Shaff Eric D. sold MCRB
November 15, 2025 · Form 4 insider transaction
Shaff Eric D. sold 217 shares of Seres Therapeutics, Inc. at $17.30 per share, a transaction worth $3.8K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 3 days after the transaction.
Direction
Disposed (sell-side)
Shares
217
Price
$17.30
Total value
$3.8K
InsiderShaff Eric D.
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateNovember 15, 2025
Filing dateNovember 18, 2025
Shares owned after11,113
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on March 2, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.