Rajavelu Esther sold SPRO
February 6, 2026 · Form 4 insider transaction
Rajavelu Esther sold 37,101 shares of Spero Therapeutics, Inc. at $2.36 per share, a transaction worth $87.6K. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 3 days after the transaction.
Direction
Disposed (sell-side)
Shares
37,101
Price
$2.36
Total value
$87.6K
InsiderRajavelu Esther
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateFebruary 6, 2026
Filing dateFebruary 9, 2026
Shares owned after1,062,907
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of RSUs. The sale occurred automatically to satisfy the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.