Iron Mountain
1,001 hedge funds and large institutions have $25.5B invested in Iron Mountain in 2025 Q3 according to their latest regulatory filings, with 75 funds opening new positions, 361 increasing their positions, 387 reducing their positions, and 89 closing their positions.
New
Increased
Maintained
Reduced
Closed
more ownership
Funds ownership: →
less capital invested
Capital invested by funds: $ → $
less call options, than puts
Call options by funds: $ | Put options by funds: $
less repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
3% less funds holding
Funds holding: 1,034 → 1,001 (-33)
16% less first-time investments, than exits
New positions opened: 75 | Existing positions closed: 89
19% less funds holding in top 10
Funds holding in top 10: 16 → 13 (-3)
Holders
1,001
Holding in Top 10
13
Calls
$103M
Puts
$110M
Top Buyers
| 1 | +$276M | |
| 2 | +$202M | |
| 3 | +$118M | |
| 4 |
Vontobel Holding
Zurich,
Switzerland
|
+$110M |
| 5 |
CAM
Contour Asset Management
New York
|
+$84.7M |
Top Sellers
| 1 | -$127M | |
| 2 | -$54.9M | |
| 3 | -$54.8M | |
| 4 |
Goldman Sachs
New York
|
-$53.6M |
| 5 |
ZIG
Zurich Insurance Group
Zurich,
Switzerland
|
-$52.7M |
