Key facts
- GRAL - GRAIL, Inc. has 11 insiders with reported activity on this page.
- Net insider value flow over the last year: -$128,656,532.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 11 Insiders of GRAIL, Inc.
- Symbol
- GRAL on Nasdaq
- Location
- Menlo Park, CA
Change
- Buy value: ; sell value: $128,656,531.
- Net share flow: -1,875,522.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$128,656,532.
Buys
$0
Shares: 0
Insiders: 0
Sells
$128,656,532
Shares: 1,875,522
Insiders: 5
Net
-$128,656,532
Shares: -1,875,522
Insiders: -5
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 310,267 | $0 | $15,484,662 | -$15,484,662 |
| 3-6 | 0 | 78,000 | $0 | $7,588,352 | -$7,588,352 |
| 6-9 | 0 | 1,114,992 | $0 | $87,365,293 | -$87,365,293 |
| 9-12 | 0 | 372,263 | $0 | $18,218,224 | -$18,218,224 |
GRAIL, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| ILLUMINA, INC. | 10%+ Owner | $279,644,761 | -$79,850,000 | -22% | Filing P/S | 17 Nov 2025 |
| Chun R. Ding | 10%+ Owner | $166,079,013 | -$16,830,151 | -9.2% | Filing P/S | 01 Jul 2025 |
| Robert P. Ragusa | Chief Executive Officer, Director | $25,886,368 | -$12,763,744 | -33% | Filing P/S | 08 Apr 2026 |
| Joshua J. Ofman | President, Director | $18,530,211 | -$13,339,063 | -42% | Filing P/S | 08 Apr 2026 |
| Aaron Freidin | Chief Financial Officer | $13,011,970 | -$5,873,573 | -31% | Filing P/S | 08 Apr 2026 |
| Gregory L. Summe | Director | $2,054,546 | Median | 15 Apr 2026 | ||
| William J. Chase | Director | $1,923,120 | Median | 15 Apr 2026 | ||
| Steven Mizell | Director | $1,915,884 | Median | 15 Apr 2026 | ||
| Sarah Krevans | Director | $1,526,330 | Mixed | 29 May 2025 | ||
| Ankur Dhingra | Director | Mixed | 11 Jun 2024 | |||
| Charles Dadswell | Director | Mixed | 11 Jun 2024 |
Top shareholders of GRAIL, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BAKER BROS. ADVISORS LP |
13F
13D/G
|
Company |
9.8%
from 13D/G
|
4,028,614
|
$208,198,772 | — | 31 Mar 2026 | |
| Farallon Capital Partners, L.P. |
13D/G
|
Dapice Joshua J. |
7.8%
|
3,253,684
|
$148,465,601 | +$41,568,930 | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
6.5%
from 13D/G
|
2,968,536
|
$153,413,957 | — | 31 Mar 2026 | |
| CRCM LP |
13D/G
|
— |
5%
|
1,800,651
|
$106,472,314 | -$2,483,456 | 06 Oct 2025 | |
| PRIMECAP MANAGEMENT CO/CA/ |
13D/G
13F
|
Company |
4.7%
|
1,838,684
|
$184,052,268 | -$21,862,340 | 31 Dec 2025 | |
| Sessa Capital (Master), L.P. |
13D/G
|
— |
4.3%
|
1,508,077
|
$56,839,422 | $0 | 30 Apr 2025 | |
| ILLUMINA, INC. |
3/4/5
13D/G
|
10%+ Owner |
3.2%
from 13D/G
|
3,502,126
|
$279,644,761 | -$79,850,000 | 17 Nov 2025 | |
| Chun R. Ding |
3/4/5
|
10%+ Owner |
8%
|
3,305,055
|
$166,079,013 | -$16,830,151 | 01 Jul 2025 | |
| Robert P. Ragusa |
3/4/5
|
Chief Executive Officer, Director |
1.3%
|
518,582
|
$25,886,368 | -$12,763,744 | 08 Apr 2026 | |
| Joshua J. Ofman |
3/4/5
|
President, Director |
0.9%
|
371,216
|
$18,530,211 | -$13,339,063 | 08 Apr 2026 | |
