Iron Mountain (IRM) Form 4/A IRON MOUNTAIN / Patrick J Keddy ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Keddy Patrick J

(Last) (First) (Middle)

C/O IRON MOUNTAIN INCORPORATED

ONE FEDERAL STREET

(Street)

BOSTON MA 02110

(City) (State) (Zip)

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

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
EVP, GM, N. America, W.Europe

3. Date of Earliest Transaction (Month/Day/Year)
02/16/2018

4. If Amendment, Date of Original Filed (Month/Day/Year)
02/22/2018

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 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	02/20/2018		M		1,005(1)	A	$0	14,738	D
Common Stock, par value $.01 per share	02/20/2018		F		471(2)	D	$32.12	14,267	D
Common Stock, par value $.01 per share	02/20/2018		M		4,853(3)	A	$0	19,120	D
Common Stock, par value $.01 per share	02/20/2018		F		2,280(2)	D	$32.12	16,840	D
Common Stock, par value $.01 per share	02/20/2018		M		861(4)	A	$0	17,701	D
Common Stock, par value $.01 per share	02/20/2018		F		404(2)	D	$32.12	17,297	D
Common Stock, par value $.01 per share	02/20/2018		M		2,560(5)	A	$0	19,857	D
Common Stock, par value $.01 per share	02/20/2018		F		1,203(2)	D	$32.12	18,654	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. This transaction is being reported to reflect the full vesting of performance units ("PUs") initially granted to the Reporting Person on February 19, 2015. Effective February 16, 2018, the Compensation Committee of Iron Mountain Incorporated's Board of Directors (the "Compensation Committee") determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs vested on February 20, 2018.

2. This amendment is being filed to correct a clerical error in the number of shares withheld to satisfy the Reporting Person's tax obligation with respect to the vesting of PUs and restricted stock units ("RSUs").

3. This transaction is being reported to reflect the full vesting of PUs initially granted to the Reporting Person on May 27, 2015. Effective February 16, 2018, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs vested on February 20, 2018.

4. This acquisition is reported to reflect the partial vesting of RSUs previously granted to the Reporting Person on February 19, 2015.

5. This acquisition is reported to reflect the partial vesting of RSUs previously granted to the Reporting Person on February 18, 2016.

	/s/ Elizabeth Tammaro, under Power of Attorney dated May 26, 2016, from Patrick Keddy	05/22/2018
	** 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 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).
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