Ragusa Robert P insider trades
Ragusa Robert P has filed 18 Form 4s with the SEC that we hold, for GRAIL, Inc. (GRAL) (Chief Executive Officer, Director) and Twist Bioscience Corp (TWST) (Director). Across all of them we count 0 purchases worth $0 and 16 sales worth $18.2M reported on Form 4. In the last 12 months: 0 purchases ($0) and 11 sales ($12.8M). The largest single trade was a sale of 123,502 shares of GRAIL, Inc. worth $6.2M, dated 2026-04-08. The first filing on our record is dated 2022-02-10 and the latest 2026-04-09.
GRAIL, Inc. (GRAL)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-10-15 | S, sale reported on Form 4 | 123,454 | $1.7M | 2024-10-17 |
| 2025-03-05 | S, sale reported on Form 4 | 994 | $41.3K | 2025-03-06 |
| 2025-03-07 | S, sale reported on Form 4 | 7,625 | $238.0K | 2025-03-12 |
| 2025-03-11 | S, sale reported on Form 4 | 7,625 | $238.0K | 2025-04-03 |
| 2025-05-02 | S, sale reported on Form 4 | 94,035 | $3.2M | 2025-05-05 |
| 2025-10-15 | S, sale reported on Form 4 | 7,239 | $498.6K | 2025-10-16 |
| 2025-12-03 | S, sale reported on Form 4 | 8,233 | $792.2K | 2025-12-05 |
| 2025-12-03 | S, sale reported on Form 4 | 1,604 | $156.0K | 2025-12-05 |
| 2025-12-03 | S, sale reported on Form 4 | 15,356 | $1.5M | 2025-12-05 |
| 2025-12-03 | S, sale reported on Form 4 | 14,807 | $1.4M | 2025-12-05 |
| 2026-03-02 | S, sale reported on Form 4 | 1,717 | $89.0K | 2026-03-03 |
| 2026-03-02 | S, sale reported on Form 4 | 35,787 | $1.8M | 2026-03-03 |
| 2026-03-05 | S, sale reported on Form 4 | 980 | $51.9K | 2026-03-09 |
| 2026-03-09 | S, sale reported on Form 4 | 258 | $12.1K | 2026-03-09 |
| 2026-03-09 | S, sale reported on Form 4 | 7,203 | $345.2K | 2026-03-09 |
| 2026-04-08 | S, sale reported on Form 4 | 123,502 | $6.2M | 2026-04-09 |
Twist Bioscience Corp (TWST)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Counted from the Form 4 filings this reporting owner (SEC CIK 1222644) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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