Transaction · 0001753159-26-000020

Talasaz AmirAli

Talasaz AmirAli, CEO, reported an open-market or private sale at Guardant Health, Inc. involving 20888.000000 shares for an estimated $3533451.68. Reported holdings after the transaction were 45089.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SCEO
GHGuardant Health, Inc.
Filing timeAug 24
Trade dateAug 21, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$163.18
Pre-filing
1mo ago -7.6%1w ago -3.7%1d ago +2.9%
Returns since
7d +2.0%30d +2.0%90d +2.0%180d +2.0%1y +2.0%

GH price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
GH since 2026-08-24Filed 11 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001753159-26-000020
Common Stock
Transaction date
Aug 21, 2026
Filed Aug 24, 2026, 09:21 PM · 3d delay
Shares
20.8k sh
$16.9k per share
Estimated value
-$353M
Computed from shares × price
Holdings after
45.0k sh
Indirect · Shares held by the Talasaz Family Foundation

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Large Holdings Reduction Large Sale Repeat Seller
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Co-Chief Executive Officer

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $167.81 to $168.60. The Reporting Person has provided to the Issuer, and…

  2. F2

    Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $168.87 to $169.73. The Reporting Person has provided to the Issuer, and…

  3. F3

    Represents the weighted average sales price per share. These shares were sold in multiple transactions at prices ranging from $169.88 to $170.50. The Reporting Person has provided to the Issuer, and…

Original filing · 0001753159-26-000020
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

GH