SCHEDULE: Cohen & Steers Discloses Stake in Iron Mountain

Cohen & Steers, Inc. and its affiliates have reported beneficial ownership of 4.89% of Iron Mountain, Inc.'s common stock as of April 30, 2026.

Summary

• Cohen & Steers, Inc. and its affiliated entities (Cohen & Steers Capital Management, Inc., Cohen & Steers UK Ltd., Cohen & Steers Asia Ltd., and Cohen & Steers Ireland Ltd.) have filed a Schedule 13G, indicating their beneficial ownership of Iron Mountain, Inc. common stock.
• The filing, dated April 30, 2026, shows a combined beneficial ownership of 14,555,629 shares, representing 4.89% of the class of securities.
• Cohen & Steers, Inc. holds a 100% interest in its subsidiaries involved in this filing.
• The securities are held for the benefit of account holders, who have the right to receive dividends and proceeds from sales.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, as it is a routine disclosure of beneficial ownership by an investment firm and does not contain operational or financial performance updates.

Future Outlook

This filing is a disclosure of beneficial ownership and does not contain forward-looking statements or guidance regarding Iron Mountain, Inc.'s future performance.

Industry Context

StockSavvy.ai notes that this Schedule 13G filing by Cohen & Steers, a significant institutional investor, indicates a substantial, non-controlling stake in Iron Mountain, Inc. Such filings are common for investment managers and signal their investment positions in publicly traded companies.

Stakeholder Impact

• Shareholders: The filing provides transparency regarding significant institutional ownership, which can influence market perception and trading dynamics.
• Investment Community: This disclosure informs the market about Cohen & Steers' investment position in Iron Mountain, Inc.

Key Dates

Keywords

Iron Mountain, Cohen & Steers, Schedule 13G, Beneficial Ownership, Common Stock, SEC Filing, Investment Management