GRAIL officer Partridge reports $1.15M share sale

The securities table lists 15,280 common shares acquired upon vesting of restricted stock units on October 3, 2026.

Rhea-AI Filing Summary

GRAIL, Inc. (GRAL) reports a Rule 144 notice covering the sale of 7,873 common shares by Andrew Partridge, an Officer, with an aggregate market value of $1,152,533.19 and an approximate sale date of October 5, 2026. ETRADE Financial Corporation is listed as broker and NASDAQ as the exchange. The remarks say the shares were sold to cover tax withholding obligations arising from restricted stock unit vesting on October 3, 2026. Donald Lang signed as attorney-in-fact for Andrew Partridge.

Key Figures

Common shares reported for sale: 7,873 shares Aggregate market value: $1,152,533.19 Shares acquired upon vesting: 15,280 shares +1 more

4 metrics

Common shares reported for sale 7,873 shares Rule 144 notice; approximate sale date October 5, 2026

Aggregate market value $1,152,533.19 Shares reported for sale

Shares acquired upon vesting 15,280 shares Restricted stock unit vesting on October 3, 2026

Shares outstanding 44,753,179 shares Reported in the securities information

Key Terms

Rule 144, restricted stock units, tax withholding obligations, equity incentive plans

4 terms

Rule 144 regulatory

"Rule 144 notice"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted stock units financial

"Shares acquired upon vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"sold to cover tax withholding obligations"

equity incentive plans financial

"restricted stock units awarded under Issuer's equity incentive plans"

Equity incentive plans are company programs that pay employees, executives, or directors with company stock, stock options, or share units instead of or in addition to cash, aiming to align their interests with shareholders—like giving team members a stake in the house they help build. For investors this matters because such plans can motivate better company performance but also dilute existing ownership and increase reported compensation costs, so they affect future earnings, voting power, and share value.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many GRAIL (GRAL) shares is Andrew Partridge reporting for sale?

The notice lists 7,873 common shares for sale, with an aggregate market value of $1,152,533.19 and an approximate sale date of October 5, 2026.

How many GRAIL (GRAL) shares were acquired through Andrew Partridge's restricted stock unit vesting?

The securities table lists 15,280 common shares acquired upon vesting on October 3, 2026, under the issuer's equity incentive plans.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/05/2026 - 07:54 PM Accepted by SEC EDGAR 10/05/2026 - 07:53 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001758838
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GRAIL, Inc.
SEC File Number
Address of Issuer	250 S. Mathilda Ave. Suite 100 Sunnyvale CALIFORNIA 94086
Phone	6508650981
Name of Person for Whose Account the Securities are To Be Sold	Andrew Partridge
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	ETRADE FINANCIAL CORPORATION 3 EDISON DRIVE ALPHARETTA GA 30005	7873	1152533.19	44753179	10/05/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	10/03/2026	Shares acquired upon vesting of restricted stock units awarded under Issuer's equity incentive plans	Issuer			15280	10/03/2026	Services rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	Represents shares sold to cover tax withholding obligations arising from the vesting of restricted stock units on October 3, 2026.
Date of Notice	10/05/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Donald Lang, as Attorney-in-Fact for Andrew Partridge
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)