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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(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) SCHOONER CAPITAL, 745 ATLANTIC AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 05/20/2009 (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 05/20/2009   S   25,356 D $ 28.2556 (1) 0 I See Footnote (2) Common Stock, par value, $.01 per share               6,701,361 I See Footnote (3) Common Stock, par value, $.01 per share               148,214 I See Footnote (4) Common Stock, par value, $.01 per share               336,616 I See Footnote (5) Common Stock, par value, $.01 per share               9,234,256 I See Footnote (6) Common Stock, par value, $.01 per share               38,371 I See Footnote (7)

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 1474 (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 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

Reporting Owners

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

Signatures

/s/ Ernest W. Cloutier, under Power of Attorney dated June 5, 2008 from Vincent J. Ryan		05/22/2009
**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)	Price reflected is the weighted-average sale price for shares sold. The range of sale prices for the transactions reported was $28.10 to $28.36 per share. The Reporting Person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, Iron Mountain Incorporated, or a security holder of Iron Mountain Incorporated, full information regarding the number of shares sold at each separate price.
(2)	Shares held in the Carla E. Meyer Three-Year Retained Annuity Trust, dated August 4, 2003.
(3)	Shares held in the Vincent J. Ryan Revocable Trust, dated December 24, 1987.
(4)	Shares held in the Carla E. Meyer Three-Year Retained Annuity Trust, dated September 13, 2006.
(5)	Shares held in the Carla E. Meyer Three-Year Retained Annuity Trust, dated October 29, 2008.
(6)	Shares held by Schooner Capital Corporation.
(7)	Shares held by Mr. Ryan's son, Nicholas Ryan. Mr. Ryan disclaims beneficial ownership of these shares.

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

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.