IRON MOUNTAIN INC — Director's Dealing 2020

Feb 20, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2020-02-18

Reporting Person: MARSON DEBORAH (EVP, General Counsel, Sec.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-18	Common Stock, par value $.01 per share	M	1219	—	Acquired	32550	Direct
2020-02-18	Common Stock, par value $.01 per share	F	357	$34.06	Disposed	32193	Direct
2020-02-18	Common Stock, par value $.01 per share	M	1481	—	Acquired	33674	Direct
2020-02-18	Common Stock, par value $.01 per share	F	434	$34.06	Disposed	33240	Direct
2020-02-18	Common Stock, par value $.01 per share	M	5939	—	Acquired	39179	Direct
2020-02-18	Common Stock, par value $.01 per share	F	1873	$34.06	Disposed	37306	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-18	Restricted Stock Units	$	M	1219	Disposed		Common Stock (1219.0)	Direct
2020-02-18	Restricted Stock Units	$	M	1481	Disposed		Common Stock (1481.0)	Direct
2020-02-18	Performance Units	$	M	5939	Disposed		Common Stock (5939.0)	Direct

Footnotes

F1: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on February 16, 2017.

F2: This acquisition is reported to reflect the partial vesting of RSUs previously granted to the Reporting Person on February 15, 2018.

F3: This acquisition is reported to reflect the full vesting of performance units ("PUs") previously granted to the Reporting Person on February 16, 2017. Effective February 13, 2020, 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 in full on February 16, 2020.

F4: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F5: The RSUs, representing a contingent right to receive a total of 3,648 shares of Common Stock, were granted to the Reporting Person on February 16, 2017 and have vested in full.

F6: The RSUs, representing a contingent right to receive a total of 4,448 shares of Common Stock, were granted to the Reporting Person on February 15, 2018 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.

F7: Each PU represents a contingent right to receive one share of Common Stock.

F8: The PUs were initially granted to the Reporting Person on February 16, 2017. Effective February 13, 2020, the Compensation Committee determined the actual award of PUs under the grant after completion of the relevant performance period, and the PUs vested in full on February 16, 2020.