COHEN & STEERS, INC. - 30 Sep 2025 SCHEDULE 13G 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
295,211,087 shares
Disclosed Ownership
16,029,962 shares
Ownership
5.4%
Form type
SCHEDULE 13G
Filing time
14 Nov 2025, 06:40:51 UTC
Date of event
30 Sep 2025
Previous filing
07 Mar 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. 5.4% 16,029,962 12,328,467 0 /s/ Nargis Hilal SVP, Global Chief Compliance Officer & Associate General Counsel
Cohen & Steers Capital Management, Inc. 5.4% 15,841,858 12,243,203 0 /s/ Nargis Hilal SVP, Global Chief Compliance Officer & Associate General Counsel
Cohen & Steers UK Limited 0.06% 171,788 68,948 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% 16,316 16,316 0 /s/ Alan Cooper VP, Compliance Officer