Personalis (PSNL) CFO granted 206,250 options and 34,375 RSUs

Rhea-AI Filing Summary

Personalis, Inc. CFO and COO Aaron Tachibana received new equity awards as compensation. He was granted stock options for 206,250 shares of common stock at an exercise price of $6.72 per share, expiring on March 15, 2036. These options vest in 36 equal monthly installments beginning on April 15, 2026.

He also received 34,375 restricted stock units, each representing one share of common stock upon settlement. These RSUs vest in six equal semi-annual installments, with the first tranche vesting on September 15, 2026. Following the RSU grant, he directly holds 198,833 shares of common stock.

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

OMB APPROVAL

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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^*

Tachibana Aaron

(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)
	CFO AND COO

3. Date of Earliest Transaction (Month/Day/Year)
03/15/2026

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
Common Stock	03/15/2026		A		34,375(1)	A	$0	198,833	D

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)	$6.72	03/15/2026		A		206,250		(2)	03/15/2036	Common Stock	206,250	$0	206,250	D

Explanation of Responses:

1. Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest in 6 equal semi-annual installments with the first installment vesting on September 15, 2026.

2. The shares subject to the option vest in 36 equal monthly installments with the first installment vesting on April 15, 2026.

	/s/ Aaron Tachibana	03/17/2026
	** 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 4 (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).
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FAQ

What equity awards did Personalis (PSNL) CFO Aaron Tachibana receive?

Aaron Tachibana received stock options and restricted stock units as equity compensation. He was granted options for 206,250 shares at an exercise price of $6.72 and 34,375 RSUs, each representing one future share of Personalis common stock upon vesting.

Are the Personalis (PSNL) insider transactions open-market purchases or compensation grants?

The transactions are compensation-related grants, not open-market purchases. Both the 206,250 stock options and 34,375 common shares are reported with code “A,” described as grants or awards, and carry a transaction price of $0.00 per share on the grant date.

How do Aaron Tachibana’s new Personalis stock options vest?

The options for 206,250 shares vest gradually over three years. Footnotes state they vest in 36 equal monthly installments, with the first monthly vesting date on April 15, 2026, aligning vesting with continued service at Personalis over time.

What is the vesting schedule for Aaron Tachibana’s Personalis RSUs?

The 34,375 RSUs vest in six equal semi-annual installments. The first installment vests on September 15, 2026, meaning additional portions vest every six months thereafter, each RSU delivering one share of Personalis common stock upon settlement when vested.

How many Personalis shares does Aaron Tachibana hold after these grants?

After the RSU-related common stock grant, Aaron Tachibana directly holds 198,833 shares of Personalis common stock. This figure reflects his non-derivative holdings following the March 15, 2026 transaction, separate from the 206,250 stock options granted the same day.

What is the exercise price and expiration date of the new Personalis options?

The newly granted options allow purchase of Personalis common stock at an exercise price of $6.72 per share. According to the filing, these options expire on March 15, 2036, providing a 10-year window from the grant date for potential exercise after vesting.