4processed

Form 4 — Insider Transaction

IRON MOUNTAIN INC(IRM)

Filing Date

May 21, 2026

Accepted

May 21, 2026

Accession No.

0001720656-26-000007

CIK

0001020569

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Borges DanielSVP & Chief Accounting OfficerOther7.2K$125.50Common Stock, par value $.01 per shareMay 21, 2026