STOCK TITAN

Personalis (NASDAQ: PSNL) CEO sells 100K shares after exercising options

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Personalis, Inc. Chief Executive Officer Christopher M. Hall reported an exercise-and-sell transaction in Common Stock under a pre-arranged Rule 10b5-1 trading plan adopted on December 17, 2025. On May 28–29, 2026, he exercised stock options for 100,000 shares at an exercise price of $1.61 per share and sold the same number of shares in open-market transactions at a weighted average price of about $11.02 per share. Following these transactions, he directly holds 235,986 shares of Common Stock and continues to hold stock options covering 300,000 shares of Common Stock.

Positive

  • None.

Negative

  • None.
Insider Hall Christopher M
Role Chief Executive Officer
Sold 100,000 shs ($1.10M)
Type Security Shares Price Value
Exercise Stock Option (right to buy) 80,091 $0.00 --
Exercise Common Stock 80,091 $1.61 $129K
Sale Common Stock 80,091 $11.02 $883K
Exercise Stock Option (right to buy) 19,909 $0.00 --
Exercise Common Stock 19,909 $1.61 $32K
Sale Common Stock 19,909 $11.02 $219K
Holdings After Transaction: Stock Option (right to buy) — 300,000 shares (Direct, null); Common Stock — 316,077 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 $11.00 to $11.05 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 price reported above reflects the weighted average price of the shares sold. The sale price ranged from $11.00 to $11.12 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.
Shares sold 100,000 shares Open-market Common Stock sales on May 28–29, 2026
Average sale price $11.02 per share Weighted average for May 28–29, 2026 sales; individual trades $11.00–$11.12
Option exercise price $1.61 per share Conversion price for 100,000 Common Stock options exercised
Shares held after 235,986 shares Common Stock directly owned after reported transactions
Options remaining 300,000 options Stock Option (right to buy) position after exercises, expiring March 15, 2034
Exercise shares 100,000 shares Total shares acquired via option exercises (M code) in this filing
10b5-1 plan adoption date December 17, 2025 Date the CEO adopted the trading plan governing these trades
Option expiration March 15, 2034 Expiration date for the Stock Option (right to buy) position
Rule 10b5-1 trading plan regulatory
"The sales and option exercise reported in this Form 4 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.
Stock Option (right to buy) financial
"security_title: "Stock Option (right to buy)" with underlying Common Stock shares"
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.
vested and became exercisable financial
"The option vested and became exercisable over the three-year period commencing April 15, 2024"
open-market sale financial
"transaction_action: "open-market sale" for Common Stock transactions coded "S""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/28/2026M(1)19,909A$1.61255,895D
Common Stock05/28/2026S(1)19,909D$11.02(2)235,986D
Common Stock05/29/2026M(1)80,091A$1.61316,077D
Common Stock05/29/2026S(1)80,091D$11.02(3)235,986D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy)$1.6105/28/2026M(1)19,909 (4)03/15/2034Common Stock19,909$0380,091D
Stock Option (right to buy)$1.6105/29/2026M(1)80,091 (4)03/15/2034Common Stock80,091$0300,000D
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 $11.00 to $11.05 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 price reported above reflects the weighted average price of the shares sold. The sale price ranged from $11.00 to $11.12 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.
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.
/s/ Aaron Tachibana, Attorney-in-Fact05/29/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transaction did Personalis (PSNL) CEO Christopher Hall report?

Christopher Hall reported an exercise-and-sell transaction involving 100,000 Personalis shares. He exercised stock options for 100,000 shares at an exercise price of $1.61 and sold 100,000 shares in open-market trades at a weighted average price of about $11.02 per share.

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

The CEO sold 100,000 shares of Personalis Common Stock. The Form 4 shows open-market sales on May 28–29, 2026 at a weighted average price of approximately $11.02 per share, with actual sale prices ranging from $11.00 to $11.12 per share.

Were the recent Personalis (PSNL) insider trades under a Rule 10b5-1 plan?

Yes. The sales and option exercises were made under a Rule 10b5-1 trading plan. A footnote explains the plan was adopted on December 17, 2025, indicating the transactions were pre-scheduled rather than newly decided at the time of trading.

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

After the reported trades, the CEO directly holds 235,986 Personalis shares. The Form 4 shows this Common Stock balance following the May 28–29, 2026 transactions, in addition to outstanding stock options covering 300,000 shares of Common Stock.

What stock options did the Personalis (PSNL) CEO exercise in this Form 4?

The CEO exercised stock options for 100,000 shares at a conversion price of $1.61. These options, described as “Stock Option (right to buy),” were part of a grant vesting monthly over three years beginning April 15, 2024, and expire on March 15, 2034.

What vesting schedule applies to the Personalis (PSNL) CEO’s exercised options?

The exercised options vested monthly over three years from April 15, 2024. A footnote states that 1/36th of the shares subject to the option vested each month of continuous service after that date, creating a gradual vesting schedule before these May 2026 exercises.