Jennifer Allerton - 02 Mar 2026 Form 4 Insider Report for IRON MOUNTAIN INC (IRM)

Role
Director
Signature
/s/ Christine Zhang, under Power of Attorney dated June 19, 2025, from Jennifer Allerton
Issuer symbol
IRM
Transactions as of
02 Mar 2026
Net transactions value
-$762,160
Form type
4
Filing time
03 Mar 2026, 18:30:48 UTC
Previous filing
02 Jun 2025
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/ Christine Zhang, under Power of Attorney dated June 19, 2025, from Jennifer Allerton 03 Mar 2026 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 Sale $762,160 -7,000 -38% $108.88 11,541 02 Mar 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The price reported in Column 4 is a weighted average price. These shares of the Company common stock ("Common Stock") were sold in multiple transactions at prices ranging from $108.86 to $109.00, inclusive. The Reporting Person undertakes to provide the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the ranges set forth in this footnote (1).