As of April 28, 2026, Iron Mountain's top three insider holders are Kent P Dauten (Director, 1.21Mn shares), Barry Hytinen (Evp And Cfo, 326.62K shares), Clark H Bailey (Director, 242.45K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Kent P Dauten | - | 1,207,681 | 0 | 02 Jun, 2025 |
| Barry Hytinen | Evp And Cfo | 326,623 | 0 | 03 Mar, 2026 |
| Clark H Bailey | - | 242,455 | 0 | 03 Jul, 2025 |
| Mark Kidd | Evp, Gm Data Centers Alm | 125,507 | 0 | 02 Apr, 2026 |
| Mark Kidd | Evp, Gm Data Centers Alm | 125,507 | 0 | 02 Apr, 2026 |
| Greg W Mcintosh | Evp, Chief Commercial Officer | 85,634 | 0 | 03 Mar, 2026 |
| Greg W Mcintosh | Evp, Chief Commercial Officer | 85,634 | 0 | 03 Mar, 2026 |
| Deirdre Evens | Evp Gm, Asset Lifestyle Mgmt | 67,687 | 0 | 31 Mar, 2022 |
| Deborah Marson | Evp, General Counsel, Sec. | 59,686 | 0 | 04 Sep, 2024 |
| Deborah Marson | Evp, General Counsel, Sec. | 59,686 | 0 | 04 Sep, 2024 |
| Pamela M Arway | - | 40,196 | 0 | 02 Jun, 2025 |
| Monte E Ford | - | 29,925 | 0 | 02 Jun, 2025 |
| Robin Matlock | - | 28,559 | 0 | 22 Jan, 2026 |
| Robin Matlock | - | 28,559 | 0 | 22 Jan, 2026 |
| Mithu Bhargava | Evp, Gm Digital Business Unit | 16,054 | 0 | 23 Mar, 2026 |
| Wendy J. Murdock | - | 14,829 | 0 | 18 Sep, 2024 |
| Wendy J. Murdock | - | 14,829 | 0 | 18 Sep, 2024 |
| John Tomovcsik | Evp, Chief Operating Officer | 14,000 | 0 | 21 Aug, 2024 |
| John Tomovcsik | Evp, Chief Operating Officer | 14,000 | 0 | 21 Aug, 2024 |
| Jennifer Allerton | - | 11,541 | 0 | 03 Mar, 2026 |
| Edward Baker-Greene | Evp, Chro | 8,216 | 0 | 07 Jun, 2023 |
| Michelle Vervais Altamura | Evp, General Counsel, Sec. | 7,728 | 0 | 03 Mar, 2026 |
| Daniel Borges | Svp Chief Accounting Officer | 7,189 | 0 | 03 Mar, 2026 |
| Edward Baker-Greene | Evp, Chro | 6,859 | 0 | 20 Dec, 2024 |
| June Yee Felix | - | 2,991 | 0 | 02 Jun, 2025 |
| Theodore R. Ii Samuels | - | 2,264 | 0 | 18 Jul, 2023 |
| Andre Maciel | - | 1,627 | 0 | 24 Jul, 2024 |
| Andre Maciel | - | 1,627 | 0 | 24 Jul, 2024 |
| Christie B. Kelly | - | 1,308 | 0 | 21 Nov, 2025 |
| Jemma Johns | Evp, Chro | 965 | 0 | 06 Jan, 2026 |
| Jemma Johns | Evp, Chro | 965 | 0 | 06 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Apr, 2026 | Theodore R. Ii Samuels | Phantom Stock | A | 350 | $103.61 | 11,406 | D | A |
| 06 Apr, 2026 | Theodore R. Ii Samuels | Phantom Stock | A | 92 | $103.52 | 11,498 | D | A |
| 01 Apr, 2026 | Mark Kidd | Common Stock, par value $.01 per share | D | 6,000 | $102.71 | 125,507 | D | S |
| 01 Apr, 2026 | Mark Kidd | Common Stock, par value $.01 per share | D | 6,000 | $102.71 | 125,507 | D | S |
| 01 Apr, 2026 | William L Meaney | Common Stock, par value $.01 per share | A | 38,474 | $37.00 | 38,474 | D | M |
| 01 Apr, 2026 | William L Meaney | Common Stock, par value $.01 per share | A | 38,474 | $37.00 | 38,474 | D | M |
| 01 Apr, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 38,474 | $102.71 | 0 | D | S |
| 01 Apr, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 38,474 | $102.71 | 0 | D | S |
| 01 Apr, 2026 | William L Meaney | Employee Stock Option (Right to Buy) | D | 38,474 | - | 307,792 | D | M |
| 01 Apr, 2026 | William L Meaney | Employee Stock Option (Right to Buy) | D | 38,474 | - | 307,792 | D | M |
| 19 Mar, 2026 | Mithu Bhargava | Common Stock, par value $.01 per share | D | 14,260 | $104.25 | 61,519 | D | S |
| 19 Mar, 2026 | Mithu Bhargava | Common Stock, par value $.01 per share | D | 12,537 | $105.04 | 48,982 | D | S |
| 19 Mar, 2026 | Mithu Bhargava | Common Stock, par value $.01 per share | D | 20 | $105.64 | 48,962 | D | S |
| 19 Mar, 2026 | Mithu Bhargava | Common Stock, par value $.01 per share | D | 20,462 | $104.30 | 28,500 | D | S |
| 19 Mar, 2026 | Mithu Bhargava | Common Stock, par value $.01 per share | D | 12,446 | $105.13 | 16,054 | D | S |
| 05 Mar, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 26,278 | $105.26 | 72,379 | D | S |
| 05 Mar, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 26,278 | $105.26 | 72,379 | D | S |
| 05 Mar, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 34,358 | $106.15 | 38,021 | D | S |
| 05 Mar, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 34,358 | $106.15 | 38,021 | D | S |
| 05 Mar, 2026 | William L Meaney | Common Stock, par value $.01 per share | D | 38,021 | $107.02 | 0 | D | S |