Masimo - 18 Year Stock Price History | MASI
Historical daily share price chart and data for Masimo since 2007 adjusted for splits and dividends. The latest closing stock price for Masimo as of August 22, 2025 is 148.63.
- The all-time high Masimo stock closing price was 303.29 on November 19, 2021.
- The Masimo 52-week high stock price is 194.88, which is 31.1% above the current share price.
- The Masimo 52-week low stock price is 107.98, which is 27.3% below the current share price.
- The average Masimo stock price for the last 52 weeks is 158.22.
| Masimo Historical Annual Stock Price Data | ||||||
|---|---|---|---|---|---|---|
| Year | Average Stock Price | Year Open | Year High | Year Low | Year Close | Annual % Change |
| 2025 | 164.2618 | 168.5700 | 190.6300 | 144.2400 | 148.6300 | -10.08% |
| 2024 | 133.7498 | 114.6100 | 177.7000 | 104.7900 | 165.3000 | 41.03% |
| 2023 | 137.8314 | 146.0300 | 196.4700 | 76.7300 | 117.2100 | -20.78% |
| 2022 | 152.2620 | 284.8700 | 284.8700 | 110.8800 | 147.9500 | -49.47% |
| 2021 | 259.0398 | 265.9000 | 303.2900 | 208.4900 | 292.7800 | 9.09% |
| 2020 | 216.4703 | 158.5800 | 271.3500 | 148.3800 | 268.3800 | 69.80% |
| 2019 | 141.4507 | 105.5200 | 159.8700 | 102.7800 | 158.0600 | 47.21% |
| 2018 | 101.2573 | 86.0400 | 125.3200 | 82.0600 | 107.3700 | 26.62% |
| 2017 | 87.3442 | 67.4000 | 104.4600 | 67.4000 | 84.8000 | 25.82% |
| 2016 | 50.7606 | 39.1900 | 67.8500 | 35.1200 | 67.4000 | 62.37% |
| 2015 | 36.6685 | 25.8800 | 43.6100 | 25.5200 | 41.5100 | 57.59% |
| 2014 | 25.1704 | 29.0500 | 31.8800 | 20.6900 | 26.3400 | -9.89% |
| 2013 | 23.5181 | 21.3300 | 29.6100 | 19.0400 | 29.2300 | 39.12% |
| 2012 | 20.7752 | 17.9443 | 23.7002 | 17.5536 | 21.0100 | 17.99% |
| 2011 | 25.4848 | 28.7986 | 33.1917 | 17.0009 | 17.8061 | -35.72% |
| 2010 | 24.4144 | 25.7992 | 30.4567 | 19.7177 | 27.7026 | 5.05% |
| 2009 | 22.9155 | 25.7472 | 26.9435 | 19.1847 | 26.3714 | 1.98% |
| 2008 | 28.3180 | 33.8268 | 36.3668 | 19.1067 | 25.8599 | -24.39% |
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Medical | Medical Instruments Manufacturing | $8.074B | $2.094B |
| Masimo Corporation develops, manufactures and markets a family of non-invasive monitoring systems. The Company has two segments: Product Revenues, Royalty & Other revenues. Within Product revenues, the company's flagship - Signal Extraction Tecgnology (SET) Pulse Oximetry - is used to monitor blood oxygen saturation levels and protect against hypoxemia and hyperoxemia. The device also measures pulse rate. Apart from blood monitoring, the company has also ventured into non-invasive blood constituent, brain and breathe monitoring. The company's rainbow Pulse CO-Oximetry measures blood constituents that include total hemoglobin (SpHb), oxygen content (SpOC), carboxyhemoglobin (SpCO), methemoglobin (SpMet) and SET measurements of oxygen saturation (SpO2), pulse rate (PR), perfusion index (PI), and pleth variability index (PVi). Rainbow Acoustic Monitoring measures respiration rate (RRa) non-invasively and on a continuous basis. SedLine monitors brain functioning of patients under anesthesia or sedation. | |||
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