| 2025-08-13 | Brennan Michelle | Director, Chairman of the Board | Buy | 200 | $152.80 | $30,560.00 | +1.4% | → |
| 2025-08-11 | Jellison William R | Director | Buy | 3,000 | $145.98 | $437,940.00 | +167.6% | → |
| 2025-07-01 | MASIMO CORP | - | Sale+OE | 821,327 | $2.25 | $1,847,985.75 | -100% | → |
| 2025-05-12 | Muhsin Bilal | Chief Operating Officer | Sale+OE | 10,000 | $163.28 | $1,632,781.24 | -11.2% | → |
| 2025-03-14 | REYNOLDS CRAIG B | Director | Sell | 2,053 | $166.13 | $341,067.97 | -11.0% | → |
| 2025-03-10 | Muhsin Bilal | Chief Operating Officer | Sale+OE | 30,000 | $167.49 | $5,024,585.10 | -9.3% | → |
| 2024-04-26 | REYNOLDS CRAIG B | Director | Sale+OE | 40,000 | $136.17 | $5,446,616.00 | -84.4% | → |
| 2023-05-25 | KIANI JOE E | CEO and Chairman of the Board | Buy | 6,365 | $157.16 | $1,000,342.47 | +0.6% | → |
| 2022-12-15 | KIANI JOE E | CEO and Chairman of the Board | Buy | 7,040 | $144.79 | $1,019,352.43 | +4.2% | → |
| 2022-11-14 | KIANI JOE E | CEO and Chairman of the Board | Buy | 31,994 | $123.99 | $3,967,009.52 | +45.6% | → |
| 2022-11-11 | KIANI JOE E | CEO and Chairman of the Board | Buy | 7,784 | $129.27 | $1,006,254.54 | +64.6% | → |
| 2022-01-24 | Mikkelson Adam | - | Sell | 600 | $214.80 | $128,880.00 | -25.5% | → |
| 2022-01-18 | Mikkelson Adam | - | Sell | 600 | $228.70 | $137,220.00 | -20.3% | → |
| 2022-01-10 | Mikkelson Adam | - | Sell | 600 | $250.01 | $150,006.00 | -16.9% | → |
| 2021-12-06 | Levy Tao | EVP, Bus Dev | Sell | 3,000 | $275.47 | $826,410.00 | -20.6% | → |
| 2021-11-19 | KIANI JOE E | CEO and Chairman of the Board | Sell | 61,412 | $300.42 | $18,449,182.28 | -3.8% | → |
| 2021-11-16 | KIANI JOE E | CEO and Chairman of the Board | Sell | 38,588 | $300.98 | $11,614,271.50 | -2.2% | → |
| 2021-11-12 | Young Micah W | EVP & Chief Financial Officer | Sell | 3,700 | $298.00 | $1,102,600.00 | -25.4% | → |
| 2021-11-04 | KIANI JOE E | CEO and Chairman of the Board | Sell | 4,373 | $290.16 | $1,268,888.69 | -0.4% | → |
| 2021-11-02 | KIANI JOE E | CEO and Chairman of the Board | Sell | 45,842 | $291.15 | $13,346,917.39 | -6.7% | → |
| 2021-10-27 | KIANI JOE E | CEO and Chairman of the Board | Sell | 19,853 | $290.55 | $5,768,191.87 | -25.5% | → |