Richard Chen - 15 Jul 2026 Form 4 Insider Report for Personalis, Inc. (PSNL)

Reporting relationship: President and CMO
Issuer ticker: PSNL
Reported as of: 15 Jul 2026
Net transaction value: -$1,515,000
SEC form: 4
Accepted by SEC: 15 Jul 2026, 21:27:39 UTC
Prior SEC filing: 17 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Aaron Tachibana, Attorney-in-Fact

Key filing fact

Richard Chen filed Form 4 for Personalis, Inc. (PSNL) on 15 Jul 2026.

Key facts

This page summarizes Richard Chen's Form 4 filing for Personalis, Inc. (PSNL).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 15 Jul 2026, 21:27.

Change

Previous filing in this sequence was filed on 17 Mar 2026.
Current net transaction value: -$1,515,000.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001779787 Primary reporting owner

Chen Richard

Relationship: President and CMO
Address: C/O PERSONALIS, INC., 6600 DUMBARTON CIRCLE, FREMONT
Signature: /s/ Aaron Tachibana, Attorney-in-Fact
Signature date: 15 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PSNL transaction

Common Stock

Options Exercise

Transaction value
Shares: +100,000
Change %: +58%
Price: $2.44^*
Shares after: 273,880
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1

PSNL transaction

Common Stock

Sale

Transaction value: $1,515,000
Shares: -100,000
Change %: -37%
Price: $15.15
Shares after: 173,880
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PSNL transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -100,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 100,000
Exercise price: $2.44
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

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 23, 2025.

Footnote F2

The price reported above reflects the weighted average price of the shares sold. The sale price ranged from $15.01 to $15.45 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.

Footnote F3

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