Iron Mountain shares owned by Polar Securities
Quarter-by-quarter ownership of Iron Mountain (IRM) shares owned by Polar Securities
from 13F filings
Historical chart of Polar Securities investment in Iron Mountain
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Quarterly reported holdings in Iron Mountain by Polar Securities
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $7.2M | 86k | 82.95 |
| 2025-09-30 | $2.1M | 21k | 101.94 |
| 2025-06-30 | $6.1M | 60k | 102.57 |
| 2025-03-31 | $4.8M | 56k | 86.04 |
| 2024-12-31 | $15M | 142k | 105.11 |
| 2024-09-30 | $5.1M | 43k | 118.83 |
| 2024-06-30 | $7.7M | 86k | 89.62 |
| 2024-03-31 | $21M | 265k | 80.21 |
| 2023-12-31 | $9.8M | 141k | 69.98 |
| 2023-03-31 | $3.4M | 64k | 52.91 |
| 2021-12-31 | $1.2M | 23k | 52.35 |
| 2021-06-30 | $850k | 20k | 42.32 |