Iron Mountain Inc (IRM) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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