GRTS insider transaction filings
Gritstone bio, Inc. — 29 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2025-04-08. Screen GRTS transaction legs live →
Insider transaction summary — last 90 days
No Form 4 filings for GRTS between 2026-06-24 and 2026-09-22. The table below lists the most recent filings on record.
Recent Form 4 filings — Gritstone bio, Inc.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2025-04-08 | 4 | Rizvi Naiyer — Director | Other (J): 51,800 (derivative) @ $0 · Other (J): 51,800 (derivative) @ $0 · Other (J): 19,000 (derivative) @ $0 · Other (J): 7,500 (derivative) @ $0 · Other (J): 38,000 (derivative) @ $0 · Other (J): 937 (derivative) @ $0 · +2 more | EDGAR |
| 2025-04-08 | 4 | Economides Vassiliki — EVP, CHIEF FINANCIAL OFFICER | Other (J): 250,437 @ $0 · Other (J): 215,000 (derivative) @ $0 · Other (J): 215,000 (derivative) @ $0 · Other (J): 138,000 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Cho James — SVP, CHIEF ACCOUNTING OFFICER | Other (J): 155,123 @ $0 · Other (J): 109,000 (derivative) @ $0 · Other (J): 65,400 (derivative) @ $0 · Other (J): 26,300 (derivative) @ $0 · Other (J): 25,000 (derivative) @ $0 · Other (J): 40,000 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Fisher Clare — Director | Other (J): 38,000 (derivative) @ $0 · Other (J): 8,693 (derivative) @ $0 · Other (J): 51,800 (derivative) @ $0 · Other (J): 51,800 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Corey Lawrence — Director | Other (J): 51,800 (derivative) @ $0 · Other (J): 51,800 (derivative) @ $0 · Other (J): 38,000 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Agarwal Shefali — Director | Other (J): 51,800 (derivative) @ $0 · Other (J): 51,800 (derivative) @ $0 · Other (J): 38,000 (derivative) @ $0 · Other (J): 937 (derivative) @ $0 · Other (J): 19,000 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Webster Stephen W — Director | Other (J): 25,000 @ $0 · Other (J): 103,600 (derivative) @ $0 · Other (J): 7,379 (derivative) @ $0 | EDGAR |
| 2025-04-08 | 4 | Jones Elaine V — Director | Other (J): 51,800 (derivative) @ $0 · Other (J): 51,800 (derivative) @ $0 · Other (J): 19,000 (derivative) @ $0 · Other (J): 19,000 (derivative) @ $0 · Other (J): 12,500 (derivative) @ $0 · Other (J): 15,942 (derivative) @ $0 | EDGAR |
| 2024-12-20 | 4 | Economides Vassiliki — EVP, CHIEF FINANCIAL OFFICER | Sale (S): 12,000 @ $0.01 | EDGAR |
| 2024-06-26 | 4 | Allen Andrew R — PRESIDENT AND CEO, Director | Gift (G): 325,000 @ $0 · Gift (G): 325,000 @ $0 | EDGAR |
| 2024-06-20 | 4 | Fisher Clare — Director | Grant/award (A): 51,800 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Agarwal Shefali — Director | Grant/award (A): 51,800 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Corey Lawrence — Director | Grant/award (A): 51,800 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Rizvi Naiyer — Director | Grant/award (A): 51,800 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Webster Stephen W — Director | Grant/award (A): 7,379 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Jones Elaine V — Director | Grant/award (A): 51,800 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | Cho James — SVP, CHIEF ACCOUNTING OFFICER | Grant/award (A): 10,800 @ $0 · Grant/award (A): 65,400 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | Jones Erin — EVP, CHIEF OPERATING OFFICER | Grant/award (A): 27,128 @ $0 · Sale (S): 13,749 @ $0.75 · Grant/award (A): 235,000 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | Jooss Karin — SEE REMARKS | Grant/award (A): 27,128 @ $0 · Sale (S): 13,749 @ $0.75 · Grant/award (A): 235,000 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | Hawryluk Matthew — EVP, CHIEF BUSINESS OFFICER | Grant/award (A): 19,149 @ $0 · Sale (S): 9,259 @ $0.75 · Grant/award (A): 180,000 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | Economides Vassiliki — EVP, CHIEF FINANCIAL OFFICER | Grant/award (A): 27,128 @ $0 · Sale (S): 13,749 @ $0.75 · Grant/award (A): 215,000 (derivative) @ $0 | EDGAR |
| 2024-05-17 | 4 | Allen Andrew R — PRESIDENT AND CEO, Director | Grant/award (A): 47,873 @ $0 · Sale (S): 24,263 @ $0.75 · Grant/award (A): 615,000 (derivative) @ $0 | EDGAR |
| 2024-04-30 | 4 | Webster Stephen W — Director | Grant/award (A): 103,600 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Hawryluk Matthew — EVP, CHIEF BUSINESS OFFICER | Grant/award (A): 35,000 @ $0 · Grant/award (A): 180,000 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Jones Erin — EVP, CHIEF OPERATING OFFICER | Grant/award (A): 40,000 @ $0 · Grant/award (A): 235,000 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Economides Vassiliki — EVP, CHIEF FINANCIAL OFFICER | Grant/award (A): 35,000 @ $0 · Grant/award (A): 215,000 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Jooss Karin — SEE REMARKS | Grant/award (A): 40,000 @ $0 · Grant/award (A): 235,000 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Cho James — SVP, CHIEF ACCOUNTING OFFICER | Grant/award (A): 18,000 @ $0 · Grant/award (A): 109,000 (derivative) @ $0 | EDGAR |
| 2024-02-05 | 4 | Allen Andrew R — PRESIDENT AND CEO, Director | Grant/award (A): 105,000 @ $0 · Grant/award (A): 615,000 (derivative) @ $0 | EDGAR |
Recent 8-K events — Gritstone bio, Inc.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2025-04-04 | 8-K | 1.03 — Bankruptcy or Receivership 3.02 — Unregistered Sales of Equity Securities 3.03 — Material Modification to Rights of Security Holders 5.01 — Changes in Control of Registrant 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-02-25 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-02-14 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-01-03 | 8-K | 1.01 — Entry into a Material Definitive Agreement 1.03 — Bankruptcy or Receivership 2.01 — Completion of Acquisition or Disposition of Assets 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-12-13 | 8-K | 7.01 — Regulation FD Disclosure | EDGAR |
| 2024-11-29 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-11-15 | 8-K | 1.01 — Entry into a Material Definitive Agreement 1.03 — Bankruptcy or Receivership 2.03 — Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-10-16 | 8-K | ? 3.01 — Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing | EDGAR |
| 2024-10-10 | 8-K | 1.03 — Bankruptcy or Receivership 2.04 — Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2024-10-01 | 8-K | 8.01 — Other Events | EDGAR |
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