GH insider buying and SEC filings, explained
Guardant Health, Inc. · CIK 1576280
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Services-Medical Laboratories
- State of incorporation
- DE
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$78K
Insiders who bought
1
Sold (not marked 10b5-1)
$64.6M
Planned sales (10b5-1)
$81.1M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 16, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $165.88 ($19K), marked as a 10b5-1 plan trade. Holdings down 1% to 11,583 shares. | SEC filing Filed Oct 19, 2026, 5:02 PM ET |
| Oct 14, 2026 | Planned (10b5-1) | Alex M Azar II (Director) sold 69 shares at $159.89 ($11K), marked as a 10b5-1 plan trade. Holdings down 7% to 893 shares. | SEC filing Filed Oct 15, 2026, 6:02 PM ET |
| Sep 16, 2026 | Sale | Steve E. Krognes (Director) sold 6,674 shares at about $175.74 ($1.2M). Holdings down 46% to 7,906 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 17, 2026 |
| Sep 16, 2026 | Planned (10b5-1) | Alex M Azar II (Director) sold 826 shares at $175.00 ($145K), marked as a 10b5-1 plan trade. Holdings down 50% to 825 shares. | SEC filing Filed Sep 17, 2026 |
| Sep 15, 2026 | Sale | Darya Chudova (Chief Technology Officer) sold 7,738 shares at $178.00 ($1.4M). Holdings down 10% to 70,635 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 17, 2026 |
| Sep 16, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $175.00 ($20K), marked as a 10b5-1 plan trade. Holdings down 1% to 11,449 shares. | SEC filing Filed Sep 17, 2026 |
| Sep 11, 2026 | Sale | Kumud Kalia (Chief Information Officer) sold 4,000 shares at about $158.05 ($632K). Holdings down 9% to 39,794 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 14, 2026 |
| Aug 21, 2026 | Sale | AmirAli Talasaz (CEO and Director) sold 37,500 shares indirectly (by entity) at about $169.16 ($6.3M). Holdings by entity down 50% to 37,500 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 24, 2026 |
| Aug 17, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $156.45 ($18K), marked as a 10b5-1 plan trade. Holdings down 1% to 11,316 shares. | SEC filing Filed Aug 18, 2026 |
| Aug 5, 2026 | Sale | Medina Manuel Hidalgo (Director) sold 1,700 shares at about $164.24 ($279K). Holdings down 27% to 4,556 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 6, 2026 |
| Aug 4, 2026 | Sale | Ian T. Clark (Director) sold 14,180 shares indirectly (by trust) at about $158.92 ($2.3M). Holdings by trust down 83% to 2,975 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 5, 2026 |
| Jul 16, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $163.29 ($19K), marked as a 10b5-1 plan trade. Holdings down 1% to 11,182 shares. | SEC filing Filed Jul 16, 2026 |
| Jun 26–29, 2026 | Planned (10b5-1) | AmirAli Talasaz (CEO and Director) sold 260,000 shares indirectly (by trust) between Jun 26 and Jun 29 at about $151.20 ($39.3M), marked as a 10b5-1 plan trade. Holdings by trust down 12% to 1,881,336 shares. | SEC filing Filed Jun 30, 2026 |
| Jun 10–15, 2026 | Sale | Kumud Kalia (Chief Information Officer) sold 1,200 shares between Jun 10 and Jun 15 at about $130.97 ($157K). Holdings down 3% to 40,814 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 30, 2026 |
| Jun 15, 2026 | Purchase (code P) | Kumud Kalia (Chief Information Officer) bought 600 shares at $130.76 ($78K), reported as a purchase (code P). Holdings up 1% to 41,414 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 30, 2026 |
| Jun 22, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 1,951 shares at $131.16 ($256K), marked as a 10b5-1 plan trade. Holdings down 15% to 11,048 shares. | SEC filing Filed Jun 23, 2026 |
| Jun 22, 2026 | Planned (10b5-1) | Myrtle S. Potter (Director) sold 1,556 shares at $131.16 ($204K), marked as a 10b5-1 plan trade. Holdings down 7% to 20,971 shares. | SEC filing Filed Jun 23, 2026 |
