Personalis (PSNL) legal chief gains 8,333 performance-based stock options

Rhea-AI Filing Summary

Personalis, Inc. reported an insider equity transaction for Stephen Michael Moore, its SVP and Chief Legal Officer. He acquired 8,333 stock options, recorded as a grant or award at a reported price of $0.0000 per option.

According to the footnote, this reflects the vesting of a performance stock option originally granted on March 15, 2024, after a specified reimbursement milestone was satisfied. Following this transaction, Moore held a total of 8,333 stock options directly.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Moore Stephen Michael

(Last) (First) (Middle)

C/O PERSONALIS, INC.

6600 DUMBARTON CIRCLE

(Street)

FREMONT CA 94555

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Personalis, Inc. [ PSNL ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP and Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/23/2026

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

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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$1.61	02/23/2026		A		8,333		02/23/2026	03/15/2034	Common Stock	8,333	$0	8,333(1)	D

Explanation of Responses:

1. This amount represents the vesting of a performance stock option granted on March 15, 2024, following the satisfaction of a specified reimbursement milestone.

	/s/ Aaron Tachibana, Attorney-in-Fact	02/25/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did Personalis (PSNL) report for Stephen Michael Moore?

Personalis reported that SVP and Chief Legal Officer Stephen Michael Moore acquired 8,333 stock options. The options were recorded at a price of $0.0000 per share and represent a grant or award tied to a previously issued performance stock option that has now vested.

When did the reported Personalis (PSNL) stock option transaction occur?

The insider stock option transaction for Stephen Michael Moore occurred on February 23, 2026. On that date, 8,333 options were reported as acquired, reflecting vesting of a performance stock option originally granted in March 2024 after a reimbursement milestone was met.

How many Personalis (PSNL) options does Stephen Michael Moore hold after this filing?

After the reported transaction, Stephen Michael Moore beneficially owned 8,333 Personalis stock options directly. This figure matches the number of options involved in the transaction, indicating these vested options now represent his total reported derivative holdings in the company.

What triggered the vesting of Stephen Michael Moore’s Personalis performance stock option?

The vesting was triggered by satisfaction of a specified reimbursement milestone. The Form 4 footnote explains that the 8,333 options reflect vesting of a performance stock option granted on March 15, 2024, which became exercisable once that milestone condition was achieved.

What does transaction code "A" mean in the Personalis (PSNL) Form 4 filing?

Transaction code “A” indicates a grant, award, or other acquisition of a derivative security. In this Personalis filing, it represents 8,333 stock options credited to Stephen Michael Moore as the performance stock option vested after meeting a reimbursement-based performance condition.