Form 4 Filing for Iron Mountain Inc. - Doyle Simons

This filing details a transaction by Doyle Simons, a director at Iron Mountain Inc. (IRM), on April 6, 2026. Simons acquired 379.69 shares of phantom stock, which represent common stock, with a price of $103.52 per share. This acquisition is part of the Iron Mountain Incorporated Directors Deferred Compensation Plan. The phantom shares will be payable in common stock upon Simons' disability or cessation of service as a director. The reported price is a weighted average from transactions ranging from $103.45 to $103.54. Dividends paid on common stock have been reinvested, increasing the number of phantom shares. Following this transaction, Simons holds 45,873.936 shares.