SERES THERAPEUTICS INC

$MCRB
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Institutional coverage

30 13F filers hold $MCRB.

13F holders
30
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

No exposure this quarter

No top-200 alpha managers currently hold $MCRB. The institutional holders table below shows the broader 13F picture.

Institutional holders

Top 10 of 30 · Source: 13F-HR
01
Peak6 LLC
0.88% of portfolio
1,466,414 sh
02
Minneapolis Portfolio Management Group, LLC
—
248,962 sh
03
Brightline Capital Management, LLC
—
170,100 sh
04
Kazazian Asset Management, LLC
—
138,468 sh
05
Massachusetts Institute of Technology
—
62,316 sh
06
Solus Alternative Asset Management LP
—
59,500 sh
07
State Street
—
33,901 sh
08
Axa S.a.
—
33,901 sh
09
Strs Ohio
—
31,630 sh
10
Mason Investment Advisory Services, Inc.
1.67% of portfolio
31,570 sh
See all 30 13F holders · Pro →

Insider activity · last 90 days

4 transactions · 4 filers
18 May 2026
Shaff Eric D. —
▼ SOLD
259
$7.53
S
18 May 2026
DesRosier Thomas —
▼ SOLD
79
$7.53
S
18 May 2026
Brady Kelly —
▼ SOLD
59
$7.53
S
18 May 2026
Henn Matthew R —
▼ SOLD
77
$7.53
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $MCRB in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 10:27 UTC.