Grail GRAL Insider Ownership

NASDAQ GRAL

$117.57 -17.89 (-13.20%)

As of: Oct 16, 2026 · 3:59 PM EDT

Insider Holdings by Owner

8.24Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

18.53%

▼-0.114% pp QoQ

Shares Held by Insiders

8.27Mn

filed for Sep 2026

▼-0.61% QoQ

Shares Outstanding

44.67Mn

44,666,234 shares

Direct Holdings

4.97Mn

Indirect: 3.31Mn

Net Shares Traded (QoQ)

-50.72K

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the trailing 12 months, GRAL insiders sold $116.92 million worth of shares (1.52Mn shares) in open-market trades, with no open-market purchases.

By number of insiders, Grail saw 5 insiders sell on the open market over the past 12 months and none buy.
Illumina Inc. (10% owner) was the top open-market seller of Grail over the past 12 months, with $79.85 million sold (1Mn shares) and the latest sale on November 17, 2025.
Aaron Freidin (Chief Financial Officer) made the most recent open-market trade by an insider of Grail, a sale of 23.62K shares for $3.46 million on October 5, 2026.
Outside the open market, Grail insiders received 185.32K shares in stock awards and acquired 26.45K shares through option exercises and conversions over the past 12 months.
Business Quant data shows Grail insiders holding 8.24Mn shares in total in their latest Form 4 filings, or 18.46% of the 44.67Mn shares outstanding; that total is down 0.99% from 8.33Mn shares at the end of Q2 2026 and down 12.89% from 9.46Mn shares at the end of Q3 2025.
Indirect holdings, through trusts, partnerships, family members and other entities, make up 40.09% (3.31Mn shares) of Grail's insider total, with the other 59.91% (4.94Mn shares) held directly.
Per Business Quant, 10 insiders of GRAL hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
GRAL's largest insider holders by reported holdings are Illumina Inc. (10% owner, 3.5Mn shares), Chun R. Ding (10% owner, 3.31Mn shares) and Robert P. Ragusa (Chief Executive Officer, 518.58K shares).
Illumina Inc. alone accounts for 42.48% of the shares held by Grail insiders.
A total of 40 Form 4 filings with transactions in Grail stock were made over the past 12 months, by 9 insiders.
The insider holdings and trades above for Grail reflect Form 4 filings through October 7, 2026.

Form 4 Holdings

Insiders Holding GRAL

Insiders 10

Shares held 8.24Mn

Of outstanding 18.46%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Inc. Illumina,	TenPercentOwner	3,502,126	0	3,502,126	42.5%	18 Nov, 2025
2	Chun R Ding	TenPercentOwner	0	3,305,055	3,305,055	40.1%	03 Jul, 2025
3	Robert P Ragusa	Chief Executive Officer	518,582	0	518,582	6.3%	09 Apr, 2026
4	Joshua J. Ofman	Chief Executive Officer	362,271	0	362,271	4.4%	23 Sep, 2026
5	Aaron Freidin	Chief Financial Officer	225,364	0	225,364	2.7%	07 Oct, 2026
6	Andrew John Partridge	Chief Growth Officer	155,865	0	155,865	1.9%	07 Oct, 2026
7	Gregory L Summe	Director	45,672	0	45,672	0.6%	16 Jul, 2026
8	William J Chase	Director	42,978	0	42,978	0.5%	16 Jul, 2026
9	Steven Mizell	Director	42,830	0	42,830	0.5%	16 Jul, 2026
10	Sarah Krevans	Director	42,628	0	42,628	0.5%	22 Jun, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

135 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
05 Oct, 2026	Aaron Freidin	Chief Financial Officer	Disposed S	23,619	$146.39	$3.46Mn	225,364	Direct
05 Oct, 2026	Andrew John Partridge	Chief Growth Officer	Disposed S	7,873	$146.39	$1.15Mn	155,865	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Acquired M	26,452	$14.00	$370.33K	423,723	Direct
21 Sep, 2026	Aaron Freidin	Chief Financial Officer	Disposed S	1,779	$92.26	$164.14K	251,304	Direct
21 Sep, 2026	Aaron Freidin	Chief Financial Officer	Disposed S	1,800	$93.92	$169.05K	249,504	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	2,125	$92.32	$196.17K	421,598	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	1,454	$93.61	$136.10K	420,144	Direct
21 Sep, 2026	Aaron Freidin	Chief Financial Officer	Disposed S	521	$95.00	$49.50K	248,983	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	37,752	$94.98	$3.59Mn	382,392	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	6,200	$96.43	$597.87K	376,192	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	1,400	$97.84	$136.98K	374,792	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	421	$99.85	$42.04K	374,371	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	2,100	$100.68	$211.43K	372,271	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	10,000	$110.00	$1.10Mn	362,271	Direct
21 Sep, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed M	26,452	$0.00	$0	37,032	Direct
27 Aug, 2026	Aaron Freidin	Chief Financial Officer	Disposed S	7,900	$85.01	$671.58K	253,083	Direct
27 Aug, 2026	Joshua J. Ofman	Chief Executive Officer	Disposed S	5,000	$85.02	$425.10K	397,271	Direct
15 Jul, 2026	Gregory L Summe	Director	Acquired A	427	$74.36	$31.75K	45,672	Direct
15 Jul, 2026	William J Chase	Director	Acquired A	276	$74.36	$20.52K	42,978	Direct
15 Jul, 2026	Steven Mizell	Director	Acquired A	268	$74.36	$19.93K	42,830	Direct

Showing 1 to 20 of 135 transactions