What smart money is saying about Masimo Corporation
2 funds in our archive have pitched Masimo Corporation — most recently Baron Health Care Fund in June 2025.
Masimo Corporation develops, manufactures, and markets noninvasive monitoring technologies and hospital automation solutions worldwide. The company offers masimo signal extraction technology (SET) pulse oximetry with measure-through motion and low perfusion pulse oximetry monitoring to address the primary limitations of conventional pulse oximetry. It also provides Masimo rainbow SET platform that includes rainbow SET Pulse CO-Oximetry products that noninvasively monitor hemoglobin species, including oxygen saturation, pulse rate, perfusion index, pleth variability index, and respiration rate from the pleth; noninvasively monitor hemoglobin concentration, and carboxyhemoglobin and methemoglobin; monitor arterial oxygen saturation and acoustic respiration rate; and calculates oxygen content and oxygen reserve index. It offers SedLine brain function monitoring technology to measure the brain's electrical activity by detecting EEG signals; capnography and gas monitoring products comprising external plug-in-and-measure capnography and gas analyzers, integrated modules, handheld capnograph and capnometer devices, and capnography sampling lines; O3 regional oximetry for tissue oxygen saturation measurement; and hemodynamic monitoring solutions. Its Masimo Hospital Automation platform includes Patient SafetyNet, Patient SafetyNet surveillance, Kite, UniView, Replica, UniView : 60, and MyView. It offers connectivity devices; and nasal high flow ventilation and neuromodulation solutions. It provides its products through direct sales force, distributors, and original equipment manufacturers partners to hospitals, emergency medical service and home care providers, long-term care facilities, physician offices, veterinarians, and consumers; and non-medical/consumer products through e-commerce site, masimopersonalhealth.com. The company was incorporated in 1989 and is headquartered in Irvine, California.
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Position history
Between Q1 2025 and Q2 2026, 1 fund letter reported a position in Masimo Corporation — 1 trimmed or exited.
| Quarter | Letters | Bought | Sold | Theses |
|---|---|---|---|---|
| Q2 2026 | 1 | 0 | 1 | 0 |
| Q2 2025 | 0 | 0 | 0 | 1 |
| Q1 2025 | 0 | 0 | 0 | 1 |
Fund activity · 1 position · 1 move
- ExitedNuance Investments Concentrated Value StrategyJune 2026
“Stocks We Eliminated from Your Portfolio (Second Quarter 2026): Calavo Growers, Inc. (CVGW): CVGW is a leading distributor of avocados in the U.S. We exited the position due to the company being acquired by Mission Produce, Inc. (AVO). Daikin Industries, Ltd. (DKILY): DKILY is the world’s largest manufacturer of air conditioning equipment and supplies with leading market share positions across most of its geographical segments. Following outperformance in the stock, we exited our position in favor of better risk reward opportunities elsewhere. Estee Lauder Companies Inc. (EL): EL is a leading producer of beauty products, including facial moisturizers, makeup, and lip products, among others. In March 2026, EL confirmed rumors that it was exploring a merger with Puig Brands, S.A. (PUIG), a leader in premium fragrances. This created some uncertainty in terms of what type of valuation the company would need to pay to acquire PUIG, and uncertainty around what the balance sheet would look like in terms of leverage. We exited the position in favor of better risk reward opportunities. Globe Life Inc. (GL): We have exited our position in GL after a successful holding period as the company’s share price exceeded our estimate of fair value. GL remains one of our favorite companies within the Insurance industry due to its favorable competitive position and strong balance sheet relative to peers. We will look for future opportunities to invest in GL shares at a more attractive risk reward. H2O America (HTO): HTO is the second-largest pure play water utility holding company in the United States with operations primarily in California, Texas, and Connecticut. Following a favorable Fair Market Value (FMV) determination and successful capital raise for the company’s acquisition of Quadvest, shares outperformed and we exited our position in favor of more attractive risk rewards elsewhere. IDEX Corporation (IEX): IEX is a leading and diversified manufacturer of a variety of key engineered fluidics systems and components used in various industrial processes, health and science devices, and fire and safety products. We exited our position during the quarter as the stock surpassed our internal estimate of fair value. Masimo Corporation (MASI): Danaher Corporation (DHR) completed the $180.00 per share acquisition of MASI during the second quarter and we deployed the cash proceeds from the acquisition into other opportunities.”
Masimo Corporation
Fund coverage · 2 theses
- Baron Health Care FundJune 2025
Masimo Corporation is a medical device company focused on non-invasive patient monitoring technologies, recently divested its consumer audio business to concentrate on health care, and is optimistic about growth and profitability under new CEO Katie Szyman.
Read the full thesis - Baron Health Care FundMarch 2025
Masimo Corporation is a leading medical device company specializing in advanced non-invasive patient monitoring technologies, particularly in pulse oximetry, and is positioned for steady revenue growth and margin expansion in the healthcare sector.
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