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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 %
OPERF
326
Oregon Public Employees Retirement Fund
Oregon
$2.17M +$9.46K +110 +0.4%
TA
327
TFG Advisers
Michigan
$2.17M +$41.6K +484 +2%
EA
328
Ellsworth Advisors
Ohio
$2.17M +$18.6K +216 +0.9%
VPIM
329
Vanguard Personalized Indexing Management
California
$2.16M +$111K +1,288 +5%
CBT
330
CoreFirst Bank & Trust
Kansas
$2.16M -$8.6K -100 -0.4%
WP
331
Woodline Partners
California
$2.13M +$619K +7,193 +41%
GCM
332
Gables Capital Management
Florida
$2.13M +$8.6K +100 +0.4%
US Bancorp
333
US Bancorp
Minnesota
$2.09M +$132K +1,539 +7%
EAM
334
Erste Asset Management
Austria
$2.09M -$5.29M -62,100 -72%
CIA
335
Capital Investment Advisors
Georgia
$2.08M -$137K -1,593 -6%
ET
336
Entropy Technologies
New York
$2.08M +$2.08M +24,177 New
MNBTD
337
Moody National Bank Trust Division
Texas
$2.06M +$1.89K +22 +0.1%
BCV
338
Banque Cantonale Vaudoise
Switzerland
$2.05M +$2.05M +23,815 New
GM
339
GeoWealth Management
Illinois
$2.04M -$298K -3,469 -13%
SCA
340
Sippican Capital Advisors
Massachusetts
$2.04M -$4.3K -50 -0.2%
MSU
341
Mizuho Securities USA
New York
$2.02M -$369K -4,293 -15%
PI
342
PFG Investments
New York
$2.02M -$184K -2,136 -8%
SYBT
343
Stock Yards Bank & Trust
Kentucky
$2M -$219K -2,541 -10%
Connor, Clark & Lunn Investment Management (CC&L)
344
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$2M +$2M +23,263 New
AIM
345
Aigen Investment Management
New York
$1.99M +$1.99M +23,104 New
QT
346
Quantbot Technologies
New York
$1.99M -$1.97M -22,844 -50%
TAF
347
Tredje AP-fonden
Sweden
$1.98M – – –
AA
348
Ancora Advisors
Ohio
$1.96M – – –
TRSOTSOK
349
Teachers Retirement System of the State of Kentucky
Kentucky
$1.94M +$80.9K +941 +4%
FMI
350
F/M Investments
District of Columbia
$1.93M -$88.7K -1,031 -4%
12 13
14
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