GH
Guardant Health Inc
178.80$
-3.5%
vs. previous close
Closing price · As of: Oct 30, 2026
Ownership
Ownership Structure
Who owns Guardant Health Inc (GH)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 96.5% of the shares are freely tradable; institutional investors hold 106.0%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
106.0%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
4.0%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
96.5%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
9.3%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
134Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 5.68 | 7,622,935 | -34.0 | 06/30/2026 |
| T. Rowe Price Associates, Inc. | 4.85 | 6,514,952 | -7.2 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.29 | 5,755,857 | +2.3 | 06/30/2026 |
| FMR Inc | 4.09 | 5,488,272 | +33.3 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.06 | 5,445,785 | -6.7 | 06/30/2026 |
| Amvescap Plc. | 3.30 | 4,429,755 | -10.4 | 06/30/2026 |
| The Goldman Sachs Group Inc | 2.81 | 3,775,895 | -14.9 | 06/30/2026 |
| Two Sigma Investments LLC | 2.77 | 3,719,301 | -12.1 | 06/30/2026 |
| Capital Research & Mgmt Co - Division 3 | 2.53 | 3,399,604 | -2.3 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 4,048,847 | +1.2 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Eltoukhy Helmy | Co-Chief Executive Officer | 2,018,949 | 360,988,081 $ | Aug 26, 2026 | indirect |
| Talasaz AmirAli | Co-Chief Executive Officer | 1,879,866 | 336,120,041 $ | Aug 21, 2026 | indirect |
| Chudova Darya | Chief Technology Officer | 74,348 | 13,293,422 $ | Oct 1, 2026 | direct |
| Freeman Chris | Chief Commercial Officer | 69,647 | 12,452,884 $ | Oct 1, 2026 | direct |
| Bell Michael Brian | Chief Financial Officer | 55,182 | 9,866,542 $ | Oct 1, 2026 | direct |
| Kalia Kumud | Chief Information Officer | 42,773 | 7,647,812 $ | Oct 1, 2026 | direct |
| Saia John G. | Chief Legal Officer | 42,348 | 7,571,822 $ | Oct 1, 2026 | direct |
| Monroe Terilyn J. | Chief People Officer | 24,900 | 4,452,120 $ | Oct 1, 2026 | direct |
| Tariq Musa | Director | 11,583 | 2,071,040 $ | Oct 16, 2026 | direct |
| Mignone Roberto | Director | 10,538 | 1,884,194 $ | Oct 21, 2026 | direct |
| Krognes Steve E. | Director | 7,906 | 1,413,593 $ | Sep 16, 2026 | direct |
| Hidalgo Medina Manuel | Director | 5,252 | 939,058 $ | Oct 17, 2026 | direct |
| Clark Ian T | Director | 2,975 | 531,930 $ | Aug 4, 2026 | indirect |
| Azar Alex M II | Director | 893 | 159,668 $ | Oct 14, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 21, 2026 | Mignone Roberto | Director | Other | 264 | 0.00 | – |
| Oct 17, 2026 | Hidalgo Medina Manuel | Director | Other | 232 | 0.00 | – |
| Oct 16, 2026 | Tariq Musa | Director | Sell | 116 | 165.88 | 19,242 |
| Oct 15, 2026 | Tariq Musa | Director | Other | 250 | 0.00 | – |
| Oct 14, 2026 | Azar Alex M II | Director | Sell | 69 | 159.89 | 11,032 |
| Oct 12, 2026 | Azar Alex M II | Director | Other | 137 | 0.00 | – |
| Oct 1, 2026 | Chudova Darya | Chief Technology Officer | Other | 4,320 | 174.75 | 754,920 |
| Oct 1, 2026 | Chudova Darya | Chief Technology Officer | Other | 1,701 | 0.00 | – |
| Oct 1, 2026 | Chudova Darya | Chief Technology Officer | Other | 3,324 | 0.00 | – |
| Oct 1, 2026 | Chudova Darya | Chief Technology Officer | Other | 1,668 | 0.00 | – |
| Oct 1, 2026 | Chudova Darya | Chief Technology Officer | Other | 1,340 | 0.00 | – |
