WEBSTER STEPHEN W

PrivateCIK: 1438421
Location

CAMBRIDGE, MA

WEBSTER STEPHEN W reported 1 transaction at GRITSTONE BIO, INC.

Review the transaction codes below to understand the nature of each event.

InsiderWEBSTER STEPHEN WCIK 1438421
IssuerGRITSTONE BIO, INC.CIK 1656634
Director
Since Apr 2024
-135.98K
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
3
Total transactions
135.98K disposed
Non-Derivative Transactions1

Common Stock

Direct
J · J

Shares

25K

Price / share

Trade value

% of position

New position
4/4/2025
25K0.00
Total

Net shares

25K

Net value

$0.00

Derivative Transactions2

Stock Option (Right to Buy)

Direct
J · J
Converts to

Common Stock

103.60K shares

Shares

103.60K

Strike price

.81

Held after

0.00

Exercisable

4/4/2025

Stock Option (Right to Buy)

Direct
J · J
Converts to

Common Stock

7.38K shares

Shares

7.38K

Strike price

.76

Held after

0.00

Exercisable

4/4/2025
WEBSTER STEPHEN W — Insider Transaction (Form 4) Filed Apr 8, 2025 | Finecho