STOCK TITAN

Guardant Health (GH) co-CEO reports RSU vesting, tax-share withholdings and over 2.1M shares held

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Guardant Health, Inc. co-Chief Executive Officer Helmy Eltoukhy reported routine equity compensation activity involving restricted stock units and related common stock. On March 31 and April 1, 2026, multiple restricted stock unit awards converted into an aggregate of tens of thousands of shares of common stock at a $0.00 exercise price.

To cover associated tax obligations upon these vesting events, a total of 18,515 shares of common stock were retained by the company at prices of $92.37 and $91.15 per share, characterized as tax-withholding dispositions rather than open-market sales. Following these transactions, a revocable trust associated with Eltoukhy held 2,112,919 shares of common stock, and he directly held 68,011 restricted stock units. The filing reflects compensation-related vesting and tax withholding, not discretionary market trading.

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Insider Eltoukhy Helmy
Role Co-Chief Executive Officer
Type Security Shares Price Value
Exercise Restricted Stock Units 23,997 $0.00 --
Exercise Restricted Stock Units 9,716 $0.00 --
Exercise Common Stock 23,997 $0.00 --
Exercise Common Stock 9,716 $0.00 --
Tax Withholding Common Stock 17,087 $91.15 $1.56M
Exercise Restricted Stock Units 2,817 $0.00 --
Exercise Common Stock 2,817 $0.00 --
Tax Withholding Common Stock 1,428 $92.37 $132K
Holdings After Transaction: Restricted Stock Units — 71,992 shares (Direct); Common Stock — 2,120,290 shares (Indirect, Shares held by Helmy A. Eltoukhy Revocable Trust)
Footnotes (1)
  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. This represents a restricted stock unit award granted on March 17, 2026 that vests in four equal installments on the last day of each calendar quarter: March 31, 2026, June 30, 2026, September 30, 2026, and December 31, 2026. Not applicable for Restricted Stock Units. This represents a restricted stock unit award granted on March 18, 2024 that vests over a three-year period. 33% of the shares subject to such award vested on January 1, 2025 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter. This represents a restricted stock unit award granted on March 12, 2025 that vests over a three-year period. 33% of the shares subject to such award vested on January 1, 2026 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter.
RSU exercises April 1, 2026 23,997 shares Restricted Stock Units converted into common stock at $0.00 exercise price
Additional RSU exercises April 1, 2026 9,716 shares Restricted Stock Units converted into common stock at $0.00 exercise price
RSU exercises March 31, 2026 2,817 shares Restricted Stock Units converted into common stock at $0.00 exercise price
Tax withholding disposition 17,087 shares at $91.15 Shares retained by company on April 1, 2026 to satisfy tax obligations
Tax withholding disposition 1,428 shares at $92.37 Shares retained by company on March 31, 2026 to satisfy tax obligations
Indirect common stock holdings 2,112,919 shares Common stock held by Helmy A. Eltoukhy Revocable Trust after April 1, 2026 transactions
Direct RSU holdings 68,011 RSUs Restricted stock units directly held by Helmy Eltoukhy after reported conversions
Restricted Stock Units financial
"This represents a restricted stock unit award granted on March 17, 2026 that vests in four equal installments"
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"
derivative security financial
"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.
Revocable Trust financial
"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.
installments financial
"vests in four equal installments on the last day of each calendar quarter"
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Co-Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock03/31/2026M2,817A$02,097,721IShares held by Helmy A. Eltoukhy Revocable Trust
Common Stock03/31/2026F1,428(1)D$92.372,096,293IShares held by Helmy A. Eltoukhy Revocable Trust
Common Stock04/01/2026M23,997A$02,120,290IShares held by Helmy A. Eltoukhy Revocable Trust
Common Stock04/01/2026M9,716A$02,130,006IShares held by Helmy A. Eltoukhy Revocable Trust
Common Stock04/01/2026F17,087(1)D$91.152,112,919IShares 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units$003/31/2026M2,817 (2) (3)Common Stock2,817$08,451D
Restricted Stock Units$004/01/2026M23,997 (4) (3)Common Stock23,997$071,992D
Restricted Stock Units$004/01/2026M9,716 (5) (3)Common Stock9,716$068,011D
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. This represents a restricted stock unit award granted on March 17, 2026 that vests in four equal installments on the last day of each calendar quarter: March 31, 2026, June 30, 2026, September 30, 2026, and December 31, 2026.
3. Not applicable for Restricted Stock Units.
4. This represents a restricted stock unit award granted on March 18, 2024 that vests over a three-year period. 33% of the shares subject to such award vested on January 1, 2025 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter.
5. This represents a restricted stock unit award granted on March 12, 2025 that vests over a three-year period. 33% of the shares subject to such award vested on January 1, 2026 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter.
Remarks:
/s/ John G. Saia, as attorney-in-fact for Helmy Eltoukhy04/02/2026
** Signature of Reporting PersonDate
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.
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* Form 4: SEC 1474 (03-26)