Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-25-085646
Filing Date
2025-08-29
Accepted
2025-08-29 16:05:19
Documents
1
Period of Report
2025-08-29

Document Format Files

Seq Description Document Type Size
1 OWNERSHIP DOCUMENT tm2524450-1_4seq1.html 4  
1 OWNERSHIP DOCUMENT tm2524450-1_4seq1.xml 4 9901
  Complete submission text file 0001104659-25-085646.txt   13138
Mailing Address 52 DISCOVERY IRVINE CA 92618
Business Address 52 DISCOVERY IRVINE CA 92618 949-297-7000
MASIMO CORP (Issuer) CIK: 0000937556 (see all company filings)

EIN.: 330368882 | State of Incorp.: DE | Fiscal Year End: 0103
SIC: 3845 Electromedical & Electrotherapeutic Apparatus
(CF Office: 08 Industrial Applications and Services)

Mailing Address 106 WEST 56TH STREET 10TH FLOOR NEW YORK NY 10019
Business Address 106 WEST 56TH STREET 10TH FLOOR NEW YORK NY 10019 (212) 756-2000
Politan Capital Management LP (Reporting) CIK: 0001885245 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-33642 | Film No.: 251280807

Mailing Address POLITAN CAPITAL MANAGEMENT LP 106 WEST 56TH STREET, 10TH FLOOR NEW YORK NY 10019
Business Address
Koffey Quentin (Reporting) CIK: 0001984174 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-33642 | Film No.: 251280804

Mailing Address 106 WEST 56TH STREET, 10TH FLOOR NEW YORK NY 10019
Business Address 106 WEST 56TH STREET, 10TH FLOOR NEW YORK NY 10019 646-690-2830
Politan Capital Partners GP LLC (Reporting) CIK: 0001984175 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-33642 | Film No.: 251280805

Mailing Address 106 WEST 56TH STREET, 10TH FLOOR NEW YORK NY 10019
Business Address 106 WEST 56TH STREET, 10TH FLOOR NEW YORK NY 10019 646-690-2830
Politan Capital Management GP LLC (Reporting) CIK: 0001984176 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-33642 | Film No.: 251280806