GRAIL, Inc. (GRAL) Insider Ownership

Historic Insider Ownership Trends

GRAL's three largest insider shareholders as of April 22, 2026 are Inc. Illumina, (TenPercentOwner, 3.50Mn shares), Inc. Illumina, (TenPercentOwner, 3.50Mn shares), Chun R Ding (TenPercentOwner, 3.31Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Inc. Illumina, - 3,502,126 0 18 Nov, 2025
Inc. Illumina, - 3,502,126 0 18 Nov, 2025
Inc. Illumina, - 3,502,126 0 18 Nov, 2025
Chun R Ding - 0 3,305,055 03 Jul, 2025
Robert P Ragusa Chief Executive Officer 518,582 0 09 Apr, 2026
Joshua J. Ofman President 371,216 0 09 Apr, 2026
Aaron Freidin Chief Financial Officer 260,669 0 09 Apr, 2026
Gregory L Summe - 39,754 0 16 Apr, 2026
Gregory L Summe - 39,123 0 16 Jan, 2026
Gregory L Summe - 39,123 0 16 Jan, 2026
William J Chase - 37,211 0 16 Apr, 2026
Sarah Krevans - 37,137 0 30 May, 2025
Sarah Krevans - 37,137 0 30 May, 2025
Sarah Krevans - 37,137 0 30 May, 2025
Steven Mizell - 37,071 0 16 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
15 Apr, 2026 William J Chase Common Stock A 408 $49.79 37,211 D A
15 Apr, 2026 Steven Mizell Common Stock A 396 $49.79 37,071 D A
15 Apr, 2026 Gregory L Summe Common Stock A 631 $49.79 39,754 D A
08 Apr, 2026 Joshua J. Ofman Common Stock D 61,665 $49.92 371,216 D S
08 Apr, 2026 Robert P Ragusa Common Stock D 123,502 $49.92 518,582 D S
08 Apr, 2026 Aaron Freidin Common Stock D 45,806 $49.92 260,669 D S
05 Mar, 2026 Joshua J. Ofman Common Stock D 690 $53.01 435,818 D S
05 Mar, 2026 Robert P Ragusa Common Stock D 980 $53.01 649,545 D S
05 Mar, 2026 Aaron Freidin Common Stock D 655 $53.01 308,967 D S
09 Mar, 2026 Aaron Freidin Common Stock D 2,407 $47.93 306,560 D S
09 Mar, 2026 Joshua J. Ofman Common Stock D 2,836 $47.93 432,982 D S
09 Mar, 2026 Robert P Ragusa Common Stock D 7,203 $47.93 642,342 D S
09 Mar, 2026 Robert P Ragusa Common Stock D 258 $46.73 642,084 D S
09 Mar, 2026 Aaron Freidin Common Stock D 85 $46.74 306,475 D S
09 Mar, 2026 Joshua J. Ofman Common Stock D 101 $46.74 432,881 D S
27 Feb, 2026 Joshua J. Ofman Common Stock A 84,540 $53.23 453,510 D A
27 Feb, 2026 Aaron Freidin Common Stock A 60,118 $53.23 319,195 D A
02 Mar, 2026 Robert P Ragusa Common Stock D 35,787 $50.09 652,242 D S
02 Mar, 2026 Joshua J. Ofman Common Stock D 779 $51.75 452,731 D S
02 Mar, 2026 Aaron Freidin Common Stock D 9,135 $50.09 310,060 D S