| Jun 16, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $130.19 ($15K), marked as a 10b5-1 plan trade. Holdings down 1% to 8,796 shares. | SEC filing Filed Jun 16, 2026 |
| Jun 11, 2026 | Sale | Kumud Kalia (Chief Information Officer) sold 3,418 shares at $130.24 ($445K). Holdings down 8% to 41,090 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 15, 2026 |
| Jun 10, 2026 | Sale | Kumud Kalia (Chief Information Officer) sold 5,000 shares at $130.41 ($652K). Holdings down 10% to 44,508 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 12, 2026 |
| Jun 5, 2026 | Sale | Helmy Eltoukhy (CEO and Director) sold 100,000 shares indirectly (by trust) at about $126.30 ($12.6M). Holdings by trust down 5% to 2,012,919 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 8, 2026 |
| Jun 5, 2026 | Sale | Michael Brian Bell (CFO) sold 2,000 shares at about $128.62 ($257K). Holdings down 4% to 47,509 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 8, 2026 |
| Jun 4, 2026 | Sale | Steve E. Krognes (Director) sold 9,294 shares at about $132.51 ($1.2M). Holdings down 48% to 10,222 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 5, 2026 |
| Jun 3, 2026 | Planned (10b5-1) | Meghan V. Joyce (Director) sold 10,000 shares at about $126.99 ($1.3M), marked as a 10b5-1 plan trade. Holdings down 47% to 11,183 shares. | SEC filing Filed Jun 4, 2026 |
| May 28, 2026 | Sale | Medina Manuel Hidalgo (Director) sold 1,000 shares at $130.06 ($130K). Holdings down 61% to 639 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 29, 2026 |
| May 27, 2026 | Planned (10b5-1) | John G. Saia (Chief Legal Officer) sold 10,000 shares at about $125.08 ($1.3M), marked as a 10b5-1 plan trade. Holdings down 22% to 35,950 shares. | SEC filing Filed May 28, 2026 |
| May 20, 2026 | Sale | Medina Manuel Hidalgo (Director) sold 1,250 shares at about $107.09 ($134K). Holdings down 43% to 1,639 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 22, 2026 |
| May 20, 2026 | Planned (10b5-1) | AmirAli Talasaz (CEO and Director) sold 210,000 shares indirectly (by trust) at about $109.89 ($23.1M), marked as a 10b5-1 plan trade. Holdings by trust down 10% to 1,886,504 shares. | SEC filing Filed May 22, 2026 |
| May 20, 2026 | Planned (10b5-1) | John G. Saia (Chief Legal Officer) sold 20,000 shares at about $106.51 ($2.1M), marked as a 10b5-1 plan trade. Holdings down 30% to 45,950 shares. | SEC filing Filed May 22, 2026 |
| May 20, 2026 | Sale | Ian T. Clark (Director) sold 6,876 shares indirectly (by trust) at about $106.90 ($735K). Holdings by trust down 70% to 2,975 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 22, 2026 |
| May 18, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $95.96 ($11K), marked as a 10b5-1 plan trade. Holdings down 1% to 8,662 shares. | SEC filing Filed May 19, 2026 |
| May 12, 2026 | Planned (10b5-1) | AmirAli Talasaz (CEO and Director) sold 50,000 shares indirectly (by trust) at about $100.32 ($5.0M), marked as a 10b5-1 plan trade. Holdings by trust down 2% to 2,096,504 shares. | SEC filing Filed May 13, 2026 |
| Apr 16, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $84.83 ($10K), marked as a 10b5-1 plan trade. Holdings down 1% to 8,528 shares. | SEC filing Filed Apr 16, 2026 |
| Apr 6, 2026 | Planned (10b5-1) | Terilyn J. Monroe (Chief People Officer) sold 3,832 shares at $92.68 ($355K), marked as a 10b5-1 plan trade. Holdings down 15% to 20,990 shares. | SEC filing Filed Apr 7, 2026 |
| Mar 18, 2026 | Planned (10b5-1) | Musa Tariq (Director) sold 348 shares at $88.09 ($31K), marked as a 10b5-1 plan trade. Holdings down 4% to 8,394 shares. | SEC filing Filed Mar 19, 2026 |
