Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Masimo Corp (MASI) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Masimo Corp. Table 2 shows the detailed insider transactions. This company's CIK number is 937556.
Total stock buying since 2015: $6,561,526.
Total stock sales since 2015: $742,773,477.
Total stock option exercises since 2015: $128,959,729.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 3,200 | $468,499 | 42,053 | $7,007,718 | 83,381 | $1,480,300 |
| 2024 | 0 | $0 | 40,000 | $5,446,600 | 315,432 | $9,921,344 |
| 2023 | 6,365 | $1,002,506 | 0 | $0 | 5,740 | $0 |
| 2022 | 39,778 | $4,983,321 | 1,800 | $416,106 | 69,688 | $513,884 |
| 2021 | 500 | $107,200 | 285,464 | $83,149,179 | 43,083 | $1,061,364 |
| 2020 | 0 | $0 | 1,310,990 | $278,923,994 | 1,356,033 | $36,342,752 |
| 2019 | 0 | $0 | 428,293 | $62,832,037 | 456,353 | $13,528,874 |
| 2018 | 0 | $0 | 858,803 | $97,852,199 | 871,718 | $22,844,502 |
| 2017 | 0 | $0 | 1,237,056 | $110,522,579 | 955,640 | $27,668,299 |
| 2016 | 0 | $0 | 1,261,055 | $68,137,807 | 591,440 | $10,259,953 |
| 2015 | 0 | $0 | 707,422 | $28,485,258 | 529,362 | $5,338,457 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-08 | 3,200 | $468,499 | 0 | $0 | 0 | $0 |
| 2025-05 | 0 | $0 | 10,000 | $1,637,300 | 10,000 | $345,100 |
| 2025-04 | 0 | $0 | 0 | $0 | 11,716 | $0 |
| 2025-03 | 0 | $0 | 32,053 | $5,370,418 | 60,000 | $1,135,200 |
| 2025-01 | 0 | $0 | 0 | $0 | 1,665 | $0 |
| 2024-11 | 0 | $0 | 0 | $0 | 30,000 | $0 |
| 2024-08 | 0 | $0 | 0 | $0 | 231,748 | $8,769,344 |
| 2024-06 | 0 | $0 | 0 | $0 | 3,684 | $0 |
| 2024-05 | 0 | $0 | 0 | $0 | 10,000 | $230,400 |
| 2024-04 | 0 | $0 | 40,000 | $5,446,600 | 40,000 | $921,600 |
| 2023-05 | 6,365 | $1,002,506 | 0 | $0 | 5,740 | $0 |
| 2022-11 | 39,778 | $4,983,321 | 0 | $0 | 0 | $0 |
| 2022-05 | 0 | $0 | 0 | $0 | 3,688 | $513,884 |
| 2022-01 | 0 | $0 | 1,800 | $416,106 | 66,000 | $0 |
| 2021-12 | 0 | $0 | 3,000 | $826,410 | 0 | $0 |
| 2021-11 | 0 | $0 | 134,948 | $40,263,060 | 0 | $0 |
| 2021-10 | 0 | $0 | 68,752 | $19,987,174 | 0 | $0 |
| 2021-05 | 500 | $107,200 | 0 | $0 | 2,996 | $649,500 |
| 2021-04 | 0 | $0 | 2,087 | $498,793 | 2,087 | $181,464 |
| 2021-01 | 0 | $0 | 76,677 | $21,573,742 | 38,000 | $230,400 |
| 2020-12 | 0 | $0 | 238,250 | $63,504,791 | 238,250 | $6,653,529 |
| 2020-10 | 0 | $0 | 185,000 | $46,074,796 | 185,000 | $5,880,249 |
| 2020-07 | 0 | $0 | 1,250 | $293,750 | 1,250 | $38,762 |
| 2020-06 | 0 | $0 | 2,085 | $455,874 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-13 | Brennan Michelle (Director) | Buy | 100 | 155.25 | 15,525 |
| 2025-08-12 | Brennan Michelle (Director) | Buy | 100 | 150.35 | 15,035 |
| 2025-08-11 | Jellison William R (Director) | Buy | 3,000 | 145.98 | 437,939 |
| 2025-05-12 | Muhsin Bilal (Chief Operating Officer) | Sale | 10,000 | 163.73 | 1,637,300 |
| 2025-05-12 | Muhsin Bilal (Chief Operating Officer) | Option Ex | 10,000 | 34.51 | 345,100 |
| 2025-04-29 | Koffey Quentin | Option Ex | 1,790 | .00 | 0 |
| 2025-04-29 | Brennan Michelle (Director) | Option Ex | 1,790 | .00 | 0 |
| 2025-04-29 | Chapek Robert A (Director) | Option Ex | 1,790 | .00 | 0 |
