Michelle Vervais Altamura - 01 Oct 2024 Form 3 Insider Report for IRON MOUNTAIN INC (IRM)

Role: EVP, General Counsel, Sec.
Signature: /s/ Christine Zhang, under Power of Attorney dated September 17, 2024, from Michelle Altamura
Issuer symbol: IRM
Transactions as of: 01 Oct 2024
Net transactions value: $0
Form type: 3
Filing time: 03 Oct 2024, 16:11:50 UTC
Next filing: 03 Jan 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	IRM	Common Stock, par value $.01 per share						2,286	01 Oct 2024	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	IRM	Restricted Stock Units							01 Oct 2024	Common Stock	1,074		Direct	F1, F2
holding	IRM	Restricted Stock Units							01 Oct 2024	Common Stock	2,916		Direct	F2, F3
holding	IRM	Restricted Stock Units							01 Oct 2024	Common Stock	3,642		Direct	F2, F4
holding	IRM	Restricted Stock Units							01 Oct 2024	Common Stock	1,295		Direct	F2, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The restricted stock units ("RSUs"), representing a contingent right to receive a total of 3,221 shares of Common Stock, were granted to the Reporting Person on March 1, 2022 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.
F2	Each RSU represents a contingent right to receive one share of Common Stock.
F3	The RSUs, representing a contingent right to receive a total of 4,374 shares of Common Stock, were granted to the Reporting Person on March 1, 2023 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.
F4	The RSUs, representing a contingent right to receive a total of 3,642 shares of Common Stock, were granted to the Reporting Person on January 2, 2024 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.
F5	The RSUs, representing a contingent right to receive a total of 1,295 shares of Common Stock, were granted to the Reporting Person on March 1, 2024 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.