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Iron Mountain
IRM

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 %
DZ Bank
76
DZ Bank
Germany
$38.8M 377,807 +258,003 +215%
GC
77
Gillson Capital
Illinois
$37.9M 369,137 +369,137 New
Bank of Montreal
78
Bank of Montreal
Ontario, Canada
$37.6M 366,434 -52,102 -12%
Neuberger Berman Group
79
Neuberger Berman Group
New York
$37.4M 364,626 +325,110 +823%
Aberdeen Group
80
Aberdeen Group
United Kingdom
$34.8M 339,663 +31,017 +10%
MHIC
81
Marble Harbor Investment Counsel
Massachusetts
$33.7M 328,773 -4,815 -1%
AHC
82
Adell Harriman & Carpenter
Texas
$33.3M 324,300 +2,466 +0.8%
Swedbank
83
Swedbank
Sweden
$32.3M 315,060 +12,030 +4%
William Blair & Company
84
William Blair & Company
Illinois
$32.2M 314,130 -16,408 -5%
State Board of Administration of Florida Retirement System
85
State Board of Administration of Florida Retirement System
Florida
$30.4M 295,986 +6,180 +2%
Macquarie Group
86
Macquarie Group
Australia
$29.6M 288,984 +5,728 +2%
Korea Investment Corp
87
Korea Investment Corp
South Korea
$28.3M 275,470 -59,600 -18%
WorldQuant Millennium Advisors
88
WorldQuant Millennium Advisors
New York
$27.5M 268,157 +7,176 +3%
RFC
89
Regions Financial Corp
Alabama
$25.5M 248,286 +7,010 +3%
AAF
90
Andra AP-fonden
Sweden
$25.2M 245,900 -28,900 -11%
Victory Capital Management
91
Victory Capital Management
Texas
$23.8M 231,954 +146,108 +170%
Retirement Systems of Alabama
92
Retirement Systems of Alabama
Alabama
$23.7M 231,245 -757 -0.3%
Aviva
93
Aviva
United Kingdom
$23.4M 228,239 -125,947 -36%
New York State Teachers Retirement System (NYSTRS)
94
New York State Teachers Retirement System (NYSTRS)
New York
$23.4M 227,925 +186 +0.1%
National Bank of Canada
95
National Bank of Canada
Quebec, Canada
$23.3M 227,389 -12,287 -5%
SO
96
STRS Ohio
Ohio
$23M 224,612 +33,812 +18%
Corient Private Wealth
97
Corient Private Wealth
Florida
$22.6M 220,602 -3,170 -1%
Pacer Advisors
98
Pacer Advisors
Pennsylvania
$22.6M 220,283 -24,203 -10%
Stifel Financial
99
Stifel Financial
Missouri
$22.1M 215,236 +10,064 +5%
WCP
100
Waterfront Capital Partners
New York
$21.6M 210,473 -114,647 -35%
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