Kathleen Tregoning - 11 Nov 2021 Form 4 Insider Report for Spero Therapeutics, Inc. (SPRO)

Role
Director
Signature
/s/ Tamara Joseph, Attorney-in-Fact for Kathleen Tregoning
Issuer symbol
SPRO
Transactions as of
11 Nov 2021
Net transactions value
$0
Form type
4
Filing time
12 Nov 2021, 15:14:29 UTC
Previous filing
14 Oct 2021
Next filing
07 Jan 2022
SEC
View on sec.gov

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SPRO Stock Option (right to buy) Award $0 +15,000 $0.000000 15,000 11 Nov 2021 Common Stock 15,000 $16.91 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The shares underlying this option will vest in thirty-six equal monthly installments at the end of each successive month following November 11, 2021, subject to the Reporting Person's continued service as a director through the applicable vesting dates.