| 2025-04-29 | Solomon Darlene J. S. (Director) | Option Ex | 1,790 | .00 | 0 |
| 2025-04-29 | Scannell Timothy J (Director) | Option Ex | 1,383 | .00 | 0 |
| 2025-04-29 | Lane Wendy E (Director) | Option Ex | 1,383 | .00 | 0 |
| 2025-04-29 | Reynolds Craig B (Director) | Option Ex | 1,790 | .00 | 0 |
| 2025-03-14 | Reynolds Craig B (Director) | Sale | 2,053 | 166.13 | 341,068 |
| 2025-03-10 | Muhsin Bilal (Chief Operating Officer) | Sale | 30,000 | 167.65 | 5,029,350 |
| 2025-03-10 | Muhsin Bilal (Chief Operating Officer) | Option Ex | 30,000 | 37.84 | 1,135,200 |
| 2025-03-01 | Tripodi Blair (COO, Consumer Division) | Option Ex | 15,000 | .00 | 0 |
| 2025-03-01 | Muhsin Bilal (Chief Operating Officer) | Option Ex | 15,000 | .00 | 0 |
| 2025-01-15 | Chapek Robert A (Director) | Option Ex | 1,665 | .00 | 0 |
| 2024-11-13 | Levy Tao (EVP, Bus Dev) | Option Ex | 30,000 | .00 | 0 |
| 2024-08-08 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 231,748 | 37.84 | 8,769,344 |
| 2024-06-26 | Koffey Quentin | Option Ex | 1,228 | .00 | 0 |
| 2024-06-26 | Brennan Michelle (Director) | Option Ex | 1,228 | .00 | 0 |
| 2024-06-26 | Reynolds Craig B (Director) | Option Ex | 1,228 | .00 | 0 |
| 2024-05-01 | Reynolds Craig B (Director) | Option Ex | 10,000 | 23.04 | 230,400 |
| 2024-04-26 | Reynolds Craig B (Director) | Sale | 40,000 | 136.16 | 5,446,600 |
| 2024-04-26 | Reynolds Craig B (Director) | Option Ex | 40,000 | 23.04 | 921,600 |
| 2023-05-26 | Cohen H Michael | Option Ex | 1,435 | .00 | 0 |
| 2023-05-26 | Mikkelson Adam | Option Ex | 1,435 | .00 | 0 |
| 2023-05-26 | Shimer Julie Ann | Option Ex | 1,435 | .00 | 0 |
| 2023-05-26 | Reynolds Craig B | Option Ex | 1,435 | .00 | 0 |
| 2023-05-25 | Kiani Joe E (CEO and Chairman of the Board) | Buy | 6,365 | 157.50 | 1,002,506 |
| 2022-11-14 | Kiani Joe E (CEO and Chairman of the Board) | Buy | 31,994 | 124.31 | 3,977,014 |
| 2022-11-11 | Kiani Joe E (CEO and Chairman of the Board) | Buy | 7,784 | 129.28 | 1,006,307 |
| 2022-05-26 | Cohen H Michael | Option Ex | 922 | 139.34 | 128,471 |
| 2022-05-26 | Mikkelson Adam | Option Ex | 922 | 139.34 | 128,471 |
| 2022-05-26 | Shimer Julie Ann | Option Ex | 922 | 139.34 | 128,471 |
| 2022-05-26 | Reynolds Craig B | Option Ex | 922 | 139.34 | 128,471 |
| 2022-01-24 | Mikkelson Adam | Sale | 600 | 214.80 | 128,880 |
| 2022-01-18 | Mikkelson Adam | Sale | 600 | 228.70 | 137,220 |
| 2022-01-10 | Mikkelson Adam | Sale | 600 | 250.01 | 150,006 |
| 2022-01-02 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Option Ex | 4,000 | .00 | 0 |
| 2022-01-02 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 40,000 | .00 | 0 |
| 2021-12-06 | Levy Tao (EVP, Bus Dev) | Sale | 3,000 | 275.47 | 826,410 |
| 2021-11-19 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 8,416 | 300.83 | 2,531,810 |
| 2021-11-18 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 20,399 | 300.05 | 6,120,760 |
| 2021-11-17 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 32,597 | 300.54 | 9,796,604 |
| 2021-11-16 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 2,440 | 300.01 | 732,036 |
