LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
MCRBCIK 0001609809

Seres Therapeutics, Inc.

73 transactions by 13 insiders, from November 15, 2025 to August 17, 2026.

Transactions
7313 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$11Kopen market
Net
−$11Knet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Thomas DesRosierOfficer1917/19—$3K
Matthew R. HennOfficer1412/14—$2K
Eric D. ShaffDir1312/13—$5K
Kelly BradyOfficer104/10—$735
Teresa L. YoungOfficer44/4—$635
Marella ThorellOfficer2———
Dennis A. AusielloDir2———
Robert L. RosielloDir2———
Stephen BerensonDir2———
Richard N. KenderOfficer2———
Willard H. DereDir1———
Claire FraserDir1———
Kurt GravesDir1———

All transactions

73 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Eric D. ShaffDirDERIVAug 15MPLAN332$0.00—?
Eric D. ShaffDirDERIVAug 15MPLAN390$0.00—?
Eric D. ShaffDirAug 17SPLAN263$4.55$1K
Eric D. ShaffDirAug 15MPLAN722——
Matthew R. HennOfficerDERIVAug 15MPLAN98$0.00—?
Matthew R. HennOfficerDERIVAug 15MPLAN140$0.00—?
Matthew R. HennOfficerAug 17SPLAN81$4.55$369
Matthew R. HennOfficerAug 15MPLAN238——
Thomas DesRosierOfficerDERIVAug 15MPLAN112$0.00—?
Thomas DesRosierOfficerDERIVAug 15MPLAN133$0.00—?
Thomas DesRosierOfficerAug 17SPLAN82$4.55$373
Thomas DesRosierOfficerAug 15MPLAN245——
Kelly BradyOfficerDERIVAug 15MPLAN91$0.00—?
Kelly BradyOfficerDERIVAug 15MPLAN90$0.00—?
Kelly BradyOfficerAug 17SPLAN64$4.55$291
Kelly BradyOfficerAug 15MPLAN181——
Marella ThorellOfficerDERIVJul 8A7,500$0.00—?
Eric D. ShaffDirDERIVJul 8A6,500$0.00—?
Robert L. RosielloDirDERIVJul 8A6,500$0.00—?
Richard N. KenderOfficerDERIVJul 8A50,000$0.00—?
Matthew R. HennOfficerDERIVJul 8A25,000$0.00—?
Kurt GravesDirDERIVJul 8A6,500$0.00—?
Claire FraserDirDERIVJul 8A6,500$0.00—?
Thomas DesRosierOfficerDERIVJul 8A7,500$0.00—?
Willard H. DereDirDERIVJul 8A6,500$0.00—?
Kelly BradyOfficerDERIVJul 8A18,750$0.00—?
Stephen BerensonDirDERIVJul 8A6,500$0.00—?
Dennis A. AusielloDirDERIVJul 8A6,500$0.00—?
Robert L. RosielloDirDERIVJul 1A7,508$0.00—?
Stephen BerensonDirDERIVJul 1A7,508$0.00—?
Dennis A. AusielloDirDERIVJul 1A7,508$0.00—?
Eric D. ShaffDirDERIVMay 15MPLAN331$0.00—?
Eric D. ShaffDirDERIVMay 15MPLAN391$0.00—?
Eric D. ShaffDirMay 18SPLAN259$7.53$2K
Eric D. ShaffDirMay 15MPLAN722——
Matthew R. HennOfficerDERIVMay 15MPLAN97$0.00—?
Matthew R. HennOfficerDERIVMay 15MPLAN141$0.00—?
Matthew R. HennOfficerMay 18SPLAN77$7.53$580
Matthew R. HennOfficerMay 15MPLAN238——
Thomas DesRosierOfficerDERIVMay 15MPLAN111$0.00—?
Thomas DesRosierOfficerDERIVMay 15MPLAN133$0.00—?
Thomas DesRosierOfficerMay 18SPLAN79$7.53$595
Thomas DesRosierOfficerMay 15MPLAN244——
Kelly BradyOfficerDERIVMay 15M91$0.00—?
Kelly BradyOfficerDERIVMay 15M89$0.00—?
Kelly BradyOfficerMay 18S59$7.53$444
Kelly BradyOfficerMay 15M180——
Kelly BradyOfficerDERIVMar 4A56,250$0.00—?
Marella ThorellOfficerDERIVMar 4A22,500$0.00—?
Richard N. KenderOfficerDERIVMar 4A150,000$0.00—?
Matthew R. HennOfficerDERIVMar 4A75,000$0.00—?
Thomas DesRosierOfficerDERIVMar 4A22,500$0.00—?
Teresa L. YoungOfficerDERIVFeb 15MPLAN98$0.00—?
Teresa L. YoungOfficerDERIVFeb 15MPLAN133$0.00—?
Teresa L. YoungOfficerFeb 15SPLAN75$8.47$635
Teresa L. YoungOfficerFeb 15MPLAN231——
Eric D. ShaffDirDERIVFeb 15MPLAN333$0.00—?
Eric D. ShaffDirDERIVFeb 15MPLAN391$0.00—?
Eric D. ShaffDirFeb 15SPLAN259$8.47$2K
Eric D. ShaffDirFeb 15MPLAN723——
Matthew R. HennOfficerDERIVFeb 15MPLAN98$0.00—?
Matthew R. HennOfficerDERIVFeb 15MPLAN141$0.00—?
Matthew R. HennOfficerFeb 15SPLAN89$8.47$754
Matthew R. HennOfficerFeb 15MPLAN239——
Thomas DesRosierOfficerDERIVFeb 15MPLAN111$0.00—?
Thomas DesRosierOfficerDERIVFeb 15MPLAN133$0.00—?
Thomas DesRosierOfficerFeb 15SPLAN78$8.47$661
Thomas DesRosierOfficerFeb 15MPLAN244——
Thomas DesRosierOfficerDERIVNov 15MPLAN112$0.00—?
Thomas DesRosierOfficerDERIVNov 15MPLAN132$0.00—?
Thomas DesRosierOfficerNov 15SPLAN76$17.30$1K
Thomas DesRosierOfficerNov 15MPLAN112——
Thomas DesRosierOfficerNov 15MPLAN132——