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Iron Mountain
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Overview Fund Activity

1,018 hedge funds and large institutions have $25.4B invested in Iron Mountain in 2025 Q2 according to their latest regulatory filings, with 117 funds opening new positions, 383 increasing their positions, 349 reducing their positions, and 61 closing their positions.

Holders
1,018
Holders Change
+36
Holders Change %
+3.67%
% of All Funds
13.67%
Holding in Top 10
16
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+60%
% of All Funds
0.21%
New
117
Increased
383
Reduced
349
Closed
61
Calls
$76.7M
Puts
$138M
Net Calls
-$60.9M
Net Calls Change
-$14.4M

Top Buyers

1
Norges Bank
1
Norges Bank
Norway
$419M
2
Principal Financial Group
2
Principal Financial Group
Iowa
$265M
3
Royal Bank of Canada
3
Royal Bank of Canada
Ontario, Canada
$210M
4
Invesco
4
Invesco
Georgia
$440M
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$687M

Top Sellers

1
BlackRock
1
BlackRock
New York
$3.21B
2
Citadel Advisors
2
Citadel Advisors
Florida
$14.3M
3
Point72 Asset Management
3
Point72 Asset Management
Connecticut
$104M
4
Qube Research & Technologies (QRT)
4
Qube Research & Technologies (QRT)
United Kingdom
$21.5M
5
Voloridge Investment Management
5
Voloridge Investment Management
Florida
$39.2M
Name Market Value Shares Shares
Change 		Shares
Change %
Russell Investments Group
26
Russell Investments Group
United Kingdom
$187M 1,823,664 +52,550 +3%
UBS Group
27
UBS Group
Switzerland
$185M 1,800,227 +654,941 +57%
Bank of New York Mellon
28
Bank of New York Mellon
New York
$179M 1,747,476 -113,842 -6%
Ameriprise
29
Ameriprise
Minnesota
$176M 1,705,824 +151,140 +10%
PI
30
PGGM Investments
Netherlands
$161M 1,565,792 -32,176 -2%
Amundi
31
Amundi
France
$159M 1,600,818 +500,884 +46%
Wellington Management Group
32
Wellington Management Group
Massachusetts
$153M 1,493,923 +426,559 +40%
DPIM
33
Duff & Phelps Investment Management
Illinois
$151M 1,472,579 +141,418 +11%
Bank of America
34
Bank of America
North Carolina
$128M 1,249,442 +133,850 +12%
DekaBank Deutsche Girozentrale
35
DekaBank Deutsche Girozentrale
Germany
$115M 1,122,500 -3,512 -0.3%
CIMLRA
36
CBRE Investment Management Listed Real Assets
Pennsylvania
$110M 1,073,098 +300,908 +39%
Point72 Asset Management
37
Point72 Asset Management
Connecticut
$104M 1,014,379 -1,060,903 -51%
Sumitomo Mitsui Trust Group
38
Sumitomo Mitsui Trust Group
Japan
$94.8M 924,414 -122,702 -12%
Swiss National Bank
39
Swiss National Bank
Switzerland
$91.2M 889,261 +61,700 +7%
SEI Investments
40
SEI Investments
Pennsylvania
$90.8M 885,080 +55,245 +7%
HSBC Holdings
41
HSBC Holdings
United Kingdom
$80.4M 784,296 -35,566 -4%
CAPTRUST Financial Advisors
42
CAPTRUST Financial Advisors
North Carolina
$78.9M 769,181 -34,442 -4%
Mitsubishi UFJ Asset Management
43
Mitsubishi UFJ Asset Management
Japan
$78.6M 766,588 +49,340 +7%
American Century Companies
44
American Century Companies
Missouri
$76.4M 745,266 +266,150 +56%
EIP
45
Epoch Investment Partners
New York
$70.1M 683,612 -30,413 -4%
LPL Financial
46
LPL Financial
California
$69.1M 673,596 +42,787 +7%
WF
47
Welch & Forbes
Massachusetts
$68.6M 668,938 -5,104 -0.8%
T. Rowe Price Associates
48
T. Rowe Price Associates
Maryland
$64.3M 627,040 -197,063 -24%
Wells Fargo
49
Wells Fargo
California
$64.2M 625,477 +17,412 +3%
RhumbLine Advisers
50
RhumbLine Advisers
Massachusetts
$63.6M 619,894 -44,107 -7%
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