Key facts
- This page summarizes AmirAli Talasaz's Form 4 filing for Guardant Health, Inc. (GH).
- 10 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 30 Jun 2026, 17:13.
AmirAli Talasaz - 26 Jun 2026 Form 4 Insider Report for Guardant Health, Inc. (GH)
- Reporting relationship
- Co-Chief Executive Officer, Director
- Issuer ticker
- GH
- Reported as of
- 26 Jun 2026
- Net transaction value
- -$39,312,654
- SEC form
- 4
- Accepted by SEC
- 30 Jun 2026, 17:13:45 UTC
- Prior SEC filing
- 22 May 2026
- Next SEC filing
- 02 Jul 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ John G. Saia, as attorney-in-fact for AmirAli Talasaz
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
AmirAli Talasaz filed Form 4 for Guardant Health, Inc. (GH) on 30 Jun 2026.
Change
- Previous filing in this sequence was filed on 22 May 2026.
- Current net transaction value: -$39,312,654.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001753159
Primary reporting owner
Talasaz AmirAli
- Relationship
- Co-Chief Executive Officer, Director
- Address
- 3100 HANOVER STREET, PALO ALTO
- Signature
- /s/ John G. Saia, as attorney-in-fact for AmirAli Talasaz
- Signature date
- 30 Jun 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
GH
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +111,804
- Change %
- +5.9%
- Price
- $4.18*
- Shares after
- 1,998,308
- Date
- 26 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
GH
transaction
Common Stock
Sale
- Transaction value
- $9,636,838
- Shares
- -64,037
- Change %
- -3.2%
- Price
- $150.49
- Shares after
- 1,934,271
- Date
- 26 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
- Footnotes
- F1
GH
transaction
Common Stock
Sale
- Transaction value
- $8,001,628
- Shares
- -52,935
- Change %
- -2.7%
- Price
- $151.16
- Shares after
- 1,881,336
- Date
- 26 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
- Footnotes
- F2
GH
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +143,028
- Change %
- +7.6%
- Price
- $4.18*
- Shares after
- 2,024,364
- Date
- 29 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
GH
transaction
Common Stock
Sale
- Transaction value
- $3,885,434
- Shares
- -25,812
- Change %
- -1.3%
- Price
- $150.53
- Shares after
- 1,998,552
- Date
- 29 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
- Footnotes
- F1
GH
transaction
Common Stock
Sale
- Transaction value
- $10,680,315
- Shares
- -70,513
- Change %
- -3.5%
- Price
- $151.47
- Shares after
- 1,928,039
- Date
- 29 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
- Footnotes
- F3
GH
transaction
Common Stock
Sale
- Transaction value
- $7,102,319
- Shares
- -46,663
- Change %
- -2.4%
- Price
- $152.20
- Shares after
- 1,881,376
- Date
- 29 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
- Footnotes
- F4
GH
transaction
Common Stock
Sale
- Transaction value
- $6,120
- Shares
- -40
- Change %
- -0%
- Price
- $153.00
- Shares after
- 1,881,336
- Date
- 29 Jun 2026
- Ownership
- Shares held by Talasaz and Eskandari 2017 Family Trust
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
GH
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -111,804
- Change %
- -39%
- Price
- $0.000000*
- Shares after
- 172,025
- Date
- 26 Jun 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 111,804
- Exercise price
- $4.18
- Footnotes
- F5
GH
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -143,028
- Change %
- -83%
- Price
- $0.000000*
- Shares after
- 28,997
- Date
- 29 Jun 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 143,028
- Exercise price
- $4.18
- Footnotes
- F5
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 5 footnotes
Footnote F1
Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $150.00 to $150.99. 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.
Footnote F2
Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $151.00 to $151.79. 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.
Footnote F3
Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $151.00 to $151.99. 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.
Footnote F4
Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $152.00 to $152.68. 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.
Footnote F5
The stock option vested in equal monthly installments over 48 months commencing on April 23, 2017.