Guardant Health (GH) Latest Stock Analysis Report – Oct 15, 2026, 4:00 PM ET
Updated Oct 15, 2026, 4:00 PM ET
GH rises 1.8% to $165.88. Closed at $165.88, +1.77% vs the prior close of $162.99. Day range $159.00–$168.86, opened at $160.78.
GH daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 15, 2026 — GH rises 1.8% to $165.88
- Closed at $165.88, +1.77% vs the prior close of $162.99. Day range $159.00–$168.86, opened at $160.78.
- Volume was 1.33M shares, 0.7x its 50-day average of 1.91M.
- Price is -1.3% vs its 50-day average ($168.06) and +30.6% vs its 200-day average ($126.97).
- 52-week range $62.99–$191.05; today's close sits at 80% of that range, 13.2% below the 52-week high.
Oct 14, 2026 — GH rises 0.6% to $162.99
- Closed at $162.99, +0.56% vs the prior close of $162.09. Day range $159.00–$166.16, opened at $159.89.
- Volume was 1.28M shares, 0.7x its 50-day average of 1.93M.
- Price is -3.0% vs its 50-day average ($168.01) and +28.7% vs its 200-day average ($126.65).
- 52-week range $61.00–$191.05; today's close sits at 78% of that range, 14.7% below the 52-week high.
Oct 13, 2026 — GH dips 0.4% to $162.09, a 1-month low
- Closed at $162.09, -0.43% vs the prior close of $162.79. Day range $158.36–$164.53, opened at $161.95.
- Volume was 1.30M shares, 0.7x its 50-day average of 1.95M.
- Price is -3.5% vs its 50-day average ($167.94) and +28.3% vs its 200-day average ($126.35).
- 52-week range $61.00–$191.05; today's close sits at 78% of that range, 15.2% below the 52-week high.
Oct 12, 2026 — GH dips 2.8% to $162.79
- Closed at $162.79, -2.79% vs the prior close of $167.47. Day range $158.46–$168.69, opened at $168.26.
- Volume was 1.56M shares, 0.8x its 50-day average of 2.01M.
- Price is -3.0% vs its 50-day average ($167.88) and +29.1% vs its 200-day average ($126.05).
- 52-week range $61.00–$191.05; today's close sits at 78% of that range, 14.8% below the 52-week high.
Oct 9, 2026 — GH rises 1.2% to $167.47
- Closed at $167.47, +1.15% vs the prior close of $165.56. Day range $166.03–$170.81, opened at $166.03.
- Volume was 1.52M shares, 0.7x its 50-day average of 2.03M.
- Price is -0.2% vs its 50-day average ($167.86) and +33.2% vs its 200-day average ($125.75).
- 52-week range $61.00–$191.05; today's close sits at 82% of that range, 12.3% below the 52-week high.
Oct 8, 2026 — GH dips 1.6% to $165.56, 3 down days in a row
- Closed at $165.56, -1.65% vs the prior close of $168.33. Day range $161.61–$167.28, opened at $166.24.
- Volume was 1.60M shares, 0.8x its 50-day average of 2.05M.
- Price is -1.2% vs its 50-day average ($167.56) and +32.0% vs its 200-day average ($125.42).
- 52-week range $61.00–$191.05; today's close sits at 80% of that range, 13.3% below the 52-week high.
- That makes 3 straight losses.
Oct 7, 2026 — GH dips 1.4% to $168.33
- Closed at $168.33, -1.38% vs the prior close of $170.69. Day range $165.00–$171.55, opened at $166.50.
- Volume was 2.20M shares, 1.1x its 50-day average of 2.04M.
- Price is +0.7% vs its 50-day average ($167.13) and +34.6% vs its 200-day average ($125.09).
- 52-week range $61.00–$191.05; today's close sits at 83% of that range, 11.9% below the 52-week high.
Oct 6, 2026 — GH slides 8.8% to $170.69
- Closed at $170.69, -8.83% vs the prior close of $187.22. Day range $170.05–$191.05, opened at $188.00.
