Quick Answer
IRON MOUNTAIN INC reported Diluted EPS of $0.49 per share for fiscal year 2025.
IRON MOUNTAIN INC Diluted EPS — Annual History
| Fiscal Year | Diluted EPS | YoY Change |
|---|---|---|
| 2025 | $0.49 | -19.7% |
| 2024 | $0.61 | -3.2% |
| 2023 | $0.63 | -66.8% |
| 2022 | $1.90 | +22.6% |
| 2021 | $1.55 | +30.3% |
| 2020 | $1.19 | +28.0% |
| 2019 | $0.93 | -24.4% |
| 2018 | $1.23 | +92.2% |
| 2017 | $0.64 | +52.4% |
| 2016 | $0.42 | -27.6% |
| 2015 | $0.58 | -65.1% |
| 2014 | $1.66 | +232.0% |
| 2013 | $0.50 | -49.0% |
| 2012 | $0.98 | -51.5% |
| 2011 | $2.02 | +796.6% |
| 2010 | -$0.29 | -127.1% |
| 2009 | $1.07 | +167.5% |
| 2008 | $0.40 | — |
Quarterly Diluted EPS
| Quarter Ending | Diluted EPS | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $0.28 | +354.5% | +286.7% |
| June 30, 2025 | -$0.15 | -225.0% | -400.0% |
| March 31, 2025 | $0.05 | -80.0% | +145.5% |
| September 30, 2024 | -$0.11 | -135.5% | -191.7% |
| June 30, 2024 | $0.12 | — | -52.0% |
| March 31, 2024 | $0.25 | +13.6% | -19.4% |
| September 30, 2023 | $0.31 | -53.0% | — |
| June 30, 2023 | $0.00 | -100.0% | -100.0% |
- IRON MOUNTAIN INC showed a decrease of -19.7% in Diluted EPS compared to the prior fiscal year.
- Over the 2008–2025 period, IRON MOUNTAIN INC’s diluted eps has grown by 22.5% (from $0.40 per share to $0.49 per share).
- The most recent figure is from IRON MOUNTAIN INC’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 12, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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