Insider Transactions Reported by 11 Insiders of GRAIL, Inc.

Symbol
GRAL on Nasdaq
Location
Menlo Park, CA

Sponsored

Quick Takeaways

  • GRAL - GRAIL, Inc. has 11 insiders with reported activity on this page.
  • Net insider value flow over the last year: -$134,879,226.
  • Recent transaction rows are available for direct filing-level review.

What Changed

  • Buy value: ; sell value: $134,879,225.
  • Net share flow: -2,058,920.

Why This Matters

  • 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.

Official SEC Source

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to selling over the last 12 months. Net value: -$134,879,226.

Buys

$0

Shares: 0

Insiders: 0

Sells

$134,879,226

Shares: 2,058,920

Insiders: 5

Net

-$134,879,226

Shares: -2,058,920

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 1,101,915 $0 $89,246,771 -$89,246,771
6-9 0 104,156 $0 $6,180,944 -$6,180,944
9-12 0 542,582 $0 $23,966,849 -$23,966,849

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 -$15,954,351 -38% Filing P/S 08 Apr 2026
Joshua J. Ofman President, Director $18,530,211 -$14,974,930 -45% Filing P/S 08 Apr 2026
Aaron Freidin Chief Financial Officer $13,011,970 -$7,269,793 -36% Filing P/S 08 Apr 2026
Gregory L. Summe Director $3,812,145 Mixed 15 Jan 2026
William J. Chase Director $3,586,084 Mixed 15 Jan 2026
Steven Mizell Director $3,573,612 Mixed 15 Jan 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 by the holder's primary source 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
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
BlackRock, Inc.
13F 13D/G
Company
6.5%
from 13D/G
2,958,246
$253,196,306 31 Dec 2025
Farallon Capital Partners, L.P.
13D/G
Dapice Joshua J.
5.9%
2,342,684
$234,502,668 +$16,316,300 31 Dec 2025
BAKER BROS. ADVISORS LP
13D/G 13F
Company
5.3%
2,085,333
$208,741,833 $0 31 Dec 2025
FARALLON CAPITAL MANAGEMENT LLC
13F
Company
5.8%
2,342,684
$200,510,323 31 Dec 2025
13F
PRIMECAP MANAGEMENT CO/CA/
13D/G 13F
Company
4.7%
1,838,684
$184,052,268 -$21,862,340 31 Dec 2025
VANGUARD GROUP INC
13F
Company
4.9%
1,980,783
$169,535,217 31 Dec 2025
13F
Chun R. Ding
3/4/5
10%+ Owner
8.1%
3,305,055
$166,079,013 -$16,830,151 01 Jul 2025
STATE STREET CORP
13F
Company
4.5%
1,827,523
$156,417,694 31 Dec 2025
13F
MORGAN STANLEY
13F
Company
3.7%
1,511,687
$129,385,439 31 Dec 2025
13F
CRCM LP
13D/G 13F
Company
5%
1,800,651
$106,472,314 -$2,483,456 06 Oct 2025
Arbiter Partners Capital Management LLC
13F
Company
2.5%
1,035,597
$88,636,747 31 Dec 2025
13F
Deep Track Capital, LP
13F
Company
2.5%
1,022,797
$87,541,195 31 Dec 2025
13F
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
2%
801,503
$68,609,317 31 Dec 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
1.7%
708,503
$60,640,772 31 Dec 2025
13F
Sessa Capital (Master), L.P.
13D/G
4.3%
1,508,077
$56,839,422 $0 30 Apr 2025
GOLDMAN SACHS GROUP INC
13F
Company
1.3%
536,986
$45,960,632 31 Dec 2025
13F
Alyeska Investment Group, L.P.
13F
Company
1.1%
442,500
$37,873,575 31 Dec 2025
13F
RA CAPITAL MANAGEMENT, L.P.
13F
Company
1.1%
428,266
$36,655,287 31 Dec 2025
13F
Sessa Capital IM, L.P.
