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Iron Mountain
IRM

Overview Fund Activity

982 hedge funds and large institutions have $20.7B invested in Iron Mountain in 2025 Q1 according to their latest regulatory filings, with 89 funds opening new positions, 342 increasing their positions, 396 reducing their positions, and 142 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
982
Holders Change
-70
Holders Change %
-6.65%
% of All Funds
13.34%
Holding in Top 10
10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-9.09%
% of All Funds
0.14%
New
89
Increased
342
Reduced
396
Closed
142
Calls
$151M
Puts
$197M
Net Calls
-$46.5M
Net Calls Change
-$48.9M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$397M
2
BlackRock
BlackRock
New York
+$271M
3
CAM
Contour Asset Management
New York
+$123M
4
Goldman Sachs
Goldman Sachs
New York
+$78.6M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$75.3M

Top Sellers

1
AM
AGF Management
Ontario, Canada
-$224M
2
TD Asset Management
TD Asset Management
Ontario, Canada
-$151M
3
Capital World Investors
Capital World Investors
California
-$146M
4
Cohen & Steers
Cohen & Steers
New York
-$123M
5
Wellington Management Group
Wellington Management Group
Massachusetts
-$41.3M
Name Holding Trade Value Shares
Change 		Shares
Change %
Commonwealth Equity Services
101
Commonwealth Equity Services
Massachusetts
$18M -$1.35M -15,711 -7%
New York State Common Retirement Fund
102
New York State Common Retirement Fund
New York
$17.7M +$1.34M +15,600 +8%
MWM
103
Moran Wealth Management
Florida
$17.7M -$261K -3,029 -1%
Stifel Financial
104
Stifel Financial
Missouri
$17.7M -$5.56M -64,662 -24%
Credit Agricole
105
Credit Agricole
France
$17.3M -$2.44M -28,301 -12%
Manulife (Manufacturers Life Insurance)
106
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$16.8M +$588K +6,832 +4%
Zurich Cantonal Bank
107
Zurich Cantonal Bank
Switzerland
$16.8M +$893K +10,382 +6%
LIMS
108
Lasalle Investment Management Securities
Maryland
$16.7M +$16.7M +194,144 New
TD Asset Management
109
TD Asset Management
Ontario, Canada
$16.7M -$151M -1,758,408 -90%
SO
110
STRS Ohio
Ohio
$16.4M +$5.14M +59,700 +46%
UBV
111
United Bank (Virginia)
Virginia
$16.2M -$2.23M -25,913 -12%
State of Wisconsin Investment Board
112
State of Wisconsin Investment Board
Wisconsin
$16.2M +$788K +9,159 +5%
UCFA
113
United Capital Financial Advisors
Texas
$15.8M +$77.9K +905 +0.5%
RAM
114
Resona Asset Management
Japan
$15.2M +$1.11M +12,949 +8%
SOADOR
115
State of Alaska Department of Revenue
Alaska
$15.2M +$218K +2,530 +1%
Alyeska Investment Group
116
Alyeska Investment Group
Illinois
$15.2M +$15.2M +176,584 New
SSA
117
Schonfeld Strategic Advisors
New York
$15.1M -$5.14M -59,724 -25%
Two Sigma Investments
118
Two Sigma Investments
New York
$15.1M +$15.1M +175,533 New
ERSOT
119
Employees Retirement System of Texas
Texas
$14.8M +$3.6M +41,824 +32%
Handelsbanken Fonder
120
Handelsbanken Fonder
Sweden
$14.7M -$3.36M -39,081 -19%
Cetera Investment Advisers
121
Cetera Investment Advisers
Illinois
$14.5M +$1.35M +15,708 +10%
Natixis Advisors
122
Natixis Advisors
Massachusetts
$14.4M -$2.81M -32,686 -16%
COPPSERS
123
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$13.9M +$411K +4,777 +3%
DIA
124
Dana Investment Advisors
Wisconsin
$13.7M -$452K -5,257 -3%
BCM
125
Brookstone Capital Management
Illinois
$13.6M +$3.04M +35,362 +29%
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