SEC Insider Transactions from Bell Michael Brian.

Last updated: 2026-04-02 23:06 UTC | Total transactions: 112

Michael Brian Bell, CFO of Guardant Health Inc ($GH), sold $8.3 million in company shares across 12 open market transactions over the past year. His latest sale took place on December 5, 2025. These sales rank 1,311th among 11,678 insiders, below the average of $8.6 million and 6.4 transactions per seller. Bell made no open market purchases in this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2084 $0.00 45,685.0000 131,170,441 4.78% 0.00%
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 7369 $0.00 14,963.0000 131,170,441 33.00% 0.01%
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 3324 $0.00 19,944.0000 131,170,441 14.29% 0.00%
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2084 $0.00 4,169.0000 131,170,441 33.33% 0.00%
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 6869 $91.15 49,509.0000 131,170,441 12.18% 0.01%
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 7369 $0.00 56,378.0000 131,170,441 15.04% 0.01%
April 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 3324 $0.00 49,009.0000 131,170,441 7.28% 0.00%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 41,457.0000 131,170,441 3.07% 0.00%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 2,039.0000 131,170,441 50.00% 0.00%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Performance-Based Restricted Stock Units 10518 $0.00 0.0000 131,170,441 100.00% 0.01%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 0.0000 131,170,441 100.00% 0.00%
March 16, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 3000 $87.04 43,601.0000 131,170,441 6.44% 0.00%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 7413 $85.49 46,601.0000 131,170,441 13.72% 0.01%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 54,014.0000 131,170,441 3.92% 0.00%
March 15, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 10518 $0.00 51,975.0000 131,170,441 25.37% 0.01%
March 11, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer A Restricted Stock Units 26582 $0.00 26,582.0000 131,170,441 9999.99% 0.02%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 3324 $0.00 43,509.0000 126,041,089 8.27% 0.00%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 10520 $0.00 40,185.0000 126,041,089 35.46% 0.01%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 7110 $0.00 50,619.0000 126,041,089 16.34% 0.01%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2084 $0.00 6,253.0000 126,041,089 25.00% 0.00%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Performance-Based Restricted Stock Units 7110 $0.00 17,630.0000 126,041,089 28.74% 0.01%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 3324 $0.00 23,268.0000 126,041,089 12.50% 0.00%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Performance-Based Restricted Stock Units 10520 $0.00 10,520.0000 126,041,089 50.00% 0.01%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 12479 $102.14 40,224.0000 126,041,089 23.68% 0.01%
Jan. 1, 2026 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2084 $0.00 52,703.0000 126,041,089 4.12% 0.00%
Dec. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 29,285.0000 126,041,089 4.40% 0.00%
Dec. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 31,324.0000 126,041,089 6.96% 0.00%
Dec. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1659 $102.67 29,665.0000 126,041,089 5.30% 0.00%
Dec. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 1,233.0000 126,041,089 50.00% 0.00%
Dec. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 4,078.0000 126,041,089 33.33% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 3267 $101.46 48,860.0000 126,041,089 6.27% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 5568 $106.68 52,127.0000 126,041,089 9.65% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 250 $105.82 57,695.0000 126,041,089 0.43% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 11978 $103.96 57,945.0000 126,041,089 17.13% 0.01%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 7567 $103.26 69,923.0000 126,041,089 9.77% 0.01%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 22891 $102.11 77,490.0000 126,041,089 22.80% 0.02%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 8033 $101.42 100,381.0000 126,041,089 7.41% 0.01%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 26905 $28.37 108,414.0000 126,041,089 33.01% 0.02%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 29382 $32.86 81,509.0000 126,041,089 56.37% 0.02%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Stock Option (Right to Buy) 29382 $0.00 7,137.0000 126,041,089 80.46% 0.02%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 3284 $106.70 29,242.0000 126,041,089 10.10% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 5027 $103.96 32,526.0000 126,041,089 13.39% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 2533 $103.24 37,553.0000 126,041,089 6.32% 0.00%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 8774 $102.11 40,086.0000 126,041,089 17.96% 0.01%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Stock Option (Right to Buy) 26905 $0.00 10,421.0000 126,041,089 72.08% 0.02%
Dec. 5, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer S Common Stock 1190 $107.26 28,052.0000 126,041,089 4.07% 0.00%
Oct. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 7695 $62.65 52,127.0000 123,421,441 12.86% 0.01%
Oct. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2084 $0.00 8,337.0000 123,421,441 20.00% 0.00%
Oct. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 13097 $0.00 26,592.0000 123,421,441 33.00% 0.01%
Oct. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2084 $0.00 46,725.0000 123,421,441 4.67% 0.00%
Oct. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 13097 $0.00 59,822.0000 123,421,441 28.03% 0.01%
Sept. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 46,300.0000 123,421,441 4.61% 0.00%
Sept. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 44,261.0000 123,421,441 2.87% 0.00%
