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Iron Mountain

1,037 hedge funds and large institutions have $25.5B invested in Iron Mountain in 2025 Q2 according to their latest regulatory filings, with 119 funds opening new positions, 391 increasing their positions, 354 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

5% more funds holding

Funds holding: 9881,037 (+49)

2.08% more ownership

Funds ownership: 82.19%84.27% (+2.1%)

43% less call options, than puts

Call options by funds: $102M | Put options by funds: $179M

Holders
1,037
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$102M
Puts
$179M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
826
$205K
827
$205K
828
$205K
829
$205K
830
$202K
831
$201K
832
$201K
833
$200K
834
$200K
835
$200K
836
$197K
837
$195K
838
$190K
839
$185K
840
$185K
841
$179K
842
$174K
843
$171K
844
$171K
845
$169K
846
$163K
847
$163K
848
$154K
849
$154K
850
$151K