MASI MASIMO CORP: institutional ownership and insider trading
20 funds reported holding $609M of MASIMO CORP in their latest 13F filings; in Q2 2026 funds net sold $9.89B, with 0 new positions and 447 funds selling out; over the last 12 months insiders bought $0 and sold $2.56M on the open market.
Largest institutional holders of MASI
- VANGUARD GROUP INC — $566M
- CIBRA Capital Ltd — $16.1M
- Nuveen Asset Management, LLC — $12.5M
- CWM, LLC — $6.17M
- JANUS HENDERSON GROUP PLC (JHG) — $3.56M
- COMERICA BANK — $1.59M
- Orion Portfolio Solutions, LLC — $790K
- Laird Norton Wetherby Wealth Management, LLC — $679K
- Bryce Point Capital, LLC — $610K
- WOLVERINE TRADING, LLC — $429K
Recent MASI insider trades
- Jan 28, 2026: Sampath Anand sold 18,680 shares ($2.56M)
- Aug 13, 2025: Brennan Michelle bought 200 shares ($30.6K)
- Aug 11, 2025: Jellison William R bought 3,000 shares ($438K)
- May 12, 2025: Muhsin Bilal sold 10,000 shares ($1.63M)
Members of Congress trading MASI
- Sep 26, 2025: Kevin Hern sold $15.0K–$50.0K
5%+ owners
- Joe Kiani: 6.5% (Schedule 13G/A, filed May 14, 2026)
- Barclays PLC: 5.5% (Schedule 13G, filed May 14, 2026)