SEC Insider Transactions from Brennan Michelle.

Last updated: 2026-03-14 11:15 UTC | Total transactions: 17

Brennan Michelle bought Masimo Corp ($MASI) shares on the open market twice in the last year, for a total of $30,560. Her most recent purchase was on August 13, 2025. These buys rank 3,411th among 4,983 individual insiders, below the average purchase of $1.46 million across 3.29 transactions per insider. She made no open market sales in the 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
Nov. 5, 2025 CARDINAL HEALTH INC $CAH Brennan Michelle Director A Common Shares 1067 $0.00 8,086.0000 239,000,000 15.20% 0.00%
Aug. 12, 2025 MASIMO CORP $MASI Brennan Michelle Other P Common Stock 100 $150.35 7,218.0000 54,300,000 1.40% 0.00%
Aug. 13, 2025 MASIMO CORP $MASI Brennan Michelle Other P Common Stock 100 $155.25 7,318.0000 54,300,000 1.39% 0.00%
April 29, 2025 MASIMO CORP $MASI Brennan Michelle Other A Restricted Stock Units 766 $0.00 766.0000 54,200,000 9999.99% 0.00%
April 29, 2025 MASIMO CORP $MASI Brennan Michelle Other M Common Stock 1790 $0.00 7,118.0000 54,200,000 33.60% 0.00%
April 29, 2025 MASIMO CORP $MASI Brennan Michelle Other M Restricted Stock Units 1790 $0.00 0.0000 54,200,000 100.00% 0.00%
April 29, 2025 MASIMO CORP $MASI Brennan Michelle Other A Restricted Stock Units 1225 $0.00 1,225.0000 54,200,000 9999.99% 0.00%
Feb. 12, 2025 MASIMO CORP $MASI Brennan Michelle Interim CEO A Common Stock 8916 $0.00 10,144.0000 53,600,000 726.06% 0.02%
Feb. 12, 2025 MASIMO CORP $MASI Brennan Michelle Interim CEO F Common Stock 4816 $179.51 5,328.0000 53,600,000 47.48% 0.01%
Feb. 12, 2025 MASIMO CORP $MASI Brennan Michelle Interim CEO M Restricted Stock Units 8916 $0.00 0.0000 53,600,000 100.00% 0.02%
Nov. 11, 2024 MASIMO CORP $MASI Brennan Michelle Interim CEO A Restricted Stock Units 8916 $0.00 8,916.0000 53,500,000 9999.99% 0.02%
Nov. 6, 2024 CARDINAL HEALTH INC $CAH Brennan Michelle Director A Common Shares 1730 $0.00 7,019.0000 245,000,000 32.71% 0.00%
June 26, 2023 MASIMO CORP $MASI Brennan Michelle Director M Restricted Stock Units 1228 $0.00 0.0000 52,500,000 100.00% 0.00%
Sept. 19, 2024 MASIMO CORP $MASI Brennan Michelle Director A Restricted Stock Units 1790 $0.00 1,790.0000 53,200,000 9999.99% 0.00%
June 26, 2024 MASIMO CORP $MASI Brennan Michelle Director M Common Stock 1228 $0.00 1,228.0000 53,100,000 9999.99% 0.00%
Nov. 15, 2023 CARDINAL HEALTH INC $CAH Brennan Michelle Director A Common Shares 1965 $0.00 5,289.0000 262,000,000 59.12% 0.00%
June 26, 2023 MASIMO CORP $MASI Brennan Michelle Director A Restricted Stock Units 1228 $0.00 1,228.0000 52,500,000 9999.99% 0.00%