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SEC Form 4 documents direct changes in beneficial ownership of securities for public corporations. The reporting insider, VINK PATRICK V.J.J., holds the title of Director at Spero Therapeutics, Inc..
On 2026-06-23, the insider transacted 10,000 shares.This transaction is a non-open-market event (such as a stock grant or option exercise) with a reported price per share of $0.00.
VINK PATRICK V.J.J. (Director) was granted $0 of $SPRO
Verify the accuracy of this insider transaction and corporate entity independently. HillSignal pulls data directly from official SEC databases; use the sources below to corroborate.