Sept. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1659 $54.79 44,641.0000 123,421,441 3.58% 0.00%
Sept. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 2,466.0000 123,421,441 33.33% 0.00%
Sept. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 6,117.0000 123,421,441 25.00% 0.00%
July 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1057 $50.71 43,028.0000 123,421,441 2.40% 0.00%
July 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2084 $0.00 10,421.0000 123,421,441 16.67% 0.00%
July 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2084 $0.00 44,085.0000 123,421,441 4.96% 0.00%
June 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1659 $49.29 42,001.0000 123,421,441 3.80% 0.00%
June 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 3,699.0000 123,421,441 25.00% 0.00%
June 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 8,156.0000 123,421,441 20.00% 0.00%
June 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 43,660.0000 123,421,441 4.90% 0.00%
June 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 41,621.0000 123,421,441 3.05% 0.00%
April 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2084 $0.00 12,505.0000 123,421,441 14.28% 0.00%
April 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2084 $0.00 41,445.0000 123,421,441 5.29% 0.00%
April 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1057 $42.47 40,388.0000 123,421,441 2.55% 0.00%
March 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 10,195.0000 123,421,441 16.67% 0.00%
March 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 41,020.0000 123,421,441 5.23% 0.00%
March 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1659 $42.89 39,361.0000 123,421,441 4.04% 0.00%
March 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 4,932.0000 123,421,441 20.00% 0.00%
March 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 38,981.0000 123,421,441 3.27% 0.00%
March 12, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer A Stock Option (Right to Buy) 33498 $0.00 33,498.0000 123,421,441 9999.99% 0.03%
March 12, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer A Restricted Stock Units 22332 $0.00 22,332.0000 123,421,441 9999.99% 0.02%
March 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Performance-Based Restricted Stock Units 7108 $0.00 35,548.0000 123,421,441 16.66% 0.01%
March 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 7108 $0.00 40,285.0000 123,421,441 21.42% 0.01%
March 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 2537 $42.55 37,748.0000 123,421,441 6.30% 0.00%
Feb. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 2361 $46.98 33,177.0000 0 6.64% 0.00%
Feb. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 6617 $0.00 35,538.0000 0 22.88% 0.00%
Feb. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Performance-Based Restricted Stock Units 6617 $0.00 0.0000 0 100.00% 0.00%
Jan. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1305 $37.50 28,921.0000 0 4.32% 0.00%
Jan. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 3309 $0.00 0.0000 0 100.00% 0.00%
Jan. 15, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 3309 $0.00 30,226.0000 0 12.29% 0.00%
Jan. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 855 $30.55 26,917.0000 0 3.08% 0.00%
Jan. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2084 $0.00 14,589.0000 0 12.50% 0.00%
Jan. 1, 2025 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2084 $0.00 27,772.0000 0 8.11% 0.00%
Dec. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1659 $34.76 25,688.0000 0 6.07% 0.00%
Dec. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 25,308.0000 0 5.12% 0.00%
Dec. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 27,347.0000 0 8.06% 0.00%
Dec. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 6,165.0000 0 16.67% 0.00%
Dec. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 12,234.0000 0 14.29% 0.00%
Nov. 8, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer A Restricted Stock Units 39689 $0.00 39,689.0000 0 9999.99% 0.00%
Nov. 8, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer A Stock Option (Right to Buy) 59534 $0.00 59,534.0000 0 9999.99% 0.00%
Oct. 1, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 4162 $22.12 24,075.0000 0 14.74% 0.00%
Oct. 1, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 8211 $0.00 28,237.0000 0 41.00% 0.00%
Oct. 1, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 8211 $0.00 16,673.0000 0 33.00% 0.00%
Sept. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 7,398.0000 0 14.29% 0.00%
Sept. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 19,646.0000 0 6.70% 0.00%
Sept. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 2039 $0.00 21,685.0000 0 10.38% 0.00%
Sept. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 1659 $26.79 20,026.0000 0 7.65% 0.00%
Sept. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 2039 $0.00 14,273.0000 0 12.50% 0.00%
June 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 8,631.0000 0 12.50% 0.00%
June 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 13,686.0000 0 9.90% 0.00%
June 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 8034 $0.00 21,720.0000 0 58.70% 0.00%
June 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 3307 $30.21 18,413.0000 0 15.23% 0.00%
June 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 8034 $0.00 16,312.0000 0 33.00% 0.00%
March 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F Common Stock 429 $17.74 12,453.0000 0 3.33% 0.00%
March 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Common Stock 1233 $0.00 12,882.0000 0 10.58% 0.00%
March 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M Restricted Stock Units 1233 $0.00 9,864.0000 0 11.11% 0.00%
Jan. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M COMMON STOCK 3308 $0.00 13,005.0000 0 34.11% 0.00%
Jan. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer F COMMON STOCK 1356 $24.20 11,649.0000 0 10.43% 0.00%
Jan. 15, 2024 Guardant Health, Inc. $GH Bell Michael Brian Chief Financial Officer M RESTRICTED STOCK UNITS 3308 $0.00 3,309.0000 0 49.99% 0.00%