| Aaron Freidin |
3/4/5
|
Chief Financial Officer |
0.63%
|
260,669
|
$13,011,970 | -$5,873,573 | 08 Apr 2026 | |
| Gregory L. Summe |
3/4/5
|
Director |
0.1%
|
39,754
|
$2,054,546 | — | 15 Apr 2026 | |
| William J. Chase |
3/4/5
|
Director |
0.09%
|
37,211
|
$1,923,120 | — | 15 Apr 2026 | |
| Sarah Krevans |
3/4/5
|
Director |
0.09%
|
37,137
|
$1,526,330 | — | 29 May 2025 | |
| Steven Mizell |
3/4/5
|
Director |
0.09%
|
37,071
|
$1,915,884 | — | 15 Apr 2026 | |
| FARALLON CAPITAL MANAGEMENT LLC |
13F
|
Company |
7.9%
|
3,253,684
|
$168,150,389 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
4.6%
|
1,891,893
|
$97,773,030 | — | 31 Mar 2026 | |
| Deep Track Capital, LP |
13F
|
Company |
4.2%
|
1,722,797
|
$89,034,149 | — | 31 Mar 2026 | |
| Sessa Capital IM, L.P. |
13F
|
Company |
4.2%
|
1,719,314
|
$88,854,148 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
4%
|
1,632,195
|
$84,351,938 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
3.7%
|
1,527,105
|
$78,920,786 | — | 31 Mar 2026 | |
| Arbiter Partners Capital Management LLC |
13F
|
Company |
2.5%
|
1,034,597
|
$53,467,973 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
2.2%
|
914,114
|
$47,241,412 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2%
|
827,942
|
$42,794,349 | — | 31 Mar 2026 | |
| Jefferies Financial Group Inc. |
13F
|
Company |
1.6%
|
657,500
|
$33,979,600 | — | 31 Mar 2026 | |
| Alyeska Investment Group, L.P. |
13F
|
Company |
1.6%
|
645,456
|
$33,357,166 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1.4%
|
581,924
|
$30,073,833 | — | 31 Mar 2026 | |
| RA CAPITAL MANAGEMENT, L.P. |
13F
|
Company |
1%
|
428,266
|
$22,132,787 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.99%
|
408,650
|
$21,104,239 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.85%
|
349,137
|
$18,043,400 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
0.81%
|
334,906
|
$17,307,942 | — | 31 Mar 2026 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.74%
|
304,808
|
$15,752,477 | — | 31 Mar 2026 | |
| CITIGROUP INC |
13F
|
Company |
0.73%
|
302,136
|
$15,614,409 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.71%
|
292,138
|
$15,097,674 | — | 31 Mar 2026 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.71%
|
292,004
|
$14,600,204 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.66%
|
269,953
|
$13,951,171 | — | 31 Mar 2026 | |
| Casdin Capital, LLC |
13F
|
Company |
0.56%
|
230,000
|
$11,886,400 | — | 31 Mar 2026 | |
| Slow Capital, Inc. |
13F
|
Company |
0.56%
|
228,256
|
$11,796,271 | — | 31 Mar 2026 | |
| Aberdeen Group plc |
13F
|
Company |
0.53%
|
217,428
|
$11,236,679 | — | 31 Mar 2026 | |
| Carnegie Investment Counsel |
13F
|
Company |
0.53%
|
217,100
|
$11,219,728 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.49%
|
201,229
|
$10,399,515 | — | 31 Mar 2026 | |
| NATIXIS |
13F
|
Company |
0.48%
|
199,368
|
$10,303,338 | — | 31 Mar 2026 | |
| TCW GROUP INC |
13F
|
Company |
0.47%
|
191,313
|
