MASI - CIK 0000937556
MASIMO CORP has filed 1,510 documents with the SEC between 1996 and 2026. The most frequent type is insider trade (663 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| SD | - | 2024-05-23 | - |
| Proxy materials | DEFA14A | 2024-05-20 | - |
| Proxy materials | DEFA14A | 2024-05-16 | - |
| Proxy materials | DEFA14A | 2024-05-13 | - |
| Proxy materials | DEFA14A | 2024-05-13 | - |
| DFAN14A | - | 2024-05-10 | - |
| Proxy materials | DEFA14A | 2024-05-09 | - |
| Activist ownership stake (update) | SC 13D/A | 2024-05-09 | - |
| Major company event | 8-K | 2024-05-08 | 2024-05-03 |
| Activist ownership stake (update) | SC 13D/A | 2024-05-08 | - |
| Quarterly report | 10-Q | 2024-05-07 | 2024-03-30 |
| Major company event | 8-K | 2024-05-07 | 2024-05-07 |
| Insider trade | 4 | 2024-05-03 | 2024-05-01 |
| Insider trade | 4 | 2024-04-30 | 2024-04-26 |
| Annual report (amended) | 10-K/A | 2024-04-29 | 2023-12-30 |
| Insider sale notice | 144 | 2024-04-26 | - |
| Proxy materials | DEFA14A | 2024-04-02 | - |
| Proxy materials | DEFA14A | 2024-04-01 | - |
| SEC correspondence | UPLOAD | 2024-04-01 | - |
| Activist ownership stake (update) | SC 13D/A | 2024-03-27 | - |
| DFAN14A | - | 2024-03-25 | - |
| Major company event | 8-K | 2024-03-22 | 2024-03-22 |
| Insider trade | 4 | 2024-03-01 | 2024-03-01 |
| Insider trade | 4 | 2024-03-01 | 2024-02-28 |
| Insider trade | 4 | 2024-03-01 | 2024-02-28 |
| Insider trade | 4 | 2024-03-01 | 2024-02-28 |
| Insider trade | 4 | 2024-03-01 | 2024-02-28 |
| Insider trade | 4 | 2024-03-01 | 2024-02-28 |
| Annual report | 10-K | 2024-02-28 | 2023-12-30 |
| Major company event | 8-K | 2024-02-27 | 2024-02-27 |
| Major company event | 8-K | 2024-02-15 | 2024-02-13 |
| Passive ownership stake (update) | SC 13G/A | 2024-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2024-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2024-02-09 | - |
| Passive ownership stake (update) | SC 13G/A | 2024-01-24 | - |
| Insider trade | 4 | 2024-01-16 | 2024-01-16 |
| New insider ownership | 3 | 2024-01-16 | 2024-01-15 |
| Major company event | 8-K | 2024-01-16 | 2024-01-15 |
| Major company event | 8-K | 2024-01-10 | 2024-01-10 |
| Insider trade | 4 | 2023-12-21 | 2023-12-19 |
| Major company event | 8-K | 2023-11-22 | 2023-11-17 |
| Quarterly report | 10-Q | 2023-11-08 | 2023-09-30 |
| New insider ownership | 3 | 2023-11-07 | 2023-11-03 |
| Major company event | 8-K | 2023-11-07 | 2023-11-03 |
| Major company event | 8-K | 2023-11-07 | 2023-11-07 |
| Major company event | 8-K | 2023-10-27 | 2023-10-26 |
| Insider trade (amended) | 4/A | 2023-08-11 | 2023-08-11 |
| Insider trade | 4 | 2023-08-10 | 2023-08-10 |
| New insider ownership | 3 | 2023-08-08 | 2023-08-08 |
| Quarterly report | 10-Q | 2023-08-08 | 2023-07-01 |