- Volume was 3.39M shares, 1.7x its 50-day average of 2.00M.
- Price is +2.4% vs its 50-day average ($166.63) and +36.8% vs its 200-day average ($124.73).
- 52-week range $61.00–$191.05; today's close sits at 84% of that range, 10.7% below the 52-week high.
Oct 5, 2026 — GH jumps 5.3% to $187.22, a 52-week high
- Closed at $187.22, +5.30% vs the prior close of $177.80. Day range $176.37–$187.69, opened at $177.45.
- Volume was 1.74M shares, 0.9x its 50-day average of 2.00M.
- Price is +12.7% vs its 50-day average ($166.13) and +50.5% vs its 200-day average ($124.37).
- 52-week range $61.00–$187.69; today's close sits at 100% of that range, 0.3% below the 52-week high.
Oct 2, 2026 — GH rises 1.7% to $177.80
- Closed at $177.80, +1.75% vs the prior close of $174.75. Day range $172.00–$179.17, opened at $173.32.
- Volume was 1.65M shares, 0.8x its 50-day average of 1.99M.
- Price is +7.5% vs its 50-day average ($165.33) and +43.5% vs its 200-day average ($123.93).
- 52-week range $60.45–$183.51; today's close sits at 95% of that range, 3.1% below the 52-week high.
GH latest news & SEC filings
Every SEC filing by or about GH in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 15, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Azar Alex M Ii sold 69 shares at $159.89 (≈$11.03K) on Oct 14, 2026; now holds 893
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 14, 2026 · 144 — Notice of proposed sale (Form 144)
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Oct 13, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Azar Alex M Ii converted options/RSUs into 137 shares on Oct 12, 2026; now holds 962
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Saia John G. converted options/RSUs into 974 shares on Oct 1, 2026; now holds 39,965
- Saia John G. converted options/RSUs into 1,668 shares on Oct 1, 2026; now holds 41,633
- Saia John G. converted options/RSUs into 2,925 shares on Oct 1, 2026; now holds 44,558
- Saia John G. converted options/RSUs into 1,496 shares on Oct 1, 2026; now holds 46,054
- Saia John G. had withheld for taxes 3,706 shares at $174.75 (≈$647.62K) on Oct 1, 2026; now holds 42,348
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Monroe Terilyn J. converted options/RSUs into 2,659 shares on Oct 1, 2026; now holds 25,638
- Monroe Terilyn J. converted options/RSUs into 1,360 shares on Oct 1, 2026; now holds 26,998
- Monroe Terilyn J. had withheld for taxes 2,098 shares at $174.75 (≈$366.63K) on Oct 1, 2026; now holds 24,900
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Oct 2, 2026 · 4 — Insider trade report (Form 4)
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Kalia Kumud converted options/RSUs into 1,607 shares on Oct 1, 2026; now holds 41,401
- Kalia Kumud converted options/RSUs into 1,084 shares on Oct 1, 2026; now holds 42,485
- Kalia Kumud converted options/RSUs into 1,995 shares on Oct 1, 2026; now holds 44,480
- Kalia Kumud converted options/RSUs into 1,360 shares on Oct 1, 2026; now holds 45,840
- Kalia Kumud had withheld for taxes 3,067 shares at $174.75 (≈$535.96K) on Oct 1, 2026; now holds 42,773
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Aug 14, 2026 · SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jul 30, 2026 · S-3ASR — S-3ASR filing
S-3ASR filing
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Jul 30, 2026 · 10-Q — Quarterly report (unaudited financial statements for the quarter)
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $334.98M (prior year $232.09M) (+44.3% vs Jun 30, 2025)
- Net income: -$120.14M (prior year -$99.90M) (loss widened vs Jun 30, 2025)
- Diluted EPS: -$0.90 (prior year -$0.80) (loss widened vs Jun 30, 2025)
Jul 30, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 28, 2026 · SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jun 18, 2026 · 8-K — Current report
Current report — a filing companies must make within 4 business days of a major event
- Item 5.07 — Reported shareholder vote results.
