William Meaney - Mar 9, 2022 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Role: President and CEO, Director
Signature: /s/ Elizabeth Tammaro, under Power of Attorney dated May 26, 2016, from William Meaney
Stock symbol: IRM
Transactions as of: Mar 9, 2022
Transactions value $: -$76,510
Form type: 4
Date filed: 3/11/2022, 03:37 PM
Previous filing: Mar 9, 2022
Next filing: May 20, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IRM	Common Stock, par value $.01 per share	Options Exercise	$0	+2.12K	+0.72%	$0.00	297K	Mar 9, 2022	Direct	F1
transaction	IRM	Common Stock, par value $.01 per share	Tax liability	-$45.4K	-888	-0.3%	$51.09	296K	Mar 9, 2022	Direct
transaction	IRM	Common Stock, par value $.01 per share	Sale	-$31.1K	-614	-0.21%	$50.72	296K	Mar 10, 2022	Direct	F2

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
transaction	IRM	Restricted Stock Units	Options Exercise	$0	-2.12K	-50%	$0.00	2.12K	Mar 9, 2022	Common Stock	2.12K		Direct	F3, F4

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

Explanation of Responses:

Id	Content
F1	This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on March 9, 2020.
F2	This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of March 19,2021.
F3	Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").
F4	The RSUs, representing a contingent right to receive a total of 6,345 shares of Common Stock, were granted to the Reporting Person on March 9, 2020 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.