Iron Mountain Incorporated
MX ˙ BMV ˙ US46284V1017
SecurityMX:IRM1 / Iron Mountain Incorporated
InstitutionPerigon Wealth Management, LLC
Latest Disclosed Ownership3,748 shares
Latest Disclosed Value $ 382,852
Perigon Wealth Management, LLC reports 13.68% increase in ownership of IRM1 / Iron Mountain Incorporated

On April 10, 2026 - Perigon Wealth Management, LLC filed a 13F-HR form disclosing ownership of 3,748 shares of Iron Mountain Incorporated (MX:IRM1) valued at $382,852 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 3,297 shares of Iron Mountain Incorporated. This represents a change in shares of 13.68% during the quarter.

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)
2026-04-10 2026-03-31 13F IRON MTN INC DEL COM 46284V101 3,748 451 13.68 383 39.93 0.0069
2026-01-16 2025-12-31 13F IRON MTN INC DEL COM 46284V101 3,297 -56 -1.67 273 -19.94 0.0049
2025-10-17 2025-09-30 13F IRON MTN INC DEL COM 46284V101 3,353 -47 -1.38 342 -2.01 0.0070
2025-07-16 2025-06-30 13F IRON MTN INC DEL COM 46284V101 3,400 -328 -8.80 349 8.75 0.0081
2025-04-23 2025-03-31 13F IRON MTN INC DEL COM 46284V101 3,728 -356 -8.72 321 -28.89 0.0082
2025-01-22 2024-12-31 13F IRON MTN INC DEL COM 46284V101 4,084 -254 -5.86 450 -12.62 0.0111
2024-10-16 2024-09-30 13F IRON MTN INC DEL COM 46284V101 4,338 160 3.83 516 37.70 0.0136
2024-08-02 2024-06-30 13F IRON MTN INC DEL COM 46284V101 4,178 -193 -4.42 374 6.86 0.0109
2024-04-29 2024-03-31 13F IRON MTN INC DEL COM 46284V101 4,371 445 11.33 351 27.74 0.0106
2024-01-29 2023-12-31 13F IRON MTN INC DEL COM 46284V101 3,926 406 11.53 275 31.10 0.0090
2023-10-30 2023-09-30 13F IRON MTN INC DEL COM 46284V101 3,520 3,520 209 0.0085
2023-08-02 2023-06-30 13F/A-1 IRON MTN INC DEL COM 46284V101 0 -4,227 -100.00 0 -100.00
2023-08-02 2023-06-30 13F IRON MTN INC DEL COM 46284V101 0 0
2023-05-03 2023-03-31 13F IRON MTN INC DEL COM 46284V101 4,227 -350 -7.65 224 -2.19 0.0127
2023-05-01 2022-12-31 13F/A-1 IRON MTN INC DEL COM 46284V101 4,577 -8,151 -64.04 228 -59.29 0.0141
2023-02-14 2022-12-31 13F IRON MTN INC DEL COM 46284V101 4,577 -8,151 228 0.0141
2022-12-13 2022-09-30 13F IRON MTN INC DEL COM 46284V101 12,728 12,728 560 0.0484
2021-05-17 2021-03-31 13F IRON MTN INC COM 46284V101 0 -1,444 -100.00 0 -100.00
2021-01-28 2020-12-31 13F IRON MTN INC COM 46284V101 1,444 1,444 -88.65 43 -92.32 0.0050
2014-02-18 2013-12-31 13F IRON MTN INC DEL COM 46284V101 0 -12,728 -100.00 0 -100.00
2022-11-14 2011-09-30 13F IRON MTN INC DEL COM 46284V101 12,728 12,728 560 0.0484
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.