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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 %
QC
351
Quadrature Capital
United Kingdom
$1.93M +$895K +10,398 +87%
FT
352
Fiduciary Trust
Massachusetts
$1.86M -$12.7K -148 -0.7%
HT
353
Heritage Trust
Oklahoma
$1.85M -$56.1K -652 -3%
KIA
354
KCM Investment Advisors
California
$1.83M – – –
SPS
355
Susquehanna Portfolio Strategies
Pennsylvania
$1.83M +$1.83M +21,247 New
BMSSC
356
B. Metzler seel. Sohn & Co
Germany
$1.82M -$302K -3,505 -14%
CIG
357
Cascade Investment Group
Colorado
$1.81M -$41.3K -480 -2%
OTL
358
Oak Thistle LLC
New York
$1.8M +$1.18M +13,665 +189%
NW
359
Naviter Wealth
Arkansas
$1.78M +$64.7K +753 +4%
KTC
360
Kentucky Trust Company
Kentucky
$1.77M -$77K -895 -4%
Fifth Third Bancorp
361
Fifth Third Bancorp
Ohio
$1.77M -$18.8K -219 -1%
IMRF
362
Illinois Municipal Retirement Fund
Illinois
$1.76M – – –
Robeco Institutional Asset Management
363
Robeco Institutional Asset Management
Netherlands
$1.74M +$89.4K +1,039 +5%
SHF
364
Safe Harbor Fiduciary
Florida
$1.72M -$9.55K -111 -0.6%
KRS
365
Kentucky Retirement Systems
Kentucky
$1.71M -$24.3K -282 -1%
N
366
Natixis
France
$1.68M +$1.68M +19,581 New
PS
367
Pensionfund Sabic
Netherlands
$1.66M -$258K -3,000 -13%
BEI
368
Benjamin Edwards Inc
Missouri
$1.64M -$286K -3,319 -15%
TI
369
Tidal Investments
Wisconsin
$1.6M +$316K +3,674 +25%
MAM
370
Madison Asset Management
Wisconsin
$1.59M -$502K -5,838 -24%
TSWM
371
Tyler-Stone Wealth Management
Ohio
$1.59M -$193K -2,242 -11%
TIA
372
Trust Investment Advisors
Indiana
$1.58M +$22K +256 +1%
IC
373
IEQ Capital
California
$1.57M +$112K +1,304 +8%
RA
374
RFG Advisory
Alabama
$1.56M +$345K +4,005 +28%
CB
375
Commerce Bank
Missouri
$1.56M -$127K -1,480 -8%
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