Iron Mountain (IRM) Proxy filing summary

Executive summary

• The annual meeting is scheduled for May 7, 2026, via virtual webcast, with shareholders of record as of March 9, 2026, eligible to vote on key proposals.

• Proposals include election of eleven directors, a non-binding advisory vote on executive compensation, and ratification of Deloitte & Touche LLP as independent auditor for 2026.

• The company reported strong financial performance in 2025, with 12% revenue growth to $6.9B, 15% increase in Adjusted EBITDA to $2.6B, and 15% growth in AFFO to $1.5B.

• Total shareholder return (TSR) over five years was 247%, outperforming the MSCI US REIT Index (38%).

Voting matters and shareholder proposals

• Shareholders will vote on the election of eleven directors, approval of executive compensation (say-on-pay), and ratification of Deloitte & Touche LLP as auditor.

• Proxy access is available for shareholders meeting ownership and duration requirements.

Board of directors and corporate governance

• Ten of eleven director nominees are independent; the board is 91% independent, with an average tenure of 9.5 years and 55% overall diversity.

• The board is led by an independent chair, with all committees fully independent.

• Annual board and committee evaluations are conducted, with ongoing refreshment and robust stock ownership guidelines.

• No poison pill is in place; proxy access and majority voting standards are established.