GH · Insider Trading

Guardant Health, Inc. Common Stock

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Every open-market purchase and sale reported by GH officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings

most recent

Open-Market Buys

code P

Sales

code S

Reporting Insiders

current holders

GH — Recent Form 4 Transactions (latest 2026-10-02)

Filed	Insider	Role	Type	Shares	Value
2026-10-02	Chris Freeman	Chief Commercial Officer	MIXED	+4,273	−$549.24K
2026-10-02	Terilyn J. Monroe	Chief People Officer	MIXED	+1,921	−$366.63K
2026-10-02	Helmy Eltoukhy	Co-Chief Executive Officer	MIXED	+18,015	−$3.24M
2026-10-02	Darya Chudova	Chief Technology Officer	MIXED	+3,713	−$754.92K
2026-10-02	AmirAli Talasaz	Co-Chief Executive Officer	MIXED	+18,015	−$3.24M
2026-10-02	Kumud Kalia	Chief Information Officer	MIXED	+2,979	−$535.96K
2026-10-02	John G. Saia	Chief Legal Officer	MIXED	+3,357	−$647.62K
2026-10-02	Michael Brian Bell	Chief Financial Officer	MIXED	+3,366	−$683.97K
2026-09-22	Roberto Mignone	Director	M	+264	—
2026-09-21	Medina Manuel Hidalgo	Director	M	+232	—
2026-09-17	Darya Chudova	Chief Technology Officer	Sell	−7,738	−$1.38M
2026-09-17	Alex M Azar II	Director	Sell	−826	−$144.55K
2026-09-17	Musa Tariq	Director	MIXED	+133	−$20.30K
2026-09-17	Steve E. Krognes	Director	Sell	−6,674	−$1.17M
2026-09-14	Alex M Azar II	Director	M	+1,651	—
2026-09-14	Kumud Kalia	Chief Information Officer	Sell	−4,000	−$632.19K
2026-08-27	Helmy Eltoukhy	Co-Chief Executive Officer	MIXED	−30,000	—
2026-08-24	Roberto Mignone	Director	M	+264	—
2026-08-24	AmirAli Talasaz	Co-Chief Executive Officer	Sell	−37,500	−$6.34M
2026-08-18	Musa Tariq	Director	MIXED	+134	−$18.15K
2026-08-18	Medina Manuel Hidalgo	Director	M	+232	—
2026-08-13	Terilyn J. Monroe	Chief People Officer	MIXED	—	−$6.59M
2026-08-12	Helmy Eltoukhy	Co-Chief Executive Officer	G	—	—
2026-08-12	John G. Saia	Chief Legal Officer	G	−800	—
2026-08-12	AmirAli Talasaz	Co-Chief Executive Officer	G	—	—
2026-08-11	Chris Freeman	Chief Commercial Officer	MIXED	—	−$6.07M
2026-08-06	Medina Manuel Hidalgo	Director	MIXED	−750	−$248.28K
2026-08-06	Medina Manuel Hidalgo	Director	MIXED	−750	−$248.28K
2026-08-05	Ian T Clark	Director	MIXED	−5,092	−$1.70M
2026-07-22	Roberto Mignone	Director	M	+264	—
2026-07-20	Medina Manuel Hidalgo	Director	M	+232	—
2026-07-16	Musa Tariq	Director	MIXED	+134	−$18.94K
2026-07-02	Terilyn J. Monroe	Chief People Officer	MIXED	+1,921	−$358.45K
2026-07-02	AmirAli Talasaz	Co-Chief Executive Officer	MIXED	+18,015	−$3.13M
2026-07-02	Chris Freeman	Chief Commercial Officer	MIXED	+4,273	−$536.39K
2026-07-02	Steve E. Krognes	Director	M	+155	—
2026-07-02	Helmy Eltoukhy	Co-Chief Executive Officer	MIXED	+18,015	−$3.13M
2026-07-02	John G. Saia	Chief Legal Officer	MIXED	+3,356	−$633.04K
2026-07-02	Kumud Kalia	Chief Information Officer	MIXED	+2,980	−$523.58K
2026-07-02	Michael Brian Bell	Chief Financial Officer	MIXED	+3,364	−$668.39K
2026-07-02	Darya Chudova	Chief Technology Officer	MIXED	+3,712	−$737.38K
2026-06-23	Musa Tariq	Director	Sell	−1,951	−$255.89K
2026-06-23	Roberto Mignone	Director	M	+528	—
2026-06-23	Myrtle S Potter	Director	Sell	−1,556	−$204.08K
2026-06-22	Alex M Azar II	Director	A	+2,711 deriv.	—
2026-06-22	Musa Tariq	Director	M	+4,203	—
2026-06-22	Vijaya Gadde	Director	M	+4,203	—
2026-06-22	Ian T Clark	Director	M	+5,092	—
2026-06-22	Meghan V. Joyce	Director	M	+4,203	—
2026-06-22	Roberto Mignone	Director	M	+4,203	—

GH — Current Insider Holders

Insider	Role	Shares Held	Value
Helmy Eltoukhy	Co-Chief Executive Officer	1,966,320	$349.61M
AmirAli Talasaz	Co-Chief Executive Officer	1,827,168	$324.87M
Darya Chudova	Chief Technology Officer	146,812	$26.10M
Craig Eagle	Chief Medical Officer	77,780	$13.83M
Chris Freeman	Chief Commercial Officer	67,303	$11.97M
Michael Brian Bell	Chief Financial Officer	59,096	$10.51M
John G. Saia	Chief Legal Officer	46,054	$8.19M
Kumud Kalia	Chief Information Officer	45,840	$8.15M
Vijaya Gadde	Director	28,517	$5.07M
Terilyn J. Monroe	Chief People Officer	26,998	$4.80M
Myrtle S Potter	Director	20,971	$3.73M
Meghan V. Joyce	Director	15,386	$2.74M
Musa Tariq	Director	11,449	$2.04M
Ian T Clark	Director	10,322	$1.84M
Roberto Mignone	Director	10,274	$1.83M
Steve E. Krognes	Director	7,906	$1.41M
Medina Manuel Hidalgo	Director	5,020	$892.56K
Alex M Azar II	Director	825	$146.69K

GH Insider Trading FAQ

Who are the insiders at GH?

18 officers, directors and 10%+ beneficial owners currently report holdings in GH via SEC Form 4.

Are GH insiders buying or selling?

Across the 50 most recent Form 4 filings for GH, 0 were open-market purchases (code P) and 7 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.

How current is GH insider data?

Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent GH filing is dated 2026-10-02.

How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the GH quote page; the site-wide leaderboard is on the insider transactions hub.