Iron Mountain Incorporated
DE ˙ DB ˙ US46284V1017
109,55 € ↓ -0,60 (-0,54%)
2026-06-04
DEL PRIS
SecurityDE:I5M / Iron Mountain Incorporated
InstitutionPlimoth Trust Co Llc
Latest Disclosed Ownership10,328 shares
Latest Disclosed Value $ 1,054,902
Plimoth Trust Co Llc ownership in I5M / Iron Mountain Incorporated

On April 27, 2026 - Plimoth Trust Co Llc filed a 13F-HR form disclosing ownership of 10,328 shares of Iron Mountain Incorporated (DE:I5M) valued at $916,920 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 10,328 shares of Iron Mountain Incorporated. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,131,432 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)
2026-04-27 2026-03-31 13F Iron Mountain Com 46284V101 10,328 0 0.00 1,055 23.13 0.1227
2026-01-27 2025-12-31 13F Iron Mountain Com 46284V101 10,328 0 0.00 857 -18.63 0.1909
2025-10-17 2025-09-30 13F Iron Mountain Com 46284V101 10,328 0 0.00 1,053 -0.66 0.2384
2025-07-22 2025-06-30 13F Iron Mountain Com 46284V101 10,328 0 0.00 1,059 19.26 0.2540
2025-04-21 2025-03-31 13F Iron Mountain Com 46284V101 10,328 0 0.00 889 -18.16 0.2315
2025-01-23 2024-12-31 13F Iron Mountain Com 46284V101 10,328 0 0.00 1,086 -11.57 0.2788
2024-10-21 2024-09-30 13F Iron Mountain Com 46284V101 10,328 0 0.00 1,227 32.65 0.3092
2024-07-23 2024-06-30 13F Iron Mountain Com 46284V101 10,328 -250 -2.36 926 9.08 0.2470
2024-04-18 2024-03-31 13F Iron Mountain Com 46284V101 10,578 -420 -3.82 848 10.27 0.2261
2024-01-26 2023-12-31 13F Iron Mountain Com 46284V101 10,998 0 0.00 770 17.76 0.2221
2023-10-20 2023-09-30 13F Iron Mountain Com 46284V101 10,998 -280 -2.48 654 2.03 0.2048
2023-07-24 2023-06-30 13F Iron Mountain Com 46284V101 11,278 1,200 11.91 641 20.08 0.1917
2023-04-26 2023-03-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 533 0.1655
2023-01-19 2022-12-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 1 -100.00 0.1619
2022-10-18 2022-09-30 13F Iron Mountain Com 46284V101 10,078 0 0.00 443 -9.78 0.1531
2022-07-15 2022-06-30 13F Iron Mountain Com 46284V101 10,078 0 0.00 491 -12.01 0.1549
2022-04-25 2022-03-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 558 5.88 0.1482
2022-01-27 2021-12-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 527 20.32 0.1336
2021-10-22 2021-09-30 13F Iron Mountain Com 46284V101 10,078 0 0.00 438 2.58 0.1238
2021-07-20 2021-06-30 13F Iron Mountain Com 46284V101 10,078 0 0.00 427 14.48 0.1198
2021-04-14 2021-03-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 373 25.59 0.1101
2021-01-22 2020-12-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 297 10.00 0.0928
2020-10-27 2020-09-30 13F Iron Mountain Com 46284V101 10,078 0 0.00 270 2.66 0.0905
2020-07-20 2020-06-30 13F Iron Mountain Com 46284V101 10,078 0 0.00 263 9.58 0.0935
2020-04-22 2020-03-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 240 -25.23 0.1006
2020-01-29 2019-12-31 13F Iron Mountain Com 46284V101 10,078 0 0.00 321 -1.53 0.1038
2019-10-28 2019-09-30 13F Iron Mountain Com 46284V101 10,078 -600 -5.62 326 -2.40 0.1069
2019-08-05 2019-06-30 13F Iron Mountain Com 46284V101 10,678 0 0.00 334 -11.87 0.1099
2019-04-19 2019-03-31 13F Iron Mountain Com 46284V101 10,678 -1,700 -13.73 379 -5.49 0.1261
2019-01-25 2018-12-31 13F Iron Mountain Com 46284V101 12,378 0 0.00 401 -6.09 0.1479
2018-12-13 2018-09-30 13F Iron Mountain Com 46284V101 12,378 0 0.00 427 -1.39 0.1384
2018-12-12 2018-06-30 13F Iron Mountain Com 46284V101 12,378 0 0.00 433 6.39 0.1484
2018-12-21 2018-03-31 13F Iron Mountain Com 46284V101 12,378 12,378 407 0.1406
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.