# EDGAR Filing Document

**Accession Number:** 0001576280
**File Stem:** 0001193125-26-275864
**Filing Date:** 2026-6
**Character Count:** 5777
**Document Hash:** 64372565158170dd7d0636cc7c186508
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-275864.hdr.sgml**: 20260618

**ACCESSION NUMBER**: 0001193125-26-275864

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260617

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260618

**DATE AS OF CHANGE**: 20260618

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Guardant Health, Inc.
- **CENTRAL INDEX KEY:** 0001576280
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MEDICAL LABORATORIES [8071]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 454139254
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38683
- **FILM NUMBER:** 261102653

**BUSINESS ADDRESS:**
- **STREET 1:** 3100 HANOVER STREET
- **CITY:** PALO ALTO
- **STATE:** CA
- **ZIP:** 94304
- **BUSINESS PHONE:** 855-698-8887

**MAIL ADDRESS:**
- **STREET 1:** 3100 HANOVER STREET
- **CITY:** PALO ALTO
- **STATE:** CA
- **ZIP:** 94304

?xml version='1.0' encoding='ASCII'? 8-K

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

### FORM 8-K

#### CURRENT REPORT

#### Pursuant to Section 13 or 15(d)

#### of the Securities Exchange Act of 1934

#### Date of report (Date of earliest event reported): June 17, 2026

## GUARDANT HEALTH, INC.

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-38683** | **45-4139254** |
| **(State or other jurisdiction**<br> **of incorporation or organization)** | **(Commission**<br> **File Number)** | **(IRS Employer**<br> **Identification No.)** |

---

#### 3100 Hanover Street

#### Palo Alto, California 94304

#### (Address of principal executive offices) (Zip Code)

#### 855-698-8887

#### (Registrant's telephone number, include area code)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | |
|:---|:---|
| **Title of each class** | **Name of each exchange**<br> **on which registered** |
| Common Stock, $0.00001 par value per share GH | The Nasdaq Global Select Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

#### Item 5.07. Submission of Matters to a Vote of Security Holders.
The annual meeting of stockholders (the "Annual Meeting") of Guardant Health, Inc. (the "Company") was held on June 17, 2026.

All of the nominees for director listed in Proposal 1 in the Company's Definitive Proxy Statement on Schedule 14A, as filed with the Securities and Exchange Commission on April 28, 2026 (the "Proxy Statement"), were elected to serve on the Company's board of directors by the following vote:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Name of Nominee** | **Votes For** | **Votes For** | **Votes Withheld** | **Votes Withheld** | **Broker Non-Votes** | **Broker Non-Votes** |
|  Ian Clark |  | 70526891 |  | 37916548 |  | 7714711 |
|  Manuel Hidalgo Medina |  | 81925123 |  | 26518316 |  | 7714711 |

---

Proposal 2 in the Proxy Statement, a proposal to ratify the selection of Deloitte & Touche LLP as the Company's independent registered public accounting firm for the year ending December 31, 2026, was approved by the following vote:

---

| | | |
|:---|:---|:---|
| **Votes For** | **Votes Against** | **Abstentions** |
| 115899030 | 15250 | 243870 |

---

Proposal 3 in the Proxy Statement, a proposal to approve, on an advisory (non-binding) basis, the compensation of the Company's named executive officers, was not approved by the following vote:

---

| | | | |
|:---|:---|:---|:---|
| **Votes For** | **Votes Against** | **Abstentions** | **Broker Non-Votes** |
| 98236639 | 9905190 | 301610 | 7714711 |

---

Proposal 4 in the Proxy Statement, a proposal to determine, on an advisory (non-binding) basis, the frequency of future stockholder advisory votes regarding the compensation of the Company's named executive officers, was determined as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Votes Cast for One Year** | **Votes Cast For Two Years** | **Votes Cast for Three Years** | **Abstentions** | **Broker Non-Votes** |
| 107997996 | 14303 | 265413 | 165727 | 7714711 |

---

------

#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **GUARDANT HEALTH, INC.** | **GUARDANT HEALTH, INC.** |
| Date: June 18, 2026 | By: | /s/ John G. Saia |
|  |  | John G. Saia |
|  |  | Chief Legal Officer and Corporate Secretary |

---