United States Biotechnology & Medical Research

Guardant Health Inc (GH)

Track

Over the past 90 days, Guardant Health Inc. insiders have executed 84 transactions, characterized by significant selling activity totaling approximately $248.5 million against $78,456 in purchases. Notable sales were conducted by Co-CEO AmirAli Talasaz and various directors. This activity follows a period where the stock price rose 70.5%, despite a recent earnings report missing expectations.
Ticker: GH Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Guardant Health Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Proposed sale 10 Aug 2026
Value US$4,464,471.03 | Price 451.98 | Shares 82,972
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-10 2026-08-10 PrS Proposed sale
2.6
Freeman Chris

Officer

Officer
82,972
451.98
US$4,464,471 		82,972 451.98 US$4,464,471
2026-08-06 2026-08-05 S Sale
1.9
Hidalgo Medina Manuel
Non-Executive Director
57,840 -16.2%
142.82
US$1,848,006 		57,840 -16.2% 142.82 US$1,848,006
2026-08-06 2026-08-05 S Sale
1.9
Hidalgo Medina Manuel
Non-Executive Director
33,100 -5.6%
470.67
US$143,433 		33,100 -5.6% 470.67 US$143,433
2026-08-05 2026-08-05 PrS Proposed sale
1.9
Hidalgo Medina Manuel

Director

Non-Executive Director
1,000
164.24
US$100,000 		1,000 164.24 US$100,000
2026-08-05 2026-08-05 PrS Proposed sale
1.7
Joyce Meghan V.

Former Affiliate
1,000
161.29
US$100,000 		1,000 161.29 US$100,000
2026-08-05 2026-08-04 S Sale
3.9
CLARK IAN T
Non-Executive Director
1,000 -63.1%
158.80
US$100,000 		1,000 -63.1% 158.80 US$100,000
2026-08-05 2026-08-04 S Sale
3.9
CLARK IAN T
Non-Executive Director
1,000 -53.0%
158.98
US$100,000 		1,000 -53.0% 158.98 US$100,000
2026-08-04 2026-08-04 PrS Proposed sale
3.9
CLARK IAN T

Director

Non-Executive Director
1,000
158.92
US$100,000 		1,000 158.92 US$100,000
2026-07-16 2026-07-16 S Sale
2.2
Tariq Musa
Non-Executive Director
116 -1.0%
163.29
US$18,942 		116 -1.0% 163.29 US$18,942
2026-07-16 2026-07-16 PrS Proposed sale
2.2
Tariq Musa

Director

Non-Executive Director
116
163.29
US$18,942 		116 163.29 US$18,942
2026-07-01 2026-07-01 PrS Proposed sale
1.7
Joyce Meghan V.

Director

Non-Executive Director
4,000
165.00
US$660,000 		4,000 165.00 US$660,000
2026-06-30 2026-06-29 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
40 -0.0%
153.00
US$6,120 		40 -0.0% 153.00 US$6,120
2026-06-30 2026-06-29 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
46,663 -2.4%
152.20
US$7,102,319 		46,663 -2.4% 152.20 US$7,102,319
2026-06-30 2026-06-29 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
70,513 -3.5%
151.47
US$10,680,315 		70,513 -3.5% 151.47 US$10,680,315
2026-06-30 2026-06-29 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
25,812 -1.3%
150.53
US$3,885,434 		25,812 -1.3% 150.53 US$3,885,434
2026-06-30 2026-06-26 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
52,935 -2.7%
151.16
US$8,001,628 		52,935 -2.7% 151.16 US$8,001,628
2026-06-30 2026-06-26 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
64,037 -3.2%
150.49
US$9,636,838 		64,037 -3.2% 150.49 US$9,636,838
2026-06-26 2026-06-26 PrS Proposed sale
3.2
Talasaz AmirAli

Officer

Officer
260,000
150.79
US$39,205,972 		260,000 150.79 US$39,205,972
2026-06-26 2026-06-26 PrS Proposed sale
3.2
Talasaz AmirAli

Officer

Officer
260,000
150.79
US$39,205,972 		260,000 150.79 US$39,205,972
2026-06-26 2026-06-26 PrS Proposed sale
1.7
Joyce Meghan V.

Director

Non-Executive Director
2,000
150.04
US$300,082 		2,000 150.04 US$300,082
2026-06-24 2026-06-24 PrS Proposed sale
1.7
Joyce Meghan V.

