Insider · CIK 0001753159

Talasaz AmirAli

Reports to the SEC for 1 company · PALO ALTO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001753159

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-01	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+24K sh	—	—	1,849,737
2026-10-01	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+9,716 sh	—	—	1,859,453
2026-10-01	GHGuardant Health, Inc.F Tax Payment	Director, Co-Chief Executive Officer	FTax Payment	−17.1K sh	$174.75	−$2.99M	1,842,366
2026-10-01	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−24K sh	—	—	23,998
2026-10-01	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−9,716 sh	—	—	48,580
2026-09-30	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+2,817 sh	—	—	1,827,168
2026-09-30	GHGuardant Health, Inc.F Tax Payment	Director, Co-Chief Executive Officer	FTax Payment	−1,428 sh	$178.36	−$255K	1,825,740
2026-09-30	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−2,817 sh	—	—	2,817
2026-08-21	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−9,023 sh	$168.20	−$1.52M	65,977
2026-08-21	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−20.9K sh	$169.16	−$3.53M	45,089
2026-08-21	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−7,589 sh	$170.29	−$1.29M	37,500
2026-08-10	GHGuardant Health, Inc.G Gift	Director, Co-Chief Executive Officer	GGift	−75K sh	—	—	1,824,351
2026-08-10	GHGuardant Health, Inc.G Gift	Director, Co-Chief Executive Officer	GGift	+75K sh	—	—	75,000
2026-07-01	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+24K sh	—	—	1,906,722
2026-07-01	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+9,715 sh	—	—	1,916,437
2026-07-01	GHGuardant Health, Inc.F Tax Payment	Director, Co-Chief Executive Officer	FTax Payment	−17.1K sh	$170.77	−$2.92M	1,899,351
2026-07-01	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−24K sh	—	—	47,995
2026-07-01	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−9,715 sh	—	—	58,296
2026-06-30	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+2,817 sh	—	—	1,884,153
2026-06-30	GHGuardant Health, Inc.F Tax Payment	Director, Co-Chief Executive Officer	FTax Payment	−1,428 sh	$150.03	−$214K	1,882,725
2026-06-30	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−2,817 sh	—	—	5,634
2026-06-29	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+143K sh	$4.18	+$598K	2,024,364
2026-06-29	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−25.8K sh	$150.53	−$3.89M	1,998,552
2026-06-29	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−70.5K sh	$151.47	−$10.7M	1,928,039
2026-06-29	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−46.7K sh	$152.20	−$7.1M	1,881,376
2026-06-29	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−40 sh	$153.00	−$6,120	1,881,336
2026-06-29	GHGuardant Health, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−143K sh	—	—	28,997
2026-06-26	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+112K sh	$4.18	+$467K	1,998,308
2026-06-26	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−64K sh	$150.49	−$9.64M	1,934,271
2026-06-26	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−52.9K sh	$151.16	−$8M	1,881,336
2026-06-26	GHGuardant Health, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−112K sh	—	—	172,025
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−200 sh	$100.95	−$20.2K	2,096,304
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−900 sh	$102.57	−$92.3K	2,095,404
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−1,366 sh	$103.82	−$142K	2,094,038
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−11.9K sh	$105.01	−$1.25M	2,082,119
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−1,200 sh	$105.88	−$127K	2,080,919
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−21.2K sh	$106.99	−$2.27M	2,059,748
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−33.1K sh	$108.11	−$3.57M	2,026,679
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−9,852 sh	$108.97	−$1.07M	2,016,827
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−28.9K sh	$110.10	−$3.18M	1,987,919
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−37.2K sh	$111.14	−$4.13M	1,950,756
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−37.9K sh	$112.02	−$4.25M	1,912,856
2026-05-20	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−26.4K sh	$112.76	−$2.97M	1,886,504
2026-05-12	GHGuardant Health, Inc.S Sale	Director, Co-Chief Executive Officer	SSale	−50K sh	$100.32	−$5.02M	2,096,504
2026-04-01	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+24K sh	—	—	2,153,875
2026-04-01	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+9,716 sh	—	—	2,163,591
2026-04-01	GHGuardant Health, Inc.F Tax Payment	Director, Co-Chief Executive Officer	FTax Payment	−17.1K sh	$91.15	−$1.56M	2,146,504
2026-04-01	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−24K sh	—	—	71,992
2026-04-01	GHGuardant Health, Inc. · Restricted Stock UnitsM Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	−9,716 sh	—	—	68,011
2026-03-31	GHGuardant Health, Inc.M Exercise/Conversion	Director, Co-Chief Executive Officer	MExercise/Conversion	+2,817 sh	—	—	2,131,306

Recent filings

Accepted (ET)
Oct 24
Talasaz AmirAli0001753159-26-000022
SEC(opens sec.gov)
Aug 244
Talasaz AmirAli0001753159-26-000020
SEC(opens sec.gov)
Aug 124
Talasaz AmirAli0001753159-26-000018
SEC(opens sec.gov)
Jul 24
Talasaz AmirAli0001753159-26-000016
SEC(opens sec.gov)

Companies

Guardant Health, Inc.Director, Co-Chief Executive OfficerGH

Address

3100 HANOVER STREET

PALO ALTO, CA, 94304