Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-03-06 10:05 am Sale | 2026-02-27 | 13G | Masimo Corporation MASI | FMR LLC | 2,349,975 4.500% | -5,681,109 (-70.74%) | Filing History |
| 2026-02-17 9:45 pm Sale | 2026-02-16 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,590,873 6.200% | -125,663 (-2.66%) | Filing History |
| 2026-02-13 7:59 pm Sale | 2025-12-31 | 13G | Masimo Corporation MASI | KIANI JOE E | 5,904,629 10.300% | -472,091 (-7.40%) | Filing History |
| 2026-01-21 12:26 pm Sale | 2025-12-31 | 13G | Masimo Corporation MASI | BlackRock Portfolio Management LLC | 4,386,302 8.200% | -1,150,472 (-20.78%) | Filing History |
| 2025-11-12 8:00 pm Sale | 2025-09-30 | 13G | Masimo Corporation MASI | KIANI JOE E | 6,376,720 11.100% | -207,063 (-3.15%) | Filing History |
| 2025-08-12 7:00 pm Sale | 2025-06-30 | 13G | Masimo Corporation MASI | KIANI JOE E | 6,583,783 11.400% | -1,032,198 (-13.55%) | Filing History |
| 2025-04-22 8:01 pm Purchase | 2025-03-31 | 13G | Masimo Corporation MASI | KIANI JOE E | 7,615,981 13.200% | 2,643,162 (+53.15%) | Filing History |
| 2025-03-04 12:39 pm Purchase | 2025-02-28 | 13G | Masimo Corporation MASI | BlackRock Portfolio Management LLC | 5,536,774 10.300% | 5,536,774 (New Position) | Filing History |
| 2025-02-12 09:30 am Purchase | 2024-12-31 | 13G | Masimo Corporation MASI | FMR LLC | 8,031,083 15.000% | 1,103,511 (+15.93%) | Filing History |
| 2025-02-07 1:50 pm Sale | 2025-01-31 | 13G | Masimo Corporation MASI | BlackRock Inc. BLK | 4,231,142 7.900% | -4,249,088 (-50.11%) | Filing History |
| 2024-09-25 4:01 pm Purchase | 2024-09-24 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,716,536 8.800% | 1,790 (+0.04%) | Filing History |
| 2024-08-30 4:56 pm Unchanged | 2024-08-30 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.800% | 0 (Unchanged) | Filing History |
| 2024-07-17 5:29 pm Unchanged | 2024-07-17 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.900% | 0 (Unchanged) | Filing History |
| 2024-07-15 5:50 pm Unchanged | 2024-07-15 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.900% | 0 (Unchanged) | Filing History |
| 2024-07-12 3:26 pm Unchanged | 2024-07-12 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.900% | 0 (Unchanged) | Filing History |
| 2024-07-08 08:00 am Unchanged | 2024-07-03 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.900% | 0 (Unchanged) | Filing History |
| 2024-06-07 1:30 pm Purchase | 2024-05-31 | 13G | Masimo Corporation MASI | BlackRock Inc. BLK | 8,480,230 16.000% | 2,821,099 (+49.85%) | Filing History |
| 2024-05-09 5:29 pm Unchanged | 2024-05-09 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.900% | 0 (Unchanged) | Filing History |
| 2024-05-08 5:26 pm Purchase | 2024-05-08 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,714,746 8.900% | 1,228 (+0.03%) | Filing History |
| 2024-03-27 12:42 pm Unchanged | 2024-03-25 | 13D | Masimo Corporation MASI | Politan Capital Management LP | 4,713,518 8.900% | 0 (Unchanged) | Filing History |