Iron Mountain Incorporated
DE ˙ DB ˙ US46284V1017
111,85 € ↑2,30 (2,10%)
2026-06-05
DEL PRIS
SecurityDE:I5M / Iron Mountain Incorporated
InstitutionCibc World Markets Corp
Latest Disclosed Ownership115,456 shares
Latest Disclosed Value $ 9,577,075
Cibc World Markets Corp reports 0.15% decrease in ownership of I5M / Iron Mountain Incorporated

On February 12, 2026 - Cibc World Markets Corp filed a 13F-HR form disclosing ownership of 115,456 shares of Iron Mountain Incorporated (DE:I5M) valued at $8,070,374 USD as of December 31, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 115,626 shares of Iron Mountain Incorporated. This represents a change in shares of -0.15% during the quarter. The current value of the position is $12,913,754 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-12 2025-12-31 13F IRON MTN INC DEL COM 46284V101 115,456 -170 -0.15 9,577 -19.24 0.0461
2025-08-14 2025-06-30 13F IRON MTN INC NEW COM COM 46284V101 115,626 -1,851 -1.58 11,860 17.33 0.0744
2025-05-13 2025-03-31 13F IRON MTN INC NEW COM COM 46284V101 117,477 -14,237 -10.81 10,108 -26.99 0.0795
2025-02-10 2024-12-31 13F IRON MTN INC NEW COM COM 46284V101 131,714 14,380 12.26 13,844 -0.70 0.0811
2024-11-13 2024-09-30 13F IRON MTN INC NEW COM COM 46284V101 117,334 79,544 210.49 13,943 311.75 0.1005
2024-08-12 2024-06-30 13F IRON MTN INC NEW COM COM 46284V101 37,790 -82,379 -68.55 3,387 -64.87 0.0222
2024-05-13 2024-03-31 13F IRON MTN INC NEW COM COM 46284V101 120,169 -14,285 -10.62 9,639 2.43 0.0632
2024-02-13 2023-12-31 13F IRON MTN INC DEL COM COM 46284V101 134,454 118,346 734.70 9,409 883.18 0.0513
2023-11-13 2023-09-30 13F IRON MTN INC NEW COM COM 46284V101 16,108 -18,070 -52.87 958 -50.70 0.0094
2023-08-04 2023-06-30 13F IRON MTN INC NEW COM COM 46284V101 34,178 -75,068 -68.71 1,942 -66.42 0.0158
2023-05-11 2023-03-31 13F IRON MTN INC NEW COM COM 46284V101 109,246 -18,705 -14.62 5,780 -9.38 0.0944
2023-02-09 2022-12-31 13F IRON MTN INC NEW COM COM 46284V101 127,951 4,544 3.68 6,378 17.55 0.0429
2022-11-14 2022-09-30 13F IRON MTN INC NEW COM COM 46284V101 123,407 -21,338 -14.74 5,426 -23.01 0.0754
2022-08-12 2022-06-30 13F IRON MTN INC NEW COM COM 46284V101 144,745 -18,618 -11.40 7,048 -22.14 0.0662
2022-05-13 2022-03-31 13F IRON MTN INC NEW COM COM 46284V101 163,363 8,294 5.35 9,052 11.55 0.0707
2022-02-11 2021-12-31 13F IRON MTN INC NEW COM COM 46284V101 155,069 -29,339 -15.91 8,115 1.27 0.0432
2021-11-12 2021-09-30 13F IRON MTN INC NEW COM COM 46284V101 184,408 53,044 40.38 8,013 44.14 0.0545
2021-08-10 2021-06-30 13F IRON MTN INC NEW COM COM 46284V101 131,364 103,865 377.70 5,559 446.07 0.0387
2021-05-07 2021-03-31 13F IRON MTN INC NEW COM COM 46284V101 27,499 -204,988 -88.17 1,018 -85.15 0.0063
2021-02-12 2020-12-31 13F IRON MTN INC NEW COM COM 46284V101 232,487 197,790 570.05 6,854 636.99 0.0345
2020-11-12 2020-09-30 13F IRON MTN INC NEW COM COM 46284V101 34,697 6,421 22.71 930 26.02 0.0091
2020-08-12 2020-06-30 13F IRON MTN INC NEW COM COM 46284V101 28,276 7,261 34.55 738 47.60 0.0079
2020-05-12 2020-03-31 13F IRON MTN INC NEW COM COM 46284V101 21,015 -12,943 -38.11 500 -53.79 0.0064
2020-02-13 2019-12-31 13F IRON MTN INC NEW COM COM 46284V101 33,958 -966,940 -96.61 1,082 -96.66 0.0070
2019-11-12 2019-09-30 13F IRON MTN INC NEW COM COM 46284V101 1,000,898 -417,157 -29.42 32,419 -26.96 0.3024
2019-08-13 2019-06-30 13F IRON MTN INC NEW COM COM 46284V101 1,418,055 1,380,134 3,639.50 44,385 3,200.00 0.3419
2019-05-14 2019-03-31 13F IRON MTN INC NEW COM COM 46284V101 37,921 -2,040 -5.10 1,345 3.86 0.0110
2019-02-13 2018-12-31 13F/A-1 IRON MTN INC NEW COM COM 46284V101 39,961 2,250 5.97 1,295 -0.54 0.0121
2019-02-13 2018-12-31 13F IRON MTN INC NEW COM COM 46284V101 39,961 2,250 1,295
2018-11-13 2018-09-30 13F IRON MTN INC NEW COM COM 46284V101 37,711 -2,044 -5.14 1,302 -6.47 0.0111
2018-08-13 2018-06-30 13F IRON MTN INC NEW COM COM 46284V101 39,755 3,272 8.97 1,392 16.10 0.0120
2018-05-11 2018-03-31 13F IRON MTN INC NEW COM COM 46284V101 36,483 -17,621 -32.57 1,199 -41.25 0.0127
2018-02-13 2017-12-31 13F IRON MTN INC NEW COM COM 46284V101 54,104 15,589 40.48 2,041 36.25 0.0147
2017-11-14 2017-09-30 13F IRON MTN INC NEW COM COM 46284V101 38,515 3,804 10.96 1,498 25.57 0.0144
2017-08-11 2017-06-30 13F IRON MTN INC NEW COM COM 46284V101 34,711 9,077 35.41 1,193 30.53 0.0126
2017-05-10 2017-03-31 13F IRON MTN INC NEW COM COM 46284V101 25,634 8,819 52.45 914 67.40 0.0074
2017-02-13 2016-12-31 13F IRON MTN INC NEW COM COM 46284V101 16,815 16,815 546 0.0056
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.