IRON MOUNTAIN INC — Director's Dealing 2017

Oct 27, 2017

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2017-10-17

Reporting Person: Borges Daniel (VP & Chief Accounting Officer)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $.01 per share	1576	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock (559)		Direct
Restricted Stock Units	$		Common Stock (1696)		Direct
Restricted Stock Units	$		Common Stock (2151)		Direct

Footnotes

F1: The restricted stock units ("RSUs"), representing a contingent right to receive a total of 1,673 shares of Iron Mountain Incorporated common stock ("Common Stock"), were granted to the Reporting Person on February 19, 2015. As of October 17, 2017, 1,114 of the granted RSUs have vested, and the balance of the RSUs vest on February 19, 2018.

F2: Each RSU represents a contingent right to receive one share of Common Stock.

F3: The RSUs, representing a contingent right to receive a total of 2,542 shares of Common Stock, were granted to the Reporting Person on March 9, 2016. As of October 17, 2017, 846 of the granted RSUs have vested, and the balance of the RSUs vest in two substantially equal annual installments beginning on the second anniversary of the grant date.

F4: The RSUs, representing a contingent right to receive a total of 2,151 shares of Common Stock, were granted to the Reporting Person on February 16, 2017 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.