IRON MOUNTAIN INC — Director's Dealing 2016

Jun 2, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2016-05-31

Reporting Person: Meaney William L (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-31	Common Stock, par value $.01 per share	S	36986	$36.54	Disposed	36987	Direct
2016-05-31	Common Stock, par value $.01 per share	M	278192	$29.989	Acquired	315179	Direct
2016-05-31	Common Stock, par value $.01 per share	S	278192	$36.54	Disposed	36987	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-05-31	Employee Stock Option (Right to Buy)	$29.989	M	278192	Disposed	2023-01-06	Common Stock (278192)	Direct

Footnotes

F1: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of April 29, 2016.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.36 to $36.86, inclusive. The Reporting Person undertakes to provide to Iron Mountain Incorporated (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2).

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.35 to $36.86, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3).

F4: This stock option, representing a right to purchase a total of 278,192 shares, is fully vested. The number of stock options granted includes previously reported adjustments effective on September 26, 2014 made in connection with the special distribution declared by the Board of Directors of the Company on September 15, 2014 and paid on November 4, 2014.