Iron Mountain Officer Greg McIntosh Files Form 144 to Sell $553K in Common Stock

Insider Filing Overview: Form 144

Iron Mountain Inc ($IRM) officer Greg W. McIntosh has filed a proposed sale under Rule 144 for 5,000 shares of common stock, representing an aggregate market value of approximately $553,600.00 ($110.72 per share based on current market pricing).

Transaction Details

• Filer: Greg W McIntosh, Officer
• Securities to be Sold: 5,000 Common shares
• Aggregate Market Value: $553,600.00
• Approximate Sale Date: October 1, 2026
• Origin of Shares: Acquired on March 1, 2026, through Restricted Stock Vesting as equity compensation.
• Trading Plan: Adopted under Rule 10b5-1 on May 8, 2026.

Past 3-Month Activity

• August 6, 2026: Sold 11,839 shares for gross proceeds of $1,505,092.07
• September 1, 2026: Sold 5,000 shares for gross proceeds of $578,000.00

Analysis

With 297,702,812 shares outstanding, the proposed 5,000-share sale accounts for less than 0.002% of the issuer's total common shares. The transaction appears routine, scheduled under a pre-established 10b5-1 trading plan adopted in May 2026, and follows periodic monthly distributions from vested incentive awards. As such, trading significance is assessed as Low.