MASIMO CORP — DEFA14A Filings
76 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by MASIMO CORP (MASI), sorted by most recent first. Each row links to the full filing on EdgarLookup. MASIMO CORP has filed 76 DEFA14A documents with the SEC since 2015. To view all SEC filings by MASIMO CORP, see the full filings list.
All
10-K
10-K/A
10-Q
10KSB40
10QSB
11-K
144
15-12G
15-15D
25
3
3/A
4
4/A
424B4
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERTNAS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFC14A
DEFR14A
DFAN14A
DFRN14A
EFFECT
FWP
NT 11-K
POS AM
POSASR
PREC14A
PREM14A
PRER14A
PRRN14A
REGDEX
RW
S-1
S-1/A
S-3ASR
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001104659-26-016485 | Feb 17, 2026 | — |
| DEFA14A | DEFA14A | 0001104659-26-016483 | Feb 17, 2026 | — |
| DEFA14A | DEFA14A | 0001104659-26-015913 | Feb 17, 2026 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-080007 | Sep 19, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-079866 | Sep 18, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-079608 | Sep 18, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-079586 | Sep 18, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-079139 | Sep 17, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-079130 | Sep 17, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-078954 | Sep 16, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-078708 | Sep 16, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-078276 | Sep 13, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-078220 | Sep 12, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-078074 | Sep 12, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-076985 | Sep 9, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-076833 | Sep 9, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-076628 | Sep 9, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-076258 | Sep 6, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-075577 | Sep 4, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-075293 | Sep 4, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-075170 | Sep 3, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-073053 | Aug 28, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-072696 | Aug 27, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-072471 | Aug 26, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-069376 | Aug 15, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-063724 | Jul 24, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-063494 | Jul 23, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-061523 | Jul 16, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-061180 | Jul 15, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-060640 | Jul 11, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-059787 | Jul 8, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-058682 | Jul 2, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-058202 | Jul 2, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-057956 | Jul 1, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-057570 | Jul 1, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-055984 | Jun 26, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-054308 | Jun 20, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-053983 | Jun 20, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-053370 | Jun 17, 2024 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001213900-24-053129 | Jun 17, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-052164 | Jun 12, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-048515 | May 31, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-048184 | May 31, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-044874 | May 20, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-043934 | May 16, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-042295 | May 13, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-041927 | May 13, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-041159 | May 9, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-029030 | Apr 2, 2024 | — |
| DEFA14A | SOLICITING MATERIAL PURSUANT TO 240.14A-12 | 0001213900-24-028227 | Apr 1, 2024 | — |