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Iron Mountain Inc (IRM) stock

IRMNYSEReal Estate Investment TrustsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 7/3064% above fair value
$113.75−0.83 (-0.72%)

Close on Nov 13, 2026Market cap $33.86BP/E 74.3Yield 2.83%

Iron Mountain total debt

Total debt is short-term plus long-term borrowings on the balance sheet at the end of each period.

Iron Mountain's total debt was $17.97B at Sep 30, 2026. For fiscal 2025 it was $16.43B, up 19.8% from the year before. Over ten years it grew 13.0% a year on average. The highest annual figure on record is $16.43B in fiscal 2025.

Annual total debt

PeriodPeriod endValueChange
FY2025Dec 31, 2025$16.43B+19.8%
FY2024Dec 31, 2024$13.72B+15.0%
FY2023Dec 31, 2023$11.93B+12.9%
FY2022Dec 31, 2022$10.57B+14.0%
FY2021Dec 31, 2021$9.27B+6.5%
FY2020Dec 31, 2020$8.70B+0.4%
FY2019Dec 31, 2019$8.66B+6.4%
FY2018Dec 31, 2018$8.14B+15.6%
FY2017Dec 31, 2017$7.04B+12.7%
FY2016Dec 31, 2016$6.25B+29.0%
FY2015Dec 31, 2015$4.85B+5.0%
FY2014Dec 31, 2014$4.62B+10.7%
FY2013Dec 31, 2013$4.17B+9.1%
FY2012Dec 31, 2012$3.83B+14.1%
FY2011Dec 31, 2011$3.35B+11.5%
FY2010Dec 31, 2010$3.01B-7.5%
FY2009Dec 31, 2009$3.25B–

Quarterly total debt

Change is against the same quarter a year earlier.

PeriodPeriod endValueChange
Q3 FY2026Sep 30, 2026$17.97B+11.0%
Q2 FY2026Jun 30, 2026$17.35B+11.2%
Q1 FY2026Mar 31, 2026$17.10B+14.7%
Q4 FY2025Dec 31, 2025$16.43B+19.8%
Q3 FY2025Sep 30, 2025$16.19B+21.0%
Q2 FY2025Jun 30, 2025$15.60B+20.5%
Q1 FY2025Mar 31, 2025$14.91B+17.4%
Q4 FY2024Dec 31, 2024$13.72B+15.0%
Q3 FY2024Sep 30, 2024$13.38B+14.8%
Q2 FY2024Jun 30, 2024$12.94B+15.1%
Q1 FY2024Mar 31, 2024$12.71B+15.9%
Q4 FY2023Dec 31, 2023$11.93B+12.9%
Q3 FY2023Sep 30, 2023$11.66B+13.1%
Q2 FY2023Jun 30, 2023$11.25B+11.6%
Q1 FY2023Mar 31, 2023$10.96B+7.1%
Q4 FY2022Dec 31, 2022$10.57B+14.0%
Q3 FY2022Sep 30, 2022$10.31B+12.9%
Q2 FY2022Jun 30, 2022$10.08B+13.7%
Q1 FY2022Mar 31, 2022$10.23B+14.8%
Q4 FY2021Dec 31, 2021$9.27B+6.5%
Q3 FY2021Sep 30, 2021$9.13B+1.4%
Q2 FY2021Jun 30, 2021$8.87B-7.9%
Q1 FY2021Mar 31, 2021$8.92B+0.9%
Q4 FY2020Dec 31, 2020$8.70B+0.4%
Q3 FY2020Sep 30, 2020$9.01B+4.6%
Q2 FY2020Jun 30, 2020$9.63B+13.1%
Q1 FY2020Mar 31, 2020$8.84B+4.1%
Q4 FY2019Dec 31, 2019$8.66B+6.4%
Q3 FY2019Sep 30, 2019$8.62B+4.7%
Q2 FY2019Jun 30, 2019$8.51B+5.3%
Q1 FY2019Mar 31, 2019$8.49B+4.1%
Q4 FY2018Dec 31, 2018$8.14B+15.6%
Q3 FY2018Sep 30, 2018$8.23B+19.6%
Q2 FY2018Jun 30, 2018$8.09B+25.3%
Q1 FY2018Mar 31, 2018$8.16B+28.6%
Q4 FY2017Dec 31, 2017$7.04B+12.7%
Q3 FY2017Sep 30, 2017$6.88B–
Q2 FY2017Jun 30, 2017$6.45B–
Q1 FY2017Mar 31, 2017$6.34B–
Q4 FY2016Dec 31, 2016$6.25B–

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