$9,887,056 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0.45%
|
185,393
|
$9,581,110 | — | 31 Mar 2026 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.45%
|
183,075
|
$9,461,316 | — | 31 Mar 2026 | |
| Douglas Lane & Associates, LLC |
13F
|
Company |
0.39%
|
161,524
|
$8,347,560 | — | 31 Mar 2026 | |
| Newtyn Management, LLC |
13F
|
Company |
0.36%
|
150,000
|
$7,752,000 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.36%
|
148,775
|
$7,688,692 | — | 31 Mar 2026 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
0.36%
|
147,985
|
$7,647,864 | — | 31 Mar 2026 | |
| Voleon Capital Management LP |
13F
|
Company |
0.35%
|
144,955
|
$7,491,274 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for GRAIL, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Steven Mizell | GRAL | Common Stock | Award | 1.08% | 396 | 37,071 | 15 Apr 2026 | Direct | ||
| William J. Chase | GRAL | Common Stock | Award | 1.11% | 408 | 37,211 | 15 Apr 2026 | Direct | ||
| Gregory L. Summe | GRAL | Common Stock | Award | 1.61% | 631 | 39,754 | 15 Apr 2026 | Direct | ||
| Aaron Freidin | GRAL | Common Stock | Sale | -15% | $2,286,526 | $49.92 | -45,806 | 260,669 | 08 Apr 2026 | Direct |
| Robert P. Ragusa | GRAL | Common Stock | Sale | -19.2% | $6,164,923 | $49.92 | -123,502 | 518,582 | 08 Apr 2026 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -14.2% | $3,078,169 | $49.92 | -61,665 | 371,216 | 08 Apr 2026 | Direct |
| Aaron Freidin | GRAL | Common Stock | Sale | -0.81% | $119,340 | $47.89 | -2,492 | 306,475 | 09 Mar 2026 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -0.67% | $140,650 | $47.89 | -2,937 | 432,881 | 09 Mar 2026 | Direct |
| Robert P. Ragusa | GRAL | Common Stock | Sale | -1.15% | $357,296 | $47.89 | -7,461 | 642,084 | 09 Mar 2026 | Direct |
| Aaron Freidin | GRAL | Common Stock | Sale | -0.21% | $34,722 | $53.01 | -655 | 308,967 | 05 Mar 2026 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -0.16% | $36,577 | $53.01 | -690 | 435,818 | 05 Mar 2026 | Direct |
| Robert P. Ragusa | GRAL | Common Stock | Sale | -0.15% | $51,950 | $53.01 | -980 | 649,545 | 05 Mar 2026 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -3.75% | $852,848 | $50.16 | -17,002 | 436,508 | 02 Mar 2026 | Direct |
| Aaron Freidin | GRAL | Common Stock | Sale | -3% | $480,244 | $50.17 | -9,573 | 309,622 | 02 Mar 2026 | Direct |
| Robert P. Ragusa | GRAL | Common Stock | Sale | -5.45% | $1,881,417 | $50.17 | -37,504 | 650,525 | 02 Mar 2026 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Award | 22.9% | 84,540 | 453,510 | 27 Feb 2026 | Direct | ||
| Aaron Freidin | GRAL | Common Stock | Award | 23.2% | 60,118 | 319,195 | 27 Feb 2026 | Direct | ||
| William J. Chase | GRAL | Common Stock | Award | 0.58% | 213 | 36,803 | 15 Jan 2026 | Direct | ||
| Gregory L. Summe | GRAL | Common Stock | Award | 0.85% | 329 | 39,123 | 15 Jan 2026 | Direct | ||
| Steven Mizell | GRAL | Common Stock | Award | 0.56% | 206 | 36,675 | 15 Jan 2026 | Direct | ||