Things to know before you trade GH
- Last results release: Jul 30, 2026 (8-K Item 2.02). Previous ones: May 7, 2026, Feb 19, 2026, Jan 12, 2026. Based on that rhythm, the next report is likely around Oct 29, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 1.81% (largest 8.8%).
- Liquidity: about 1.88M shares (≈$311.71M) trade per day on average.
- 52-week position: $165.88 vs a range of $62.99–$191.05 (80% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Musa Tariq sold 116 shares on Sep 16, 2026.
- Latest filings: 10-Q Jul 30, 2026; 8-K Jul 30, 2026; 8-K Jun 18, 2026.
- Share count: 134.20M shares outstanding (Jul 24, 2026), +7.6% vs a year earlier — notable dilution.
- Listing: Nasdaq · industry: Services-Medical Laboratories.
GH market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 15, 2026 | 160.78 | 168.86 | 159.00 | 165.88 | 1.33M |
| Oct 14, 2026 | 159.89 | 166.16 | 159.00 | 162.99 | 1.28M |
| Oct 13, 2026 | 161.95 | 164.53 | 158.36 | 162.09 | 1.30M |
| Oct 12, 2026 | 168.26 | 168.69 | 158.46 | 162.79 | 1.56M |
| Oct 9, 2026 | 166.03 | 170.81 | 166.03 | 167.47 | 1.52M |
| Oct 8, 2026 | 166.24 | 167.28 | 161.61 | 165.56 | 1.60M |
| Oct 7, 2026 | 166.50 | 171.55 | 165.00 | 168.33 | 2.20M |
| Oct 6, 2026 | 188.00 | 191.05 | 170.05 | 170.69 | 3.39M |
| Oct 5, 2026 | 177.45 | 187.69 | 176.37 | 187.22 | 1.74M |
| Oct 2, 2026 | 173.32 | 179.17 | 172.00 | 177.80 | 1.65M |
| Oct 1, 2026 | 177.17 | 180.91 | 173.96 | 174.75 | 1.96M |
| Sep 30, 2026 | 177.75 | 180.34 | 175.33 | 178.36 | 1.58M |
| Sep 29, 2026 | 176.78 | 180.90 | 174.54 | 177.73 | 1.66M |
| Sep 28, 2026 | 174.85 | 180.05 | 174.69 | 177.33 | 1.32M |
| Sep 25, 2026 | 178.50 | 179.97 | 174.50 | 177.25 | 1.58M |
| Sep 24, 2026 | 174.05 | 181.79 | 173.50 | 176.45 | 2.57M |
| Sep 23, 2026 | 176.21 | 179.35 | 174.17 | 176.31 | 1.43M |
| Sep 22, 2026 | 172.40 | 179.43 | 170.50 | 177.16 | 2.23M |
| Sep 21, 2026 | 181.37 | 181.37 | 172.86 | 173.87 | 2.62M |
| Sep 18, 2026 | 183.00 | 183.50 | 175.62 | 179.38 | 3.08M |
About Guardant Health
Guardant Health (GH) is listed on the Nasdaq and classified by the SEC under “Services-Medical Laboratories”. Its business address is in PALO ALTO, CA. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1576280.
