AmirAli Talasaz insider trades: Guardant Health (GH) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where AmirAli reports to the SEC
Open-market buys and sales
79 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 21, 2026 | GH | ↓ Sell | 37,500 | $169.16 | $6.3M | Shares held by the Talasaz Family Founda | Aug 24, 2026 (3d) |
| Jun 29, 2026 | GH | ↓ Sell | 260,000 | $151.20 | $39.3M | Shares held by Talasaz and Eskandari 201 | Jun 30, 2026 (1d) |
| May 20, 2026 | GH | ↓ Sell | 210,000 | $109.89 | $23.1M | Shares held by Talasaz and Eskandari 201 | May 22, 2026 (2d) |
| May 12, 2026 | GH | ↓ Sell | 50,000 | $100.32 | $5.0M | Shares held by Talasaz and Eskandari 201 | May 13, 2026 (1d) |
| Dec 8, 2025 | GH | ↓ Sell | 50,000 | $105.05 | $5.3M | Shares held by AmirAli Talasaz 2018 Chil | Dec 10, 2025 (2d) |
| Dec 8, 2025 | GH | ↓ Sell | 50,000 | $105.05 | $5.3M | Shares held by Maryam Eskandari 2018 Chi | Dec 10, 2025 (2d) |
| Jul 1, 2025 | GH | ↓ Sell10b5-1 | 100,000 | $50.88 | $5.1M | Direct | Jul 2, 2025 (1d) |
| Jun 9, 2025 | GH | ↓ Sell10b5-1 | 119,284 | $50.09 | $6.0M | Direct | Jun 9, 2025 (0d) |
| May 2, 2025 | GH | ↓ Sell10b5-1 | 120,716 | $49.18 | $5.9M | Direct | May 5, 2025 (3d) |
| Mar 14, 2023 | GH | ↑ Buy | 48,500 | $25.79 | $1.3M | Direct | Mar 15, 2023 (1d) |
| Mar 14, 2023 | GH | ↑ Buy | 24,250 | $25.79 | $625K | Shares held by Maryam Eskandari 2018 Chi | Mar 15, 2023 (1d) |
| Mar 14, 2023 | GH | ↑ Buy | 24,250 | $25.79 | $625K | Shares held by AmirAli Talasaz 2018 Chil | Mar 15, 2023 (1d) |
| Nov 23, 2021 | GH | ↑ Buy | 104,500 | $96.12 | $10.0M | Direct | Nov 23, 2021 (0d) |
| Feb 11, 2021 | GH | ↓ Sell10b5-1 | 260,555 | $165.62 | $43.2M | Direct | Feb 12, 2021 (1d) |
| Feb 11, 2021 | GH | ↓ Sell10b5-1 | 32,218 | $165.03 | $5.3M | Shares held by Talasaz Investments, L.P. | Feb 12, 2021 (1d) |
| Feb 11, 2021 | GH | ↓ Sell10b5-1 | 6,613 | $168.46 | $1.1M | Shares held by Talasaz Investments, L.P. | Feb 12, 2021 (1d) |
| Feb 9, 2021 | GH | ↓ Sell10b5-1 | 395,680 | $162.21 | $64.2M | Direct | Feb 9, 2021 (0d) |
| Feb 9, 2021 | GH | ↓ Sell10b5-1 | 58,970 | $162.21 | $9.6M | Shares held by Talasaz Investments, L.P. | Feb 9, 2021 (0d) |
| Feb 4, 2021 | GH | ↓ Sell10b5-1 | 123,968 | $158.73 | $19.7M | Direct | Feb 5, 2021 (1d) |
| Feb 4, 2021 | GH | ↓ Sell10b5-1 | 18,432 | $158.73 | $2.9M | Shares held by Talasaz Investments, L.P. | Feb 5, 2021 (1d) |
| Feb 2, 2021 | GH | ↓ Sell10b5-1 | 226,637 | $156.58 | $35.5M | Direct | Feb 3, 2021 (1d) |
| Feb 2, 2021 | GH | ↓ Sell10b5-1 | 33,767 | $156.58 | $5.3M | Shares held by Talasaz Investments, L.P. | Feb 3, 2021 (1d) |
| Oct 27, 2020 | GH | ↓ Sell10b5-1 | 93,600 | $106.79 | $10.0M | Shares held by Talasaz Investments, L.P. | Oct 27, 2020 (0d) |
| Oct 16, 2020 | GH | ↓ Sell10b5-1 | 23,400 | $102.44 | $2.4M | Shares held by Talasaz Investments, L.P. | Oct 20, 2020 (4d) |
| Sep 25, 2020 | GH | ↓ Sell10b5-1 | 75,000 | $110.71 | $8.3M | Direct | Sep 29, 2020 (4d) |
| Sep 2, 2020 | GH | ↓ Sell10b5-1 | 75,000 | $94.15 | $7.1M | Direct | Sep 4, 2020 (2d) |
| Aug 4, 2020 | GH | ↓ Sell10b5-1 | 75,000 | $85.85 | $6.4M | Direct | Aug 5, 2020 (1d) |
