Myrtle S. Potter - Sep 15, 2025 Form 4 Insider Report for Guardant Health, Inc. (GH)

Role
Director
Signature
/s/ John G. Saia, as attorney-in-fact for Myrtle S. Potter
Stock symbol
GH
Transactions as of
Sep 15, 2025
Transactions value $
-$1,446
Form type
4
Date filed
9/17/2025, 05:17 PM
Previous filing
Aug 20, 2025
Next filing
Oct 16, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
POTTER MYRTLE S Director 3100 HANOVER STREET, PALO ALTO /s/ John G. Saia, as attorney-in-fact for Myrtle S. Potter 2025-09-17 0001214130

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GH Common Stock Options Exercise $0 +68 +0.37% $0.00 18.3K Sep 15, 2025 Direct
transaction GH Common Stock Sale -$1.45K -26 -0.14% $55.63 18.3K Sep 17, 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GH Restricted Stock Units Options Exercise $0 -68 -49.64% $0.00 69 Sep 15, 2025 Common Stock 68 $0.00 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The restricted stock unit award vested as to 25% of the shares subject to such award on October 15, 2022. The remaining 75% of the shares subject to such award vests in substantially equal installments on each monthly anniversary of October 15, 2022 during the three-year period thereafter.
F2 Not applicable for Restricted Stock Units.