Edgar Filing: IRON MOUNTAIN INC/PA

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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3235-0287

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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)
CFO & Executive VP

(Last)

(First)

(Middle)

8 BREWER WAY

3. Date of Earliest Transaction (Month/Day/Year)
12/01/2004

(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)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock, par value, $.01 per share	12/01/2004		M		80,000	A	$ 9.4074	137,168	D
Common Stock, par value, $.01 per share	12/01/2004		S		700	D	$ 30.29	136,468	D
Common Stock, par value, $.01 per share	12/01/2004		S		3,900	D	$ 30.28	132,568	D
Common Stock par value, $.01 per share	12/01/2004		S		7,900	D	$ 30.27	124,668	D
Common Stock, par value, $.01 per share	12/01/2004		S		900	D	$ 30.25	123,768	D
Common Stock, par value, $.01 per share	12/01/2004		S		600	D	$ 30.24	123,168	D
Common Stock, par value, $.01 per share	12/01/2004		S		800	D	$ 30.21	122,368	D
Common Stock, par value, $.01 per share	12/01/2004		S		6,400	D	$ 30.2	115,968	D
Common Stock, par value, $.01 per share	12/01/2004		S		100	D	$ 30.18	115,868	D
Common Stock, par value, $.01 per share	12/01/2004		S		8,100	D	$ 30.17	107,768	D
Common Stock, par value, $.01 per share	12/01/2004		S		600	D	$ 30.16	107,168	D
Common Stock, par value, $.01 per share	12/01/2004		S		1,200	D	$ 30.14	105,968	D
Common Stock, par value, $.01 per share	12/01/2004		S		10,400	D	$ 30.13	95,568	D
Common Stock, par value, $.01 per share	12/01/2004		S		1,100	D	$ 30.03	94,468	D
Common Stock, par value, $.01 per share	12/01/2004		S		200	D	$ 30.02	94,268	D
Common Stock, par value, $.01 per share	12/01/2004		S		3,400	D	$ 30.01	90,868	D
Common Stock, par value, $.01 per share	12/01/2004		S		33,700	D	$ 30	57,168	D
Common Stock, par value, $.01 per share	12/01/2004		G	V	100	D	$ 0	57,068	D
Common Stock, par value, $.01 per share	12/01/2004		M		18,916 ⁽¹⁾	A	$ 4.7778	75,984	D
Common Stock, par value, $.01 per share	12/01/2004		F		3,000	D	$ 30.125	72,984 ⁽²⁾	D
Common Stock, par value, $.01 per share								25,683 ⁽³⁾	I	Shares held in name of wife and minor son

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

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (Right to Buy)

$ 9.4074

12/01/2004

80,000 ⁽⁴⁾

07/31/2002

07/30/2007

Common Stock

80,000

$ 0

Employee Stock Option (Right to Buy)

$ 4.7778

12/01/2004

18,916

02/06/2001

02/05/2006

Common Stock

18,916

$ 0

Reporting Owners

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

Signatures

John F. Kenny, Jr.		12/03/2004
^**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)	Mr. Kenny exercised 18,916 shares of the ISO stock option granted to him on 2/6/96. There are 7,106 shares remaining on this stock option. As a result of the stock for stock (swap), a cash amount representing the difference between the fair market value of the 3,000 shares tendered and the exercise price of the 18,916 shares was also paid.
(2)	Mr. Kenny holds 72,984 shares in direct ownership of Iron Mountain Common Stock.
(3)	Mr. Kenny holds 25,188 shares indirectly in the name of his wife and 495 shares held in the name of his minor son.
(4)	Mr. Kenny exercised 80,000 shares of the non-qualified stock option granted to him on 7/31/97. There are 276,103 shares remaining on this stock option.

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