Iron Mountain Incorporated
US ˙ NYSE ˙ US46284V1017

SecurityIRM / Iron Mountain Incorporated
InstitutionIHT Wealth Management, LLC
Latest Disclosed Ownership6,868 shares
Latest Disclosed Value $ 701,511
IHT Wealth Management, LLC reports 57.94% decrease in ownership of IRM / Iron Mountain Incorporated

On May 15, 2026 - IHT Wealth Management, LLC filed a 13F-HR form disclosing ownership of 6,868 shares of Iron Mountain Incorporated (US:IRM) valued at $701,498 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 16,329 shares of Iron Mountain Incorporated. This represents a change in shares of -57.94% during the quarter. The current value of the position is $894,557 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)
2026-05-15 2026-03-31 13F Iron Mountain COM 46284V101 6,868 -9,461 -57.94 702 -48.23 0.0162
2026-02-17 2025-12-31 13F Iron Mountain COM 46284V101 16,329 39 0.24 1,355 -18.43 0.0329
2025-11-14 2025-09-30 13F Iron Mountain COM 46284V101 16,290 -661 -3.90 1,661 -4.49 0.0420
2025-08-14 2025-06-30 13F Iron Mountain COM 46284V101 16,951 -138 -0.81 1,739 18.23 0.0478
2025-05-15 2025-03-31 13F Iron Mountain COM 46284V101 17,089 6,668 63.99 1,470 34.25 0.0459
2025-02-14 2024-12-31 13F Iron Mountain COM 46284V101 10,421 -1,680 -13.88 1,095 -23.75 0.0353
2024-11-14 2024-09-30 13F Iron Mountain COM 46284V101 12,101 2,479 25.76 1,437 66.59 0.0408
2024-08-14 2024-06-30 13F IRON MOUNTAIN COM 46284V101 9,622 346 3.73 862 15.86 0.0322
2024-05-15 2024-03-31 13F Iron Mountain COM 46284V101 9,276 74 0.80 744 15.71 0.0298
2024-02-14 2023-12-31 13F IRON MOUNTAIN COM 46284V101 9,202 407 4.63 644 23.18 0.0287
2023-11-14 2023-09-30 13F IRON MOUNTAIN COM 46284V101 8,795 35 0.40 523 5.03 0.0265
2023-08-15 2023-06-30 13F IRON MOUNTAIN COM 46284V101 8,760 505 6.12 498 13.99 0.0259
2023-05-15 2023-03-31 13F IRON MOUNTAIN COM 46284V101 8,255 35 0.43 437 6.60 0.0249
2023-02-15 2022-12-31 13F IRON MOUNTAIN COM 46284V101 8,220 1,189 16.91 410 32.36 0.0257
2022-11-22 2022-09-30 13F IRON MOUNTAIN COM 46284V101 7,031 2,914 70.78 309 54.50 0.0235
2022-08-15 2022-06-30 13F IRON MOUNTAIN COM 46284V101 4,117 94 2.34 200 -10.31 0.0176
2022-05-16 2022-03-31 13F IRON MOUNTAIN COM 46284V101 4,023 43 1.08 223 7.21 0.0169
2022-02-14 2021-12-31 13F IRON MOUNTAIN COM 46284V101 3,980 3,980 208 0.0153
2018-08-13 2018-06-30 13F IRON MOUNTAIN COM 46284V101 0 -1,658 -100.00 0 -100.00
2018-05-14 2018-03-31 13F IRON MOUNTAIN COM 46284V101 1,658 2 0.12 54 -11.48 0.0145
2018-02-14 2017-12-31 13F IRON MOUNTAIN COM 46284V101 1,656 1,549 1,447.66 61 1,425.00 0.0161
2017-11-14 2017-09-30 13F IRON MOUNTAIN COM 46284V101 107 0 0.00 4 -63.64 0.0017
2017-08-14 2017-06-30 13F/A-1 IRON MOUNTAIN COM 46284V101 107 0 0.00 11 175.00 0.0053
2017-08-14 2017-06-30 13F IRON MOUNTAIN COM 46284V101 107 0 4
2017-05-15 2017-03-31 13F IRON MOUNTAIN COM 46284V101 107 0 0.00 4 0.00 0.0027
2017-02-14 2016-12-31 13F IRON MOUNTAIN COM 46284V101 107 107 4 0.0030
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.