| Jul 6, 2020 | GH | ↓ Sell10b5-1 | 75,000 | $83.93 | $6.3M | Direct | Jul 6, 2020 (0d) |
| Jun 3, 2020 | GH | ↓ Sell10b5-1 | 75,000 | $86.16 | $6.5M | Direct | Jun 4, 2020 (1d) |
| May 11, 2020 | GH | ↓ Sell10b5-1 | 298,413 | $89.51 | $26.7M | Direct | May 11, 2020 (0d) |
| May 6, 2020 | GH | ↓ Sell10b5-1 | 195,154 | $78.23 | $15.3M | Direct | May 6, 2020 (0d) |
| Apr 29, 2020 | GH | ↓ Sell10b5-1 | 56,433 | $80.31 | $4.5M | Direct | Apr 30, 2020 (1d) |
| Apr 20, 2020 | GH | ↓ Sell10b5-1 | 39,500 | $72.67 | $2.9M | Shares held by Talasaz and Eskandari 201 | Apr 21, 2020 (1d) |
| Apr 20, 2020 | GH | ↓ Sell10b5-1 | 10,500 | $72.67 | $763K | Direct | Apr 21, 2020 (1d) |
| Apr 2, 2020 | GH | ↓ Sell10b5-1 | 19,750 | $67.03 | $1.3M | Shares held by Talasaz and Eskandari 201 | Apr 6, 2020 (4d) |
| Apr 2, 2020 | GH | ↓ Sell10b5-1 | 5,250 | $67.03 | $352K | Direct | Apr 6, 2020 (4d) |
| Dec 20, 2019 | GH | ↓ Sell10b5-1 | 17,872 | $82.73 | $1.5M | Shares held by Talasaz and Eskandari 201 | Dec 23, 2019 (3d) |
| Dec 20, 2019 | GH | ↓ Sell10b5-1 | 6,389 | $82.73 | $529K | Direct | Dec 23, 2019 (3d) |
| Dec 20, 2019 | GH | ↓ Sell10b5-1 | 479 | $82.73 | $40K | Shares held by Sana Talasaz 2018 Irrevoc | Dec 23, 2019 (3d) |
| Dec 20, 2019 | GH | ↓ Sell10b5-1 | 479 | $82.73 | $40K | Shares held by Samar Talasaz 2018 Irrevo | Dec 23, 2019 (3d) |
| Dec 19, 2019 | GH | ↓ Sell10b5-1 | 175,681 | $80.71 | $14.2M | Shares held by Talasaz and Eskandari 201 | Dec 19, 2019 (0d) |
| Dec 19, 2019 | GH | ↓ Sell10b5-1 | 62,790 | $80.71 | $5.1M | Direct | Dec 19, 2019 (0d) |
| Dec 19, 2019 | GH | ↓ Sell10b5-1 | 4,724 | $80.70 | $381K | Shares held by Sana Talasaz 2018 Irrevoc | Dec 19, 2019 (0d) |
| Dec 19, 2019 | GH | ↓ Sell10b5-1 | 4,724 | $80.70 | $381K | Shares held by Samar Talasaz 2018 Irrevo | Dec 19, 2019 (0d) |
| Nov 26, 2019 | GH | ↓ Sell10b5-1 | 2,980 | $80.19 | $239K | Shares held by Talasaz and Eskandari 201 | Nov 29, 2019 (3d) |
| Nov 26, 2019 | GH | ↓ Sell10b5-1 | 1,065 | $80.19 | $85K | Direct | Nov 29, 2019 (3d) |
| Nov 26, 2019 | GH | ↓ Sell10b5-1 | 81 | $80.19 | $6K | Shares held by Samar Talasaz 2018 Irrevo | Nov 29, 2019 (3d) |
| Nov 26, 2019 | GH | ↓ Sell10b5-1 | 80 | $80.19 | $6K | Shares held by Sana Talasaz 2018 Irrevoc | Nov 29, 2019 (3d) |
| Nov 25, 2019 | GH | ↓ Sell10b5-1 | 33,258 | $80.19 | $2.7M | Shares held by Talasaz and Eskandari 201 | Nov 25, 2019 (0d) |
| Nov 25, 2019 | GH | ↓ Sell10b5-1 | 11,887 | $80.19 | $953K | Direct | Nov 25, 2019 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other GH insiders
Open-market trades in the last 12 months
About AmirAli Talasaz's insider trades
AmirAli Talasaz is Co-Chief Executive Officer at Guardant Health (GH). Since Apr 22, 2019, AmirAli has reported 4 open-market purchases worth $12.5M and 75 sales worth $469.5M on SEC Form 4. In the last 12 months: 6 sales ($84.3M).
69 sales (82% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include option exercises (37 filings), shares withheld for taxes (14 filings), gifts (4 filings), grants and awards (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every GH insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.