

| IRON MOUNTAIN INC. | 14/06/2018 AGM | |
|---|---|---|
| 1a | Elect Director Jennifer Allerton | For |
| 1b | Elect Director Ted R. Antenucci | For |
| 1c | Elect Director Pamela M. Arway | For |
| 1d | Elect Director Clarke H. Bailey | For |
| 1e | Elect Director Kent P. Dauten | For |
| 1f | Elect Director Paul F. Deninger | For |
| 1g | Elect Director Per-Kristian Halvorsen | For |
| 1h | Elect Director William L. Meaney | For |
| 1i | Elect Director Wendy J. Murdock | For |
| 1j | Elect Director Walter C. Rakowich | For |
| 1k | Elect Director Alfred J. Verrecchia | For |
| 2 | Advisory Vote on Executive Compensation | Abstain |
| 3 | Appoint the Auditors | Oppose |