GH

Guardant Health, Inc.

NasdaqHealthcareServices-Medical Laboratories

Insider activity for last month from 08/04 to 09/04. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Latest filingAug 27, 2026Most recent Form 4
Total buying$00 buys
Total selling$636M4 sells
Net open-market-$636M5 insiders
Open-market mix
Buy vs sell distribution by transaction count
4 transactions
0 buys0%·100%4 sells

Insider activity report

Monthly open-market purchase and sale counts
Buys Sells
530-3-5transactionsAug 2026 sells: 4 transactions · $636M4AugSep

Transaction codes

By Form 4 transaction code in selected period
13transactions
  • M · Option exercise · dominant6 · 46%
  • S · Open-market sells4 · 31%
  • J · Other2 · 15%
  • G · Gifts1 · 8%

Activity by reported role

A joint filing can contribute to multiple roles
13transactions
  • Director · dominant7 · 54%
  • Chief executive officer6 · 46%

Distinct insiders active

Reporting-owner CIKs by month · peak Aug 2026 (5)
Aug 2026Sep 2026
5distinct insiders in 2 months

Reported Holdings After

Separated by insider, security, and ownership type
Talasaz AmirAliCommon Stock · Indirect · Shares held by the Talasaz Family Foundation
66.0k37.5kAug 21, 2026 · 37,500 shares owned afterAug 21, 2026 · 65,977 shares owned afterAug 21, 2026 · 45,089 shares owned afterAug 21, 2026Aug 21, 2026
45,089Aug 21, 2026
Tariq MusaCommon Stock · Direct
11.4k11.3kAug 15, 2026 · 11,432 shares owned afterAug 17, 2026 · 11,316 shares owned afterAug 15, 2026Aug 17, 2026
11,316Aug 17, 2026
Eltoukhy HelmyCommon Stock · Indirect · Shares held by Helmy A. Eltoukhy Revocable Trust
2.0M1.9MAug 26, 2026 · 1,940,934 shares owned afterAug 26, 2026 · 1,970,934 shares owned afterAug 26, 2026Aug 26, 2026
1,970,934Aug 26, 2026
Tariq MusaRestricted Stock Units · Direct
1.7k1.7kAug 15, 2026 · 1,749 shares owned afterAug 15, 2026Aug 15, 2026
1,749Aug 15, 2026
Hidalgo Medina ManuelCommon Stock · Direct
4.8k4.8kAug 17, 2026 · 4,788 shares owned afterAug 17, 2026Aug 17, 2026
4,788Aug 17, 2026
Hidalgo Medina ManuelRestricted Stock Units · Direct
5.3k5.3kAug 17, 2026 · 5,337 shares owned afterAug 17, 2026Aug 17, 2026
5,337Aug 17, 2026
Mignone RobertoRestricted Stock Units · Direct
6.9k6.9kAug 21, 2026 · 6,864 shares owned afterAug 21, 2026Aug 21, 2026
6,864Aug 21, 2026
Mignone RobertoCommon Stock · Direct
10.0k10.0kAug 21, 2026 · 10,010 shares owned afterAug 21, 2026Aug 21, 2026
10,010Aug 21, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells red
0 active days
Aug 04Sep 04
LessMore

Filing detail checks

Secondary metrics for the selected period
Largest buy-
Largest sale$353M
10b5-1 detected0
Amended rows0

GH transaction history

Filters apply within this company and selected period by default
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TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date

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Guardant Health, Inc. Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at Guardant Health, Inc.?

Eltoukhy Helmy, Talasaz AmirAli, MIGNONE ROBERTO, Hidalgo Medina Manuel, Tariq Musa.

When was the latest reported open-market purchase?

No code-P purchase is available for this period.

When was the latest reported open-market sale?

Talasaz AmirAli reported a sale on Aug 21, 2026 valued at $129M. Read the SEC filing.

What is the recent purchase and sale balance?

Net open-market selling in the selected period was $6,361,532.55. Sales can occur for many non-investment reasons.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.