Stephen W. Webster - 04 Apr 2025 Form 4 Insider Report for Gritstone bio, Inc. (GRTS)

Role
Director
Signature
/s/ Vassiliki Economides, Attorney-in-Fact for Stephen W. Webster
Issuer symbol
GRTS
Transactions as of
04 Apr 2025
Net transactions value
$0
Form type
4
Filing time
08 Apr 2025, 20:54:21 UTC
Previous filing
27 Jun 2024
Next filing
16 Jun 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GRTS Common Stock Other $0 -25,000 -100% $0.000000 0 04 Apr 2025 Direct F1

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) Other $0 -103,600 -100% $0.000000 0 04 Apr 2025 Common Stock 103,600 $0.8100 Direct F1, F2
transaction GRTS Stock Option (Right to Buy) Other $0 -7,379 -100% $0.000000 0 04 Apr 2025 Common Stock 7,379 $0.7600 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Stephen W. Webster is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Pursuant to the Issuer's Second Modified Plan of Reorganization pursuant to Chapter 11 of the Bankruptcy Code, which was confirmed by the United States Bankruptcy Court for the District of Delaware on April 3, 2025 and became effective on April 4, 2025, each share of the Issuer's common stock and options to purchase the Issuer's common stock outstanding prior to the Issuer's emergence from bankruptcy were cancelled for no value.
F2 The option vests as to 1/36th of the total grant monthly beginning May 26, 2024 until such time as the option is 100% vested, subject to the continued service of the Reporting Person on each vesting date.
F3 The option will vest and become exercisable on the earlier of (i) the first anniversary of the date of grant or (ii) the date of the next annual stockholder's meeting to the extent unvested as of such date, subject to continued service through the applicable vesting date.