| Oct 1, 2026 | Kalia Kumud | Chief Information Officer | Other | 3,067 | 174.75 | 535,958 |
| Oct 1, 2026 | Kalia Kumud | Chief Information Officer | Other | 1,360 | 0.00 | – |
| Oct 1, 2026 | Kalia Kumud | Chief Information Officer | Other | 1,995 | 0.00 | – |
| Oct 1, 2026 | Kalia Kumud | Chief Information Officer | Other | 1,084 | 0.00 | – |
| Oct 1, 2026 | Kalia Kumud | Chief Information Officer | Other | 1,607 | 0.00 | – |
| Oct 1, 2026 | Freeman Chris | Chief Commercial Officer | Other | 3,143 | 174.75 | 549,239 |
| Oct 1, 2026 | Freeman Chris | Chief Commercial Officer | Other | 1,292 | 0.00 | – |
| Oct 1, 2026 | Freeman Chris | Chief Commercial Officer | Other | 2,527 | 0.00 | – |
| Oct 1, 2026 | Freeman Chris | Chief Commercial Officer | Other | 1,668 | 0.00 | – |
| Oct 1, 2026 | Freeman Chris | Chief Commercial Officer | Other | 1,929 | 0.00 | – |
| Oct 1, 2026 | Talasaz AmirAli | Co-Chief Executive Officer | Other | 17,087 | 174.75 | 2,985,953 |
| Oct 1, 2026 | Talasaz AmirAli | Co-Chief Executive Officer | Other | 9,716 | 0.00 | – |
| Oct 1, 2026 | Talasaz AmirAli | Co-Chief Executive Officer | Other | 23,997 | 0.00 | – |
| Oct 1, 2026 | Eltoukhy Helmy | Co-Chief Executive Officer | Other | 17,087 | 174.75 | 2,985,953 |
| Oct 1, 2026 | Eltoukhy Helmy | Co-Chief Executive Officer | Other | 9,716 | 0.00 | – |
| Oct 1, 2026 | Eltoukhy Helmy | Co-Chief Executive Officer | Other | 23,997 | 0.00 | – |
| Oct 1, 2026 | Saia John G. | Chief Legal Officer | Other | 3,706 | 174.75 | 647,624 |
| Oct 1, 2026 | Saia John G. | Chief Legal Officer | Other | 1,496 | 0.00 | – |
| Oct 1, 2026 | Saia John G. | Chief Legal Officer | Other | 2,925 | 0.00 | – |
| Oct 1, 2026 | Saia John G. | Chief Legal Officer | Other | 1,668 | 0.00 | – |
| Oct 1, 2026 | Saia John G. | Chief Legal Officer | Other | 974 | 0.00 | – |
| Oct 1, 2026 | Bell Michael Brian | Chief Financial Officer | Other | 3,914 | 174.75 | 683,972 |
| Oct 1, 2026 | Bell Michael Brian | Chief Financial Officer | Other | 1,871 | 0.00 | – |
| Oct 1, 2026 | Bell Michael Brian | Chief Financial Officer | Other | 3,324 | 0.00 | – |
| Oct 1, 2026 | Bell Michael Brian | Chief Financial Officer | Other | 2,085 | 0.00 | – |
| Oct 1, 2026 | Monroe Terilyn J. | Chief People Officer | Other | 2,098 | 174.75 | 366,626 |
| Oct 1, 2026 | Monroe Terilyn J. | Chief People Officer | Other | 1,360 | 0.00 | – |
| Oct 1, 2026 | Monroe Terilyn J. | Chief People Officer | Other | 2,659 | 0.00 | – |
| Sep 30, 2026 | Talasaz AmirAli | Co-Chief Executive Officer | Other | 1,428 | 178.36 | 254,698 |
| Sep 30, 2026 | Talasaz AmirAli | Co-Chief Executive Officer | Other | 2,817 | 0.00 | – |
| Sep 30, 2026 | Eltoukhy Helmy | Co-Chief Executive Officer | Other | 1,428 | 178.36 | 254,698 |
| Sep 30, 2026 | Eltoukhy Helmy | Co-Chief Executive Officer | Other | 2,817 | 0.00 | – |
| Sep 21, 2026 | Mignone Roberto | Director | Other | 264 | 0.00 | – |
| Sep 17, 2026 | Hidalgo Medina Manuel | Director | Other | 232 | 0.00 | – |
| Sep 16, 2026 | Tariq Musa | Director | Sell | 116 | 175.00 | 20,300 |
| Sep 16, 2026 | Krognes Steve E. | Director | Sell | 971 | 177.48 | 172,330 |
| Sep 16, 2026 | Krognes Steve E. | Director | Sell | 1,300 | 176.34 | 229,236 |
| Sep 16, 2026 | Krognes Steve E. | Director | Sell | 3,300 | 175.42 | 578,888 |
| Sep 16, 2026 | Krognes Steve E. | Director | Sell | 1,103 | 174.46 | 192,432 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.