Timothy Keutzer - 28 Aug 2023 Form 4 Insider Report for Spero Therapeutics, Inc. (SPRO)

Signature
/s/ Tamara Joseph, Attorney-in-Fact for Timothy Keutzer
Issuer symbol
SPRO
Transactions as of
28 Aug 2023
Net transactions value
-$2,336
Form type
4
Filing time
30 Aug 2023, 16:23:33 UTC
Previous filing
03 Feb 2023
Next filing
05 Feb 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SPRO Common Stock Sale $2,336 -1,854 -0.57% $1.26 325,290 28 Aug 2023 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reported transaction is a sale of common stock effected to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs") that were granted to the Reporting Person on August 26, 2021 pursuant to a "sell to cover" provision included in the RSU Agreement.