Notice of Proposed Sale · 144
Guardant Health, Inc.
GHNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- Guardant Health, Inc.
- Issuer CIK
- 0001576280
- SEC file number
- 001-38683
- Phone
- 855-698-8887
- Person for whose account securities are to be sold
- Talasaz AmirAli
- Relationships to issuer
- Officer
- Street
- 3100 HANOVER STREET
- City
- PALO ALTO
- State / country code
- CA
- Postal code
- 94304
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common Stock | 37,500 | 6,343,384.00 | 134,196,170 | 08/21/2026 | Nasdaq | Stifel Nicolaus & Company Inc |
Broker / market maker — proposed row 1, entry 1
- Name
- Stifel Nicolaus & Company Inc
- Street
- 501 N Broadway
- City
- St. Louis
- State / country code
- MO
- Postal code
- 63102
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common Stock | 09/22/2018 | Founder Shares | Issuer | 37,500 | N | 09/22/2018 | Founder Shares |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| AmirAli Talasaz | Common Stock | 06/26/2026 | 116,972 | 17,638,465.00 |
| AmirAli Talasaz | Common Stock | 06/29/2026 | 143,028 | 21,674,191.00 |
Seller — prior-sale row 1, entry 1
- Name
- AmirAli Talasaz
- Street
- 3100 HANOVER STREET
- City
- PALO ALTO
- State / country code
- CA
- Postal code
- 94304
Seller — prior-sale row 2, entry 1
- Name
- AmirAli Talasaz
- Street
- 3100 HANOVER STREET
- City
- PALO ALTO
- State / country code
- CA
- Postal code
- 94304
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Remarks
Shares were sold out of The Talasaz Family Foundation
Notice signature
- Notice date
- 08/21/2026
- Signed
- /s/ Brian Schneiweiss, as a duly authorized representative of STIFEL, as attorney-in-fact for AmirAli Talasaz
Company context
Guardant Health is a leading precision oncology company focused on guarding wellness and giving every person more time free from cancer. Founded in 2012, Guardant is transforming patient care and accelerating new cancer therapies by providing critical insights into what drives disease through its advanced blood and tissue tests, real-world data and AI analytics. Guardant tests help improve outcomes across all stages of care, including screening to find cancer early, monitoring for recurrence in early-stage cancer, and treatment selection for patients with advanced cancer.