GRAIL (NASDAQ: GRAL) officer reports initial ownership of 165,229 shares

Rhea-AI Filing Summary

GRAIL, Inc. disclosed the initial holdings of Chief Growth Officer Andrew John Partridge on a Form 3. He directly owns 165,229 shares of GRAIL common stock. This filing records his starting equity position as an officer, without reporting any recent stock purchases or sales.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Partridge Andrew John

Role Chief Growth Officer

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 165,229 shares (Direct, null)

Footnotes (1)

Key Figures

Common stock held: 165,229 shares Buy transactions reported: 0 transactions Sell transactions reported: 0 transactions +2 more

5 metrics

Common stock held 165,229 shares Total GRAIL common shares owned directly after reported holdings

Buy transactions reported 0 transactions transactionSummary buyCount in this Form 3

Sell transactions reported 0 transactions transactionSummary sellCount in this Form 3

Holding entries 1 entry transactionSummary holdingEntries indicating a single holdings record

Net buy/sell shares 0 shares transactionSummary netBuySellShares reflects no net trading activity

Key Terms

Form 3, Common Stock, beneficial ownership

3 terms

Form 3 regulatory

"Initial statement of beneficial ownership filed on Form 3 by an insider."

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

Common Stock financial

"Security title reported as Common Stock in the insider holdings record."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

beneficial ownership financial

"Form 3 serves as an initial statement of beneficial ownership for insiders."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Partridge Andrew John

(Last) (First) (Middle)

C/O GRAIL, INC.

1525 O'BRIEN DRIVE

(Street)

MENLO PARK CALIFORNIA 94025

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/01/2026

3. Issuer Name and Ticker or Trading Symbol
GRAIL, Inc. [ GRAL ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Growth Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	165,229	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/Donald Lang, as Attorney-in-Fact for Andrew Partridge	06/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does the Form 3 filing for GRAL show about Andrew Partridge?

The Form 3 shows that Chief Growth Officer Andrew John Partridge directly owns 165,229 shares of GRAIL, Inc. common stock. This is an initial ownership report and does not reflect a new trade or recent transaction.

Is the GRAL Form 3 for Andrew Partridge a buy or sell transaction?

The GRAL Form 3 for Andrew Partridge does not report a buy or sell. It is an initial statement of beneficial ownership, listing his existing holding of 165,229 GRAIL common shares as of the reporting date.

How many GRAIL (GRAL) shares does the Chief Growth Officer hold?

Chief Growth Officer Andrew John Partridge is reported to hold 165,229 shares of GRAIL, Inc. common stock directly. This number appears as the total shares beneficially owned following the reported holdings entry.

Does the GRAL Form 3 include any derivative securities for Andrew Partridge?

The GRAL Form 3 data for Andrew Partridge shows no derivative securities reported. The derivativeSummary section is empty, indicating only common stock holdings are disclosed in this initial ownership statement.

What is the significance of a Form 3 filing for GRAIL insiders like Andrew Partridge?

A Form 3 is an insider’s initial ownership report when they become an officer, director, or large shareholder. For GRAIL, it establishes Andrew Partridge’s starting position of 165,229 common shares for future comparison with later Form 4 or Form 5 filings.