Ownership Submission
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 *
RYAN VINCENT J
   2. Issuer Name and Ticker or Trading Symbol
IRON MOUNTAIN INC [IRM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
745 ATLANTIC AVENUE		 3. Date of Earliest Transaction (Month/Day/Year)
05/24/2007
(Street)

BOSTON, MA 02111		 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               7,061,015 I Shares held as part of the Vincent J. Ryan Revocable Trust, dtd 12/24/87
Common Stock, par value, $.01 per share               25,356 I Shares held in the Carla E. Meyer Three-Year Annuity Trust, dtd August 4, 2003 (Meyer 2003 Trust)
Common Stock, par value, $.01 per share               38,371 (1) I Shares held by a member of Mr. Ryan's household
Common Stock, par value, $.01 per share               484,830 I Shares held in the Carla E. Meyer Three-Year Retained Annuity Trust dtd 9/13/06 (Meyer 2006 Trust)
Common Stock, par value, $.01 per share               9,234,256 I Shares held by Schooner Capital Trust (Schooner Trust)
Common Stock, par value, $.01 per share               92,739 (2) I Shares held by the Schooner Foundation
Common Stock, par value, $.01 per share               20,250 I Shared held in the name of Citibank, South Dakota, Trustee of the Ryan 1998 Issue Trust

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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
Stock Option (Right to Buy) $ 27.665 05/24/2007   A   7,134   05/24/2008(3) 05/24/2017 Common Stock 7,134 $ 0 7,134 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RYAN VINCENT J
745 ATLANTIC AVENUE
BOSTON, MA 02111		   X      

Signatures

 Clare A. Dever, under Power of Attorney dated September 3, 2002 from Vincent J. Ryan.   05/29/2007
**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) These shares are held by Mr. Ryan's son, Nicholas. Mr. Ryan disclaims beneficial ownership to these shares.
(2) This reflects a gift of 599 shares on January 3, 2007 and a gift of 299 shares on Janaury 5, 2007.
(3) These shares will vest 100% on the first anniversary date.

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