Iron Mountain shares owned by Duff & Phelps Investment Management
Quarter-by-quarter ownership of Iron Mountain (IRM) shares owned by Duff & Phelps Investment Management
from 13F filings
Historical chart of Duff & Phelps Investment Management investment in Iron Mountain
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Quarterly reported holdings in Iron Mountain by Duff & Phelps Investment Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $167M | 1.6M | 101.94 |
| 2025-06-30 | $151M | 1.5M | 102.57 |
| 2025-03-31 | $115M | 1.3M | 86.04 |
| 2024-12-31 | $131M | 1.2M | 105.11 |
| 2024-09-30 | $147M | 1.2M | 118.83 |
| 2024-06-30 | $116M | 1.3M | 89.62 |
| 2024-03-31 | $72M | 896k | 80.21 |
| 2023-12-31 | $3.9M | 56k | 69.98 |
| 2023-09-30 | $2.6M | 44k | 59.45 |
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