Terilyn J. Monroe - 15 Jan 2026 Form 4 Insider Report for Guardant Health, Inc. (GH)

Signature
/s/ John G. Saia, as attorney-in-fact for Tarilyn J. Monroe
Issuer symbol
GH
Transactions as of
15 Jan 2026
Net transactions value
-$986,320
Form type
4
Filing time
16 Jan 2026, 16:39:21 UTC
Previous filing
09 Jan 2026
Next filing
22 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Monroe Terilyn J. Chief People Officer 3100 HANOVER STREET, PALO ALTO /s/ John G. Saia, as attorney-in-fact for Tarilyn J. Monroe 16 Jan 2026 0001652956

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GH Common Stock Options Exercise $0 +17,379 +83% $0.000000 38,369 15 Jan 2026 Direct
transaction GH Common Stock Tax liability $986,320 -8,808 -23% $111.98 29,561 15 Jan 2026 Direct F1

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 -17,379 -50% $0.000000 17,379 15 Jan 2026 Common Stock 17,379 $0.000000 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock units. The amount retained by the Company was not in excess of the amount of the tax liability.
F2 This represents a restricted stock unit award granted on February 26, 2024 that vests over a three-year period. 33% of the shares subject to such award vested on the one-year anniversary of January 15, 2024 and the remaining 67% of the shares vest annually over the remaining two-year period, thereafter.
F3 Not applicable for Restricted Stock Units.