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MASIMO CORP

CIK: 937556 SIC: 3845
1000
Total Filings
14
Filing Categories
55
Financial Reports
All Categories 1000 Financial Reports 95 Current Event Reports 228 Registration Statements 23 Proxy & Shareholder Statements 142 Prospectus Filings 1 Insider Trading 744 Beneficial Ownership 114 Securities Sales 17 Employee Benefit Plans 17 Free Writing Prospectus 1 Specialized Disclosure 12 Annual Reports to Shareholders 8 Exchange Act Filings 7 SEC Correspondence 38 SEC Orders 31 Other Filings 21

Proxy & Shareholder Statements

Shareholder meeting materials and voting information

133 filings
Form Filing Type Period Filed Date Action
PREM14A
Preliminary Merger Proxy
Preliminary proxy statement for merger
2026-03-18
2026-03-18
Local
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2026-02-27
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2026-02-17
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2026-02-17
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2026-02-17
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2026-02-17
Local
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2025-04-29
2025-03-26
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-19
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-18
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-18
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-18
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-18
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-18
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-17
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-17
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-17
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-16
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-16
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-16
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-13
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-13
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-12
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-12
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-12
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-12
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-09
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-09
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-09
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-09
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-09-06
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-06
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-04
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-04
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-09-03
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-08-30
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-08-28
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-08-27
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-08-26
SEC
DEFR14A
Revised Proxy Statement
Revised definitive proxy materials
-
2024-08-22
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-08-15
SEC
DEFR14A
Revised Proxy Statement
Revised definitive proxy materials
-
2024-08-15
SEC
DFRN14A
Revised Non-Management Proxy
Revised non-management proxy materials
-
2024-08-06
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-24
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-23
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-19
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-17
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-16
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-15
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-15
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-15
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-12
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-11
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-11
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-08
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-02
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-07-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-01
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-07-01
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-06-26
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-06-26
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-06-26
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-06-26
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-06-26
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-06-20
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-06-20
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-06-17
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-06-17
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-06-12
SEC
PRER14A
Revised Preliminary Proxy
Revised preliminary proxy materials
-
2024-06-10
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-06-03
SEC
PREC14A
Preliminary Contested Proxy
Preliminary proxy for contested solicitation
-
2024-06-03
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-31
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-31
SEC
PREC14A
Preliminary Contested Proxy
Preliminary proxy for contested solicitation
-
2024-05-31
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-20
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-16
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-13
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-13
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-05-10
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-05-09
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-04-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-04-01
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2024-03-25
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-23
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-22
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-20
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-20
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-06-15
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-06-13
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-13
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-12
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-06-12
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-09
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-06
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-06-06
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-06-01
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-05-31
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-30
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-30
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-05-26
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-05-26
SEC
DEFR14A
Revised Proxy Statement
Revised definitive proxy materials
-
2023-05-25
SEC
PRER14A
Revised Preliminary Proxy
Revised preliminary proxy materials
-
2023-05-24
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-23
SEC
PRER14A
Revised Preliminary Proxy
Revised preliminary proxy materials
-
2023-05-19
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-19
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-18
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-18
SEC
PREC14A
Preliminary Contested Proxy
Preliminary proxy for contested solicitation
-
2023-05-12
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-05-09
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-02
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2023-05-02
SEC
PREC14A
Preliminary Contested Proxy
Preliminary proxy for contested solicitation
-
2023-05-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-04-19
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-03-23
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2022-04-05
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2022-01-01
2022-04-05
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2021-04-15
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2021-01-02
2021-04-15
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2020-05-21
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2020-04-16
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2019-12-28
2020-04-16
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2019-04-12
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2018-12-29
2019-04-12
Local
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2017-12-30
2018-04-20
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2017-05-26
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2017-05-24
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2016-12-31
2017-04-12
Local
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2016-01-02
2016-03-16
Local

Filing categories are based on SEC form types. Click on any filing to view detailed financial data.

Legend: Financial Reports Current Event Reports Registration Statements Proxy & Shareholder Statements Prospectus Filings Insider Trading Beneficial Ownership Securities Sales Employee Benefit Plans Free Writing Prospectus Specialized Disclosure Annual Reports to Shareholders Exchange Act Filings SEC Correspondence SEC Orders Other Filings

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