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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 %
AV
176
ASR Vermogensbeheer
Netherlands
$7.8M +$7.8M +90,601 New
FCMA
177
Foresight Capital Management Advisors
Michigan
$7.59M +$75.9K +882 +1%
KAS
178
Kestra Advisory Services
Texas
$7.57M +$327K +3,802 +5%
CSS
179
Cubist Systematic Strategies
Connecticut
$7.48M +$6.34M +73,675 +553%
Capital Fund Management (CFM)
180
Capital Fund Management (CFM)
France
$7.47M +$581K +6,758 +8%
Victory Capital Management
181
Victory Capital Management
Texas
$7.39M -$969K -11,257 -12%
Renaissance Technologies
182
Renaissance Technologies
New York
$7.38M +$7.38M +85,763 New
VRS
183
Virginia Retirement Systems
Virginia
$7.35M +$7.35M +85,400 New
M&T Bank
184
M&T Bank
New York
$7.33M -$161K -1,867 -2%
ASRS
185
Arizona State Retirement System
Arizona
$7.3M -$28.7K -334 -0.4%
Mercer Global Advisors
186
Mercer Global Advisors
Colorado
$7.11M -$375K -4,362 -5%
OCBCO
187
Oversea-Chinese Banking Corp (OCBC)
Singapore
$7.02M +$326K +3,790 +5%
MML Investors Services
188
MML Investors Services
Massachusetts
$6.95M -$137K -1,589 -2%
X
189
Xponance
Pennsylvania
$6.94M -$1.53M -17,784 -18%
VI
190
Vestcor Inc
New Brunswick, Canada
$6.93M -$448K -5,211 -6%
VMPIC
191
Varma Mutual Pension Insurance Co
Finland
$6.9M -$714K -8,300 -9%
SOMRS
192
State of Michigan Retirement System
Michigan
$6.85M – – –
NAM
193
Nissay Asset Management
Japan
$6.79M +$107K +1,241 +2%
Public Sector Pension Investment Board (PSP Investments)
194
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.76M -$12.6M -146,639 -65%
EP
195
Edgestream Partners
New Jersey
$6.68M -$348K -4,049 -5%
SIC
196
Salem Investment Counselors
North Carolina
$6.65M -$115K -1,339 -2%
BS
197
Banco Santander
Spain
$6.63M +$6.63M +77,016 New
BIC
198
B&I Capital
Switzerland
$6.6M +$6.6M +76,660 New
SIMG
199
Sonora Investment Management Group
Arizona
$6.56M -$161K -1,875 -2%
Wealthfront Advisers
200
Wealthfront Advisers
California
$6.52M +$291K +3,385 +5%
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