Iron Mountain CEO William L. Meaney Exercises Options and Sells $4.39M in Shares Under 10b5-1 Plan

Executive Summary

On September 1, 2026, William L. Meaney, President and CEO of Iron Mountain Inc. ($IRM), executed an option exercise and corresponding sale of 38,474 shares of common stock pursuant to a pre-scheduled Rule 10b5-1 trading plan adopted on March 14, 2025.

Transaction Breakdown

• Option Exercise:
  • Exercised 38,474 stock options with an exercise price of $37.00 per share.
• Open Market Sales:
  • 11,332 shares sold at a weighted average price of $113.45 ($112.75 – $113.74)
  • 20,952 shares sold at a weighted average price of $114.14 ($113.75 – $114.74)
  • 6,101 shares sold at a weighted average price of $115.00 ($114.75 – $115.67)
  • 89 shares sold at a weighted average price of $116.00 ($115.96 – $116.22)
• Total Gross Sale Value: $4,389,015.68 (Weighted average sale price of ~$114.08 per share).

Holdings Context

Following these transactions:

• Direct Ownership: 0 common shares directly held.
• Indirect Ownership: 295,650 shares held via trusts (82,970 in Meaney 2024 Master Trust; 212,680 in Meaney Master Trust #2).
• Derivative Holdings: 115,422 stock options expiring February 16, 2027 remain outstanding.

Significance & Market Impact

Because the transaction represents a cashless exercise and disposition conducted strictly under a pre-established Rule 10b5-1 trading plan, the market impact is considered routine and moderate. Mr. Meaney retains substantial equity exposure through trust-held shares and remaining option grants.