Institutional shares held 43.2 Million
310K calls
268K puts
Total value of holdings $7.38B
$53M calls
$45.9M puts
Market Cap $9.06B
52,530,200 Shares Out.
Institutional ownership 82.18%
# of Institutions 395


Latest Institutional Activity in MASI

Top Purchases

Q3 2024
T. Rowe Price Investment Management, Inc. Shares Held: 1.53M ($263M)
Q3 2024
Alyeska Investment Group, L.P. Shares Held: 745K ($129M)
Q3 2024
Capital Research Global Investors Shares Held: 1.36M ($235M)
Q3 2024
Westfield Capital Management CO LP Shares Held: 1.39M ($241M)
Q3 2024
Morgan Stanley Shares Held: 737K ($127M)

Top Sells

Q3 2024
Thrivent Financial For Lutherans Shares Held: 10.4K ($1.79M)
Q3 2024
Millennium Management LLC Shares Held: 29.3K ($5.05M)
Q3 2024
Vanguard Group Inc Shares Held: 4.52M ($780M)
Q3 2024
Woodline Partners LP Shares Held: 9.3K ($1.6M)
Q3 2024
Holocene Advisors, LP Shares Held: 875K ($151M)

About MASI

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.


Insider Transactions at MASI

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
331K Shares
From 10 Insiders
Exercise of conversion of derivative security 315K shares
Grant, award, or other acquisition 15.1K shares
Sell / Disposition
60.3K Shares
From 6 Insiders
Open market or private sale 40K shares
Payment of exercise price or tax liability 20.3K shares

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