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Who

Roberto Mignone

Director

Company insider

Files Form 4 as: Director, Guardant Health; Director, Teva Pharmaceutical Industries; Director, Avanti Acquisition; 10% owner, Response Genetics; Other, Cardiff Oncology; 10% owner, Orchid Cellmark; 10% owner, Trimeris.

In numbers

Trades disclosed
99
Buys
8
Sells
6
Bought
$26.5M
Sold
$52.3M
Companies
7
Companies where not an officer
7
First trade
21 Aug 2007
Last trade
21 Sep 2026
Last filed
22 Sep 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
GH Guardant HealthDirector · Diagnostics & Labs · last 21 Sep 20260 buys · 0 sells
TEVA Teva Pharmaceutical IndustriesDirector · Pharmaceuticals · last 18 Sep 20262 buys · 6 sells
Avanti AcquisitionDirector · last 1 Oct 20201 buy · 0 sells
Response Genetics10% owner · last 18 Nov 20150 buys · 0 sells
CRDF Cardiff OncologyOther · Biotechnology · last 27 Feb 20153 buys · 0 sells
Orchid Cellmark10% owner · last 12 Dec 20081 buy · 0 sells
Trimeris10% owner · last 21 Aug 20071 buy · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
21 Sep 2026filed 22 Sep 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Sep 2026filed 22 Sep 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Sep 2026filed 22 Sep 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Sep 2026filed 22 Sep 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
18 Sep 2026filed 22 Sep 2026TEVA Teva Pharmaceutical IndustriesPharmaceuticalsSEC FORM 4 Sold$14.4M367,600 at $39.06filing
18 Sep 2026filed 22 Sep 2026TEVA Teva Pharmaceutical IndustriesPharmaceuticalsSEC FORM 4 Sold$14.4M367,600 at $39.06filing
21 Aug 2026filed 24 Aug 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Aug 2026filed 24 Aug 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Aug 2026filed 24 Aug 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Aug 2026filed 24 Aug 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jul 2026filed 22 Jul 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jul 2026filed 22 Jul 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jul 2026filed 22 Jul 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jul 2026filed 22 Jul 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jun 2026filed 23 Jun 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jun 2026filed 23 Jun 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jun 2026filed 23 Jun 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
21 Jun 2026filed 23 Jun 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—264 at $0.00filing
17 Jun 2026filed 22 Jun 2026GH Guardant HealthDiagnostics & LabsSEC FORM 4 Code M—4,203 at $0.00filing
17 Jun 2026filed 22 Jun 2026GH Guardant Healthoption or derivative · Diagnostics & LabsSEC FORM 4 Code M—4,203 at $0.00filing

Sectors

Health Care11
Not placed3

Buys in green, sells in red, by the company’s sector.

Related people

Medina Manuel HidalgoDirector · Director at Guardant Health, filing Form 4 there in the last year
Musa TariqDirector · Director at Guardant Health, filing Form 4 there in the last year
Alex M. Azar IIDirector · Director at Guardant Health, filing Form 4 there in the last year
Chris FreemanChief Commercial Officer · Chief Commercial Officer at Guardant Health, filing Form 4 there in the last year
John G. SaiaChief Legal Officer · Chief Legal Officer at Guardant Health, filing Form 4 there in the last year
Brian SavageInterim Chief Legal Officer · Also traded TEVA in the last 90 days
Amir WeissChief Accounting Officer · Also traded TEVA in the last 90 days
Ronit Satchi-FainaroDirector · Also traded TEVA in the last 90 days