SEC Form 4 · accession 0001104659-17-029500

IRON MOUNTAIN INC · IRM

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Director

Period of report

May 1, 2017

Accepted (ET)

May 3, 2017 · 5:48 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001020569

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock, par value $.01 per share^F1	May 1, 2017	M	8,798	$22.429	A	160,392	D
Common Stock, par value $.01 per share	May 1, 2017	S	8,798	$34.967	D	151,594	D
Common Stock, par value $.01 per share^F2	holding	—	—		—	12,409	I	See footnote
Common Stock, par value $.01 per share^F3	holding	—	—		—	12,409	I	See footnote

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Employee Stock Option (Right to Buy)^F4	$22.429	May 1, 2017	M	8,798	D	—	May 23, 2017	Common Stock	8,798	0	D

F1This amount reflects the correction of a minor rounding error with respect to the number of shares of Iron Mountain Incorporated common stock ("Common Stock") acquired by the Reporting Person on November 4, 2014 as a result of the Reporting Person's receipt of his pro rata portion of the special distribution declared by the Board of Directors of Iron Mountain Incorporated on September 15, 2014 and paid on November 4, 2014 (the "Special Distribution").
F2Shares held by the Clarke H. Bailey GST Trust for the benefit of Trent S. Bailey.
F3Shares held by the Clarke H. Bailey GST Trust for the benefit of Turner H. Bailey.
F4This stock option, representing a right to purchase a total of 8,798 shares of Common Stock, is fully vested. The number of stock options granted includes previously reported adjustments effective on September 26, 2014 made in connection with the Special Distribution.