Position history for BlackRock, Inc.'s holdings in IRON MTN INC DEL
BlackRock, Inc. holds 33M shares of IRM (IRON MTN INC DEL), worth $3.4B as of 2026-Q1. The position was increased (+0.3% shares). IRM represents 0.1% of BlackRock, Inc.'s portfolio.
Current Value
$3.4B
Current Shares
33M
Total Value Change
+$1.6M
Total Shares Change
+948,482
Other major holders of IRM: VANGUARD GROUP INC
Increased |
| 33M |
+0.3% |
| $3.4B |
| 0.1% |
| $107.78 |
32 |
| 2025-Q4 | Increased | 32.9M | +3.8% | $2.7B | 0.0% | $83.36 | 33 |
| 2025-Q3 | Increased | 31.7M | +1.4% | $3.2B | 0.1% | $99.31 | 32 |
| 2025-Q2 | Decreased | 31.3M | -11.2% | $3.2B | 0.1% | $100.42 | 0 |
| 2025-Q1 | Increased | 35.2M | +9.8% | $3B | 0.1% | $82.89 | 35 |
| 2024-Q4 | New | 32.1M | - | $3.4B | 0.1% | $100.08 | 44 |