GH Guardant Health, Inc.

NASDAQ
$157.38

Guardant Health, Inc. (GH) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with GH's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 1 buyer in the last 90 days 8 sellers in the last 90 days
Insiders buying
1
1 transaction
Insiders selling
14
139 transactions
Purchases
$78.5K
600 shares
Sales
$170.7M
1,379,868 shares
Net activity
-$170.6M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $170.7M 139 transactions · 1,379,868 shares

Largest single sale: $10.7M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: June 15, 2026 , by Kalia Kumud .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Talasaz AmirAli 3 fills Co-Chief Executive Officer Sell 37,500 $169.16 $6.3M 65,977 −36.2% of holding
Tariq Musa Director Sell 116 $156.45 $18.1K 11,316 −1% of holding
Monroe Terilyn J. 5 fills Chief People Officer Sell 46,300 $165.12 $7.6M 65,575 −41.4% of holding
Freeman Chris 4 fills Chief Commercial Officer Sell 63,605 $169.58 $10.8M 125,516 −33.6% of holding
Hidalgo Medina Manuel 2 fills Director Sell 1,700 $164.24 $279.2K 5,306 −24.3% of holding
CLARK IAN T 2 fills Director Sell 14,180 $158.92 $2.3M 8,067 −63.7% of holding
Tariq Musa Director Sell 116 $163.29 $18.9K 11,182 −1% of holding
Talasaz AmirAli 4 fills Co-Chief Executive Officer Sell 143,028 $151.54 $21.7M 1,998,552 −6.7% of holding
Talasaz AmirAli 2 fills Co-Chief Executive Officer Sell 116,972 $150.79 $17.6M 1,934,271 −5.7% of holding
Tariq Musa Director Sell 1,951 $131.16 $255.9K 11,048 −15% of holding
POTTER MYRTLE S Director Sell 1,556 $131.16 $204.1K 20,971 −6.9% of holding
Tariq Musa Director Sell 116 $130.19 $15.1K 8,796 −1.3% of holding
Kalia Kumud Chief Information Officer Sell 600 $131.08 $78.6K 40,814 −1.4% of holding
Kalia Kumud Chief Information Officer Buy 600 $130.76 $78.5K 41,414
Kalia Kumud Chief Information Officer Sell 3,418 $130.24 $445.2K 41,090 −7.7% of holding
Kalia Kumud 2 fills Chief Information Officer Sell 5,600 $130.45 $730.5K 44,508 −11.2% of holding
Eltoukhy Helmy 7 fills Co-Chief Executive Officer Sell 100,000 $126.30 $12.6M 2,063,203 −4.6% of holding
Bell Michael Brian Chief Financial Officer Sell 2,000 $128.62 $257.2K 47,509 −4% of holding
Krognes Steve E. Director Sell 9,294 $132.51 $1.2M 10,222 −47.6% of holding
Joyce Meghan V. 4 fills Director Sell 10,000 $126.98 $1.3M 17,667 −36.1% of holding
Hidalgo Medina Manuel Director Sell 1,000 $130.06 $130.1K 639 −61% of holding
Saia John G. 2 fills Chief Legal Officer Sell 10,000 $125.08 $1.3M 35,956 −21.8% of holding
Freeman Chris Chief Commercial Officer Sell 24,406 $118.67 $2.9M 60,034 −28.9% of holding
Talasaz AmirAli 12 fills Co-Chief Executive Officer Sell 210,000 $109.89 $23.1M 2,096,304 −9.1% of holding
Saia John G. 3 fills Chief Legal Officer Sell 20,000 $106.51 $2.1M 60,318 −24.9% of holding
CLARK IAN T Director Sell 6,876 $106.90 $735.0K 2,975 −69.8% of holding
Hidalgo Medina Manuel 2 fills Director Sell 1,250 $107.09 $133.9K 1,889 −39.8% of holding
Tariq Musa Director Sell 116 $95.96 $11.1K 8,662 −1.3% of holding
Talasaz AmirAli Co-Chief Executive Officer Sell 50,000 $100.32 $5.0M 2,096,504 −2.3% of holding
Tariq Musa Director Sell 116 $84.83 $9.8K 8,528 −1.3% of holding
Monroe Terilyn J. Chief People Officer Sell 3,832 $92.68 $355.1K 20,990 −15.4% of holding
Tariq Musa Director Sell 348 $88.09 $30.7K 8,394 −4% of holding
Bell Michael Brian Chief Financial Officer Sell 3,000 $87.04 $261.1K 43,601 −6.4% of holding
Hidalgo Medina Manuel 2 fills Director Sell 1,300 $91.54 $119.0K 1,493 −46.5% of holding
Kalia Kumud 2 fills Chief Information Officer Sell 40,000 $95.32 $3.8M 50,663 −44.1% of holding
Monroe Terilyn J. 3 fills Chief People Officer Sell 8,571 $114.09 $977.9K 27,858 −23.5% of holding
Monroe Terilyn J. 3 fills Chief People Officer Sell 10,031 $112.08 $1.1M 24,710 −28.9% of holding
Tariq Musa Director Sell 116 $101.46 $11.8K 7,993 −1.4% of holding
Eltoukhy Helmy 2 fills Co-Chief Executive Officer Sell 90,565 $103.82 $9.4M 2,053,763 −4.2% of holding
Chudova Darya Chief Technology Officer Sell 5,451 $104.04 $567.1K 7,012 −43.7% of holding
Talasaz AmirAli 6 fills Co-Chief Executive Officer Sell 100,000 $105.05 $10.5M 203,223 −33% of holding
Chudova Darya 2 fills Chief Technology Officer Sell 22,935 $105.43 $2.4M 54,480 −29.6% of holding
Kalia Kumud Chief Information Officer Sell 2,000 $104.60 $209.2K 22,365 −8.2% of holding
Hidalgo Medina Manuel 2 fills Director Sell 1,250 $105.00 $131.3K 1,047 −54.4% of holding
Bell Michael Brian 12 fills Chief Financial Officer Sell 80,362 $103.14 $8.3M 100,381 −44.5% of holding
Freeman Chris 11 fills Chief Commercial Officer Sell 31,452 $103.07 $3.2M 56,961 −35.6% of holding
CLARK IAN T 3 fills Director Sell 28,611 $107.19 $3.1M 30,306 −48.6% of holding
Monroe Terilyn J. 7 fills Chief People Officer Sell 55,167 $105.97 $5.8M 57,511 −49% of holding
Tariq Musa Director Sell 116 $96.25 $11.2K 7,859 −1.5% of holding
Saia John G. Chief Legal Officer Sell 8,996 $96.25 $865.9K 43,172 −17.2% of holding
Hidalgo Medina Manuel 2 fills Director Sell 1,500 $95.19 $142.8K 1,315 −53.3% of holding
Tariq Musa Director Sell 116 $66.95 $7.8K 7,725 −1.5% of holding
POTTER MYRTLE S Director Sell 26 $66.95 $1.7K 18,324 −0.1% of holding
Tariq Musa Director Sell 116 $55.63 $6.5K 7,591 −1.5% of holding
POTTER MYRTLE S Director Sell 26 $55.63 $1.4K 18,281 −0.1% of holding
Hidalgo Medina Manuel Director Sell 2,165 $54.16 $117.3K 851 −71.8% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.