Iron Mountain (IRM) Form 3 IRON MOUNTAIN / Greg W McIntosh ownership change

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^*

McIntosh Greg W

(Last) (First) (Middle)

C/O IRON MOUNTAIN INCORPORATED

ONE FEDERAL STREET

(Street)

BOSTON MA 02110

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/01/2021

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)
EVP, GM, Global RM

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	5,842	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)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	(1)	Common Stock	2,275	(2)	D
Restricted Stock Units	(3)	(3)	Common Stock	3,550	(2)	D
Restricted Stock Units	(4)	(4)	Common Stock	11,805	(2)	D
Employee Stock Option (Right to Buy)	(5)	02/19/2025	Common Stock	3,923	38.83	D
Employee Stock Option (Right to Buy)	(6)	03/09/2026	Common Stock	6,744	31.46	D
Employee Stock Option (Right to Buy)	(7)	02/16/2027	Common Stock	6,839	37	D
Employee Stock Option (Right to Buy)	(8)	02/15/2028	Common Stock	4,009	33.72	D
Employee Stock Option (Right to Buy)	(9)	03/25/2029	Common Stock	13,442	35.17	D

Explanation of Responses:

1. The restricted stock units ("RSUs"), representing a contingent right to receive a total of 6,822 shares of Iron Mountain Incorporated common stock ("Common Stock"), were granted to the Reporting Person on March 25, 2019. As of October 1, 2021, 4,547 of the granted RSUs have vested, and the balance of the RSUs vest on March 25, 2022.

2. Each RSU represents a contingent right to receive one share of Common Stock.

3. The RSUs, representing a contingent right to receive a total of 5,325 shares of Common Stock, were granted to the Reporting Person on February 19, 2020. As of October 1, 2021, 1,775 of the granted RSUs have vested, and the balance of the RSUs vest in two substantially equal annual installments beginning on the second anniversary of the grant date.

4. The RSUs, representing a contingent right to receive a total of 11,805 shares of Common Stock, were granted to the Reporting Person on March 1, 2021. As of October 1, 2021, 0 granted RSUs have vested. The RSUs vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

5. This stock option was granted on February 19, 2015. As of October 1, 2021, this stock option is fully vested.

6. This stock option was granted on March 9, 2016. As of October 1, 2021, this stock option is fully vested.

7. This stock option was granted on February 16, 2017. As of October 1, 2021, this stock option is fully vested.

8. This stock option was granted on February 15, 2018. As of October 1, 2021, this stock option is fully vested.

9. This stock option was granted on March 25, 2019. As of October 1, 2021, this stock option has vested with respect to 8,961 shares. The remaining shares vest on the third anniversary of the grant date.

Remarks:

	/s/ Elizabeth Tammaro, under Power of Attorney dated February 26, 2019 from Greg McIntosh	10/08/2021
	** 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).
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