IRON MOUNTAIN INC - Common Stock (IRM)

Q2 2025 13F Holders as of 30 Jun 2025

Type / Class
Equity / Common Stock
Shares outstanding
295,211,087
Total 13F shares
248,525,285
Share change
+7,660,480
Total reported value
$25,494,373,784
Put/Call ratio
166%
Price per share
$102.57
Number of holders
1,032
Value change
+$803,176,666
Number of buys
498
Number of sells
415

Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q2 2025

As of 30 Jun 2025, IRON MOUNTAIN INC - Common Stock (IRM) was held by 1,032 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 248,525,285 shares. The largest 10 holders included VANGUARD GROUP INC, BlackRock, Inc., STATE STREET CORP, COHEN & STEERS, INC., GEODE CAPITAL MANAGEMENT, LLC, FMR LLC, DIMENSIONAL FUND ADVISORS LP, Invesco Ltd., NORGES BANK, and NORTHERN TRUST CORP. This page lists 1,034 institutional shareholders reporting positions in this security for the Q2 2025 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.