VINK PATRICK V.J.J. bought SPRO

June 23, 2026 · Form 4 insider transaction

VINK PATRICK V.J.J. bought 10,000 shares of Spero Therapeutics, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction
Acquired (buy-side)
Shares
10,000
Price
$0.00
Total value
N/A
RoleDirector
SecurityCommon Stock
Transaction codeA: Grant or award
Transaction dateJune 23, 2026
Filing dateJune 25, 2026
Shares owned after85,000
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest on June 23, 2027, subject to the Reporting Person's continued service through the applicable vesting date.

View the original Form 4 on SEC EDGAR