Insider Transactions in Q4 2025 at Guardant Health, Inc. (GH)
Insider Transaction List (Q4 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 21
2025
|
Roberto Mignone Director |
BUY
Exercise of conversion of derivative security
|
Direct |
264
+6.67%
|
-
|
|
Dec 17
2025
|
Musa Tariq Director |
SELL
Open market or private sale
|
Direct |
116
-1.43%
|
$11,716
$101.46 P/Share
|
|
Dec 17
2025
|
Medina Manuel Hidalgo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
232
+18.4%
|
-
|
|
Dec 15
2025
|
Chris Freeman Chief Commercial Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
594
-2.17%
|
$60,588
$102.67 P/Share
|
|
Dec 15
2025
|
Chris Freeman Chief Commercial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
1,402
+4.87%
|
-
|
|
Dec 15
2025
|
Kumud Kalia Chief Information Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
323
-1.4%
|
$32,946
$102.67 P/Share
|
|
Dec 15
2025
|
Kumud Kalia Chief Information Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
637
+2.69%
|
-
|
|
Dec 15
2025
|
John G. Saia Chief Legal Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
535
-1.21%
|
$54,570
$102.67 P/Share
|
|
Dec 15
2025
|
John G. Saia Chief Legal Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
1,020
+2.26%
|
-
|
|
Dec 15
2025
|
Musa Tariq Director |
BUY
Exercise of conversion of derivative security
|
Direct |
250
+2.99%
|
-
|
|
Dec 15
2025
|
Michael Brian Bell Chief Financial Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
1,659
-5.3%
|
$169,218
$102.67 P/Share
|
|
Dec 15
2025
|
Michael Brian Bell Chief Financial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
3,272
+5.08%
|
-
|
|
Dec 15
2025
|
Darya Chudova Chief Technology Officer |
SELL
Open market or private sale
|
Direct |
5,451
-43.74%
|
$566,904
$104.04 P/Share
|
|
Dec 15
2025
|
Craig Eagle Chief Medical Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
711
-1.56%
|
$72,522
$102.67 P/Share
|
|
Dec 15
2025
|
Craig Eagle Chief Medical Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
1,402
+2.98%
|
-
|
|
Dec 15
2025
|
Helmy Eltoukhy Co-Chief Executive Officer |
SELL
Open market or private sale
|
Direct |
90,565
-2.12%
|
$9,328,195
$103.91 P/Share
|
|
Dec 08
2025
|
Darya Chudova Chief Technology Officer |
SELL
Open market or private sale
|
Indirect |
13,664
-20.05%
|
$1,434,720
$105.04 P/Share
|
|
Dec 08
2025
|
Darya Chudova Chief Technology Officer |
SELL
Open market or private sale
|
Direct |
9,271
-42.66%
|
$982,726
$106.0 P/Share
|
|
Dec 08
2025
|
Darya Chudova Chief Technology Officer |
BUY
Other acquisition or disposition
|
Indirect |
68,144
+50.0%
|
-
|
|
Dec 08
2025
|
Darya Chudova Chief Technology Officer |
SELL
Other acquisition or disposition
|
Direct |
68,144
-75.82%
|
-
|
|
Dec 08
2025
|
Medina Manuel Hidalgo Director |
SELL
Open market or private sale
|
Direct |
1,250
-36.36%
|
$131,250
$105.0 P/Share
|
|
Dec 08
2025
|
Medina Manuel Hidalgo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
1,000
+32.82%
|
$32,000
$32.55 P/Share
|
|
Dec 08
2025
|
Kumud Kalia Chief Information Officer |
SELL
Open market or private sale
|
Direct |
2,000
-8.21%
|
$208,000
$104.6 P/Share
|
|
Dec 08
2025
|
Amir Ali Talasaz Co-Chief Executive Officer |
SELL
Open market or private sale
|
Indirect |
100,000
-8.16%
|
$10,500,000
$105.18 P/Share
|
|
Dec 08
2025
|
