
Marshall Wace, LLP$1.24M1.40%
BlackRock, Inc.$875.8K1.12%
683 Capital Management, LLC$778.4K0.53%
Geode Capital Management, LLC$664.1K0.75%
Lion Point Capital, LP$469.8K0.32%
Citadel Advisors LLC$467.5K0.32%

Activity

View all →
InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Feb 15, 2026Shaff Eric D.
Director
SellCommon Stock$2.2K-259
-2.19%
11,577
0.12% of shares
low
Feb 15, 2026Henn Matthew R
Executive
SellCommon Stock$754-89
-1.15%
7,677
0.08% of shares
low
Feb 15, 2026DesRosier Thomas
Executive
SellCommon Stock$661-78
-0.99%
7,789
0.08% of shares
low
Feb 15, 2026Young Teresa L.
Executive
SellCommon Stock$635-75
-0.87%
8,557
0.09% of shares
low
Mar 4, 2026Thorell Marella
Executive
GrantStock Option (right to buy)—+23K
22,500
0.23% of shares
low
Feb 15, 2026Young Teresa L.
Executive
ExerciseRestricted Stock Units—-98
-11.16%
780
<0.01% of shares
low
Feb 15, 2026Young Teresa L.
Executive
ExerciseRestricted Stock Units—-133
-20.03%
531
<0.01% of shares
low
Feb 15, 2026Young Teresa L.
Executive
ExerciseCommon Stock—+231
+2.75%
8,632
0.09% of shares
low

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
MCRBCommon StockEquity81750R201BBG0099X6859