Michelle Altamura - Jan 2, 2025 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Signature
/s/ Christine Zhang, under Power of Attorney dated September 17, 2024, from Michelle Altamura
Stock symbol
IRM
Transactions as of
Jan 2, 2025
Transactions value $
-$49,123
Form type
4
Date filed
1/3/2025, 04:35 PM
Previous filing
Oct 3, 2024
Next filing
Mar 4, 2025

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 +1.21K +53.11% $0.00 3.5K Jan 2, 2025 Direct F1
transaction IRM Common Stock, par value $.01 per share Tax liability -$49.1K -469 -13.4% $104.74 3.03K Jan 2, 2025 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
transaction IRM Restricted Stock Units Options Exercise $0 -1.21K -33.33% $0.00 2.43K Jan 2, 2025 Common Stock 1.21K Direct F2, F3
* 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 January 2, 2024.
F2 Each RSU represents a contingent right to receive one share of Common Stock.
F3 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.