Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL 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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1. Name and Address of Reporting Person *
EBBIGHAUSEN HAROLD E
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)
Pres. N.A. Service Delivery
(Last)
(First)
(Middle)

6 EDMUND BRIGHAM WAY
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2006
(Street)


WESTBOROUGH, MA 01581
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(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 at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Stock, par value, $01.per share             23,869 (1) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 2270 (9-02)

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 at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to Buy) $ 18.5866 (2) 12/29/2006   J 5,379     (3) 04/26/2015 Common Stock
16,137
$ 0 16,137
D
 
Employee Stock Option (Right to Buy) $ 18.5866 (4) 12/29/2006   J 12,555     (5) 04/26/2015 Common Stock
37,665
$ 0 37,665
D
 
Employee Stock Option (Right to Buy) $ 28.9666 (6) 12/29/2006   J 5,753     (7) 12/07/2015 Common Stock
17,260
$ 0 17,260
D
 
Employee Stock Option (Right to Buy) $ 24.59 12/29/2006   J 1,355     (8) 05/23/2016 Common Stock
4,066
$ 0 4,066
D
 
Employee Stock Option (Right to Buy) $ 24.59 12/29/2006   J 12,200     (9) 05/23/2016 Common Stock
36,600
$ 0 36,600
D
 
Employee Stock Option (Right to Buy) $ 13.8111 (10) 12/29/2006   J 7,241     (11) 03/20/2012 Common Stock
21,723
$ 0 21,723
D
 
Employee Stock Option (Right to Buy) $ 13.8111 (12) 12/29/2006   J 4,836     (13) 03/20/2012 Common Stock
14,509
$ 0 14,509
D
 
Employee Stock Option (Right to Buy) $ 9.9629 (14) 12/29/2006   J 14,057     (15) 09/12/2009 Common Stock
42,172
$ 0 42,172
D
 
Employee Stock Option (Right to Buy) $ 6.2716 12/29/2006   J 3,721     (16) 07/30/2007 Common Stock
11,163
$ 0 11,163
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
EBBIGHAUSEN HAROLD E
6 EDMUND BRIGHAM WAY
WESTBOROUGH, MA 01581
      Pres. N.A. Service Delivery  

Signatures

Harold E. Ebbighausen 02/12/2007
**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) The Common Stock of Iron Mountain Incorporated split, December 29, 2006 3-for-2 to record holders as of December 18, 2006, resulting in the reporting person's acquisition of 7,856 shares of Common Stock.
(2) Due to software limitations, the post stock split exercise price should be $18.5866667.
(3) This stock option was previously reported as covering 10,758 shares at an exercise price of $27.88 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are no shares that are vested.
(4) Due to software limitations, the post stock split exercise price should be $18.5866667.
(5) This stock option was previously reported as covering 25,110 shares at an exercise price of $27.88 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are 10,759 shares that are vested.
(6) Due to software limitations, the post stock split exercise price should be $28.9666667.
(7) This stock option was previously reported as covering 11,507 shares at an exercise price of $43.45 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are 3,451 shares that are vested.
(8) This stock option was previously reported as covering 2,711 shares at an exercise price of $36.8850 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are no shares that are vested.
(9) This stock option was previously reported as covering 24,400 shares at an exercise price of $36.8850 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are no shares that are vested.
(10) Due to software limitations, the post stock split exercise price should be $13.8111333.
(11) This stock option was previously reported as covering 14,482 shares at an exercise price of $20.7167 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are 14,482 shares that are vested.
(12) Due to software limitations, the post stock split exercise price should be $13.8111333.
(13) This stock option was previously reported as covering 9,673 shares at an exercise price of $20.7167 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. There are 14,501 shares that are vested.
(14) Due to software limitations, the post stock split exercise price should be $9.9629333.
(15) This stock option was previously reported as covering 28,115 shares at an exercise price of $14.9444 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. All shares are vested.
(16) This stock option was previously reported as covering 7,442 shares at an exercise price of $9.4074 per share, but adjusted to reflect a 3-for-2 stock split effective December 29, 2006. All shares are vested.

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