FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Day Roderick   2. Issuer Name and Ticker or Trading Symbol IRON MOUNTAIN INC [IRM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O IRON MOUNTAIN INCORPORATED,, ONE FEDERAL STREET 3. Date of Earliest Transaction (Month/Day/Year) 11/04/2014 (Street) BOSTON, MA 02110 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value $.01 per share 11/04/2014   A(1)   301 (1) A $ 0 (1) 4,464 (1) D   Common Stock, par value $.01 per share 11/05/2014   M   6,984 (2) A $ 0 11,448 D   Common Stock, par value $.01 per share 11/05/2014   F   3,282 D $ 36.45 8,166 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Underlying Securities (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)							(1)	(1)	Common Stock	(1)		689 (1) (3)	D
Restricted Stock Units	(1)							(1)	(1)	Common Stock	(1)		3,028 (1) (4)	D
Restricted Stock Units	(1)							(1)	(1)	Common Stock	(1)		1,134 (1) (5)	D
Restricted Stock Units	(1)	11/05/2014		M			6,984	(1)(6)	(1)(6)	Common Stock	6,984 (1)	$ 0	13,991 (1) (7)	D
Restricted Stock Units	(1)							(1)	(1)	Common Stock	(1)		2,474 (1) (8)	D
Restricted Stock Units	(1)							(1)	(1)	Common Stock	(1)		3,957 (1) (9)	D
Restricted Stock Units	(1)							(1)	(1)	Common Stock	(1)		9,380 (1) (10)	D
Performance Units	(1)							(1)	(1)	Common Stock	(1)		1,839 (1) (11)	D
Performance Units	(1)							(1)	(1)	Common Stock	(1)		1,190 (1) (12)	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Day Roderick C/O IRON MOUNTAIN INCORPORATED, ONE FEDERAL STREET BOSTON, MA 02110			Chief Financial Officer

Signatures

/s/ Sarah Cammarata, under Power of Attorney dated October 11, 2013, from Roderick Day		11/06/2014
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	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").
(2)	This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on November 5, 2013.
(3)	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").
(4)	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.
(5)	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.
(6)	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.
(7)	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.
(8)	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.
(9)	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.
(10)	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.
(11)	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.
(12)	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.

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