Amir Ali Talasaz Co-Chief Executive Officer |
BUY
Other acquisition or disposition
|
Indirect |
387,946
+47.06%
|
-
|
|
Dec 08
2025
|
Amir Ali Talasaz Co-Chief Executive Officer |
SELL
Other acquisition or disposition
|
Indirect |
387,946
-82.4%
|
-
|
|
Dec 05
2025
|
Ian T Clark Director |
SELL
Open market or private sale
|
Indirect |
28,611
-34.38%
|
$3,061,377
$107.33 P/Share
|
|
Dec 05
2025
|
Ian T Clark Director |
BUY
Exercise of conversion of derivative security
|
Indirect |
28,611
+26.1%
|
$1,029,996
$36.09 P/Share
|
|
Dec 05
2025
|
Michael Brian Bell Chief Financial Officer |
SELL
Open market or private sale
|
Direct |
80,362
-10.44%
|
$8,277,286
$104.0 P/Share
|
|
Dec 05
2025
|
Michael Brian Bell Chief Financial Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
56,287
+23.19%
|
$1,688,610
$30.62 P/Share
|
|
Dec 05
2025
|
Chris Freeman Chief Commercial Officer |
SELL
Open market or private sale
|
Direct |
31,452
-6.63%
|
$3,239,556
$103.76 P/Share
|
|
Dec 01
2025
|
Terilyn J. Monroe Chief People Officer |
SELL
Open market or private sale
|
Direct |
55,167
-15.71%
|
$5,847,702
$106.4 P/Share
|
|
Dec 01
2025
|
Terilyn J. Monroe Chief People Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
50,000
+26.45%
|
$1,200,000
$24.38 P/Share
|
|
Nov 30
2025
|
Steve E. Krognes Director |
BUY
Exercise of conversion of derivative security
|
Direct |
155
+0.83%
|
-
|
|
Nov 21
2025
|
Roberto Mignone Director |
BUY
Exercise of conversion of derivative security
|
Direct |
264
+7.14%
|
-
|
|
Nov 19
2025
|
Musa Tariq Director |
SELL
Open market or private sale
|
Direct |
116
-1.45%
|
$11,136
$96.25 P/Share
|
|
Nov 17
2025
|
Medina Manuel Hidalgo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
232
+18.14%
|
-
|
|
Nov 15
2025
|
Musa Tariq Director |
BUY
Exercise of conversion of derivative security
|
Direct |
250
+3.04%
|
-
|
|
Nov 07
2025
|
John G. Saia Chief Legal Officer |
SELL
Open market or private sale
|
Direct |
8,996
-17.24%
|
$863,616
$96.25 P/Share
|
|
Nov 07
2025
|
Medina Manuel Hidalgo Director |
SELL
Open market or private sale
|
Direct |
1,500
-40.61%
|
$142,500
$95.2 P/Share
|
|
Nov 07
2025
|
Medina Manuel Hidalgo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
1,000
+30.17%
|
$32,000
$32.55 P/Share
|
|
Oct 31
2025
|
Steve E. Krognes Director |
BUY
Exercise of conversion of derivative security
|
Direct |
154
+0.83%
|
-
|
|
Oct 21
2025
|
Roberto Mignone Director |
BUY
Exercise of conversion of derivative security
|
Direct |
3,167
+50.0%
|
-
|
|
Oct 17
2025
|
Medina Manuel Hidalgo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
232
+15.0%
|
-
|
|
Oct 17
2025
|
Myrtle S Potter Director |
SELL
Open market or private sale
|
Direct |
26
-0.14%
|
$1,716
$66.95 P/Share
|
|
Oct 17
2025
|
Musa Tariq Director |
SELL
Open market or private sale
|
Direct |
116
-1.48%
|
$7,656
$66.95 P/Share
|
|
Oct 15
2025
|
Myrtle S Potter Director |
BUY
Exercise of conversion of derivative security
|
Direct |
69
+0.37%
|
-
|
|
Oct 15
2025
|
Musa Tariq Director |
BUY
Exercise of conversion of derivative security
|
Direct |
250
+3.09%
|
-
|
|
Oct 01
2025
|
Craig Eagle Chief Medical Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
7,025
-13.68%
|
$435,550
$62.65 P/Share
|
|
Oct 01
2025
|
Craig Eagle Chief Medical Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
13,859
+8.35%
|
-
|