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Iron Mountain

994 hedge funds and large institutions have $21.1B invested in Iron Mountain in 2025 Q1 according to their latest regulatory filings, with 90 funds opening new positions, 348 increasing their positions, 400 reducing their positions, and 143 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:

17% less capital invested

Capital invested by funds: $25.4B → $21.1B (-$4.28B)

24% less call options, than puts

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

37% less first-time investments, than exits

New positions opened: 90 | Existing positions closed: 143

Holders
994
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 +$445M
2 +$304M
3 +$138M
4
Goldman Sachs
Goldman Sachs
New York
+$88M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$84.3M

Top Sellers

1 -$224M
2 -$169M
3 -$164M
4
Cohen & Steers
Cohen & Steers
New York
-$137M
5
Wellington Management Group
Wellington Management Group
Massachusetts
-$46.3M
Name Holding Trade Value Shares
Change
Change in
Stake
251
$4.35M
252
$4.32M
253
$4.31M
254
$4.28M
255
$4.27M
256
$4.22M
257
$4.21M
258
$4.2M
259
$4.18M
260
$4.18M
261
$4.15M
262
$4.13M
263
$3.97M
264
$3.92M
265
$3.9M
266
$3.89M
267
$3.88M
268
$3.84M
269
$3.76M
270
$3.74M
271
$3.74M
272
$3.72M
273
$3.71M
274
$3.64M
275
$3.64M