Guardant Health grants Robert Parks 18,893 stock units

Available on EDGAR 11/12/2026 - 05:08 PM EST Accepted by SEC EDGAR 11/12/2026 - 05:08 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Guardant Health, Inc. Chief Accounting Officer Robert Parks received a direct award of 18,893 restricted stock units tied to common stock on November 9, 2026.

Insider Trade Summary

Grant/Award: 18,893 shares

Grant/Award 1 txn

Insider PARKS ROBERT

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1, F2	18,893	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 18,893 units (Direct)

Holdings Before and After: Restricted Stock Units, 0 to 18,893 units (Direct)

Footnotes (2)

1. F1. This represents a restricted stock unit award granted on November 9, 2026 that vests over a three-year period. 33% of the shares subject to such award will vest on the one-year anniversary of September 1, 2026 and the remaining 67% of the shares vests annually over the remaining two-year period thereafter.
2. F2. Not applicable for Restricted Stock Units.

Key Figures

Restricted stock unit award: 18,893 restricted stock units First vesting portion: 33% Remaining vesting portion: 67% +1 more

4 metrics

Restricted stock unit award 18,893 restricted stock units Granted to Chief Accounting Officer Robert Parks on November 9, 2026; tied to common stock.

First vesting portion 33% Vests on the one-year anniversary of September 1, 2026.

Remaining vesting portion 67% Vests annually over the remaining two-year period thereafter.

Vesting period Three years Period stated for the restricted stock unit award.

Key Terms

Restricted Stock Units

1 terms

Restricted Stock Units financial

"restricted stock unit award granted on November 9, 2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How does Robert Parks's GH restricted stock unit award vest?

The 18,893 restricted stock units granted to Robert Parks vest over three years: 33% on the one-year anniversary of September 1, 2026, and the remaining 67% annually over the remaining two-year period thereafter.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

PARKS ROBERT

(Last) (First) (Middle)

3100 HANOVER STREET

(Street)

PALO ALTO CALIFORNIA 94304

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/09/2026

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

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

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

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

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	11/09/2026		A		18,893		(1)	(2)	Common Stock	18,893	$0	18,893	D

Explanation of Responses:

1. This represents a restricted stock unit award granted on November 9, 2026 that vests over a three-year period. 33% of the shares subject to such award will vest on the one-year anniversary of September 1, 2026 and the remaining 67% of the shares vests annually over the remaining two-year period thereafter.

2. Not applicable for Restricted Stock Units.

Remarks:

	/s/ John G. Saia, as attorney-in-fact for Robert Parks	11/10/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)