Jennifer Allerton - 29 May 2025 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Role
Director
Signature
/s/ Keely Stewart, under Power of Attorney dated April 17, 2023, from Jennifer Allerton
Issuer symbol
IRM
Transactions as of
29 May 2025
Net transactions value
-$19,853
Form type
4
Filing time
02 Jun 2025, 16:13:40 UTC
Previous filing
03 Jun 2024
Next filing
03 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Allerton Jennifer Director C/O IRON MOUNTAIN INCORPORATED, 85 NEW HAMPSHIRE AVENUE, SUITE 150, PORTSMOUTH /s/ Keely Stewart, under Power of Attorney dated April 17, 2023, from Jennifer Allerton 02 Jun 2025 0001618762

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IRM Common Stock, par value $.01 per share Award $0 +2,249 +14% $0.000000 18,744 29 May 2025 Direct F1
transaction IRM Common Stock, par value $.01 per share Tax liability $19,853 -203 -1.1% $97.80 18,541 29 May 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Consists of shares issuable upon the settlement of restricted stock units ("RSUs") granted on May 29, 2025. The RSUs vest in their entirety on the grant date.