MASI — MASIMO CORP

Ownership history in BRIDGER MANAGEMENT, LLC  ·  3 quarters on record

This page tracks every 13F SEC filing in which BRIDGER MANAGEMENT, LLC reported a position in MASIMO CORP (MASI). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
3.8% (2025 Q3)
Avg. % of fund
3.46%
First filed
2025 Q1
Last filed
2025 Q3
Quarters held
3
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 ADDED 47,841 +14,200 +42.2% 3.80% $7.1M $147.55
2025 Q2 REDUCED 33,641 -5,659 -14.4% 3.34% $5.7M $168.22
2025 Q1 INITIATED 39,300 — — 3.25% $6.5M $166.60
% of Fund (quarterly)    MASI price (monthly, adj. close)

Other funds also holding MASI

As of 2025 Q4 — sorted by position size

Politan Capital Management LP 3Y 71.01% NAYA CAPITAL MANAGEMENT UK LTD 3Y 7Y 15.28% LOCKERMAN FINANCIAL GROUP, INC. 3Y 2.94% Parkman Healthcare Partners LLC 3Y 2.48% WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD 3Y 1.32% Alpha Wave Global, LP 3Y 7Y 1.2% RTW INVESTMENTS, LP 3Y 7Y 0.89% WESTFIELD CAPITAL MANAGEMENT CO LP 3Y 7Y 0.82% LECAP ASSET MANAGEMENT LTD 0.68% Birchview Capital, LP 3Y 7Y 0.63%
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