Personalis, Inc. — Director's Dealing 2022

May 19, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Personalis, Inc. (PSNL)
CIK: 0001527753
Period of Report: 2022-05-16

Reporting Person: Chen Richard (Chief Medical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-04-29	Common Stock	A	1558	$4.76	Acquired	157116	Direct
2022-05-16	Common Stock	S	1286	$4.86	Disposed	155830	Direct

Footnotes

F1: Includes 1,558 shares acquired under the Issuer's Employee Stock Purchase Plan dated April 29, 2022.

F2: Shares sold to cover tax obligation from settlement of vested restricted stock units.

F3: This reflects a reduction of 538 shares due to a scrivener's error on the reporting person's prior filing and does not indicate a purchase and/or sale of such shares.