Guardant Health Inc
company insiders are selling
What this band has actually done: stocks scoring 0–25 beat the S&P 500 over the next three months 39.9% of the time, across 100,496 cases since 2015. That is below a coin flip — and so is every other band, because the median stock loses to a cap-weighted index. How we measured this
Guardant Health, Inc., a precision oncology company, provides blood and tissue tests, and data sets in the United States and internationally. The company offers Guardant360 CDx test, a liquid biopsy test for tumor mutation profiling; Guardant360 Liquid test, which measures 740+ genes and supports all guideline-recommended biomarkers; Guardant Reveal test, a blood test that utilizes circulating tumor DNA to detect cancer at the molecular level; and Guardant360 Tissue test, a molecular profiling test for tumor tissue that provides genomic, transcriptomic, and epigenomic insights. It also…
| Trade date | Member | Chamber | Action | Amount |
|---|---|---|---|---|
| 2025-11-21 | Sheldon Whitehouse · D-RI | Senate | Bought | $1,001 - $15,000 |
| 2022-02-28 | Donald S. Beyer, Jr. · D-VA | House | Sold | $1,001 - $15,000 |
| 2022-01-13 | Donald S. Beyer, Jr. · D-VA | House | Sold | $1,001 - $15,000 |
| 2021-12-22 | Donald S. Beyer, Jr. · D-VA | House | Sold | $1,001 - $15,000 |
| 2020-11-02 | Donald S. Beyer, Jr. · D-VA | House | Bought | $1,001 - $15,000 |
| 2020-10-22 | Donald S. Beyer, Jr. · D-VA | House | Bought | $1,001 - $15,000 |
| 2020-10-05 | Donald S. Beyer, Jr. · D-VA | House | Bought | $1,001 - $15,000 |
| 2020-07-14 | Donald S. Beyer, Jr. · D-VA | House | Sold | $1,001 - $15,000 |
| 2020-05-01 | Donald S. Beyer, Jr. · D-VA | House | Sold | $1,001 - $15,000 |
| 2020-04-27 | Donald S. Beyer, Jr. · D-VA | House | Sold | $1,001 - $15,000 |
Show the other 1
| Trade date | Member | Chamber | Action | Amount |
|---|---|---|---|---|
| 2020-02-14 | Donald S. Beyer, Jr. · D-VA | House | Bought | $1,001 - $15,000 |
Markers sit on the transaction date the member disclosed, snapped to the nearest close on the chart. They are not the date the public found out — that came later, and the gap is its own page. Every marker is listed by name in the table above.
| Date | Insider | Title | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-08-21 | Talasaz AmirAli | Insider | SELL | 7,589 | $170.29 | $1,292,302 |
| 2026-08-21 | Talasaz AmirAli | Insider | SELL | 20,888 | $169.16 | $3,533,452 |
| 2026-08-21 | Talasaz AmirAli | Insider | SELL | 9,023 | $168.20 | $1,517,631 |
| 2026-08-12 | Monroe Terilyn J. | Insider | SELL | 400 | $167.92 | $67,168 |
| 2026-08-12 | Monroe Terilyn J. | Insider | SELL | 13,248 | $166.11 | $2,200,584 |
| 2026-08-12 | Monroe Terilyn J. | Insider | SELL | 19,014 | $165.16 | $3,140,310 |
| 2026-08-12 | Monroe Terilyn J. | Insider | SELL | 9,934 | $164.27 | $1,631,870 |
| 2026-08-12 | Monroe Terilyn J. | Insider | SELL | 3,704 | $163.41 | $605,286 |
| 2026-08-10 | Freeman Chris | Insider | SELL | 17,413 | $170.24 | $2,964,401 |
| 2026-08-10 | Freeman Chris | Insider | SELL | 35,364 | $169.63 | $5,998,926 |
| 2026-08-10 | Freeman Chris | Insider | SELL | 7,365 | $168.79 | $1,243,145 |
| 2026-08-10 | Freeman Chris | Insider | SELL | 3,463 | $167.38 | $579,639 |
| 2026-08-05 | Hidalgo Medina Manuel | Insider | SELL | 750 | $164.61 | $123,454 |
| 2026-08-05 | Hidalgo Medina Manuel | Insider | SELL | 950 | $163.94 | $155,748 |
| 2026-08-04 | CLARK IAN T | Insider | SELL | 5,092 | $158.80 | $808,626 |
| 2026-08-04 | CLARK IAN T | Insider | SELL | 9,088 | $158.98 | $1,444,825 |
| 2026-07-16 | Tariq Musa | Insider | SELL | 116 | $163.29 | $18,942 |
| 2026-06-22 | Tariq Musa | Insider | SELL | 1,951 | $131.16 | $255,893 |
| 2026-06-22 | POTTER MYRTLE S | Insider | SELL | 1,556 | $131.16 | $204,085 |
| 2026-06-16 | Tariq Musa | Insider | SELL | 116 | $130.19 | $15,102 |