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Iron Mountain Incorporated Shares Outstanding 2008–2025
Iron Mountain Incorporated (IRM) annual shares outstanding by fiscal year, computed from SEC filings. Compound growth +2.3%/yr over 17 years.
| Fiscal year | Shares Outstanding | Change (YoY) |
|---|---|---|
| FY 2025 | 295.8M | +0.7% |
| FY 2024 | 293.6M | +0.5% |
| FY 2023 | 292.1M | +0.5% |
| FY 2022 | 290.8M | +0.4% |
| FY 2021 | 289.8M | +0.5% |
| FY 2020 | 288.3M | +0.3% |
| FY 2019 | 287.3M | +0.3% |
| FY 2018 | 286.3M | +1.1% |
| FY 2017 | 283.1M | +7.4% |
| FY 2016 | 263.7M | +24.8% |
| FY 2015 | 211.3M | +0.7% |
| FY 2014 | 209.8M | +1.3% |
| FY 2013 | 207.1M | +0.7% |
| FY 2012 | 205.6M | +2.0% |
| FY 2011 | 201.5M | +0.7% |
| FY 2010 | 200.1M | -1.7% |
| FY 2009 | 203.5M | +0.8% |
| FY 2008 | 201.9M | — |
Source: Iron Mountain Incorporated SEC filings — balance sheet (10-K), split-adjusted. Refreshed nightly.
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What is Iron Mountain Incorporated's shares outstanding?
Iron Mountain Incorporated (IRM) reported shares outstanding of 295.8M for fiscal year 2025, per its SEC filings.
How has Iron Mountain Incorporated's shares outstanding changed over time?
Between fiscal 2008 and 2025, IRM's shares outstanding grew at roughly 2.3% per year (compound annual rate), from 201.9M to 295.8M.
Where does this data come from?
Figures are computed from Iron Mountain Incorporated's official SEC filings (balance sheet (10-K), split-adjusted), refreshed nightly. Not investment advice.