| 2021-11-15 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 27,599 | 301.36 | 8,317,262 |
| 2021-11-12 | Young Micah W (EVP & Chief Financial Officer) | Sale | 3,700 | 298.00 | 1,102,600 |
| 2021-11-12 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 8,549 | 300.03 | 2,564,973 |
| 2021-11-04 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 4,173 | 290.16 | 1,210,854 |
| 2021-11-03 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 200 | 290.17 | 58,034 |
| 2021-11-02 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 23,446 | 291.45 | 6,833,453 |
| 2021-11-01 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 3,429 | 290.08 | 994,674 |
| 2021-10-29 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 18,967 | 290.97 | 5,518,771 |
| 2021-10-27 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 19,853 | 290.55 | 5,768,189 |
| 2021-10-26 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 29,932 | 290.67 | 8,700,214 |
| 2021-05-27 | Cohen H Michael | Option Ex | 749 | 216.79 | 162,375 |
| 2021-05-27 | Mikkelson Adam | Option Ex | 749 | 216.79 | 162,375 |
| 2021-05-27 | Shimer Julie Ann | Option Ex | 749 | 216.79 | 162,375 |
| 2021-05-27 | Reynolds Craig B | Option Ex | 749 | 216.79 | 162,375 |
| 2021-05-11 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Buy | 500 | 214.40 | 107,200 |
| 2021-04-08 | Young Micah W (EVP & Chief Financial Officer) | Sale | 2,087 | 239.00 | 498,793 |
| 2021-04-08 | Young Micah W (EVP & Chief Financial Officer) | Option Ex | 2,087 | 86.95 | 181,464 |
| 2021-01-12 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 3,403 | 280.32 | 953,942 |
| 2021-01-11 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 9,034 | 280.45 | 2,533,567 |
| 2021-01-11 | Reynolds Craig B | Sale | 10,000 | 279.74 | 2,797,410 |
| 2021-01-11 | Reynolds Craig B | Option Ex | 10,000 | 23.04 | 230,400 |
| 2021-01-08 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 52,698 | 281.93 | 14,856,989 |
| 2021-01-07 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 1,542 | 280.05 | 431,834 |
| 2021-01-02 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Option Ex | 2,000 | .00 | 0 |
| 2021-01-02 | Coleman Jon (Pres-WW OEM & Global Health) | Option Ex | 2,000 | .00 | 0 |
| 2021-01-02 | Sampath Anand (EVP, Ops & Clinical Research) | Option Ex | 2,000 | .00 | 0 |
| 2021-01-02 | Lee Yongsam (EVP, CIO) | Option Ex | 2,000 | .00 | 0 |
| 2021-01-02 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 20,000 | .00 | 0 |
| 2020-12-28 | Coleman Jon (Pres-WW OEM & Global Health) | Sale | 8,250 | 264.02 | 2,178,165 |
| 2020-12-28 | Coleman Jon (Pres-WW OEM & Global Health) | Option Ex | 8,250 | 31.01 | 255,832 |
| 2020-12-15 | Sampath Anand (EVP, Ops & Clinical Research) | Sale | 30,000 | 265.59 | 7,967,820 |
| 2020-12-15 | Sampath Anand (EVP, Ops & Clinical Research) | Option Ex | 30,000 | 26.39 | 791,700 |
| 2020-12-11 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 6,038 | 271.31 | 1,638,151 |
| 2020-12-11 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 6,038 | 28.03 | 169,245 |
| 2020-12-10 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 36,626 | 270.50 | 9,907,333 |
