Iron Mountain Incorporated
DE ˙ DB ˙ US46284V1017
108,60 € ↓ -0,40 (-0,37%)
2026-05-29
AKTIENPREIS
SecurityDE:I5M / Iron Mountain Incorporated
InstitutionXponance, Inc.
Latest Disclosed Ownership55,989 shares
Latest Disclosed Value $ 5,718,716
Xponance, Inc. reports 14.51% increase in ownership of I5M / Iron Mountain Incorporated

On May 13, 2026 - Xponance, Inc. filed a 13F-HR form disclosing ownership of 55,989 shares of Iron Mountain Incorporated (DE:I5M) valued at $4,970,703 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 48,894 shares of Iron Mountain Incorporated. This represents a change in shares of 14.51% during the quarter. The current value of the position is $6,080,405 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)
2026-05-13 2026-03-31 13F IRON MTN INC DEL COM 46284V101 55,989 7,095 14.51 5,719 41.01 0.0406
2026-02-12 2025-12-31 13F IRON MTN INC DEL COM 46284V101 48,894 2,710 5.87 4,056 -13.85 0.0304
2025-11-12 2025-09-30 13F IRON MTN INC DEL COM 46284V101 46,184 17 0.04 4,708 -0.59 0.0373
2025-08-14 2025-06-30 13F IRON MTN INC DEL COM 46284V101 46,167 -34,447 -42.73 4,735 -31.73 0.0396
2025-05-01 2025-03-31 13F IRON MTN INC DEL COM 46284V101 80,614 -17,784 -18.07 6,936 -32.93 0.0671
2025-02-11 2024-12-31 13F IRON MTN INC DEL COM 46284V101 98,398 2,735 2.86 10,343 -9.02 0.0943
2024-11-12 2024-09-30 13F IRON MTN INC DEL COM 46284V101 95,663 -394 -0.41 11,368 32.05 0.1097
2024-08-14 2024-06-30 13F IRON MTN INC DEL COM 46284V101 96,057 39,442 69.67 8,609 89.56 0.0880
2024-05-13 2024-03-31 13F IRON MTN INC DEL COM 46284V101 56,615 3,763 7.12 4,541 22.80 0.0476
2024-01-31 2023-12-31 13F IRON MTN INC DEL COM 46284V101 52,852 -2,773 -4.99 3,699 11.86 0.0443
2023-10-24 2023-09-30 13F IRON MTN INC DEL COM 46284V101 55,625 3,622 6.96 3,307 11.92 0.0450
2023-07-14 2023-06-30 13F IRON MTN INC DEL COM 46284V101 52,003 -7,485 -12.58 2,955 -6.13 0.0393
2023-04-18 2023-03-31 13F IRON MTN INC DEL COM 46284V101 59,488 1,419 2.44 3,148 8.74 0.0460
2023-01-24 2022-12-31 13F IRON MTN INC DEL COM 46284V101 58,069 6,336 12.25 2,895 27.21 0.0469
2022-10-24 2022-09-30 13F IRON MTN INC DEL COM 46284V101 51,733 4,357 9.20 2,275 -1.39 0.0437
2022-08-02 2022-06-30 13F IRON MTN INC COM 46284V101 47,376 7,786 19.67 2,307 5.15 0.0463
2022-04-20 2022-03-31 13F IRON MTN INC COM 46284V101 39,590 620 1.59 2,194 7.60 0.0365
2022-01-31 2021-12-31 13F IRON MTN INC COM 46284V101 38,970 3,505 9.88 2,039 32.32 0.0320
2021-11-05 2021-09-30 13F IRON MTN INC COM 46284V101 35,465 -714 -1.97 1,541 0.65 0.0293
2021-08-12 2021-06-30 13F IRON MTN INC COM 46284V101 36,179 6,577 22.22 1,531 39.69 0.0281
2021-05-10 2021-03-31 13F IRON MTN INC COM 46284V101 29,602 -41 -0.14 1,096 25.40 0.0232
2021-02-11 2020-12-31 13F IRON MTN INC COM 46284V101 29,643 523 1.80 874 12.05 0.0190
2020-10-26 2020-09-30 13F IRON MTN INC COM 46284V101 29,120 78 0.27 780 2.90 0.0192
2020-08-14 2020-06-30 13F IRON MTN INC COM 46284V101 29,042 29,042 758 0.0196
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.