Masimo's top three insider shareholders as of April 22, 2026 are Capital Management Lp Politan (Other, 4.59Mn shares), Joe E Kiani (Ceo And Chairman Of The Board, 603.92K shares), Joe E Kiani (Ceo And Chairman Of The Board, 46.82K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Capital Management Lp Politan | - | 0 | 4,589,648 | 29 Aug, 2025 |
| Joe E Kiani | Ceo And Chairman Of The Board | 603,924 | 0 | 12 Aug, 2024 |
| Joe E Kiani | Ceo And Chairman Of The Board | 0 | 46,818 | 19 Dec, 2022 |
| Joe E Kiani | Ceo And Chairman Of The Board | 0 | 42,735 | 17 Mar, 2023 |
| Anand Sampath | Evp, Ops Clinical Research | 40,909 | 0 | 30 Jan, 2026 |
| Thomas Samuel Mcclenahan | Evp, Gen Counsel Corp Sec | 36,747 | 0 | 01 Mar, 2024 |
| Tao Levy | Evp, Bus Dev | 26,810 | 0 | 15 Nov, 2024 |
| Micah W Young | Evp Chief Financial Officer | 25,656 | 0 | 16 Mar, 2026 |
| Bilal Muhsin | Chief Operating Officer | 24,172 | 0 | 14 May, 2025 |
| Tao Levy | Evp, Bus Dev | 23,239 | 0 | 07 Mar, 2023 |
| Craig B Reynolds | - | 18,371 | 0 | 01 May, 2025 |
| Blair Tripodi | Coo, Consumer Division | 13,818 | 0 | 25 Sep, 2025 |
| Catherine M. Szyman | Ceo | 7,605 | 0 | 16 Mar, 2026 |
| Michelle Brennan | Interim Ceo | 7,318 | 0 | 14 Aug, 2025 |
| William R Jellison | - | 4,790 | 0 | 12 Aug, 2025 |
| Julie Ann Shimer | - | 4,410 | 0 | 31 May, 2023 |
| Adam Mikkelson | - | 4,108 | 0 | 31 May, 2023 |
| H Michael Cohen | - | 3,823 | 0 | 31 May, 2023 |
| Robert A Chapek | - | 3,455 | 0 | 01 May, 2025 |
| Omar Ahmed | Ctio Evp Of Engineering | 3,268 | 0 | 17 Nov, 2025 |
| Darlene J. S. Solomon | - | 1,790 | 0 | 01 May, 2025 |
| Wendy E Lane | - | 1,383 | 0 | 01 May, 2025 |
| Timothy J Scannell | - | 1,383 | 0 | 01 May, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Mar, 2026 | Micah W Young | Common Stock | A | 873 | $0.00 | 26,127 | D | M |
| 11 Mar, 2026 | Catherine M. Szyman | Common Stock | A | 2,101 | $0.00 | 8,674 | D | M |
| 11 Mar, 2026 | Micah W Young | Common Stock | D | 471 | $175.47 | 25,656 | D | F |
| 11 Mar, 2026 | Catherine M. Szyman | Common Stock | D | 1,069 | $175.47 | 7,605 | D | F |
| 11 Mar, 2026 | Catherine M. Szyman | Restricted Stock Units | D | 2,101 | $0.00 | 6,306 | D | M |
| 11 Mar, 2026 | Micah W Young | Restricted Stock Units | D | 873 | $0.00 | 2,622 | D | M |
| 11 Mar, 2026 | Capital Management Lp Politan | Forward Sale Contract (obligation to sell) | A | 142,681 | - | 142,681 | I | J |
| 12 Mar, 2026 | Capital Management Lp Politan | Forward Sale Contract (obligation to sell) | A | 130,869 | - | 130,869 | I | J |
| 06 Mar, 2026 | Tim Benner | Restricted Stock Units | A | 6,128 | $0.00 | 6,128 | D | A |
| 06 Mar, 2026 | Micah W Young | Restricted Stock Units | A | 17,671 | $0.00 | 17,671 | D | A |
| 06 Mar, 2026 | Anand Sampath | Restricted Stock Units | A | 6,840 | $0.00 | 6,840 | D | A |
| 06 Mar, 2026 | Catherine M. Szyman | Restricted Stock Units | A | 39,904 | $0.00 | 39,904 | D | A |
| 06 Mar, 2026 | Greg Allen Meehan | Restricted Stock Units | A | 8,550 | $0.00 | 8,550 | D | A |
| 06 Mar, 2026 | Elisabeth A Hellmann | Restricted Stock Units | A | 5,985 | $0.00 | 5,985 | D | A |
| 06 Mar, 2026 | Charles Dadswell | Restricted Stock Units | A | 10,261 | $0.00 | 10,261 | D | A |
| 27 Feb, 2026 | Micah W Young | Common Stock | A | 15,000 | $0.00 | 33,347 | D | A |
| 27 Feb, 2026 | Micah W Young | Common Stock | D | 8,093 | $175.35 | 25,254 | D | F |
| 27 Feb, 2026 | Micah W Young | Restricted Stock Units | D | 15,000 | $0.00 | 0 | D | M |
| 26 Feb, 2026 | Micah W Young | Common Stock | A | 2,034 | $0.00 | 19,470 | D | A |
| 26 Feb, 2026 | Micah W Young | Common Stock | D | 1,123 | $175.22 | 18,347 | D | F |