HENN MATTHEW R

PrivateCIK: 1767321
Location

CAMBRIDGE, MA

InsiderHENN MATTHEW RCIK 1767321
IssuerSERES THERAPEUTICS, INC.CIK 1609809
Officer· Chief Scientific Officer
Since Feb 2019
+75K
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
75K acquired
Non-Derivative Transactions0
No non-derivative transactions reported
Derivative Transactions1

Stock Option (right to buy)

Direct
A · Award
Converts to

Common Stock

75K shares

Shares

+75K

Strike price

9.13

Held after

75K

Exercisable

3/4/2026
HENN MATTHEW R — Insider Transaction (Form 4) Filed Mar 6, 2026 | Finecho