Personalis (PSNL) CEO trades 100,000 shares via 10b5-1 plan and option exercise

Rhea-AI Filing Summary

Personalis, Inc. director and Chief Executive Officer Christopher M. Hall reported paired option exercises and share sales in company stock. He exercised options to acquire 100,000 shares of common stock at an exercise price of $1.61 per share and sold 100,000 shares of common stock in open-market transactions at a weighted average price of $15.08 per share, with sale prices ranging from $15.00 to $15.24. The filing notes that these transactions were effected pursuant to a pre-arranged Rule 10b5-1 trading plan. One transaction entry shows Hall holding 235,986 shares directly after the reported sale, while another shows 335,986 shares directly after the related option exercise.

Insights

Insider trading analyst

CEO exercised options and sold shares under a pre-set 10b5-1 plan.

Chief Executive Officer Christopher M. Hall exercised stock options to acquire 100,000 Personalis common shares at an exercise price of $1.61 per share. He also sold 100,000 shares at a weighted average price of $15.08, with individual trades between $15.00 and $15.24 per share.

The footnotes state these trades were executed under a Rule 10b5-1 trading plan adopted on December 17, 2025, indicating they were pre-scheduled rather than discretionary. Following the individual transactions, direct holdings are reported as 235,986 shares after the sale entry and 335,986 shares after the related exercise entry, reflecting partial retention of equity exposure.

Insider Trade Summary 10b5-1

Net Seller: 100,000 shares ($1,508,000)

Net Sell 4 txns

Insider Hall Christopher M

Role Chief Executive Officer

Sold 100,000 shs ($1.51M)

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	66,667	$0.00	--
Exercise	Stock Option (right to buy)	33,333	$0.00	--
Exercise	Common Stock	100,000	$1.61	$161K
Sale	Common Stock	100,000	$15.08	$1.51M

Holdings After Transaction: Stock Option (right to buy) — 133,333 shares (Direct, null); Common Stock — 335,986 shares (Direct, null)

Footnotes (1)

1. The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 17, 2025. The price reported above reflects the weighted average price of the shares sold. The sale price ranged from $15.00 to $15.24 per share. Upon request from the SEC staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. The option vested and became exercisable over the three-year period commencing April 15, 2024, with 1/36th of the shares subject to the option vesting each month of continuous service thereafter. The shares subject to the option are fully vested and exercisable.

Key Figures

Shares sold: 100,000 shares Weighted average sale price: $15.08 per share Option exercise shares: 100,000 shares +5 more

8 metrics

Shares sold 100,000 shares Common stock sold in open-market transactions on July 9, 2026

Weighted average sale price $15.08 per share Average price for 100,000 common shares sold, range $15.00–$15.24

Option exercise shares 100,000 shares Common shares acquired through option exercises on July 9, 2026

Option exercise price $1.61 per share Conversion or exercise price for options into common stock

Direct holdings after sale entry 235,986 shares Directly owned common shares reported following the sale transaction entry

Direct holdings after exercise entry 335,986 shares Directly owned common shares reported following the non-derivative option exercise entry

Remaining option shares 133,333 shares Shares subject to one stock option after derivative transactions on that option line

Option expiration date March 15, 2034 Expiration date for the reported stock option (right to buy)

Key Terms

Rule 10b5-1 trading plan, weighted average price, Stock Option (right to buy), derivative security, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The sales and option exercise were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported above reflects the weighted average price of the shares sold"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Stock Option (right to buy) financial

"security_title: Stock Option (right to buy)"

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

continuous service other

"vesting each month of continuous service thereafter"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/09/2026 - 08:47 PM Accepted by SEC EDGAR 07/09/2026 - 08:46 PM Learn about SEC filing dates

FAQ

What did Personalis (PSNL) CEO Christopher Hall do in this Form 4?

Christopher M. Hall, CEO of Personalis (PSNL), reported exercising options for 100,000 shares at $1.61 per share and selling 100,000 shares of common stock at a weighted average price of $15.08 per share.

How many Personalis (PSNL) shares did the CEO sell and at what price range?

Hall sold 100,000 shares of Personalis common stock at a weighted average price of $15.08 per share, with individual sale prices ranging from $15.00 to $15.24 per share.

Were the PSNL CEO’s trades in this Form 4 under a Rule 10b5-1 plan?

Yes. The filing states the sales and option exercise were effected under a Rule 10b5-1 trading plan adopted by Christopher M. Hall on December 17, 2025.

What option exercise price did the Personalis (PSNL) CEO pay for the shares?

Christopher M. Hall exercised stock options with a conversion or exercise price of $1.61 per share, acquiring 100,000 shares of Personalis common stock through these option exercises.

How many Personalis (PSNL) shares does the CEO hold after these transactions?

The report shows 235,986 shares directly held after the sale entry and 335,986 shares directly held after the related option exercise entry, reflecting holdings at each respective step.

What is the vesting status of the options exercised by the PSNL CEO?

The filing notes the option vested over a three-year period starting April 15, 2024, with 1/36 vesting monthly, and confirms that the shares subject to the option are fully vested and exercisable.

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

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^*

Hall Christopher M

(Last) (First) (Middle)

C/O PERSONALIS, INC.

6600 DUMBARTON CIRCLE

(Street)

FREMONT CALIFORNIA 94555

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/09/2026

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

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

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

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	07/09/2026		M(1)		100,000	A	$1.61	335,986	D
Common Stock	07/09/2026		S(1)		100,000	D	$15.08(2)	235,986	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)	$1.61	07/09/2026		M(1)			66,667	(3)	03/15/2034	Common Stock	66,667	$0	133,333	D
Stock Option (right to buy)	$1.61	07/09/2026		M(1)			33,333	(4)	03/15/2034	Common Stock	33,333	$0	0	D

Explanation of Responses:

1. The sales and option exercise reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 17, 2025.

2. The price reported above reflects the weighted average price of the shares sold. The sale price ranged from $15.00 to $15.24 per share. Upon request from the SEC staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.

3. The option vested and became exercisable over the three-year period commencing April 15, 2024, with 1/36th of the shares subject to the option vesting each month of continuous service thereafter.

4. The shares subject to the option are fully vested and exercisable.

	/s/ Aaron Tachibana, Attorney-in-Fact	07/09/2026
	** 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).
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 4: SEC 1474 (03-26)