Guardant Health director gets 264 RSU shares

Guardant Health, Inc. (GH) director Roberto Mignone reported the vesting and conversion of 264 Restricted Stock Units into 264 shares of Common Stock on September 21, 2026, at a stated price of $0.00 per share.

Rhea-AI Filing Summary

Guardant Health, Inc. (GH) director Roberto Mignone reported the vesting and conversion of 264 Restricted Stock Units into 264 shares of Common Stock on September 21, 2026, at a stated price of $0.00 per share. After these events, he holds 10,274 shares of Common Stock and 6,600 Restricted Stock Units, all held directly. The Restricted Stock Units were granted on November 8, 2024 and vest over four years, with 25% vesting on October 21, 2025 and the remaining 75% vesting monthly over the following three years.

Insider Trade Summary

264 shares exercised/converted

Exercise 2 txns

Insider MIGNONE ROBERTO

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F1, F2	264	$0.00	$0.00
Exercise	Common Stock	264	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 6,600 contracts (Direct); Common Stock — 10,274 shares (Direct)

Footnotes (2)

1. F1. The restricted stock unit award granted on November 8, 2024 vests over a four-year period. 25% of the shares subject to such award vested on October 21, 2025 and the remaining 75% vests monthly for the three-year period thereafter.
2. F2. Not applicable for Restricted Stock Units.

Key Figures

RSUs converted: 264 Restricted Stock Units Common Stock acquired from RSU conversion: 264 shares Common Stock holdings after transaction: 10,274 shares +4 more

7 metrics

RSUs converted 264 Restricted Stock Units Vested and converted into Common Stock on September 21, 2026

Common Stock acquired from RSU conversion 264 shares Shares of Guardant Health Common Stock received on September 21, 2026

Common Stock holdings after transaction 10,274 shares Direct holdings reported after the September 21, 2026 events

Restricted Stock Unit holdings after transaction 6,600 units Direct RSU position reported following the vesting and conversion

RSU grant date November 8, 2024 Grant date of the Restricted Stock Unit award described in the footnote

Initial cliff vesting portion 25% Portion of the RSU award that vested on October 21, 2025

Remaining vesting portion 75% Balance of the RSU award vesting monthly over the three years after October 21, 2025

Key Terms

Restricted Stock Units, vests monthly, Common Stock

3 terms

Restricted Stock Units financial

"The restricted stock unit award granted on November 8, 2024 vests over a four-year period."

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.

vests monthly financial

"the remaining 75% vests monthly for the three-year period thereafter."

Common Stock financial

"underlying security title Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What insider transaction did GH director Roberto Mignone report on September 21, 2026?

He reported that 264 Restricted Stock Units vested and were converted into 264 shares of Common Stock on September 21, 2026, at a stated price of $0.00 per share, reflecting settlement of equity compensation rather than an open-market trade.

How many Guardant Health (GH) common shares does Roberto Mignone hold after this Form 4?

After the reported transactions, Roberto Mignone holds 10,274 shares of Guardant Health Common Stock, all reported as held directly.

How many Restricted Stock Units in GH does Roberto Mignone still hold after the vesting?

Following the vesting and conversion of 264 units, Roberto Mignone continues to hold 6,600 Restricted Stock Units of Guardant Health, reported as a direct holding.

What is the vesting schedule for Roberto Mignone’s November 8, 2024 GH RSU grant?

The award granted on November 8, 2024 vests over four years: 25% of the shares vested on October 21, 2025, and the remaining 75% vests monthly over the following three years.

Was the September 21, 2026 GH insider transaction under a Rule 10b5-1 trading plan?

The filing indicates that no Rule 10b5-1 trading plan was affirmed for the reported transactions, and the footnotes do not state that they were made under such a plan.

Did Roberto Mignone sell any GH shares for cash in this Form 4?

No. The Form 4 reports the vesting and conversion of 264 Restricted Stock Units into Common Stock at $0.00 per share, with no open-market purchases or sales disclosed.

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

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Available on EDGAR 09/22/2026 - 04:33 PM Accepted by SEC EDGAR 09/22/2026 - 04:33 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^*

MIGNONE ROBERTO

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/21/2026

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	09/21/2026		M		264	A	$0	10,274	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	09/21/2026		M			264	(1)	(2)	Common Stock	264	$0	6,600	D

Explanation of Responses:

1. The restricted stock unit award granted on November 8, 2024 vests over a four-year period. 25% of the shares subject to such award vested on October 21, 2025 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 Roberto A. Mignone	09/22/2026
	** 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)