Michael Brian Bell
CIK: 0001702824
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Guardant Health, Inc.
Discretionary Trading P&L
Holdings
Transaction History (79 total)
- Oct 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct1.9K shares- - Oct 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct3.3K shares- - Oct 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct2.1K shares- - Oct 1, 2026GH
Guardant Health, Inc.
Tax Payment(F)Direct3.9K shares at avg. $174.75$684K - Jul 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct3.3K shares- - Jul 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct1.9K shares- - Jul 1, 2026GH
Guardant Health, Inc.
Tax Payment(F)Direct3.9K shares at avg. $170.77$668K - Jul 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct2.1K shares- - Jun 15, 2026GH
Guardant Health, Inc.
Exercise(M)Direct2K shares- - Jun 15, 2026GH
Guardant Health, Inc.
Tax Payment(F)Direct1.1K shares at avg. $129.82$142K - Jun 5, 2026GH
Guardant Health, Inc.
Sale(S)Direct2K shares at avg. $128.62$257K - Apr 1, 2026GH
Guardant Health, Inc.
Tax Payment(F)Direct6.9K shares at avg. $91.15$626K - Apr 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct3.3K shares- - Apr 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct7.4K shares- - Apr 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct2.1K shares- - Mar 16, 2026GH
Guardant Health, Inc.
Sale(S)Direct3K shares at avg. $87.04$261K - Mar 15, 2026GH
Guardant Health, Inc.
Exercise(M)Direct2K shares- - Mar 15, 2026GH
Guardant Health, Inc.
Tax Payment(F)Direct7.4K shares at avg. $85.49$634K - Mar 15, 2026GH
Guardant Health, Inc.
Exercise(M)Direct1.2K shares- - Mar 15, 2026GH
Guardant Health, Inc.
Exercise(M)Direct10.5K shares- - Mar 11, 2026GH
Guardant Health, Inc.
Award(A)DirectRestricted Stock Units
26.6K shares- - Jan 1, 2026GH
Guardant Health, Inc.
Tax Payment(F)Direct12.5K shares at avg. $102.14$1.3M - Jan 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct2.1K shares- - Jan 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct7.1K shares- - Jan 1, 2026GH
Guardant Health, Inc.
Exercise(M)Direct3.3K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 1,871 | - | $0 | Direct |
| Oct 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 3,324 | - | $0 | Direct |
| Oct 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 2,085 | - | $0 | Direct |
| Oct 1, 2026 | GH Guardant Health, Inc. | Tax Payment(F) | 3,914 | $174.75 | $683,972 | Direct |
| Jul 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 3,324 | - | $0 | Direct |
| Jul 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 1,870 | - | $0 | Direct |
| Jul 1, 2026 | GH Guardant Health, Inc. | Tax Payment(F) | 3,914 | $170.77 | $668,394 | Direct |
| Jul 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 2,084 | - | $0 | Direct |
| Jun 15, 2026 | GH Guardant Health, Inc. | Exercise(M) | 2,039 | - | $0 | Direct |
| Jun 15, 2026 | GH Guardant Health, Inc. | Tax Payment(F) | 1,096 | $129.82 | $142,283 | Direct |
| Jun 5, 2026 | GH Guardant Health, Inc. | Sale(S) | 2,000 | $128.62 | $257,241 | Direct |
| Apr 1, 2026 | GH Guardant Health, Inc. | Tax Payment(F) | 6,869 | $91.15 | $626,109 | Direct |
| Apr 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 3,324 | - | $0 | Direct |
| Apr 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 7,369 | - | $0 | Direct |
| Apr 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 2,084 | - | $0 | Direct |
| Mar 16, 2026 | GH Guardant Health, Inc. | Sale(S) | 3,000 | $87.04 | $261,111 | Direct |
| Mar 15, 2026 | GH Guardant Health, Inc. | Exercise(M) | 2,039 | - | $0 | Direct |
| Mar 15, 2026 | GH Guardant Health, Inc. | Tax Payment(F) | 7,413 | $85.49 | $633,737 | Direct |
| Mar 15, 2026 | GH Guardant Health, Inc. | Exercise(M) | 1,233 | - | $0 | Direct |
| Mar 15, 2026 | GH Guardant Health, Inc. | Exercise(M) | 10,518 | - | $0 | Direct |
| Mar 11, 2026 | GH Guardant Health, Inc. | Award(A) Restricted Stock Units | 26,582 | - | - | Direct |
| Jan 1, 2026 | GH Guardant Health, Inc. | Tax Payment(F) | 12,479 | $102.14 | $1,274,605 | Direct |
| Jan 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 2,084 | - | $0 | Direct |
| Jan 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 7,110 | - | $0 | Direct |
| Jan 1, 2026 | GH Guardant Health, Inc. | Exercise(M) | 3,324 | - | $0 | Direct |
1-25 of 79 transactions
About Bell Michael Brian
Bell Michael Brian (SEC CIK 0001702824) files insider reports with the SEC as Chief Financial Officer of Guardant Health, Inc. (GH).
Signal8 holds 25 ownership filings by Bell Michael Brian, all Form 4s, filed between Sep 16, 2024 and Oct 2, 2026. Those filings report 79 transactions, from Sep 15, 2024 to Oct 1, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Bell Michael Brian's filings is in PALO ALTO, CA.
Recent filings by Bell Michael Brian
- Oct 1, 2026: Option exercises of GH shares (3 lines, Form 4, code M).
- Oct 1, 2026: Tax withholding of GH shares (Form 4, code F).
- Jul 1, 2026: Option exercises of GH shares (2 lines, Form 4, code M).
- Jul 1, 2026: Tax withholding of GH shares (Form 4, code F).
- Jul 1, 2026: Option exercise of GH shares (Form 4, code M).
Other insiders filing for Guardant Health, Inc. (GH)
- MIGNONE ROBERTO, Director
- Hidalgo Medina Manuel, Director
- Tariq Musa, Director
- Azar Alex M II, Director
- Saia John G., Chief Legal Officer
- Monroe Terilyn J., Chief People Officer