Guardant Health affiliate sale notice lists 1,000-share exercise

Guardant Health, Inc. notice of proposed affiliate sales under Form 144.

Rhea-AI Filing Summary

Guardant Health, Inc. notice of proposed affiliate sales under Form 144. The filing lists scheduled restricted stock lapses of 33 shares on 09/17/2025 and 217 shares on 10/17/2025, and a stock option exercise for 1,000 shares on 05/20/2026 described as a broker payment for a cashless exercise. The filing also reports a sale of 1,300 shares by Manuel Hidalgo Medina on 03/06/2026 for $118,997.

Insights

Securities Compliance Specialist

Notice documents proposed affiliate dispositions and related exercises.

The filing lists specific dispositions tied to restricted stock lapses (33 and 217 shares) and a broker‑facilitated cashless option exercise of 1,000 shares on 05/20/2026. It also records a prior sale of 1,300 shares on 03/06/2026 for $118,997.

These items are routine disclosures under the transfer rules; timing and methods are described for individual lots. Subsequent filings will show actual market sales and any changes in proceeds or withholding details.

Key Figures

Restricted stock lapse: 33 shares Restricted stock lapse: 217 shares Stock option exercise (broker cashless): 1,000 shares +2 more

5 metrics

Restricted stock lapse 33 shares 09/17/2025

Restricted stock lapse 217 shares 10/17/2025

Stock option exercise (broker cashless) 1,000 shares 05/20/2026

Sale in past 3 months 1,300 shares 03/06/2026

Proceeds from prior sale $118,997 03/06/2026 sale by Manuel Hidalgo Medina

Key Terms

Form 144, Restricted Stock Lapse, Cashless Exercise, Broker Payment

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Lapse financial

"09/17/2025 | Restricted Stock Lapse"

Cashless Exercise financial

"Stock Option Exercise | Broker Payment for Cashless Exercise"

A cashless exercise is a way for an option holder to convert stock options into actual shares without paying the purchase price in cash; instead they immediately give up a portion of the newly issued shares to cover the cost and any withholding taxes. Investors care because this process increases the number of shares available and can slightly dilute existing holdings, while also signaling how insiders or employees are realizing compensation without needing cash — similar to paying for a purchase by handing over part of what you just bought.

Broker Payment financial

"Broker Payment for Cashless Exercise"

FAQ

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

What does Guardant Health's Form 144 disclose about planned sales?

It lists planned affiliate dispositions including restricted stock lapses for 33 shares on 09/17/2025 and 217 shares on 10/17/2025, plus a 1,000-share option exercise on 05/20/2026 described as a broker cashless exercise.

Who sold shares in the past three months for GH as reported here?

The filing reports that Manuel Hidalgo Medina sold 1,300 shares on 03/06/2026 for $118,997, as disclosed in the section listing securities sold during the past three months.

Does the Form 144 show proceeds or buyer details for the planned sales?

The filing provides a dollar amount only for the past sale ($118,997); it describes the 1,000-share item as a broker payment for a cashless exercise but does not list purchaser identities for proposed resales.

Are the restricted stock lapses reported in GH's Form 144 taxable events or sales?

The filing records restricted stock lapses of 33 and 217 shares with their dates; it does not characterize tax consequences. Lapses indicate vesting or release events, while separate resale intentions are reported on Form 144.

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

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Accepted by SEC EDGAR 05/20/2026 - 04:03 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001865525
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Guardant Health, Inc.
SEC File Number	001-38683
Address of Issuer	3100 HANOVER STREET PALO ALTO CALIFORNIA 94304
Phone	855-698-8887
Name of Person for Whose Account the Securities are To Be Sold	Hidalgo Medina Manuel
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	1250	133864.00	132599929	05/20/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/17/2025	Restricted Stock Lapse	Guardant Health, Inc.			33	09/17/2025	Equity Compensation
Common	10/17/2025	Restricted Stock Lapse	Guardant Health, Inc.			217	10/17/2025	Equity Compensation
Common	05/20/2026	Stock Option Exercise	Guardant Health, Inc.			1000	05/20/2026	Broker Payment for Cashless Exercise

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Manuel Hidalgo Medina 3100 HANOVER STREET PALO ALTO CA 94304	Guardant Health, Inc.	03/06/2026	1300	118997.00

144: Remarks and Signature

Remarks
Date of Notice	05/20/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Manuel Hidalgo Medina
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)