← United States · Coverage record
US · SEC FORM 4
Guardant Health, Inc.
GH · Nasdaq · CIK 0001576280 · Healthcare · Diagnostics & Research
INSIDER SIGNAL
1 qualifying P purchase group
in the current 180-day scoring window
209 Form 4 transaction lines observed in the same window
77 sales · 131 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 7 additional owner(s) remain in Form 4 evidence.
Purchase breadth & concentration
Roles in the peak window: Chief Information Officer. Concentration uses priced qualifying P lines only and does not change the saved score.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-06-15 · Kalia Kumud.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 11,915,002
- Previous report
- 11,018,331
- Avg daily volume
- 1,920,986
- Days to cover
- 6.2
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-15 | Kalia Kumud | Purchase (P) | Common Stock | 600 | USD 130.76 | USD 78,456 | SEC filing ↗ |
| 2024-03-18 | Kalia Kumud | Purchase (P) | Common Stock | 2,187 | USD 17.82 | USD 38,972 | SEC filing ↗ |
| 2023-06-09 | Kalia Kumud | Purchase (P) | COMMON STOCK | 2,981 | USD 32.71 | USD 97,494 | SEC filing ↗ |
| 2023-03-15 | Eltoukhy Helmy | Purchase (P) | COMMON STOCK | 8,600 | USD 26.15 | USD 224,890 | SEC filing ↗ |
| 2023-03-14 | Eltoukhy Helmy | Purchase (P) | COMMON STOCK | 84,452 | USD 26.33 | USD 2,223,621 | SEC filing ↗ |
| 2023-03-14 | Talasaz AmirAli | Purchase (P) | COMMON STOCK | 12,750 | USD 26.40 | USD 336,600 | SEC filing ↗ |
| 2023-03-13 | Talasaz AmirAli | Purchase (P) | COMMON STOCK | 60,000 | USD 25.66 | USD 1,539,366 | SEC filing ↗ |
| 2021-11-23 | Talasaz AmirAli | Purchase (P) | COMMON STOCK | 54,500 | USD 94.33 | USD 5,141,241 | SEC filing ↗ |
| 2021-11-23 | Eltoukhy Helmy | Purchase (P) | COMMON STOCK | 54,500 | USD 94.35 | USD 5,142,231 | SEC filing ↗ |
| 2021-11-19 | Talasaz AmirAli | Purchase (P) | COMMON STOCK | 50,000 | USD 98.06 | USD 4,902,788 | SEC filing ↗ |
| 2021-11-19 | Eltoukhy Helmy | Purchase (P) | COMMON STOCK | 50,000 | USD 98.11 | USD 4,905,548 | SEC filing ↗ |
Form 4 evidence
446 transaction lines in the latest 365-day window; 1,673 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-14 | Azar Alex M II | Sale (S) | Common Stock | 69 | USD 159.89 | USD 11,032 | SEC filing ↗ |
| 2026-10-12 | Azar Alex M II | Option exercise / conversion (M) | Common Stock | 137 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Talasaz AmirAli | Option exercise / conversion (M) | Common Stock | 33,713 | USD 0.00 | USD 0 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-14 | Azar Alex M II | Sale (S) | Common Stock | 69 | USD 159.89 | USD 11,032 | SEC filing ↗ |
| 2026-10-12 | Azar Alex M II | Option exercise / conversion (M) | Common Stock | 137 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Talasaz AmirAli | Option exercise / conversion (M) | Common Stock | 33,713 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Talasaz AmirAli | Tax withholding (F) | Common Stock | 17,087 | USD 174.75 | USD 2,985,953 | SEC filing ↗ |
| 2026-10-01 | Saia John G. | Option exercise / conversion (M) | Common Stock | 7,063 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Saia John G. | Tax withholding (F) | Common Stock | 3,706 | USD 174.75 | USD 647,624 | SEC filing ↗ |
| 2026-10-01 | Monroe Terilyn J. | Option exercise / conversion (M) | Common Stock | 4,019 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Monroe Terilyn J. | Tax withholding (F) | Common Stock | 2,098 | USD 174.75 | USD 366,626 | SEC filing ↗ |
| 2026-10-01 | Kalia Kumud | Option exercise / conversion (M) | Common Stock | 6,046 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Kalia Kumud | Tax withholding (F) | Common Stock | 3,067 | USD 174.75 | USD 535,958 | SEC filing ↗ |
| 2026-10-01 | Freeman Chris | Option exercise / conversion (M) | Common Stock | 7,416 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Freeman Chris | Tax withholding (F) | Common Stock | 3,143 | USD 174.75 | USD 549,239 | SEC filing ↗ |
| 2026-10-01 | Eltoukhy Helmy | Option exercise / conversion (M) | Common Stock | 33,713 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Eltoukhy Helmy | Tax withholding (F) | Common Stock | 17,087 | USD 174.75 | USD 2,985,953 | SEC filing ↗ |
| 2026-10-01 | Chudova Darya | Option exercise / conversion (M) | Common Stock | 8,033 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Chudova Darya | Tax withholding (F) | Common Stock | 4,320 | USD 174.75 | USD 754,920 | SEC filing ↗ |
| 2026-10-01 | Bell Michael Brian | Option exercise / conversion (M) | Common Stock | 7,280 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-10-01 | Bell Michael Brian | Tax withholding (F) | Common Stock | 3,914 | USD 174.75 | USD 683,972 | SEC filing ↗ |
| 2026-09-30 | Talasaz AmirAli | Option exercise / conversion (M) | Common Stock | 2,817 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-30 | Talasaz AmirAli | Tax withholding (F) | Common Stock | 1,428 | USD 178.36 | USD 254,698 | SEC filing ↗ |
| 2026-09-30 | Eltoukhy Helmy | Option exercise / conversion (M) | Common Stock | 2,817 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-30 | Eltoukhy Helmy | Tax withholding (F) | Common Stock | 1,428 | USD 178.36 | USD 254,698 | SEC filing ↗ |
| 2026-09-21 | MIGNONE ROBERTO | Option exercise / conversion (M) | Common Stock | 264 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-17 | Hidalgo Medina Manuel | Option exercise / conversion (M) | Common Stock | 232 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-16 | Tariq Musa | Sale (S) | Common Stock | 116 | USD 175.00 | USD 20,300 | SEC filing ↗ |
| 2026-09-16 | Krognes Steve E. | Sale (S) | Common Stock | 6,674 | USD 175.74 | USD 1,172,890 | SEC filing ↗ |
| 2026-09-16 | Azar Alex M II | Sale (S) | Common Stock | 826 | USD 175.00 | USD 144,550 | SEC filing ↗ |
| 2026-09-15 | Tariq Musa | Option exercise / conversion (M) | Common Stock | 249 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-09-15 | Chudova Darya | Sale (S) | Common Stock | 7,738 | USD 178.00 | USD 1,377,364 | SEC filing ↗ |
| 2026-09-12 | Azar Alex M II | Option exercise / conversion (M) | Common Stock | 1,651 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | GH |
| CIK | 0001576280 |
| Sector | Healthcare |
| Industry | Diagnostics & Research Yahoo Finance |
| SEC SIC | 8071 Services-Medical Laboratories |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 1,673 transaction lines from 2020-01-03 to 2026-10-14 28 P purchase lines · 636 S sale lines · 1,009 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.