GRAIL, LLC
Ownership
Ownership Structure
Who owns GRAIL, LLC (GRAL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 76.9% of the shares are freely tradable; institutional investors hold 83.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Farallon Capital Management, L.L.C. | 9.32 | 4,161,584 | +27.9 | 06/30/2026 |
| Baker Bros Advisors LP | 9.02 | 4,028,614 | +0.0 | 06/30/2026 |
| BlackRock Inc | 8.01 | 3,577,075 | +20.5 | 06/30/2026 |
| Fort Hoosac Management, LLC | 6.95 | 3,102,891 | +199.9 | 06/30/2026 |
| State Street Corp | 5.34 | 2,385,514 | +26.1 | 06/30/2026 |
| PRIMECAP Management Company | 4.88 | 2,180,106 | +18.2 | 06/30/2026 |
| Sessa Capital, L.P | 4.56 | 2,037,518 | +18.5 | 06/30/2026 |
| Deep Track Capital, LP | 4.11 | 1,834,944 | +6.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.67 | 1,641,117 | +7.5 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| PRIMECAP Odyssey Aggressive Growth | 3.54 | 1,579,791 | +20.6 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Ofman Joshua J. | Chief Executive Officer | 342,271 | 45,795,860 $ | Oct 15, 2026 | direct |
| Freidin Aaron | Chief Financial Officer | 225,364 | 30,153,703 $ | Oct 5, 2026 | direct |
| Partridge Andrew John | Chief Growth Officer | 155,865 | 20,854,737 $ | Oct 5, 2026 | direct |
| Summe Gregory L | Director | 45,909 | 6,142,624 $ | Oct 15, 2026 | direct |
| Chase William J | Director | 43,131 | 5,770,928 $ | Oct 15, 2026 | direct |
| Mizell Steven | Director | 42,978 | 5,750,456 $ | Oct 15, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | Summe Gregory L | Director | Other | 237 | 135.46 | 32,104 |
| Oct 15, 2026 | Chase William J | Director | Other | 153 | 135.46 | 20,725 |
| Oct 15, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 2,114 | 138.79 | 293,394 |
| Oct 15, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 6,034 | 137.63 | 830,465 |
| Oct 15, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 7,052 | 136.83 | 964,946 |
| Oct 15, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 3,400 | 135.44 | 460,508 |
| Oct 15, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 1,000 | 134.38 | 134,384 |
| Oct 15, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 400 | 133.12 | 53,247 |
| Oct 15, 2026 | Mizell Steven | Director | Other | 148 | 135.46 | 20,048 |
| Oct 5, 2026 | Partridge Andrew John | Chief Growth Officer | Sell | 7,873 | 146.39 | 1,152,528 |
| Oct 5, 2026 | Freidin Aaron | Chief Financial Officer | Sell | 23,619 | 146.39 | 3,457,585 |
| Sep 21, 2026 | Freidin Aaron | Chief Financial Officer | Sell | 521 | 95.00 | 49,495 |
| Sep 21, 2026 | Freidin Aaron | Chief Financial Officer | Sell | 1,800 | 93.92 | 169,048 |
| Sep 21, 2026 | Freidin Aaron | Chief Financial Officer | Sell | 1,779 | 92.26 | 164,136 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 10,000 | 110.00 | 1,100,000 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 2,100 | 100.68 | 211,429 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 421 | 99.85 | 42,037 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 1,400 | 97.84 | 136,978 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 6,200 | 96.43 | 597,871 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 37,752 | 94.98 | 3,585,791 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 1,454 | 93.61 | 136,103 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 2,125 | 92.32 | 196,170 |
| Sep 21, 2026 | Ofman Joshua J. | Chief Executive Officer | Other | 26,452 | 14.00 | 370,328 |
| Aug 27, 2026 | Ofman Joshua J. | Chief Executive Officer | Sell | 5,000 | 85.02 | 425,098 |
| Aug 27, 2026 | Freidin Aaron | Chief Financial Officer | Sell | 7,900 | 85.01 | 671,579 |
| Jul 15, 2026 | Chase William J | Director | Other | 276 | 74.36 | 20,523 |
| Jul 15, 2026 | Summe Gregory L | Director | Other | 427 | 74.36 | 31,752 |
| Jul 15, 2026 | Mizell Steven | Director | Other | 268 | 74.36 | 19,928 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.