Keutzer Timothy 4
4 · Spero Therapeutics, Inc. · Filed Sep 3, 2025
Insider Transaction Report
Form 4
Keutzer Timothy
Chief Operating Officer
Transactions
- Sale
Common Stock
2025-08-28$1.97/sh−1,695$3,339→ 739,744 total
Footnotes (1)
- [F1]The reported transaction is a sale of common stock effected to cover tax withholding obligations pursuant to a "sell to cover" provision included in each RSU Agreement in connection with the vesting of restricted stock units ("RSUs") that were granted to the Reporting Person on August 26, 2021.