3 insiders reported 4 Form 4 transactions for Gritstone bio, Inc. (GRTS) over the past 18 months (most recent 2025-04-08). Recent activity: Cho James (SVP, CHIEF ACCOUNTING OFFICER) Sell 155,123 shares, Economides Vassiliki (EVP, CHIEF FINANCIAL OFFICER) Sell 250,437 shares, Webster Stephen W (Director) Sell 25,000 shares, Economides Vassiliki (EVP, CHIEF FINANCIAL OFFICER) Sell 12,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-04-08 | Cho James | SVP, CHIEF ACCOUNTING OFFICER | Sell | 155,123 | $0 |
| 2025-04-08 | Economides Vassiliki | EVP, CHIEF FINANCIAL OFFICER | Sell | 250,437 | $0 |
| 2025-04-08 | Webster Stephen W | Director | Sell | 25,000 | $0 |
| 2024-12-20 | Economides Vassiliki | EVP, CHIEF FINANCIAL OFFICER | Sell | 12,000 | $240 |
Source: SEC Form 4 filings · as of 2025-04-08