Director

Non-Executive Director
2,000
140.02
US$280,045 		2,000 140.02 US$280,045
2026-06-23 2026-06-22 S Sale
2.2
Tariq Musa
Non-Executive Director
1,951 -15.0%
131.16
US$255,893 		1,951 -15.0% 131.16 US$255,893
2026-06-23 2026-06-22 S Sale
1.8
POTTER MYRTLE S
Non-Executive Director
1,556 -6.9%
131.16
US$204,085 		1,556 -6.9% 131.16 US$204,085
2026-06-22 2026-06-22 PrS Proposed sale
2.2
Tariq Musa

Director

Non-Executive Director
1,951
131.16
US$255,893 		1,951 131.16 US$255,893
2026-06-22 2026-06-22 PrS Proposed sale
2.2
Tariq Musa

Director

Non-Executive Director
1,951
131.16
US$255,893 		1,951 131.16 US$255,893
2026-06-22 2026-06-22 PrS Proposed sale
1.8
POTTER MYRTLE S

Director

Non-Executive Director
1,556
131.16
US$204,085 		1,556 131.16 US$204,085
2026-06-22 2026-06-22 PrS Proposed sale
1.7
Joyce Meghan V.

Director

Non-Executive Director
6,203
131.00
US$812,604 		6,203 131.00 US$812,604
2026-06-16 2026-06-16 S Sale
2.2
Tariq Musa
Non-Executive Director
116 -1.3%
130.19
US$15,102 		116 -1.3% 130.19 US$15,102
2026-06-16 2026-06-16 PrS Proposed sale
2.2
Tariq Musa

Director

Non-Executive Director
116
130.19
US$15,102 		116 130.19 US$15,102
2026-06-30 2026-06-15 S Sale
2.5
Kalia Kumud

Chief Information Officer

Officer
600 -1.4%
131.08
US$78,648 		600 -1.4% 131.08 US$78,648
2026-06-30 2026-06-15 B Purchase
2.5
Kalia Kumud

Chief Information Officer

Officer
600 +1.5%
130.76
US$78,456 		600 +1.5% 130.76 US$78,456
2026-06-15 2026-06-12 PrS Proposed sale
2.5
Kalia Kumud

Policy-Making Officer

Officer
600
131.24
US$78,744 		600 131.24 US$78,744
2026-06-15 2026-06-12 PrS Proposed sale
2.5
Kalia Kumud

Policy-Making Officer

Officer
600
131.24
US$78,744 		600 131.24 US$78,744
2026-06-15 2026-06-11 S Sale
2.5
Kalia Kumud

Chief Information Officer

Officer
3,418 -7.7%
130.24
US$445,156 		3,418 -7.7% 130.24 US$445,156
2026-06-15 2026-06-11 PrS Proposed sale
2.5
Kalia Kumud

Officer

Officer
3,418
130.24
US$445,156 		3,418 130.24 US$445,156
2026-06-30 2026-06-10 S Sale
2.5
Kalia Kumud

Chief Information Officer

Officer
600 -1.4%
130.86
US$78,516 		600 -1.4% 130.86 US$78,516
2026-06-12 2026-06-10 S Sale
2.5
Kalia Kumud

Chief Information Officer

Officer
5,000 -10.1%
130.41
US$652,030 		5,000 -10.1% 130.41 US$652,030
2026-06-10 2026-06-10 PrS Proposed sale
2.5
Kalia Kumud

Officer

Officer
5,000
130.41
US$652,030 		5,000 130.41 US$652,030
2026-06-08 2026-06-05 S Sale
3.0
Bell Michael Brian

Chief Financial Officer

Officer
2,000 -4.0%
128.62
US$257,241 		2,000 -4.0% 128.62 US$257,241
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
100 -0.0%
132.55
US$13,255 		100 -0.0% 132.55 US$13,255
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
900 -0.0%
131.78
US$118,606 		900 -0.0% 131.78 US$118,606
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
554 -0.0%
130.21
US$72,134 		554 -0.0% 130.21 US$72,134
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
13,787 -0.7%
128.25
US$1,768,198 		13,787 -0.7% 128.25 US$1,768,198
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
1,100 -0.1%
127.02
US$139,727 		1,100 -0.1% 127.02 US$139,727
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
33,843 -1.6%
126.33
US$4,275,261 		33,843 -1.6% 126.33 US$4,275,261
2026-06-08 2026-06-05 S Sale
1.5
Eltoukhy Helmy

Co-Chief Executive Officer

Executive Director
49,716 -2.4%
125.57
US$6,242,788 		49,716 -2.4% 125.57 US$6,242,788
2026-06-05 2026-06-05 PrS Proposed sale
3.0
Bell Michael Brian

Officer

Officer
2,000
128.62
US$257,241 		2,000 128.62 US$257,241
2026-06-05 2026-06-05 PrS Proposed sale
1.5
Eltoukhy Helmy

Officer

Officer
100,000
126.30
US$12,629,970 		100,000 126.30 US$12,629,970
2026-06-05 2026-06-04 S Sale
3.4
Krognes Steve E.
Non-Executive Director
9,294 -47.6%
132.51
US$1,231,522 		9,294 -47.6% 132.51 US$1,231,522
2026-06-04 2026-06-04 PrS Proposed sale
3.4
Krognes Steve E.

