Greedy Insider
GRAIL, Inc. (GRAL) Insider Trades and Scores
GRAIL, Inc. (GRAL) insider trades: since Dec 3, 2025, Greedy Insider recorded 20 open-market buys and 46 sales on Form 4 from 8 insiders. The strongest recent filing scored 90 (Strong).
Who bought and who sold
Across the last 66 scoreable Form 4 transactions in GRAL, 20 were open-market purchases and 46 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| SUMME GREGORY L | Director | Buy | 237.0 | 32104.02 | 2026-10-15 | 56 | View |
| CHASE WILLIAM J | Director | Buy | 153.0 | 20725.38 | 2026-10-15 | 53 | View |
| Ofman Joshua J. | CEO | Sell | 400.0 | 53247.0 | 2026-10-15 | 62 | View |
| Ofman Joshua J. | CEO | Sell | 1000.0 | 134384.3 | 2026-10-15 | 62 | View |
| Ofman Joshua J. | CEO | Sell | 3400.0 | 460507.9 | 2026-10-15 | 68 | View |
| Ofman Joshua J. | CEO | Sell | 7052.0 | 964945.6 | 2026-10-15 | 73 | View |
| Ofman Joshua J. | CEO | Sell | 6034.0 | 830465.44 | 2026-10-15 | 72 | View |
| Ofman Joshua J. | CEO | Sell | 2114.0 | 293394.44 | 2026-10-15 | 65 | View |
| MIZELL STEVEN | Director | Buy | 148.0 | 20048.08 | 2026-10-15 | 53 | View |
| Partridge Andrew John | Chief Growth Officer | Sell | 7873.0 | 1152528.5 | 2026-10-05 | 76 | View |
The strongest recent filing
Ofman Joshua J. (President) sold 61,665 shares of GRAIL, Inc. on Apr 8, 2026, a filing that scored 90 (Strong). It scored Strong because a senior insider was trading and it was direct personal ownership. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 3 insiders (Freidin Aaron, RAGUSA ROBERT P, Ofman Joshua J.) traded GRAL the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with GRAIL, Inc.'s own history
Open-market buys make up 30% of the 66 scoreable GRAL transactions on record between Dec 3, 2025 and Oct 15, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 66
- Open-market buys: 20
- Sales: 46
- Distinct insiders: 8
- Strongest recent Greediness Score: 90 (Strong)
Primary sources
Related
- Strongest filing
- GRAL in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.