Guardant Health CLO RSUs Vest; Shares Withheld for Tax

Guardant Health Chief Legal Officer John G. Saia reported routine equity compensation activity.

Rhea-AI Filing Summary

Guardant Health Chief Legal Officer John G. Saia reported routine equity compensation activity. On April 15, 2026, 7,569 restricted stock units converted into an equal number of Guardant Health common shares at no exercise price as part of a scheduled vesting.

Of these vested shares, 3,970 were retained by the company to satisfy Mr. Saia’s tax withholding obligations at a reference price of $84.86 per share, which is a tax-withholding disposition rather than an open-market sale. After these transactions, he directly owns 65,950 shares of Guardant Health common stock.

Insider Trade Summary

7,569 shares exercised/converted

Exercise 3 txns

Insider Saia John G.

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	7,569	$0.00	$0.00
Exercise	Common Stock	7,569	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	3,970	$84.86	$337K

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 65,950 shares (Direct)

Footnotes (3)

1. 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.
2. F2. The restricted stock unit award granted on August 8, 2022 vests over a four-year period. 25% of the shares subject to such award vested on April 15, 2023 and the remaining 75% vests annually during the three-year period thereafter.
3. F3. Not applicable for Restricted Stock Units.

Key Figures

RSUs vested and exercised: 7,569 shares Shares withheld for taxes: 3,970 shares Tax withholding reference price: $84.86 per share +1 more

4 metrics

RSUs vested and exercised 7,569 shares Restricted Stock Units converting to common stock on April 15, 2026

Shares withheld for taxes 3,970 shares Retained by company to meet tax withholding obligations

Tax withholding reference price $84.86 per share Value used for tax-withholding disposition of common stock

Shares owned after transactions 65,950 shares Direct ownership of Guardant Health common stock following Form 4 transactions

Key Terms

Restricted Stock Units, tax withholding obligations, vesting, Exercise or conversion of derivative security

4 terms

Restricted Stock Units financial

"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."

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.

tax withholding obligations financial

"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."

vesting financial

"The restricted stock unit award granted on August 8, 2022 vests over a four-year period."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Exercise or conversion of derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

FAQ

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

What insider stock activity did Guardant Health (GH) report for John G. Saia?

Guardant Health (GH) reported that Chief Legal Officer John G. Saia had 7,569 restricted stock units vest and convert into common shares. A portion of these shares was used to cover tax withholding, with the remainder increasing his direct equity stake in the company.

How many Guardant Health (GH) RSUs vested for John G. Saia and at what price?

On April 15, 2026, 7,569 restricted stock units for Guardant Health (GH) vested and converted into an equal number of common shares at an exercise price of $0.00. This reflects scheduled equity compensation vesting rather than an open-market purchase by the executive.

How many Guardant Health (GH) shares were used to cover John G. Saia’s taxes?

Guardant Health (GH) retained 3,970 common shares from John G. Saia’s vested award to satisfy tax withholding obligations. The shares were valued at $84.86 each for this purpose, and this retention is classified as a tax-withholding disposition, not a market sale transaction.

How many Guardant Health (GH) shares does John G. Saia now hold directly?

Following the vesting and related tax withholding, Chief Legal Officer John G. Saia holds 65,950 shares of Guardant Health (GH) common stock directly. This post-transaction total reflects his updated ownership position after the restricted stock units converted and some shares were withheld for taxes.

Was John G. Saia’s Guardant Health (GH) Form 4 transaction an open-market sale?

No, the Form 4 for Guardant Health (GH) shows a tax-withholding disposition, not an open-market sale. Shares were retained by the company solely to meet Mr. Saia’s tax obligations arising from RSU vesting, which is standard equity compensation administration.

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

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Accepted by SEC EDGAR 04/16/2026 - 07:58 PM Learn about SEC filing dates

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^*

Saia John G.

(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 Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/15/2026

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
Common Stock	04/15/2026		M		7,569	A	$0	69,920	D
Common Stock	04/15/2026		F		3,970(1)	D	$84.86	65,950	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	04/15/2026		M			7,569	(2)	(3)	Common Stock	7,569	$0	0	D

Explanation of Responses:

1. 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.

2. The restricted stock unit award granted on August 8, 2022 vests over a four-year period. 25% of the shares subject to such award vested on April 15, 2023 and the remaining 75% vests annually during the three-year period thereafter.

3. Not applicable for Restricted Stock Units.

Remarks:

	/s/ John G. Saia	04/16/2026
	** 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)