| Mar 16, 2026 | Sale | Michael Brian Bell (CFO) sold 3,000 shares at about $87.04 ($261K). Holdings down 6% to 43,601 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Mar 6, 2026 | Sale | Medina Manuel Hidalgo (Director) sold 1,300 shares at about $91.54 ($119K). Holdings down 52% to 1,193 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 9, 2026 |
| Jan 21, 2026 | Planned (10b5-1) | Terilyn J. Monroe (Chief People Officer) sold 8,571 shares at about $114.10 ($978K), marked as a 10b5-1 plan trade. Holdings down 29% to 20,990 shares. | SEC filing Filed Jan 22, 2026 |
| Jan 7, 2026 | Planned (10b5-1) | Terilyn J. Monroe (Chief People Officer) sold 10,031 shares at about $112.08 ($1.1M), marked as a 10b5-1 plan trade. Holdings down 32% to 20,990 shares. | SEC filing Filed Jan 9, 2026 |
| Dec 17, 2025 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $101.46 ($12K), marked as a 10b5-1 plan trade. Holdings down 1% to 7,993 shares. | SEC filing Filed Dec 18, 2025 |
| Dec 15, 2025 | Sale | Darya Chudova (Chief Technology Officer) sold 5,451 shares at about $104.04 ($567K). Holdings down 44% to 7,012 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 17, 2025 |
| Dec 15, 2025 | Sale | Helmy Eltoukhy (CEO and Director) sold 90,565 shares at about $103.82 ($9.4M). Holdings down 4% to 2,047,143 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 17, 2025 |
| Dec 8, 2025 | Sale | Darya Chudova (Chief Technology Officer) sold 22,935 shares directly and indirectly (by trust) at about $105.43 ($2.4M). Direct holdings down 43% to 12,463 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 10, 2025 |
| Dec 8, 2025 | Sale | Kumud Kalia (Chief Information Officer) sold 2,000 shares at about $104.60 ($209K). Holdings down 8% to 22,365 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 10, 2025 |
| Dec 8, 2025 | Sale | Medina Manuel Hidalgo (Director) sold 1,250 shares at $105.00 ($131K). Holdings down 61% to 797 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 10, 2025 |
| Dec 8, 2025 | Sale | AmirAli Talasaz (CEO and Director) sold 100,000 shares indirectly (by trust) at about $105.06 ($10.5M). Holdings by trust down 23% to 168,223 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 10, 2025 |
| Dec 5, 2025 | Sale | Chris Freeman (Chief Commercial Officer) sold 31,452 shares at about $103.06 ($3.2M). Holdings down 55% to 25,987 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 8, 2025 |
| Dec 5, 2025 | Sale | Michael Brian Bell (CFO) sold 80,362 shares at about $103.14 ($8.3M). Holdings down 74% to 28,052 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 8, 2025 |
| Dec 1, 2025 | Planned (10b5-1) | Terilyn J. Monroe (Chief People Officer) sold 55,167 shares at about $105.97 ($5.8M), marked as a 10b5-1 plan trade. Holdings down 73% to 20,920 shares. | SEC filing Filed Dec 3, 2025 |
| Nov 19, 2025 | Planned (10b5-1) | Musa Tariq (Director) sold 116 shares at $96.25 ($11K), marked as a 10b5-1 plan trade. Holdings down 1% to 7,859 shares. | SEC filing Filed Nov 20, 2025 |
| Nov 7, 2025 | Sale | Medina Manuel Hidalgo (Director) sold 1,500 shares at about $95.19 ($143K). Holdings down 65% to 815 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 10, 2025 |
| Nov 7, 2025 | Sale | John G. Saia (Chief Legal Officer) sold 8,996 shares at $96.25 ($866K). Holdings down 17% to 43,172 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 10, 2025 |
143 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
| Tag | Items | Filed | Source |
|---|---|---|---|
| CEO departure Detected from the filing text | 8-K Item 5.02 | Nov 3, 2026, 8:19 AM ET | SEC filing |
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 4:40 PM ET 8-K | Executive or director change (Item 5.02) | SEC filing | |
| Nov 3, 2026, 8:19 AM ET 8-K | Executive or director change (Item 5.02) | CEO departure Detected from the filing text | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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