Daniel Borges - 09 Sep 2021 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Role: SVP & Chief Accounting Officer
Signature: /s/ Elizabeth Tammaro, under Power of Attorney dated October 23, 2017 from Daniel Borges
Issuer symbol: IRM
Transactions as of: 09 Sep 2021
Net transactions value: -$23,213
Form type: 4
Filing time: 10 Sep 2021, 17:19:24 UTC
Previous filing: 30 Jun 2021
Next filing: 24 Feb 2022
SEC: View on sec.gov

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	$66,439	+1,860		$35.72	1,860	09 Sep 2021	Direct	F1
transaction	IRM	Common Stock, par value $.01 per share	Sale	$89,652	-1,860	-100%	$48.20	0	09 Sep 2021	Direct	F1

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	Employee Stock Option (Right to Buy)	Options Exercise	$0	-1,860	-67%	$0.000000	930	09 Sep 2021	Common Stock	1,860	$35.72	Direct	F2

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

Explanation of Responses:

Id	Content
F1	This transaction was effected pursuant to a 10b5-1 trading plan which was approved and became effective as of August 10, 2021.
F2	This stock option, representing a right to purchase a total of 2,790 shares, was granted to the Reporting Person on February 20, 2019 and vests in three substantially equal annual installments beginning on the first anniversary of the grant date.