| 2020-12-10 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 36,626 | 28.03 | 1,026,626 |
| 2020-12-09 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 1,365 | 270.33 | 369,000 |
| 2020-12-09 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 1,365 | 28.03 | 38,260 |
| 2020-12-08 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 55,971 | 270.68 | 15,150,286 |
| 2020-12-08 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 55,971 | 28.03 | 1,568,867 |
| 2020-12-04 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 11,688 | 261.50 | 3,056,412 |
| 2020-12-04 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 11,688 | 28.03 | 327,614 |
| 2020-12-03 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 88,312 | 263.13 | 23,237,624 |
| 2020-12-03 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 88,312 | 28.03 | 2,475,385 |
| 2020-10-27 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 47,508 | 250.47 | 11,899,186 |
| 2020-10-27 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 47,508 | 28.03 | 1,331,649 |
| 2020-10-27 | Reynolds Craig B | Sale | 10,000 | 250.00 | 2,500,000 |
| 2020-10-27 | Reynolds Craig B | Option Ex | 10,000 | 23.04 | 230,400 |
| 2020-10-19 | Young Micah W (EVP & Chief Financial Officer) | Sale | 10,000 | 239.00 | 2,390,000 |
| 2020-10-19 | Young Micah W (EVP & Chief Financial Officer) | Option Ex | 10,000 | 84.97 | 849,700 |
| 2020-10-12 | Reynolds Craig B | Sale | 20,000 | 240.10 | 4,802,100 |
| 2020-10-12 | Reynolds Craig B | Option Ex | 20,000 | 23.04 | 460,800 |
| 2020-10-07 | Muhsin Bilal (Chief Operating Officer) | Sale | 25,000 | 251.00 | 6,275,000 |
| 2020-10-07 | Muhsin Bilal (Chief Operating Officer) | Option Ex | 25,000 | 34.51 | 862,750 |
| 2020-10-07 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Sale | 10,000 | 254.00 | 2,540,000 |
| 2020-10-07 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Option Ex | 10,000 | 29.52 | 295,200 |
| 2020-10-07 | Lee Yongsam (EVP, CIO) | Sale | 10,000 | 250.00 | 2,500,000 |
| 2020-10-07 | Lee Yongsam (EVP, CIO) | Option Ex | 10,000 | 37.84 | 378,400 |
| 2020-10-07 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 52,492 | 250.87 | 13,168,510 |
| 2020-10-07 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 52,492 | 28.03 | 1,471,350 |
| 2020-07-06 | Coleman Jon (Pres-WW Sales,Pro Svc,Med Affs) | Sale | 1,250 | 235.00 | 293,750 |
| 2020-07-06 | Coleman Jon (Pres-WW Sales,Pro Svc,Med Affs) | Option Ex | 1,250 | 31.01 | 38,762 |
| 2020-06-08 | Mikkelson Adam | Sale | 1,498 | 216.01 | 323,582 |
| 2020-06-04 | Cohen H Michael | Sale | 587 | 225.37 | 132,292 |
| 2020-05-29 | Cohen H Michael | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-05-29 | Mikkelson Adam | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-05-29 | Harkin Thomas | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-05-29 | Barker Steven | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-05-29 | Shimer Julie Ann | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-05-29 | Fitch Sanford | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-05-29 | Reynolds Craig B | Option Ex | 1,304 | 240.19 | 313,207 |
