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Iron Mountain

1,025 hedge funds and large institutions have $25.5B invested in Iron Mountain in 2025 Q2 according to their latest regulatory filings, with 118 funds opening new positions, 387 increasing their positions, 351 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,025
Holders Change
+43
Holders Change %
+4.38%
% of All Funds
13.74%
Holding in Top 10
16
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+60%
% of All Funds
0.21%
New
118
Increased
387
Reduced
351
Closed
61
Calls
$102M
Puts
$179M
Net Calls
-$77.2M
Net Calls Change
-$30.7M
Name Holding Trade Value Shares
Change
Shares
Change %
RWS
1026
Retirement Wealth Solutions
Wisconsin
$19 -$16
LIMS
1027
Lasalle Investment Management Securities
Maryland
-$16.7M -194,144 Closed
Two Sigma Investments
1028
Two Sigma Investments
New York
-$15.1M -175,533 Closed
CSS
1029
Cubist Systematic Strategies
Connecticut
-$7.48M -86,988 Closed
Renaissance Technologies
1030
Renaissance Technologies
New York
-$7.38M -85,763 Closed
BS
1031
Banco Santander
Spain
-$6.63M -77,016 Closed
BHC
1032
Bowen Hanes & Co
Florida
-$6.45M -75,000 Closed
Nomura Holdings
1033
Nomura Holdings
Japan
-$6.41M -74,514 Closed
CF
1034
Corebridge Financial
Texas
-$6.32M -73,436 Closed
FC
1035
FORA Capital
Florida
-$3.12M -36,263 Closed
AG
1036
Algert Global
California
-$2.71M -31,523 Closed
CIG
1037
CHB Investment Group
Pennsylvania
-$2.51M -29,175 Closed
EA
1038
Ellsworth Advisors
Ohio
-$2.17M -25,194 Closed
ET
1039
Entropy Technologies
New York
-$2.08M -24,177 Closed
AIM
1040
Aigen Investment Management
New York
-$1.99M -23,104 Closed
QC
1041
Quadrature Capital
United Kingdom
-$1.93M -22,389 Closed
DM
1042
Delphi Management
Massachusetts
-$1.3M -15,155 Closed
VIA
1043
Virtus Investment Advisers
Connecticut
-$1.24M -14,385 Closed
Vontobel Holding
1044
Vontobel Holding
Switzerland
-$1.01M -11,687 Closed
GS
1045
GWN Securities
Florida
-$1.05M -10,877 Closed
CIM
1046
Contravisory Investment Management
Massachusetts
-$927K -10,775 Closed
TC
1047
TownSquare Capital
Utah
-$869K -10,096 Closed
HBT
1048
Heartland Bank & Trust
Illinois
-$817K -9,492 Closed
USAA
1049
United Services Automobile Association
Texas
-$622K -7,308 Closed
NICM
1050
Neo Ivy Capital Management
New York
-$557K -6,468 Closed