Iron Mountain Inc officer Greg W. McIntosh filed a Form 144 notice on November 2, 2026, disclosing a proposed sale of 5,000 shares of Iron Mountain common stock with an aggregate market value of $584,800.00.

Key Highlights

  • Proposed sale: 5,000 shares of Iron Mountain common stock with an aggregate market value of $584,800.00, to be sold through Fidelity Brokerage Services LLC on or around November 2, 2026.
  • Source of shares: The 5,000 shares were acquired on March 1, 2026, via restricted stock vesting from the issuer as compensation.
  • Shares outstanding: According to the filing, Iron Mountain had 297,702,812 shares of common stock outstanding.
  • Prior sales in the past three months: McIntosh sold 11,839 shares on August 6, 2026 (gross proceeds $1,505,092.07), 5,000 shares on September 1, 2026 (gross proceeds $578,000.00), and 5,000 shares on October 1, 2026 (gross proceeds $553,600.00).
  • 10b5-1 plan: The filing indicates the sales rely on a Rule 10b5-1 plan adopted on May 8, 2026.
  • Exchange: Iron Mountain common stock trades on NYSE (NYSE:IRM), as stated in the filing.

McIntosh Form 144 Details: Proposed Sale Under a 10b5-1 Plan

According to the filing, Greg W. McIntosh, identified as an officer of Iron Mountain Inc (NYSE:IRM), submitted a Form 144 notice of proposed sale of securities. The filing states that 5,000 shares of Iron Mountain common stock, with an aggregate market value of $584,800.00, are proposed to be sold through Fidelity Brokerage Services LLC, located at 900 Salem Street, Smithfield, RI 02917. The approximate date of sale listed is November 2, 2026.

The filing discloses that the shares to be sold were acquired on March 1, 2026, through a restricted stock vesting transaction from the issuer, with the nature of payment described as "Compensation." The filing also notes that the proposed sale is being made in reliance on a Rule 10b5-1 trading plan, with a plan adoption date of May 8, 2026. The Form 144 was signed by Jennifer Ruchti as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Gregory McIntosh.

The filing reports three sales by McIntosh in the three months preceding this notice: 11,839 shares sold on August 6, 2026, for gross proceeds of $1,505,092.07; 5,000 shares sold on September 1, 2026, for gross proceeds of $578,000.00; and 5,000 shares sold on October 1, 2026, for gross proceeds of $553,600.00. All sales listed in the past-three-months section are identified as transactions in Iron Mountain common stock.

What Was Disclosed

Iron Mountain officer Greg W. McIntosh filed a Form 144 on November 2, 2026, proposing to sell 5,000 shares of common stock valued at $584,800.00, acquired through restricted stock vesting on March 1, 2026, under a 10b5-1 plan adopted May 8, 2026.