We are live on ! Find out more
IRM icon

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
526
$689K
527
$688K
528
$683K
529
$683K
530
$681K
531
$674K
532
$671K
533
$667K
534
$666K
535
$666K
536
$665K
537
$660K
538
$659K
539
$654K
540
$653K
541
$652K
542
$649K
543
$646K
544
$645K
545
$643K
546
$634K
547
$628K
548
$626K
549
$626K
550
$622K