Raphael Rousseau - May 27, 2021 Form 4 Insider Report for Gritstone bio, Inc. (GRTS)

Signature
/s/ Rahsaan Thompson, Attorney-in-Fact for Raphael Rousseau
Stock symbol
GRTS
Transactions as of
May 27, 2021
Transactions value $
-$23,911
Form type
4
Date filed
6/3/2021, 06:34 PM
Previous filing
Nov 19, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GRTS Common Stock Options Exercise $2.2K +2.9K $0.76 2.9K May 27, 2021 Direct
transaction GRTS Common Stock Sale -$26.1K -2.9K -100% $9.00* 0 May 27, 2021 Direct

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) Options Exercise $0 -2.9K -2.31% $0.00 122K May 27, 2021 Common Stock 2.9K $0.76 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Fully exercisable.

Remarks:

Executive Vice President and Chief Medical Officer