SEC FORM 3

SEC Form 3

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
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Day Roderick

(Last)

(First)

(Middle)

C/O IRON MOUNTAIN INCORPORATED

745 ATLANTIC AVENUE

(Street)

BOSTON

02111

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
11/01/2013

3. Issuer Name and Ticker or Trading Symbol
IRON MOUNTAIN INC [ IRM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Financial Officer

5. If Amendment, Date of 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

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 $.01 per share	1,480	D

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: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Performance Units	⁽¹⁾	⁽¹⁾	Common Stock	964	⁽²⁾	D
Performance Units	⁽³⁾	⁽³⁾	Common Stock	1,701	⁽²⁾	D
Restricted Stock Units	03/11/2014	03/11/2014	Common Stock	147	⁽⁴⁾	D
Restricted Stock Units	⁽⁵⁾	⁽⁵⁾	Common Stock	1,271	⁽⁴⁾	D
Restricted Stock Units	⁽⁶⁾	⁽⁶⁾	Common Stock	5,593	⁽⁴⁾	D
Restricted Stock Units	⁽⁷⁾	⁽⁷⁾	Common Stock	1,572	⁽⁴⁾	D
Employee Stock Option (Right to Buy)	⁽⁸⁾	09/01/2018	Common Stock	842	$23.8425	D
Employee Stock Option (Right to Buy)	⁽⁹⁾	06/04/2019	Common Stock	6,323	$25.3112	D
Employee Stock Option (Right to Buy)	⁽¹⁰⁾	12/10/2019	Common Stock	14,256	$21.0436	D
Employee Stock Option (Right to Buy)	⁽¹¹⁾	06/03/2020	Common Stock	5,495	$21.8337	D
Employee Stock Option (Right to Buy)	03/11/2014	03/11/2021	Common Stock	1,149	$25.0925	D

Explanation of Responses:

1. The performance units ("PUs") will fully vest on March 11, 2014, subject to certain exceptions, if the Reporting Person is, as of that date, continuing to perform services for Iron Mountain Incorporated.

2. Each PU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

3. The PUs will fully vest on March 9, 2015, subject to certain exceptions, if the Reporting Person is, as of that date, continuing to perform services for Iron Mountain Incorporated.

4. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Common Stock.

5. The RSUs vest in two substantially equal installments on March 9, 2014 and March 9, 2015.

6. The RSUs vest in two substantially equal installments on June 13, 2014 and June 13, 2015.

7. The RSUs were granted to the Reporting Person on March 15, 2013 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

8. This option is fully vested.

9. 3,160 shares of this option have vested. The remaining shares vest on June 4, 2014.

10. This option vests in two substantially equal annual installments on December 10, 2013 and December 10, 2014.

11. 3,294 shares of this option have vested. The remaining shares vest in two substantially equal installments on June 3, 2014 and June 3, 2015.

	/s/ Sarah Cammarata, under Power of Attorney dated October 11, 2013, from Roderick Day	11/07/2013
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.