IRON MOUNTAIN INC — Director's Dealing 2025

May 27, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2025-05-22

Reporting Person: McIntosh Greg W (EVP, CCO & GM, Global RM)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-22	Common Stock, par value $.01 per share	S	1654	$96.14	Disposed	70114	Direct
2025-05-22	Common Stock, par value $.01 per share	M	6744	$31.46	Acquired	76858	Direct
2025-05-22	Common Stock, par value $.01 per share	S	6744	$96.14	Disposed	70114	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-22	Employee Stock Option (Right to Buy)	$31.46	M	6744	Disposed	2026-03-09	Common Stock (6744)	Direct

Footnotes

F1: This stock option was granted on March 9, 2019 and is fully vested.