MASI — MASIMO CORP

Ownership history in Advisory Services Network, LLC  ·  35 quarters on record

This page tracks every 13F SEC filing in which Advisory Services Network, 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
0.04% (2020 Q3)
Avg. % of fund
0.01%
First filed
2013 Q4
Last filed
2025 Q3
Quarters held
35
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 315 -542 -63.2% 0.00% $46K $147.55
2023 Q4 ADDED 857 +92 +12.0% 0.00% $100K $117.21
2023 Q1 ADDED 765 +14 +1.9% 0.00% $141K $184.54
2022 Q4 REDUCED 751 -5,749 -88.4% 0.00% $111K $147.95
31 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% 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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