Quick Answer
MASIMO CORP reported Shares Outstanding of 52.10 million shares for fiscal year 2025.
MASIMO CORP Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 52.10M | -2.8% |
| 2024 | 53.60M | +1.5% |
| 2023 | 52.80M | +0.6% |
| 2022 | 52.50M | -5.1% |
| 2021 | 55.30M | +0.1% |
| 2020 | 55.25M | +2.9% |
| 2019 | 53.70M | +1.2% |
| 2018 | 53.09M | +2.8% |
| 2017 | 51.64M | +0.0% |
| 2016 | 51.64M | +2.9% |
| 2015 | 50.19M | -4.6% |
| 2014 | 52.59M | -7.1% |
| 2013 | 56.62M | -1.2% |
| 2012 | 57.31M | -1.6% |
| 2011 | 58.25M | -2.0% |
| 2010 | 59.46M | +2.7% |
| 2009 | 57.88M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | 53.10M | -0.7% | -2.2% |
| June 30, 2025 | 54.30M | +2.1% | +0.2% |
| March 31, 2025 | 54.20M | +2.1% | +1.1% |
| December 31, 2024 | 53.60M | +1.5% | +0.2% |
| September 30, 2024 | 53.50M | +1.3% | +0.6% |
| June 30, 2024 | 53.20M | +0.8% | +0.2% |
| March 31, 2024 | 53.10M | +0.6% | +0.6% |
| December 31, 2023 | 52.80M | +0.6% | +0.0% |
- MASIMO CORP showed a decrease of -2.8% in Shares Outstanding compared to the prior fiscal year.
- Over the 2009–2025 period, MASIMO CORP’s shares outstanding has declined by 10.0% (from 57.88 million shares to 52.10 million shares).
- The most recent figure is from MASIMO CORP’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 27, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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