Guardant Health director exercises RSUs, gets new grant

Guardant Health director Roberto Mignone reported routine equity compensation activity.

Rhea-AI Filing Summary

Guardant Health director Roberto Mignone reported routine equity compensation activity. On June 17, 2026, he exercised restricted stock units covering 4,203 shares of Common Stock, bringing his direct Common Stock holdings to 8,954 shares after the transaction.

On the same date, he received a new grant of 2,711 Restricted Stock Units, each representing a right to receive one share of Common Stock. According to the footnotes, the RSU award that generated the 4,203 shares vested in full on the date of the 2026 Annual Meeting of Stockholders, while the new 2,711-unit award will vest in full on the earlier of the one-year anniversary of its June 17, 2026 grant date or the Company’s next annual meeting of stockholders.

Insider Trade Summary

4,203 shares exercised/converted

Exercise 3 txns

Insider MIGNONE ROBERTO

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	4,203	$0.00	$0.00
Grant/Award	Restricted Stock Units	2,711	$0.00	$0.00
Exercise	Common Stock	4,203	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 2,711 contracts (Direct); Common Stock — 8,954 shares (Direct)

Footnotes (3)

1. F1. The restricted stock unit award vested in full on the date of the 2026 Annual Meeting of Stockholders which was held on June 17, 2026.
2. F2. Not applicable for Restricted Stock Units.
3. F3. The restricted stock unit award vests in full on the one-year anniversary of the grant date, June 17, 2026, or the date of the Company's next annual meeting of stockholders, whichever is earlier.

Key Figures

RSUs exercised into Common Stock: 4,203 shares New RSU grant: 2,711 units Common Stock held after transaction: 8,954 shares +2 more

5 metrics

RSUs exercised into Common Stock 4,203 shares Exercise of restricted stock units on June 17, 2026

New RSU grant 2,711 units Restricted Stock Units granted on June 17, 2026

Common Stock held after transaction 8,954 shares Direct holdings following June 17, 2026 exercise

RSUs outstanding after grant 2,711 units Restricted Stock Units remaining after June 17, 2026 transactions

Exercise transactions 1 transaction, 4,203 shares Derivative exercise count and shares in transaction summary

Key Terms

Restricted Stock Units, Annual Meeting of Stockholders, derivative security, grant, award, or other acquisition

4 terms

Restricted Stock Units financial

"The restricted stock unit award vests in full on the one-year anniversary of the grant date"

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.

Annual Meeting of Stockholders financial

"vested in full on the date of the 2026 Annual Meeting of Stockholders which was held on June 17, 2026"

derivative security financial

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

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition"

FAQ

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

What insider transaction did Roberto Mignone report at Guardant Health (GH)?

Director Roberto Mignone reported equity compensation activity, not an open-market trade. He exercised restricted stock units into 4,203 shares of Common Stock and received a new grant of 2,711 Restricted Stock Units on June 17, 2026.

How many Guardant Health shares does Roberto Mignone hold after this Form 4?

After the reported transactions, Roberto Mignone directly holds 8,954 shares of Guardant Health Common Stock. He also holds 2,711 Restricted Stock Units, each representing a contingent right to receive one additional share of Common Stock when the award vests.

Did the Guardant Health (GH) Form 4 show any stock sales by Roberto Mignone?

The filing does not report any stock sales. It shows an exercise of restricted stock units into 4,203 Common Stock shares and a new grant of 2,711 Restricted Stock Units, all characterized as acquisitions rather than dispositions.

What are the key RSU grant details for Roberto Mignone at Guardant Health?

Mignone received a grant of 2,711 Restricted Stock Units on June 17, 2026. The award vests in full on the earlier of the one-year anniversary of the grant date or the date of Guardant Health’s next annual meeting of stockholders.

When did Roberto Mignone’s vested RSUs at Guardant Health fully vest?

The restricted stock unit award that produced 4,203 shares vested in full on the date of Guardant Health’s 2026 Annual Meeting of Stockholders, which was held on June 17, 2026, according to the Form 4 footnotes.

What type of securities did Roberto Mignone acquire in the latest Guardant Health Form 4?

He acquired 4,203 shares of Guardant Health Common Stock through the exercise of restricted stock units and was awarded 2,711 new Restricted Stock Units, which are derivative securities linked to future delivery of Common Stock.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 06/22/2026 - 05:54 PM EDT 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)
06/17/2026

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	06/17/2026		M		4,203	A	$0	8,954	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	06/17/2026		M			4,203	(1)	(2)	Common Stock	4,203	$0	0	D
Restricted Stock Units	$0	06/17/2026		A		2,711		(3)	(2)	Common Stock	2,711	$0	2,711	D

Explanation of Responses:

1. The restricted stock unit award vested in full on the date of the 2026 Annual Meeting of Stockholders which was held on June 17, 2026.

2. Not applicable for Restricted Stock Units.

3. The restricted stock unit award vests in full on the one-year anniversary of the grant date, June 17, 2026, or the date of the Company's next annual meeting of stockholders, whichever is earlier.

Remarks:

	/s/ John G. Saia, as attorney-in-fact for Roberto A. Mignone	06/22/2026
	** 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)