IRON MOUNTAIN INC — Director's Dealing 2016

Apr 20, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2016-04-18

Reporting Person: Duale Marc A (President Iron Mountain Int'l)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-04-18	Common Stock, par value $.01 per share	S	12501	$35.00	Disposed	51211	Direct
2016-04-18	Common Stock, par value $.01 per share	S	400	$35.01	Disposed	50811	Direct
2016-04-18	Common Stock, par value $.01 per share	S	10800	$35.02	Disposed	40011	Direct
2016-04-18	Common Stock, par value $.01 per share	M	8756	$24.804	Acquired	48767	Direct
2016-04-18	Common Stock, par value $.01 per share	S	8756	$35.00	Disposed	40011	Direct
2016-04-18	Common Stock, par value $.01 per share	M	11345	$22.036	Acquired	51356	Direct
2016-04-18	Common Stock, par value $.01 per share	S	11345	$35.00	Disposed	40011	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-04-18	Employee Stock Option (Right to Buy)	$24.804	M	8756	Disposed	2024-02-13	Common Stock (8756)	Direct
2016-04-18	Employee Stock Option (Right to Buy)	$22.036	M	11345	Disposed	2019-03-01	Common Stock (11345)	Direct

Footnotes

F1: This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of December 1, 2015.

F2: This stock option, representing a right to purchase a total of 26,296 shares, vests in substantially equal annual installments on February 13 of each year until 2017. 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 Iron Mountain Incorporated on September 15, 2014 and paid on November 4, 2014 (the "Special Distribution").

F3: This stock option, representing a right to purchase a total of 34,037 shares, vests in substantially equal annual installments on March 2 of each year until 2017. The number of stock options granted includes previously reported adjustments effective on September 26, 2014 made in connection with the Special Distribution.