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 * Duale Marc A   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) President, Iron Mountain Intl. (Last) (First) (Middle) THIRD FLOOR, COTTONS CENTRE, TOOLEY STREET 3. Date of Earliest Transaction (Month/Day/Year) 10/18/2012 (Street) LONDON, X0 SE1 2TT 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

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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

Employee Stock Option (Right to Buy)

$ 24.2666 (1)

10/18/2012

A(1)

11,042 (1)

(2)

03/01/2017

Common Stock

11,042 (1)

$ 0

103,021 (1)

D

Employee Stock Option (Right to Buy)

$ 24.2666 (1)

10/18/2012

A(1)

11,042 (1)

(3)

03/01/2019

Common Stock

11,042 (1)

$ 0

103,021 (1)

D

Employee Stock Option (Right to Buy)

$ 25.0925 (1)

10/18/2012

A(1)

2,971 (1)

(4)

03/11/2021

Common Stock

2,971 (1)

$ 0

27,720 (1)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Duale Marc A THIRD FLOOR, COTTONS CENTRE TOOLEY STREET LONDON, X0 SE1 2TT			President, Iron Mountain Intl.

Signatures

/s/ Ernest W. Cloutier, under Power of Attorney dated December 2, 2010, from Marc A. Duale		10/22/2012
**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 adjustments effective on October 18, 2012 approved by the Board of Directors of the issuer (the "Board") made in connection with a special dividend declared by the Board on October 11, 2012.
(2)	This option is fully vested.
(3)	This non-qualified stock option vests in equal annual installments on March 2 of each year until 2017.
(4)	This stock option vests in equal annual installments on March 11 of each year until 2014.

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