Iron Mountain Incorporated
MX ˙ BMV ˙ US46284V1017
SecurityMX:IRM1 / Iron Mountain Incorporated
InstitutionWedbush Securities Inc
Latest Disclosed Ownership9,007 shares
Latest Disclosed Value $ 920
Wedbush Securities Inc reports 3.09% decrease in ownership of IRM1 / Iron Mountain Incorporated

On April 21, 2026 - Wedbush Securities Inc filed a 13F-HR form disclosing ownership of 9,007 shares of Iron Mountain Incorporated (MX:IRM1) valued at $920 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 9,294 shares of Iron Mountain Incorporated.

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)
2026-04-21 2026-03-31 13F IRON MOUNTAIN COM 46284V101 9,007 -287 -3.09 1 0.0268
2026-02-12 2025-12-31 13F IRON MOUNTAIN COM 46284V101 9,294 1,037 12.56 1 0.0225
2025-11-06 2025-09-30 13F IRON MOUNTAIN COM 46284V101 8,257 74 0.90 1 0.0275
2025-08-06 2025-06-30 13F IRON MOUNTAIN COM 46284V101 8,183 241 3.03 1 0.0293
2025-05-06 2025-03-31 13F IRON MOUNTAIN COM 46284V101 7,942 -89 -1.11 1 0.0251
2025-02-13 2024-12-31 13F IRON MOUNTAIN COM 46284V101 8,031 192 2.45 1 0.0301
2024-11-08 2024-09-30 13F IRON MOUNTAIN COM 46284V101 7,839 -3,735 -32.27 1 -100.00 0.0346
2024-08-07 2024-06-30 13F IRON MOUNTAIN COM 46284V101 11,574 434 3.90 1 0.0371
2024-05-15 2024-03-31 13F IRON MOUNTAIN COM 46284V101 11,140 3,468 45.20 1 0.0334
2024-02-12 2023-12-31 13F IRON MOUNTAIN COM 46284V101 7,672 -718 -8.56 1 0.0238
2023-11-14 2023-09-30 13F IRON MOUNTAIN COM 46284V101 8,390 -754 -8.25 0 0.0248
2023-08-14 2023-06-30 13F IRON MOUNTAIN COM 46284V101 9,144 -58 -0.63 1 0.0248
2023-05-09 2023-03-31 13F IRON MOUNTAIN COM 46284V101 9,202 -400 -4.17 0 0.0244
2023-01-31 2022-12-31 13F IRON MOUNTAIN COM 46284V101 9,602 14 0.15 0 -100.00 0.0263
2022-10-18 2022-09-30 13F IRON MOUNTAIN COM 46284V101 9,588 74 0.78 422 -8.86 0.0237
2022-07-21 2022-06-30 13F IRON MOUNTAIN COM 46284V101 9,514 -1,365 -12.55 463 -23.22 0.0252
2022-04-19 2022-03-31 13F IRON MOUNTAIN COM 46284V101 10,879 223 2.09 603 8.06 0.0276
2022-01-13 2021-12-31 13F IRON MOUNTAIN COM 46284V101 10,656 1,573 17.32 558 41.27 0.0240
2021-10-08 2021-09-30 13F IRON MOUNTAIN COM 46284V101 9,083 1,415 18.45 395 21.54 0.0187
2021-07-27 2021-06-30 13F IRON MOUNTAIN COM 46284V101 7,668 983 14.70 325 31.58 0.0154
2021-04-26 2021-03-31 13F IRON MOUNTAIN COM 46284V101 6,685 -1,220 -15.43 247 6.01 0.0137
2021-02-16 2020-12-31 13F IRON MOUNTAIN INC COM 46284V101 7,905 -901 -10.23 233 -1.27 0.0204
2020-10-20 2020-09-30 13F IRON MOUNTAIN INC COM 46284V101 8,806 -1,369 -13.45 236 -11.28 0.0226
2020-07-16 2020-06-30 13F IRON MOUNTAIN INC COM 46284V101 10,175 1,300 14.65 266 26.07 0.0252
2020-04-17 2020-03-31 13F IRON MOUNTAIN INC COM 46284V101 8,875 150 1.72 211 -24.10 0.0251
2020-01-16 2019-12-31 13F IRON MOUNTAIN INC COM 46284V101 8,725 -2,265 -20.61 278 -21.91 0.0247
2019-10-17 2019-09-30 13F IRON MOUNTAIN INC COM 46284V101 10,990 3,740 51.59 356 56.83 0.0348
2019-08-01 2019-06-30 13F IRON MOUNTAIN INC COM 46284V101 7,250 7,250 227 0.0228
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.