Guardant Health co-CEO trust sells 100K GH shares

Guardant Health, Inc. Co-Chief Executive Officer Helmy Eltoukhy reported a series of open-market sales of the company’s common stock on June 5, 2026.

Rhea-AI Filing Summary

Guardant Health, Inc. Co-Chief Executive Officer Helmy Eltoukhy reported a series of open-market sales of the company’s common stock on June 5, 2026. Through the Helmy A. Eltoukhy Revocable Trust, he sold a total of 100,000 shares in seven transactions at weighted average prices between about $124.95 and $132.55 per share. Following these sales, the trust continues to hold approximately 2,012,919 shares of Guardant Health common stock indirectly attributed to Eltoukhy.

Insider Trade Summary

Net Seller: 100,000 shares

Net Sell 7 txns

Insider Eltoukhy Helmy

Role Co-Chief Executive Officer

Sold 100,000 shs ($12.63M)

Type	Security	Shares	Price	Value
Sale	Common Stock	49,716	$125.569	$6.24M
Sale	Common Stock	33,843	$126.3263	$4.28M
Sale	Common Stock	1,100	$127.0241	$140K
Sale	Common Stock	13,787	$128.2511	$1.77M
Sale	Common Stock	554	$130.2054	$72K
Sale	Common Stock	900	$131.7844	$119K
Sale	Common Stock	100	$132.55	$13K

Holdings After Transaction: Common Stock — 2,012,919 shares (Indirect, Shares held by Helmy A. Eltoukhy Revocable Trust)

Footnotes (6)

1. F1. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $124.95 to $125.94. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.
2. F2. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $125.95 to $126.93. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.
3. F3. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $126.965 to $127.030. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.
4. F4. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $128.250 to $128.335. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.
5. F5. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $130.02 to $131.00. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.
6. F6. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $131.36 to $132.18. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

Key Figures

Shares sold: 100,000 shares Highest reported sale price: $132.55 per share Lowest price range bound: $124.95 per share +2 more

5 metrics

Shares sold 100,000 shares Total Guardant Health common stock sold on June 5, 2026

Highest reported sale price $132.55 per share One transaction’s reported sales price for common stock

Lowest price range bound $124.95 per share Lower end of disclosed price range in footnotes

Post-transaction holdings 2,063,203 shares Common shares indirectly held by revocable trust after sales

Number of sale transactions 7 transactions Separate non-derivative open-market sale entries on June 5, 2026

Key Terms

open-market sale, weighted average sales price per share, Revocable Trust, indirect ownership

4 terms

open-market sale financial

"transaction_action: "open-market sale" for each common stock transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average sales price per share financial

"Represents the weighted average sales price per share. These shares were sold in multiple transactions..."

Revocable Trust financial

"nature_of_ownership: "Shares held by Helmy A. Eltoukhy Revocable Trust""

A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.

indirect ownership financial

"ownership_type: "indirect" and ownership_code: "I" for the transactions"

FAQ

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

What insider transaction did Guardant Health (GH) report for Helmy Eltoukhy?

Guardant Health reported that Co-Chief Executive Officer Helmy Eltoukhy, through his revocable trust, sold 100,000 shares of common stock in open-market transactions on June 5, 2026. These sales were disclosed as routine Form 4 insider transactions with detailed price ranges provided.

How many Guardant Health (GH) shares did Helmy Eltoukhy sell and at what prices?

Helmy Eltoukhy’s revocable trust sold 100,000 Guardant Health common shares across seven open-market trades. Weighted average prices for the trades ranged from about $124.95 to $132.55 per share, with specific price ranges detailed in the Form 4 footnotes for each transaction group.

Does Helmy Eltoukhy still hold Guardant Health (GH) shares after the reported sales?

Yes. After selling 100,000 shares, the Helmy A. Eltoukhy Revocable Trust is shown holding approximately 2,063,203 Guardant Health common shares. These holdings are reported as indirect ownership attributed to Eltoukhy, reflecting his ongoing substantial stake in the company following the transactions.

Were Helmy Eltoukhy’s Guardant Health (GH) share sales open-market transactions?

All reported trades are coded as “S” transactions, described as open-market or private sales of non-derivative common stock. The Form 4 specifies they were open-market sales, with each transaction group reported using weighted average sales prices and associated price ranges.

How many separate transactions did the Helmy A. Eltoukhy Revocable Trust execute in Guardant Health (GH) stock?

The filing shows seven separate non-derivative transactions, each involving sales of Guardant Health common stock on June 5, 2026. These are grouped with weighted average prices and detailed price ranges, together totaling 100,000 shares sold by the revocable trust.

What do the weighted average price footnotes mean in the Guardant Health (GH) Form 4?

Each footnote explains that the reported price is a weighted average for multiple trades within a price range. For example, some shares sold between $124.95 and $125.94, with full breakdowns available from the company or SEC staff upon request, as the filing notes.

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

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Accepted by SEC EDGAR 06/08/2026 - 06:29 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^*

Eltoukhy Helmy

(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
X	Officer (give title below)		Other (specify below)
	Co-Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/05/2026

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	06/05/2026		S		49,716	D	$125.569(1)	2,063,203	I	Shares held by Helmy A. Eltoukhy Revocable Trust
Common Stock	06/05/2026		S		33,843	D	$126.3263(2)	2,029,360	I	Shares held by Helmy A. Eltoukhy Revocable Trust
Common Stock	06/05/2026		S		1,100	D	$127.0241(3)	2,028,260	I	Shares held by Helmy A. Eltoukhy Revocable Trust
Common Stock	06/05/2026		S		13,787	D	$128.2511(4)	2,014,473	I	Shares held by Helmy A. Eltoukhy Revocable Trust
Common Stock	06/05/2026		S		554	D	$130.2054(5)	2,013,919	I	Shares held by Helmy A. Eltoukhy Revocable Trust
Common Stock	06/05/2026		S		900	D	$131.7844(6)	2,013,019	I	Shares held by Helmy A. Eltoukhy Revocable Trust
Common Stock	06/05/2026		S		100	D	$132.55	2,012,919	I	Shares held by Helmy A. Eltoukhy Revocable Trust

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

Explanation of Responses:

1. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $124.95 to $125.94. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

2. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $125.95 to $126.93. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

3. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $126.965 to $127.030. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

4. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $128.250 to $128.335. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

5. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $130.02 to $131.00. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

6. Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $131.36 to $132.18. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

Remarks:

	/s/ John G. Saia, as attorney-in-fact for Helmy Eltoukhy	06/08/2026
	** 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)