Iron Mountain
1,035 hedge funds and large institutions have $25.5B invested in Iron Mountain in 2025 Q2 according to their latest regulatory filings, with 118 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: 987 → 1,035 (+48)
2.08% more ownership
Funds ownership: 82.2% → 84.28% (+2.1%)
43% less call options, than puts
Call options by funds: $102M | Put options by funds: $179M
Holders
1,035
Holding in Top 10
16
Calls
$102M
Puts
$179M
Top Buyers
| 1 | +$172M | |
| 2 | +$158M | |
| 3 | +$148M | |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$145M |
| 5 |
CAM
Contour Asset Management
New York
|
+$93.1M |
Top Sellers
| 1 | -$405M | |
| 2 | -$114M | |
| 3 | -$109M | |
| 4 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$70.6M |
| 5 |
Voloridge Investment Management
Jupiter,
Florida
|
-$36.8M |