FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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 *   EBBIGHAUSEN HAROLD E 2. Date of Event Requiring Statement (Month/Day/Year) 05/05/2008 3. Issuer Name and Ticker or Trading Symbol IRON MOUNTAIN INC [IRM] (Last) (First) (Middle) 6 EDMUND BRIGHAM WAY 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President, Americas 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) WESTBOROUGH, MA 01581 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock, par value, $0.01 per share 37,818 D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	  (1)	03/20/2012	Common Stock	7,249	$ 13.8111	D	Â
Employee Stock Option (right to buy)	  (2)	04/26/2015	Common Stock	43,043	$ 18.5867	D	Â
Employee Stock Option (right to buy)	  (3)	12/07/2015	Common Stock	17,260	$ 28.9667	D	Â
Employee Stock Option (right to buy)	05/24/2011	05/23/2016	Common Stock	4,066	$ 24.59	D	Â
Employee Stock Option (right to buy)	  (4)	05/23/2016	Common Stock	36,600	$ 24.59	D	Â
Employee Stock Option (right to buy)	  (5)	03/02/2017	Common Stock	64,386	$ 27.18	D	Â
Employee Stock Option (right to buy)	  (6)	03/02/2019	Common Stock	64,385	$ 27.18	D	Â
Employee Stock Option (right to buy)	  (7)	04/28/2008	Common Stock	72,111	$ 27.735	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
EBBIGHAUSEN HAROLD E 6 EDMUND BRIGHAM WAY WESTBOROUGH, MA 01581	Â	Â	  President, Americas	Â

Signatures

/s/ Harold E. Ebbinghausen		05/15/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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 option grant vested from 2003 through 2007.
(2)	21,520 shares of this option grant have vested. The remaining shares vest as follows: 10,761 shares on 4/27/2009 and 10,762 shares 4/27/2010.
(3)	6,903 shares of this option grant have vested. The remaining shares vest as follows: 3,453 shares on 12/8/2008, 3,451 shares on 12/8/2009 and 3,453 shares on 12/8/2010.
(4)	8,133 shares of this option grant have vested. The remaining shares vest as follows: 24,399 on 5/24/2010 and 4,068 shares on 5/24/2011.
(5)	This option grant vests 20% annually for 5 years on the anniversary of the grant. The first 20%, 12,877 shares, vested on 3/2/2008.
(6)	This option grant vests 10% annually for 10 years on the anniversary of the grant. The first 10%, 6,438 shares, vested on 3/2/2008.
(7)	This option grant vests 20% annually for 5 years on the anniversary of the grant, beginning 4/28/2009.
  Remarks: The reporting person was previously an "officer" for purposes of Section 16 of the Securities Exchange Act of 1934 through June 2007.  From July 2007 through May 4, 2008, the reporting person was not an "officer". Due to a change of position and responsibilities on May 5, 2008, the reporting person again became an "officer" on such date.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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