| Joshua J. Ofman | GRAL | Common Stock | Sale | -3.4% | $1,300,000 | $100.00 | -13,000 | 368,818 | 03 Dec 2025 | Direct |
| Robert P. Ragusa | GRAL | Common Stock | Sale | -5.49% | $3,809,535 | $95.24 | -40,000 | 688,029 | 03 Dec 2025 | Direct |
| Aaron Freidin | GRAL | Common Stock | Sale | -8.8% | $2,478,818 | $99.15 | -25,000 | 259,077 | 03 Dec 2025 | Direct |
| Aaron Freidin | GRAL | Common Stock | Sale | -0.59% | $134,402 | $79.20 | -1,697 | 284,077 | 17 Nov 2025 | Direct |
| Illumina, Inc. | GRAL | Common stock, par value $0.001 per share | Sale | -22.2% | $79,850,000 | $79.85 | -1,000,000 | 3,502,126 | 17 Nov 2025 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -1.58% | $501,409 | $82.01 | -6,114 | 381,818 | 16 Oct 2025 | Direct |
| Robert P. Ragusa | GRAL | Common Stock | Sale | -0.99% | $498,622 | $68.88 | -7,239 | 727,388 | 15 Oct 2025 | Direct |
| Steven Mizell | GRAL | Common Stock | Award | 0.74% | 267 | 36,469 | 15 Oct 2025 | Direct | ||
| Joshua J. Ofman | GRAL | Common Stock | Sale | -2.23% | $673,985 | $76.03 | -8,865 | 387,932 | 15 Oct 2025 | Direct |
| Gregory L. Summe | GRAL | Common Stock | Award | 1.11% | 425 | 38,794 | 15 Oct 2025 | Direct | ||
| William J. Chase | GRAL | Common Stock | Award | 0.76% | 275 | 36,590 | 15 Oct 2025 | Direct | ||
| Joshua J. Ofman | GRAL | Common Stock | Sale | -17% | $5,086,562 | $62.50 | -81,385 | 396,797 | 06 Oct 2025 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -1.99% | $620,312 | $64.00 | -9,692 | 478,182 | 02 Oct 2025 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -0.85% | $134,548 | $32.02 | -4,202 | 487,874 | 19 Aug 2025 | Direct |
| Aaron Freidin | GRAL | Common Stock | Sale | -0.31% | $28,082 | $32.02 | -877 | 285,143 | 19 Aug 2025 | Direct |
| William J. Chase | GRAL | Common Stock | Award | 1.49% | 533 | 36,315 | 15 Jul 2025 | Direct | ||
| Gregory L. Summe | GRAL | Common Stock | Award | 2.2% | 825 | 38,369 | 15 Jul 2025 | Direct | ||
| Steven Mizell | GRAL | Common Stock | Award | 1.45% | 517 | 36,202 | 15 Jul 2025 | Direct | ||
| Aaron Freidin | GRAL | Common Stock | Sale | -2.72% | $311,440 | $38.93 | -8,000 | 286,020 | 15 Jul 2025 | Direct |
| Chun R. Ding | GRAL | Common Stock | Sale | -9.32% | $16,830,151 | $49.53 | -339,800 | 3,305,055 | 01 Jul 2025 | See Footnotes |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -1.93% | $503,984 | $52.00 | -9,692 | 492,076 | 30 Jun 2025 | Direct |
| Joshua J. Ofman | GRAL | Common Stock | Sale | -1.89% | $410,019 | $42.30 | -9,692 | 501,768 | 12 Jun 2025 | Direct |
| Gregory L. Summe | GRAL | Common Stock | Award | 19.3% | 6,082 | 37,544 | 29 May 2025 | Direct | ||
| William J. Chase | GRAL | Common Stock | Award | 20.5% | 6,082 | 35,782 | 29 May 2025 | Direct | ||
| Steven Mizell | GRAL | Common Stock | Award | 20.6% | 6,082 | 35,685 | 29 May 2025 | Direct | ||
| Sarah Krevans | GRAL | Common Stock | Award | 19.6% | 6,082 | 37,137 | 29 May 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.