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 *
KENNY JOHN F JR
  2. Issuer Name and Ticker or Trading Symbol
IRON MOUNTAIN INC/PA [IRM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Exec VP & CFO
(Last)
(First)
(Middle)
8 BREWER WAY
3. Date of Earliest Transaction (Month/Day/Year)
03/10/2005
(Street)

HINGHAM, MA 02043
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 03/10/2005   M   140,000 A $ 9.4074 214,154 (1) D  
Common Stock, par value, $.01 per share 03/10/2005   F   4,977 D $ 30.8 209,177 D  
Common Stock, par value, $.01 per share 03/10/2005   M   7,106 A $ 4.778 216,283 D  
Common Stock, par value, $.01 per share 03/10/2005   M   26,200 A $ 4.5556 242,483 D  
Common Stock, par value, $.01 per share 03/10/2005   S   400 D $ 31.02 242,083 D  
Common Stock, par value, $.01 per share 03/10/2005   S   900 D $ 31.01 241,183 D  
Common Stock, par value, $.01 per share 03/10/2005   S   100 D $ 31 241,083 D  
Common Stock, par value, $.01 per share 03/10/2005   S   800 D $ 30.98 240,283 D  
Common Stock, par value, $.01 per share 03/10/2005   S   900 D $ 30.97 239,383 D  
Common Stock, par value, $.01 per share 03/10/2005   S   600 D $ 30.96 238,783 D  
Common Stock, par value, $.01 per share 03/10/2005   S   900 D $ 30.95 237,883 D  
Common Stock, par value, $.01 per share 03/10/2005   S   1,300 D $ 30.94 236,583 D  
Common Stock, par value, $.01 per share 03/10/2005   S   100 D $ 30.93 236,483 D  
Common Stock, par value, $.01 per share 03/10/2005   S   700 D $ 30.92 235,783 D  
Common Stock, par value, $.01 per share 03/10/2005   S   200 D $ 30.91 235,583 D  
Common Stock, par value, $.01 per share 03/10/2005   S   800 D $ 30.9 234,783 D  
Common Stock, par value, $.01 per share 03/10/2005   S   500 D $ 30.89 234,283 D  
Common Stock, par value, $.01 per share 03/10/2005   S   600 D $ 30.88 233,683 D  
Common Stock, par value, $.01 per share 03/10/2005   S   300 D $ 30.87 233,383 D  
Common Stock, par value, $.01 per share 03/10/2005   S   2,000 D $ 30.86 231,383 D  
Common Stock, par value, $.01 per share 03/10/2005   S   4,500 D $ 30.84 222,283 D  
Common Stock, par value, $.01 per share 03/10/2005   S   900 D $ 30.83 221,383 D  
Common Stock, par value, $.01 per share 03/10/2005   S   1,800 D $ 30.81 218,483 D  
Common Stock, par value, $.01 per share 03/10/2005   S   8,800 D $ 30.8 209,683 D  
Common Stock, par value, $.01 per share 03/10/2005   S   3,200 D $ 30.79 206,483 D  
Common Stock, par value, $.01 per share 03/10/2005   S   1,200 D $ 30.78 205,283 D  
Common Stock, par value, $.01 per share 03/10/2005   S   400 D $ 30.77 204,883 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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) $ 9.4074 03/10/2005   M     140,000 07/31/2002 07/30/2007 Common Stock 140,000 $ 0 136,103 D  
Employee Stock Option (Right to Buy) $ 4.778 03/11/2005   M     7,106 02/06/2001 02/05/2006 Common Stock 7,106 $ 0 0 D  
Employee Stock Option (Right to Buy) $ 4.556 03/11/2005   M     26,200 04/08/2001 04/07/2006 Common Stock 26,200 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KENNY JOHN F JR
8 BREWER WAY
HINGHAM, MA 02043
  X     Exec VP & CFO  

Signatures

 /s/ Garry B. Watzke, attorney-in-fact   03/14/2005
**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) Reflects correction in allocation between directly and indirectly owned shares arising from incorrect attribution of gifts in prior years. The reporting person holds a total of 24,514 shares indirectly in the names of his wife and son.

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