GH board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Alex M Ii Azar | Director | Sep 17, 2026 |
| Ian T Clark | Director | Aug 5, 2026 |
| Helmy Eltoukhy | Co-Chief Executive Officer | Aug 27, 2026 |
| Vijaya Gadde | Director | Jun 22, 2026 |
| Medina Manuel Hidalgo | Director | Sep 21, 2026 |
| Meghan V. Joyce | Director | Jun 22, 2026 |
| Steve E. Krognes | Director | Sep 17, 2026 |
| Roberto Mignone | Director | Sep 22, 2026 |
| Myrtle S Potter | Director | Jun 23, 2026 |
| Amirali Talasaz | Co-Chief Executive Officer | Aug 24, 2026 |
| Musa Tariq | Director | Sep 17, 2026 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| Michael Brian Bell | Chief Financial Officer | Jul 2, 2026 |
| Darya Chudova | Chief Technology Officer | Sep 17, 2026 |
| Craig Eagle | Chief Medical Officer | Apr 2, 2026 |
| Helmy Eltoukhy | Co-Chief Executive Officer | Aug 27, 2026 |
| Chris Freeman | Chief Commercial Officer | Aug 11, 2026 |
| Kumud Kalia | Chief Information Officer | Sep 14, 2026 |
| Terilyn J. Monroe | Chief People Officer | Aug 13, 2026 |
| John G. Saia | Chief Legal Officer | Aug 12, 2026 |
| Amirali Talasaz | Co-Chief Executive Officer | Aug 24, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 16, 2026 | Musa Tariq | Sale | 116 | $175.00 |
| Sep 16, 2026 | Steve E. Krognes | Sale | 1,103 | $174.46 |
| Sep 16, 2026 | Steve E. Krognes | Sale | 971 | $177.48 |
| Sep 16, 2026 | Steve E. Krognes | Sale | 1,300 | $176.34 |
| Sep 16, 2026 | Steve E. Krognes | Sale | 3,300 | $175.42 |
| Sep 16, 2026 | Alex M Ii Azar | Sale | 826 | $175.00 |
| Sep 15, 2026 | Darya Chudova | Sale | 7,738 | $178.00 |
| Sep 11, 2026 | Kumud Kalia | Sale | 4,000 | $158.05 |
| Aug 21, 2026 | Amirali Talasaz | Sale | 20,888 | $169.16 |
| Aug 21, 2026 | Amirali Talasaz | Sale | 9,023 | $168.20 |
| Aug 21, 2026 | Amirali Talasaz | Sale | 7,589 | $170.29 |
| Aug 17, 2026 | Musa Tariq | Sale | 116 | $156.45 |
| Aug 12, 2026 | Terilyn J. Monroe | Sale | 400 | $167.92 |
| Aug 12, 2026 | Terilyn J. Monroe | Sale | 13,248 | $166.11 |
| Aug 12, 2026 | Terilyn J. Monroe | Sale | 19,014 | $165.16 |
GH financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $982.02M | $-416.28M | -3.32 | $-184.76M |
| Dec 31, 2024 | $739.02M | $-436.37M | -3.56 | $-239.86M |
| Dec 31, 2023 | $563.95M | $-479.45M | -4.28 | $-324.98M |
| Dec 31, 2022 | — | $-654.59M | -6.41 | $-309.46M |
| Dec 31, 2021 | — | $-384.77M | -4.00 | $-209.02M |
Latest balance sheet: total assets $1.91B, total liabilities $2.14B, cash $1.05B (as of Jun 30, 2026).
GH earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Jul 30, 2026 | 8-K Item 2.02 (results) | $152.35 |
| May 7, 2026 | 8-K Item 2.02 (results) | $92.26 |
| Feb 19, 2026 | 8-K Item 2.02 (results) | $106.38 |
| Jan 12, 2026 | 8-K Item 2.02 (results) | $107.57 |
| Oct 29, 2025 | 8-K Item 2.02 (results) | $72.27 |
| Jul 30, 2025 | 8-K Item 2.02 (results) | $45.19 |
| Apr 30, 2025 | 8-K Item 2.02 (results) | $47.23 |
| Feb 20, 2025 | 8-K Item 2.02 (results) | $47.40 |
| Jan 13, 2025 | 8-K Item 2.02 (results) | $38.10 |
| Nov 6, 2024 | 8-K Item 2.02 (results) | $25.29 |
| Aug 7, 2024 | 8-K Item 2.02 (results) | — |
| May 9, 2024 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 15, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.