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GRAIL, Inc. — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Annual Quarterly Insiders
Insider Title Type Shares Price Value Owns After Date
Ofman Joshua J. President Sale 13,000 $100.00 $1,300,000 368,818 Dec 3, 2025
RAGUSA ROBERT P Chief Executive Officer Sale 14,807 $94.43 $1,398,225 713,222 Dec 3, 2025
Freidin Aaron Chief Financial Officer Sale 25,000 $99.15 $2,478,750 259,077 Dec 3, 2025
Freidin Aaron Chief Financial Officer Sale 1,697 $79.20 $134,402 284,077 Nov 17, 2025
ILLUMINA, INC. Sale 1,000,000 $79.85 $79,850,000 3,502,126 Nov 17, 2025
Ofman Joshua J. President Sale 8,865 $76.03 $674,006 387,932 Oct 16, 2025
RAGUSA ROBERT P Chief Executive Officer Sale 7,239 $68.88 $498,622 727,388 Oct 15, 2025
MIZELL STEVEN Award / Grant 267 $75.52 $20,164 36,469 Oct 15, 2025
SUMME GREGORY L Award / Grant 425 $75.52 $32,096 38,794 Oct 15, 2025
CHASE WILLIAM J Award / Grant 275 $75.52 $20,768 36,590 Oct 15, 2025
Ofman Joshua J. President Sale 81,385 $62.50 $5,086,563 396,797 Oct 6, 2025
Ofman Joshua J. President Sale 9,692 $64.00 $620,288 478,182 Oct 2, 2025
Ofman Joshua J. President Sale 4,202 $32.02 $134,548 487,874 Aug 19, 2025
Freidin Aaron Chief Financial Officer Sale 877 $32.02 $28,082 285,143 Aug 19, 2025
CHASE WILLIAM J Award / Grant 533 $38.53 $20,536 36,315 Jul 15, 2025
SUMME GREGORY L Award / Grant 825 $38.53 $31,787 38,369 Jul 15, 2025
MIZELL STEVEN Award / Grant 517 $38.53 $19,920 36,202 Jul 15, 2025
Freidin Aaron Chief Financial Officer Sale 8,000 $38.93 $311,440 286,020 Jul 15, 2025
DING CHUN R Sale 260,832 $49.58 $12,932,051 3,332,898 Jul 1, 2025
Ofman Joshua J. President Sale 9,692 $52.00 $503,984 492,076 Jun 30, 2025
Ofman Joshua J. President Sale 9,692 $42.30 $409,972 501,768 Jun 12, 2025
SUMME GREGORY L Award / Grant 6,082 $41.10 $249,970 37,544 May 29, 2025
CHASE WILLIAM J Award / Grant 6,082 $41.10 $249,970 35,782 May 29, 2025
MIZELL STEVEN Award / Grant 6,082 $41.10 $249,970 35,685 May 29, 2025
Krevans Sarah Award / Grant 6,082 $41.10 $249,970 37,137 May 29, 2025
Ofman Joshua J. President Sale 48,213 $33.93 $1,635,867 511,460 May 2, 2025
Freidin Aaron Chief Financial Officer Sale 41,150 $33.93 $1,396,220 294,020 May 2, 2025
RAGUSA ROBERT P Chief Executive Officer Sale 94,035 $33.93 $3,190,608 734,627 May 2, 2025
CHASE WILLIAM J Award / Grant 784 $25.94 $20,337 29,700 Apr 15, 2025
MIZELL STEVEN Award / Grant 760 $25.94 $19,714 29,603 Apr 15, 2025
SUMME GREGORY L Award / Grant 1,212 $25.94 $31,439 31,462 Apr 15, 2025
Freidin Aaron Chief Financial Officer Sale 1,816 $31.20 $56,659 335,170 Mar 11, 2025
RAGUSA ROBERT P Chief Executive Officer Sale 7,625 $31.21 $237,976 828,662 Mar 11, 2025
Ofman Joshua J. President Sale 2,109 $31.20 $65,801 559,673 Mar 11, 2025
RAGUSA ROBERT P Chief Executive Officer Sale 7,625 $31.21 $237,976 828,662 Mar 7, 2025
Ofman Joshua J. President Sale 2,109 $31.20 $65,801 559,673 Mar 7, 2025
Freidin Aaron Chief Financial Officer Sale 1,816 $31.20 $56,659 335,170 Mar 7, 2025
Freidin Aaron Chief Financial Officer Sale 521 $41.51 $21,627 336,986 Mar 5, 2025
Ofman Joshua J. President Sale 525 $41.51 $21,793 561,782 Mar 5, 2025
RAGUSA ROBERT P Chief Executive Officer Sale 994 $41.51 $41,261 836,287 Mar 5, 2025
Freidin Aaron Chief Financial Officer Award / Grant 69,230 $28.84 $1,996,593 337,507 Feb 3, 2025
Ofman Joshua J. President Award / Grant 110,770 $28.84 $3,194,607 562,307 Feb 3, 2025
RAGUSA ROBERT P Chief Executive Officer Award / Grant 224,620 $28.84 $6,478,041 837,281 Feb 3, 2025
CHASE WILLIAM J Award / Grant 1,182 $17.58 $20,780 28,916 Jan 15, 2025
MIZELL STEVEN Award / Grant 1,147 $17.58 $20,164 28,843 Jan 15, 2025
SUMME GREGORY L Award / Grant 1,828 $17.58 $32,136 30,250 Jan 15, 2025
Freidin Aaron Chief Financial Officer Sale 30,452 $14.02 $426,937 268,277 Nov 18, 2024
CHASE WILLIAM J Award / Grant 210 $13.62 $2,860 27,734 Oct 30, 2024
MIZELL STEVEN Award / Grant 248 $13.62 $3,378 27,696 Oct 30, 2024
SUMME GREGORY L Award / Grant 296 $13.62 $4,032 28,422 Oct 30, 2024