IRON MOUNTAIN INC — Director's Dealing 2014

Nov 6, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2014-11-04

Reporting Person: Day Roderick (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-11-04	Common Stock, par value $.01 per share	A	301	—	Acquired	4464	Direct
2014-11-05	Common Stock, par value $.01 per share	M	6984	—	Acquired	11448	Direct
2014-11-05	Common Stock, par value $.01 per share	F	3282	$36.45	Disposed	8166	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-11-05	Restricted Stock Units	$	M	6984	Disposed		Common Stock (6984)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock ()	689	Direct
Restricted Stock Units	$		Common Stock ()	3028	Direct
Restricted Stock Units	$		Common Stock ()	1134	Direct
Restricted Stock Units	$		Common Stock ()	2474	Direct
Restricted Stock Units	$		Common Stock ()	3957	Direct
Restricted Stock Units	$		Common Stock ()	9380	Direct
Performance Units	$		Common Stock ()	1839	Direct
Performance Units	$		Common Stock ()	1190	Direct

Footnotes

F1: This report reflects shares received by the Reporting Person as a result of the Reporting Person's receipt of his pro rata portion of a special distribution declared by the Board of Directors of the issuer on September 15, 2014 and paid on November 4, 2014 (the "Special Distribution").

F2: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on November 5, 2013.

F3: Includes 51 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on March 9, 2012. The RSUs vest in three substantially equal annual installments beginning on March 9, 2013, which was the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F4: Includes 227 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on June 13, 2012. The RSUs vest in three substantially equal annual installments beginning on June 13, 2013, which was the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.

F5: Includes 85 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on March 15, 2013. The RSUs vest in three substantially equal annual installments beginning on March 15, 2014, which was the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.

F6: The RSUs, representing a contingent right to receive a total of 20,975 shares of Common Stock, were granted to the Reporting Person on November 5, 2013 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F7: Includes 1,577 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on November 5, 2013. The RSUs vest in three substantially equal annual installments beginning on November 5, 2014, which was the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.

F8: Includes 186 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on February 13, 2014. The RSUs vest in two substantially equal annual installments beginning on February 13, 2015, which will be the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.

F9: Includes 297 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on February 13, 2014. The RSUs vest in three substantially equal annual installments beginning on February 13, 2015, which will be the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.

F10: Includes 705 previously unreported unvested RSUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported RSU grant received by the Reporting Person on March 14, 2014. The RSUs vest in three substantially equal annual installments beginning on March 14, 2015, which will be the first anniversary of the date of grant. Each RSU represents a contingent right to receive one share of Common Stock.

F11: Includes 138 previously unreported unvested performance units ("PUs") allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported PUs granted to the Reporting Person on March 9, 2012 and subsequently awarded by the Compensation Committee of the Board of Directors of the issuer (the "Compensation Committee") on March 13, 2013. Each PU represents a contingent right to receive one share of Common Stock. The PUs fully vest on March 9, 2015, subject to certain exceptions, if the Reporting Person is, as of that date, continuing to perform services for the issuer.

F12: Includes 89 previously unreported unvested PUs allocated on November 4, 2014 in connection with the Special Distribution and associated with the previously reported PUs granted to the Reporting Person on March 15, 2013 and subsequently awarded by the Compensation Committee on March 10, 2014. Each PU represents a contingent right to receive one share of Common Stock. The PUs fully vest on March 15, 2016, subject to certain exceptions, if the Reporting Person is, as of that date, continuing to perform services for the issuer.