| 2020-04-30 | Fitch Sanford | Option Ex | 10,000 | 21.97 | 219,700 |
| 2020-04-22 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 11,336 | 200.27 | 2,270,249 |
| 2020-04-22 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 11,336 | 21.97 | 249,051 |
| 2020-04-17 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 111,468 | 200.70 | 22,371,739 |
| 2020-04-17 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 111,468 | 21.97 | 2,448,951 |
| 2020-04-16 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 105,318 | 204.13 | 21,498,352 |
| 2020-04-16 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 105,318 | 21.97 | 2,313,836 |
| 2020-04-15 | Young Micah W (EVP & Chief Financial Officer) | Sale | 3,534 | 200.01 | 706,828 |
| 2020-04-15 | Young Micah W (EVP & Chief Financial Officer) | Option Ex | 3,534 | 110.22 | 389,535 |
| 2020-04-15 | Coleman Jon (Pres-WW Sales,Pro Svc,Med Affs) | Sale | 4,000 | 197.50 | 790,000 |
| 2020-04-15 | Coleman Jon (Pres-WW Sales,Pro Svc,Med Affs) | Option Ex | 4,000 | 28.03 | 112,120 |
| 2020-04-15 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 83,086 | 196.89 | 16,358,968 |
| 2020-04-15 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 83,086 | 21.08 | 1,751,452 |
| 2020-04-14 | Van Ramshorst David J (SVP, Chief Accounting Officer) | Sale | 2,500 | 191.00 | 477,500 |
| 2020-04-14 | Van Ramshorst David J (SVP, Chief Accounting Officer) | Option Ex | 2,500 | 29.90 | 74,750 |
| 2020-04-14 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Sale | 10,000 | 191.00 | 1,910,050 |
| 2020-04-14 | Mcclenahan Thomas Samuel (EVP, GEN COUNSEL & CORP SEC) | Option Ex | 10,000 | 23.88 | 238,750 |
| 2020-04-14 | Coleman Jon (Pres-WW Sales,Pro Svc,Med Affs) | Sale | 2,000 | 190.00 | 380,000 |
| 2020-04-14 | Coleman Jon (Pres-WW Sales,Pro Svc,Med Affs) | Option Ex | 2,000 | 28.03 | 56,060 |
| 2020-04-14 | Barker Steven | Sale | 10,000 | 190.00 | 1,900,050 |
| 2020-04-14 | Barker Steven | Option Ex | 10,000 | 41.80 | 418,000 |
| 2020-04-14 | Lee Yongsam (EVP, CIO) | Sale | 10,000 | 185.01 | 1,850,110 |
| 2020-04-14 | Lee Yongsam (EVP, CIO) | Option Ex | 10,000 | 34.42 | 344,250 |
| 2020-04-14 | Kiani Joe E (CEO and Chairman of the Board) | Sale | 112,578 | 190.44 | 21,439,241 |
| 2020-04-14 | Kiani Joe E (CEO and Chairman of the Board) | Option Ex | 112,578 | 20.19 | 2,272,949 |
| 2020-04-14 | Reynolds Craig B | Sale | 9,752 | 184.00 | 1,794,368 |
| 2020-04-14 | Reynolds Craig B | Option Ex | 9,752 | 23.04 | 224,686 |
| 2020-04-13 | Sampath Anand (EVP, Ops & Clinical Research) | Sale | 19,796 | 180.00 | 3,563,280 |
| 2020-04-13 | Sampath Anand (EVP, Ops & Clinical Research) | Option Ex | 19,796 | 21.77 | 430,958 |
| 2020-04-13 | Lee Yongsam (EVP, CIO) | Sale | 10,000 | 180.00 | 1,800,000 |
| 2020-04-13 | Lee Yongsam (EVP, CIO) | Option Ex | 10,000 | 28.03 | 280,300 |
| 2020-04-13 | Reynolds Craig B | Sale | 248 | 184.00 | 45,632 |
Insider trading activities including stock purchases, stock sales, and option exercises of MASI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Masimo Corp (symbol MASI, CIK number 937556) see the Securities and Exchange Commission (SEC) website.