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Iron Mountain

987 hedge funds and large institutions have $20.8B invested in Iron Mountain in 2025 Q1 according to their latest regulatory filings, with 89 funds opening new positions, 345 increasing their positions, 398 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less funds holding

Funds holding:

less funds holding in top 10

Funds holding in top 10:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

18% less capital invested

Capital invested by funds: $25.4B → $20.8B (-$4.61B)

24% less call options, than puts

Call options by funds: $151M | Put options by funds: $197M

38% less first-time investments, than exits

New positions opened: 89 | Existing positions closed: 144

Holders
987
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$151M
Puts
$197M
Net Calls
Net Calls Change

Top Buyers

1 +$397M
2 +$271M
3 +$123M
4
Goldman Sachs
Goldman Sachs
New York
+$78.6M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$75.3M

Top Sellers

1 -$224M
2 -$151M
3 -$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
Change in
Stake
351
$1.96M
352
$1.94M
353
$1.93M
354
$1.93M
355
$1.86M
356
$1.85M
357
$1.83M
358
$1.83M
359
$1.82M
360
$1.81M
361
$1.8M
362
$1.78M
363
$1.77M
364
$1.77M
365
$1.76M
366
$1.74M
367
$1.72M
368
$1.71M
369
$1.68M
370
$1.66M
371
$1.64M
372
$1.6M
373
$1.59M
374
$1.59M
375
$1.58M