[Form 4] Guardant Health, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Guardant Health director Tariq Musa reported the vesting and conversion of 250 restricted stock units into common shares on 08/15/2025 at no cash price, increasing his direct common stock holdings to 7,574 shares. The filing shows he continues to hold 4,747 restricted stock units after the transaction. The RSUs were part of a grant dated March 6, 2023 that vests over four years with 25% vesting on the one-year anniversary (March 15, 2023) and the remainder vesting monthly over the following three years. The Form 4 was signed by an attorney-in-fact on 08/18/2025.

Insights

Corporate Governance Expert

TL;DR Director Musa received vesting RSUs that converted to 250 common shares, modestly increasing insider ownership.

The filing documents a routine vesting event from a standard four-year restricted stock unit award granted March 6, 2023. The transaction code indicates vesting/conversion rather than an open-market purchase, and the zero price reflects issuance on vesting. Ownership totals (7,574 shares held directly and 4,747 RSUs remaining) provide transparency on the director's current stake. This is a standard, non-disclosable change in compensation-related equity and does not by itself indicate change in corporate control or material shift in insider alignment.

Securities Analyst

TL;DR This is a routine insider vesting event with limited market impact given the small share count.

The Form 4 shows 250 RSUs vested on 08/15/2025 and converted into common stock at no cash outlay, consistent with typical executive/director equity compensation. The remaining 4,747 RSUs signal future potential dilution as they vest according to the grant schedule. Quantities reported are small relative to a public company float and are unlikely to materially affect valuation or trading dynamics.

SEC Form 4

FORM 4

UNITED 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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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^*

Tariq Musa

(Last) (First) (Middle)

3100 HANOVER STREET

(Street)

PALO ALTO CA 94304

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Guardant Health, Inc. [ GH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/15/2025		M		250	A	$0	7,574	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0	08/15/2025		M			250	(1)	(2)	Common Stock	250	$0	4,747	D

Explanation of Responses:

1. The restricted stock units granted on March 6, 2023 vests over a four-year period. 25% of the shares vested on the one-year anniversary of March 15, 2023 and the remaining 75% vests monthly for the three-year period thereafter.

2. Not applicable for Restricted Stock Units.

Remarks:

	/s/ John G. Saia, as attorney-in-fact for Musa Tariq	08/18/2025
	** Signature of Reporting Person	Date
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).
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