Iron Mountain shares owned by National Pension Service
Quarter-by-quarter ownership of Iron Mountain (IRM) shares owned by National Pension Service
from 13F filings
Historical chart of National Pension Service investment in Iron Mountain
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Quarterly reported holdings in Iron Mountain by National Pension Service
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $51M | 496k | 101.94 |
| 2025-06-30 | $49M | 476k | 102.57 |
| 2025-03-31 | $41M | 473k | 86.04 |
| 2024-12-31 | $42M | 403k | 105.11 |
| 2024-09-30 | $55M | 460k | 118.83 |
| 2024-03-31 | $34M | 417k | 80.21 |
| 2023-12-31 | $29M | 414k | 69.98 |
| 2023-09-30 | $25M | 414k | 59.88 |
| 2023-06-30 | $24M | 428k | 56.16 |
| 2023-03-31 | $24M | 467k | 51.79 |
| 2022-12-31 | $26M | 512k | 49.85 |
| 2022-09-30 | $22M | 502k | 43.81 |
| 2022-06-30 | $26M | 531k | 48.69 |
| 2022-03-31 | $29M | 519k | 55.41 |
| 2021-12-31 | $4.4M | 83k | 52.33 |
| 2021-09-30 | $3.6M | 83k | 43.45 |
| 2020-03-31 | $65k | 2.7k | 23.71 |
| 2019-12-31 | $87k | 2.7k | 31.73 |
| 2019-09-30 | $89k | 2.7k | 32.40 |
| 2019-06-30 | $86k | 2.7k | 31.31 |
| 2017-12-31 | $61k | 1.6k | 37.91 |
| 2017-09-30 | $62k | 1.6k | 38.53 |
| 2017-06-30 | $44k | 1.3k | 33.95 |
| 2017-03-31 | $17k | 490 | 34.69 |
| 2016-12-31 | $16k | 490 | 32.65 |