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Iron Mountain (IRM) Shares Outstanding (Weighted Average) (2016 - 2025)

Historic Shares Outstanding (Weighted Average) for Iron Mountain (IRM) over the last 16 years, with Q4 2025 value amounting to $295.4 million.

  • Iron Mountain's Shares Outstanding (Weighted Average) rose 69.47% to $295.4 million in Q4 2025 from the same period last year, while for Dec 2025 it was $295.4 million, marking a year-over-year increase of 69.47%. This contributed to the annual value of $295.4 million for FY2025, which is 69.47% up from last year.
  • Latest data reveals that Iron Mountain reported Shares Outstanding (Weighted Average) of $295.4 million as of Q4 2025, which was up 69.47% from $295.8 million recorded in Q3 2025.
  • In the past 5 years, Iron Mountain's Shares Outstanding (Weighted Average) registered a high of $295.8 million during Q3 2025, and its lowest value of $288.8 million during Q1 2021.
  • Moreover, its 5-year median value for Shares Outstanding (Weighted Average) was $291.9 million (2023), whereas its average is $292.1 million.
  • As far as peak fluctuations go, Iron Mountain's Shares Outstanding (Weighted Average) surged by 31.82% in 2021, and later soared by 73.84% in 2025.
  • Over the past 5 years, Iron Mountain's Shares Outstanding (Weighted Average) (Quarter) stood at $289.5 million in 2021, then grew by 0.47% to $290.8 million in 2022, then rose by 0.39% to $291.9 million in 2023, then rose by 0.49% to $293.4 million in 2024, then rose by 0.69% to $295.4 million in 2025.
  • Its last three reported values are $295.4 million in Q4 2025, $295.8 million for Q3 2025, and $295.4 million during Q2 2025.