Director

Non-Executive Director
9,294
132.51
US$1,231,522 		9,294 132.51 US$1,231,522
2026-06-04 2026-06-03 S Sale
1.7
Joyce Meghan V.
Non-Executive Director
106 -0.9%
129.31
US$13,707 		106 -0.9% 129.31 US$13,707
2026-06-04 2026-06-03 S Sale
1.7
Joyce Meghan V.
Non-Executive Director
650 -5.4%
128.02
US$83,213 		650 -5.4% 128.02 US$83,213
2026-06-04 2026-06-03 S Sale
1.7
Joyce Meghan V.
Non-Executive Director
5,728 -32.4%
127.11
US$728,060 		5,728 -32.4% 127.11 US$728,060
2026-06-04 2026-06-03 S Sale
1.7
Joyce Meghan V.
Non-Executive Director
3,516 -16.6%
126.52
US$444,829 		3,516 -16.6% 126.52 US$444,829
2026-06-03 2026-06-03 PrS Proposed sale
1.7
Joyce Meghan V.

Director

Non-Executive Director
10,000
126.98
US$1,269,809 		10,000 126.98 US$1,269,809
2026-05-29 2026-05-28 S Sale
1.9
Hidalgo Medina Manuel
Non-Executive Director
1,000 -61.0%
130.06
US$130,060 		1,000 -61.0% 130.06 US$130,060
2026-05-28 2026-05-28 PrS Proposed sale
1.9
Hidalgo Medina Manuel

Director

Non-Executive Director
1,000
130.06
US$130,060 		1,000 130.06 US$130,060
2026-05-28 2026-05-27 S Sale
1.7
Saia John G.

Chief Legal Officer

Officer
6 -0.0%
126.08
US$756 		6 -0.0% 126.08 US$756
2026-05-28 2026-05-27 S Sale
1.7
Saia John G.

Chief Legal Officer

Officer
9,994 -21.7%
125.08
US$1,250,080 		9,994 -21.7% 125.08 US$1,250,080
2026-05-26 2026-05-22 S Sale
2.6
Freeman Chris

Chief Commercial Officer

Officer
24,406 -28.9%
118.67
US$2,896,360 		24,406 -28.9% 118.67 US$2,896,360
2026-05-22 2026-05-22 PrS Proposed sale
2.6
Freeman Chris

Officer

Officer
24,406
118.67
US$2,896,361 		24,406 118.67 US$2,896,361
2026-05-22 2026-05-22 PrS Proposed sale
EAGLE CRAIG

Former Affiliate
160,817
118.72
US$19,091,422 		160,817 118.72 US$19,091,422
2026-05-22 2026-05-20 S Sale
1.7
Saia John G.

Chief Legal Officer

Officer
7,181 -13.5%
107.23
US$769,996 		7,181 -13.5% 107.23 US$769,996
2026-05-22 2026-05-20 S Sale
1.7
Saia John G.

Chief Legal Officer

Officer
7,187 -11.9%
106.71
US$766,939 		7,187 -11.9% 106.71 US$766,939
2026-05-22 2026-05-20 S Sale
1.7
Saia John G.

Chief Legal Officer

Officer
5,632 -8.5%
105.34
US$593,293 		5,632 -8.5% 105.34 US$593,293
2026-05-22 2026-05-20 S Sale
3.9
CLARK IAN T
Non-Executive Director
6,876 -69.8%
106.90
US$735,049 		6,876 -69.8% 106.90 US$735,049
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
26,352 -1.4%
112.76
US$2,971,430 		26,352 -1.4% 112.76 US$2,971,430
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
37,900 -1.9%
112.02
US$4,245,547 		37,900 -1.9% 112.02 US$4,245,547
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
37,163 -1.9%
111.14
US$4,130,470 		37,163 -1.9% 111.14 US$4,130,470
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
28,908 -1.4%
110.10
US$3,182,652 		28,908 -1.4% 110.10 US$3,182,652
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
9,852 -0.5%
108.97
US$1,073,547 		9,852 -0.5% 108.97 US$1,073,547
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
33,069 -1.6%
108.11
US$3,574,961 		33,069 -1.6% 108.11 US$3,574,961
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
21,171 -1.0%
106.99
US$2,265,126 		21,171 -1.0% 106.99 US$2,265,126
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
1,200 -0.1%
105.88
US$127,050 		1,200 -0.1% 105.88 US$127,050
2026-05-22 2026-05-20 S Sale
3.2
Talasaz AmirAli

Co-Chief Executive Officer

Executive Director
11,919 -0.6%
105.01
US$1,251,589 		11,919 -0.6% 105.01 US$1,251,589
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