Guardant Health
Blood and tissue cancer tests spanning screening, monitoring, and treatment selection.
$161.50
After-hours close−0.05 (−0.03%)
At close$161.55(−4.14%)
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Breakdown13F · Form 4
Institutions 116.38%Insiders 1.87%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 134.20M · Float 128.82M · 96.0% free float
Institutions13F, as of Jun 30, 2026
622 holders · 156.17M shares · 156 new positions · 353 increased · 185 reduced · 48 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 7.62M | 5.68% | −3.93M | Aug 7, 2026 |
| Price T Rowe Associates Inc /MD/ | 6.51M | 4.85% | −508.7K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 5.76M | 4.29% | +131.7K | Aug 13, 2026 |
| FMR LLC | 5.49M | 4.09% | +1.37M | Aug 13, 2026 |
| Vanguard Portfolio Management LLC | 5.45M | 4.06% | −392.2K | Aug 13, 2026 |
| Invesco Ltd. | 4.43M | 3.30% | −516.7K | Aug 14, 2026 |
| Goldman Sachs Group Inc | 3.78M | 2.81% | −659.9K | Aug 14, 2026 |
| Two Sigma Investments, LP | 3.72M | 2.77% | −510.2K | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Wellington Group Holdings LLPincl. Wellington Management Company LLP, Wellington Management Group LLP +1 more | 8.23% | 10.13M | 13G | Nov 8, 2024 ↗ |
| BlackRock, Inc. | 7.50% | 9.29M | 13G | Apr 17, 2025 ↗ |
| Cadian Capital Management GP, LLCincl. Cadian Capital Management, LP, Eric Bannasch | 5.70% | 7.01M | 13G | Nov 13, 2024 ↗ |
| T. Rowe Price Associates, Inc. | 5.40% | 7.04M | 13G | May 15, 2026 ↗ |
| Deep Track Biotechnology Master Fund, Ltd.incl. David Kroin, Deep Track Capital, LP | 5.35% | 6.58M | Oct 7, 2024 ↗ | |
| Vanguard Capital Management | 5.02% | 6.59M | 13G | Apr 30, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Helmy Eltoukhy | director, officer: Co-Chief Executive Officer | 1.94M | 1.45% | Aug 27, 2026 |
| Darya Chudova | officer: Chief Technology Officer | 130.5K | 0.10% | Jul 2, 2026 |
| Craig Eagle | officer: Chief Medical Officer | 68.1K | 0.05% | Apr 2, 2026 |
| Chris Freeman | officer: Chief Commercial Officer | 65.4K | 0.05% | Aug 11, 2026 |
| Michael Brian Bell | officer: Chief Financial Officer | 50.5K | 0.04% | Jul 2, 2026 |
| Kumud Kalia | officer: Chief Information Officer | 42.4K | 0.03% | Jul 2, 2026 |
| John G. Saia | officer: Chief Legal Officer | 39.0K | 0.03% | Aug 12, 2026 |
| AmirAli Talasaz | director, officer: Co-Chief Executive Officer | 37.5K | 0.03% | Aug 24, 2026 |
| Vijaya Gadde | director | 28.5K | 0.02% | Jun 22, 2026 |
| Terilyn J. Monroe | officer: Chief People Officer | 23.0K | 0.02% | Aug 13, 2026 |
9 ten-percent owners hold 39.66M shares by Form 4, outside the officers-and-directors figure above · 10 people have not refiled in the last 18 months (304.2K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 21, 2026 | AmirAli Talasazdirector, officer: Co-Chief Executive Officer | Sale · 3 lots | 37,500 | $169.16 | 37,500 |
| Aug 17, 2026 | Musa Tariqdirector | Sale | 116 | $156.45 | 11,316 |
| Aug 12, 2026 | Terilyn J. Monroeofficer: Chief People Officer | Sale · 5 lots | 46,300 | $165.12 | 22,979 |
| Aug 10, 2026 | Chris Freemanofficer: Chief Commercial Officer | Sale · 4 lots | 63,605 | $169.58 | 65,374 |
| Aug 5, 2026 | Medina Manuel Hidalgodirector | Sale · 2 lots | 1,700 | $164.24 | 4,556 |
| Aug 4, 2026 | Ian T. Clarkdirector | Sale · 2 lots | 14,180 | $158.92 | 2,975 |
| Jul 16, 2026 | Musa Tariqdirector | Sale | 116 | $163.29 | 11,182 |
| Jun 29, 2026 | AmirAli Talasazdirector, officer: Co-Chief Executive Officer | Sale · 4 lots | 143,028 | $151.54 | 1,881,336 |
| Jun 26, 2026 | AmirAli Talasazdirector, officer: Co-Chief Executive Officer | Sale · 2 lots | 116,972 | $150.79 | 1,881,336 |
| Jun 15, 2026 | Kumud Kaliaofficer: Chief Information Officer | Sale | 600 | $131.08 | 40,814 |
CongressHouse and Senate disclosures
Not reported.