Q4 2025 13F Holders as of 31 Dec 2025
-
Type / Class
-
Equity / Common Stock
-
Shares outstanding
-
295,766,873
-
Total 13F shares
-
255,955,952
-
Share change
-
+6,454,438
-
Total reported value
-
$21,240,004,188
-
Put/Call ratio
-
56%
-
Price per share
-
$82.95
-
Number of holders
-
986
-
Value change
-
+$498,471,414
-
Number of buys
-
387
-
Number of sells
-
515
Institutional Holders of IRON MOUNTAIN INC - Common Stock (IRM) as of Q4 2025
As of 31 Dec 2025,
IRON MOUNTAIN INC - Common Stock (IRM) was held by
986 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
255,955,952 shares.
The largest 10 holders included
VANGUARD GROUP INC, BlackRock, Inc., COHEN & STEERS, INC., STATE STREET CORP, GEODE CAPITAL MANAGEMENT, LLC, FMR LLC, NORGES BANK, DIMENSIONAL FUND ADVISORS LP, Invesco Ltd., and PRINCIPAL FINANCIAL GROUP INC.
This page lists
986
institutional shareholders reporting positions in this security
for the Q4 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.