COHEN & STEERS, INC. - 31 Dec 2025 SCHEDULE 13G/A Report for Iron Mountain, Inc. Common Stock (IRM)

Filing Manager
COHEN & STEERS, INC.
Reporting Manager
Cohen & Steers, Inc.
Security
Iron Mountain, Inc. Common Stock
Symbol
IRM
Shares outstanding
295,766,873 shares
Disclosed Ownership
19,106,540 shares
Ownership
6.5%
Form type
SCHEDULE 13G/A
Filing time
13 Feb 2026, 08:30:02 UTC
Date of event
31 Dec 2025
Previous filing
14 Nov 2025
SEC
View on sec.gov

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Cohen & Steers, Inc. 6.5% 19,106,540 14,634,540 0 /s/ Nargis Hilal SVP, Global Chief Compliance Officer & Associate General Counsel
Cohen & Steers Capital Management, Inc. 6.4% 18,919,035 14,547,245 0 /s/ Nargis Hilal SVP, Global Chief Compliance Officer & Associate General Counsel
Cohen & Steers UK Limited 0.06% 167,379 67,169 0 /s/ Nargis Hilal SVP, Global Chief Compliance Officer & Associate General Counsel
Cohen & Steers Asia Limited 0% 0 0 0 /s/ Catherine Cheng VP, Compliance Officer
Cohen & Steers Ireland Limited 0.01% 20,126 20,126 0 /s/ Alan Cooper VP, Compliance Officer