Iron Mountain Incorporated
DE ˙ DB ˙ US46284V1017
111,85 € ↑2,30 (2,10%)
2026-06-05
DEL PRIS
SecurityDE:I5M / Iron Mountain Incorporated
InstitutionJump Financial, LLC
Latest Disclosed Ownership9,234 shares
Latest Disclosed Value $ 943,161
Jump Financial, LLC ownership in I5M / Iron Mountain Incorporated

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 9,234 shares of Iron Mountain Incorporated (DE:I5M) valued at $819,795 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Iron Mountain Incorporated. The current value of the position is $1,032,823 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)
2026-05-14 2026-03-31 13F Iron Mountain REIT 46284V101 9,234 9,234 943 0.0126
2026-02-17 2025-12-31 13F Iron Mountain REIT 46284V101 0 -9,017 -100.00 0 -100.00
2025-11-13 2025-09-30 13F Iron Mountain REIT 46284V101 9,017 5,502 156.53 919 155.28 0.0110
2025-08-13 2025-06-30 13F Iron Mountain REIT 46284V101 3,515 -297,698 -98.83 361 -98.61 0.0040
2025-05-14 2025-03-31 13F Iron Mountain REIT 46284V101 301,213 264,727 725.56 25,916 575.78 0.3563
2025-02-13 2024-12-31 13F Iron Mountain REIT 46284V101 36,486 32,266 764.60 3,835 665.47 0.0801
2024-11-14 2024-09-30 13F Iron Mountain REIT 46284V101 4,220 1,265 42.81 501 89.77 0.0102
2024-11-14 2024-06-30 13F/A-1 Iron Mountain REIT 46284V101 2,955 -33,344 -91.86 265 -90.93 0.0053
2024-08-14 2024-06-30 13F IRON MTN INC DEL REIT 46284V101 2,955 -33,344 265 0.0053
2024-05-13 2024-03-31 13F IRON MTN INC DEL REIT 46284V101 36,299 -3,711 -9.28 2,912 4.00 0.0797
2024-10-21 2023-12-31 13F/A-1 Iron Mountain REIT 46284V101 40,010 14,046 54.10 2,800 81.40 0.0921
2024-02-07 2023-12-31 13F IRON MTN INC DEL REIT 46284V101 40,010 14,046 2,800 0.0925
2024-10-21 2023-09-30 13F/A-1 Iron Mountain REIT 46284V101 25,964 25,964 1,544 0.0583
2023-11-07 2023-09-30 13F IRON MTN INC DEL REIT 46284V101 25,964 25,964 1,544 0.0590
2022-11-07 2022-09-30 13F IRON MTN INC REIT 46284V101 0 -7,720 -100.00 0 -100.00
2022-08-09 2022-06-30 13F IRON MTN INC REIT 46284V101 7,720 7,720 376 0.0162
2022-02-10 2021-12-31 13F IRON MTN INC REIT 46284V101 0 -5,964 -100.00 0 -100.00
2021-11-12 2021-09-30 13F IRON MTN INC REIT 46284V101 5,964 5,964 260 0.0188
2021-08-13 2021-06-30 13F IRON MTN INC REIT 46284V101 0 -12,400 -100.00 0 -100.00
2021-05-17 2021-03-31 13F IRON MTN INC REIT 46284V101 12,400 -2,390 -16.16 459 5.28 0.0429
2021-02-12 2020-12-31 13F IRON MTN INC REIT 46284V101 14,790 14,790 436 0.0742
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.