13F
Company
0.9%
364,714
$31,215,871 31 Dec 2025
13F
NORTHERN TRUST CORP
13F
Company
0.84%
341,427
$29,222,737 31 Dec 2025
13F
AQR CAPITAL MANAGEMENT LLC
13F
Company
0.8%
326,845
$27,860,273 31 Dec 2025
13F
Robert P. Ragusa
3/4/5
Chief Executive Officer, Director
1.3%
518,582
$25,886,368 -$15,954,351 08 Apr 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
0.67%
270,827
$23,180,083 31 Dec 2025
13F
Allianz Asset Management GmbH
13F
Company
0.66%
267,560
$22,900,460 31 Dec 2025
13F
RAYMOND JAMES FINANCIAL INC
13F
Company
0.64%
258,810
$22,151,519 31 Dec 2025
13F
PERCEPTIVE ADVISORS LLC
13F
Company
0.58%
237,342
$20,314,102 31 Dec 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
0.53%
216,793
$18,555,025 31 Dec 2025
13F
Joshua J. Ofman
3/4/5
President, Director
0.91%
371,216
$18,530,211 -$14,974,930 08 Apr 2026
UBS Group AG
13F
Company
0.52%
213,178
$18,245,904 31 Dec 2025
13F
Carnegie Investment Counsel
13F
Company
0.52%
213,050
$18,234,950 31 Dec 2025
13F
PRICE T ROWE ASSOCIATES INC /MD/
13F
Company
0.52%
210,768
$18,041,000 31 Dec 2025
13F
TCW GROUP INC
13F
Company
0.48%
197,313
$16,888,020 31 Dec 2025
13F
FMR LLC
13F
Company
0.4%
163,244
$13,972,005 31 Dec 2025
13F
Slow Capital, Inc.
13F
Company
0.4%
162,417
$13,901,272 31 Dec 2025
13F
Douglas Lane & Associates, LLC
13F
Company
0.4%
161,624
$13,833,398 31 Dec 2025
13F
BIT Capital GmbH
13F
Company
0.38%
156,263
$13,374,550 31 Dec 2025
13F
VOLORIDGE INVESTMENT MANAGEMENT, LLC
13F
Company
0.37%
152,574
$13,058,809 31 Dec 2025
13F
Aaron Freidin
3/4/5
Chief Financial Officer
0.64%
260,669
$13,011,970 -$7,269,793 08 Apr 2026
Newtyn Management, LLC
13F
Company
0.37%
150,000
$12,838,500 31 Dec 2025
13F
Voleon Capital Management LP
13F
Company
0.36%
147,906
$12,659,275 31 Dec 2025
13F
FRANKLIN RESOURCES INC
13F
Company
0.36%
146,135
$12,507,694 31 Dec 2025
13F
BRAIDWELL LP
13F
Company
0.35%
142,755
$12,218,400 31 Dec 2025
13F
JPMORGAN CHASE & CO
13F
Company
0.35%
141,478
$12,109,102 31 Dec 2025
13F
Invesco Ltd.
13F
Company
0.34%
137,967
$11,808,608 31 Dec 2025
13F
Bank of New York Mellon Corp
13F
Company
0.33%
135,808
$11,623,752 31 Dec 2025
13F
BARCLAYS PLC
13F
Company
0.31%
125,658
$10,755,069 31 Dec 2025
13F
Aberdeen Group plc
13F
Company
0.31%
124,928
$10,692,588 31 Dec 2025
13F
180 WEALTH ADVISORS, LLC
13F
Company
0.28%
115,047
$9,846,873 31 Dec 2025
13F
CAPITAL FUND MANAGEMENT S.A.
13F
Company
0.28%
113,207
$9,689,387 31 Dec 2025
13F

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
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
Joshua J. Ofman GRAL Common Stock Sale -8.61% $1,635,867 $33.93 -48,213 511,460 02 May 2025 Direct
Aaron Freidin GRAL Common Stock Sale -12.3% $1,396,220 $33.93 -41,150 294,020 02 May 2025 Direct
Robert P. Ragusa GRAL Common Stock Sale -11.4% $3,190,608 $33.93 -94,035 734,627 02 May 2025 Direct
William J. Chase GRAL Common Stock Award 2.71% 784 29,700 15 Apr 2025 Direct
Steven Mizell GRAL Common Stock Award 2.63% 760 29,603 15 Apr 2025 Direct
Gregory L. Summe GRAL Common Stock Award 4.01% 1,212 31,462 15 Apr 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.