MASIMO CORP (MASI) Stock Ownership and Short Interest
USA - NASDAQ:MASI - US5747951003 - Common Stock
150.53 USD
-3.19 (-2.08%)
150.53 USD
0 (0%)
| Shares Outstanding | 54.32M |
| Float | 51.07M |
| Float Short Interest Percentage | 7.28% |
| Owners (insider) | 0.18% |
| Owners (institutional) | 107.26% |
| Owners (insider) change | 2% |
| Owners (institutional) change | 0% |
Insider Transactions
Top Institutional Holders
Insider Owners
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Sep 23, 2025 | Tripodi Blair | Option Excercise | 15000 | 142.13 | $ 2,131,950.00 |
| Sep 23, 2025 | Tripodi Blair | Option Excercise | 8078 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Politan Capital Management LP | Other Disposition | 126888 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Politan Capital Management GP LLC | Other Disposition | 126888 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Politan Capital Partners GP LLC | Other Disposition | 126888 | 0.00 | $ 0.00 |
| Aug 29, 2025 | Koffey Quentin | Other Disposition | 126888 | 0.00 | $ 0.00 |
| Aug 12, 2025 | Brennan Michelle | Open Market Purchase | 200 | 152.80 | $ 30,560.00 |
| Aug 11, 2025 | Jellison William R | Open Market Purchase | 3000 | 145.98 | $ 437,940.00 |
| May 12, 2025 | Muhsin Bilal | Option Excercise | 10000 | 34.51 | $ 345,100.00 |
| May 12, 2025 | Muhsin Bilal | Open Market Sale | 10000 | 163.28 | $ 1,632,781.24 |
| Apr 29, 2025 | Politan Capital Management LP | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Politan Capital Management GP LLC | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Politan Capital Partners GP LLC | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Koffey Quentin | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Brennan Michelle | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | REYNOLDS CRAIG B | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Chapek Robert A | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | LANE WENDY E | Option Excercise | 1383 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Jellison William R | Grant | 1790 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Scannell Timothy J | Option Excercise | 1383 | 0.00 | $ 0.00 |
| Apr 29, 2025 | Solomon Darlene J. S. | Option Excercise | 1790 | 0.00 | $ 0.00 |
| Mar 14, 2025 | REYNOLDS CRAIG B | Open Market Sale | 2053 | 166.13 | $ 341,067.97 |
| Mar 10, 2025 | Muhsin Bilal | Option Excercise | 30000 | 37.84 | $ 1,135,200.00 |
| Mar 10, 2025 | Muhsin Bilal | Open Market Sale | 30000 | 167.49 | $ 5,024,585.10 |
| Mar 1, 2025 | Muhsin Bilal | Option Excercise | 15000 | 0.00 | $ 0.00 |
| Mar 1, 2025 | Muhsin Bilal | Option Excercise | 8098 | 188.77 | $ 1,528,659.46 |
| Mar 1, 2025 | Young Micah W | Option Excercise | 15000 | 0.00 | $ 0.00 |
| Mar 1, 2025 | Young Micah W | Option Excercise | 8100 | 188.77 | $ 1,529,037.00 |
| Mar 1, 2025 | Tripodi Blair | Option Excercise | 15000 | 0.00 | $ 0.00 |
| Mar 1, 2025 | Tripodi Blair | Option Excercise | 8104 | 188.77 | $ 1,529,792.08 |
| Feb 12, 2025 | Brennan Michelle | Grant | 8916 | 0.00 | $ 0.00 |
| Feb 12, 2025 | Brennan Michelle | Option Excercise | 4816 | 179.51 | $ 864,520.16 |
| Jan 15, 2025 | Chapek Robert A | Option Excercise | 1665 | $ 0.00 | |
| Nov 13, 2024 | Levy Tao | Option Excercise | 30000 | 0.00 | $ 0.00 |
| Nov 13, 2024 | Levy Tao | Option Excercise | 14398 | 161.68 | $ 2,327,868.64 |