Vassiliki Economides - Jun 23, 2021 Form 4 Insider Report for Gritstone bio, Inc. (GRTS)

Role
EVP & CFO
Signature
/s/ Rahsaan Thompson, Attorney-in-Fact for Vassiliki Economides
Stock symbol
GRTS
Transactions as of
Jun 23, 2021
Transactions value $
$0
Form type
4
Date filed
6/25/2021, 05:09 PM
Next filing
Apr 20, 2022

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 GRTS Stock Option (Right to Buy) Award $0 +215K $0.00 215K Jun 23, 2021 Common Stock 215K $9.76 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The stock option vests and becomes exercisable with respect to 25% of the total number of shares on June 23, 2022. The remaining shares vest and become exercisable in equal monthly installments over the following 36 months.