IRON MOUNTAIN INC — Director's Dealing 2021

Dec 20, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2021-12-16

Reporting Person: Evens Deirdre (EVP & GM, Rec and Info Mgmt NA)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-16	Common Stock, par value $.01 per share	M	39441	$29.27	Acquired	96644	Direct
2021-12-16	Common Stock, par value $.01 per share	S	39441	$50.475	Disposed	57203	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-16	Employee Stock Option (Right to Buy)	$29.27	M	39441	Disposed	2026-02-18	Common Stock (39441.0)	Direct

Footnotes

F1: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective August 27, 2021.

F2: The price reported in Column 4 is a weighted average price. These shares of Iron Mountain Incorporated common stock ("Common Stock") were sold in multiple transactions at prices ranging from $50.01 to $50.82, inclusive. The Reporting Person undertakes to provide Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (2).

F3: This stock option, representing a right to purchase a total of 39,441 shares, is fully vested.