Iron Mountain Incorporated
MX ˙ BMV ˙ US46284V1017
SecurityMX:IRM1 / Iron Mountain Incorporated
InstitutionTCI Wealth Advisors, Inc.
Latest Disclosed Ownership2,756 shares
Latest Disclosed Value $ 281,515
TCI Wealth Advisors, Inc. reports 1.62% increase in ownership of IRM1 / Iron Mountain Incorporated

On April 27, 2026 - TCI Wealth Advisors, Inc. filed a 13F-HR form disclosing ownership of 2,756 shares of Iron Mountain Incorporated (MX:IRM1) valued at $281,515 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 2,712 shares of Iron Mountain Incorporated. This represents a change in shares of 1.62% 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)
2026-04-27 2026-03-31 13F IRON MTN INC DEL COM 46284V101 2,756 44 1.62 282 25.45 0.0149
2026-02-02 2025-12-31 13F IRON MTN INC DEL COM 46284V101 2,712 2,712 225 0.0124
2023-08-04 2023-06-30 13F IRON MTN INC DEL COM 46284V101 0 -945 -100.00 0 -100.00
2023-05-03 2023-03-31 13F IRON MTN INC DEL COM 46284V101 945 0 0.00 50 6.38 0.0065
2023-02-07 2022-12-31 13F IRON MTN INC DEL COM 46284V101 945 0 0.00 47 11.90 0.0065
2022-11-08 2022-09-30 13F IRON MTN INC DEL COM 46284V101 945 0 0.00 42 -8.70 0.0068
2022-07-19 2022-06-30 13F IRON MTN INC COM 46284V101 945 0 0.00 46 -11.54 0.0070
2022-04-29 2022-03-31 13F IRON MTN INC COM 46284V101 945 53 5.94 52 10.64 0.0078
2022-01-24 2021-12-31 13F IRON MTN INC COM 46284V101 892 8 0.90 47 23.68 0.0069
2021-10-29 2021-09-30 13F IRON MTN INC COM 46284V101 884 726 459.49 38 442.86 0.0058
2021-08-02 2021-06-30 13F IRON MTN INC COM 46284V101 158 0 0.00 7 16.67 0.0012
2021-04-29 2021-03-31 13F IRON MTN INC COM 46284V101 158 0 0.00 6 20.00 0.0025
2021-01-21 2020-12-31 13F IRON MTN INC COM 46284V101 158 -141 -47.16 5 -37.50 0.0022
2020-10-20 2020-09-30 13F IRON MTN INC COM 46284V101 299 299 8 0.0032
2020-07-20 2020-06-30 13F IRON MTN INC COM 46284V101 0 -62 -100.00 0 -100.00
2020-04-14 2020-03-31 13F IRON MTN INC COM 46284V101 62 44 244.44 1 0.00 0.0005
2020-01-27 2019-12-31 13F IRON MTN INC COM 46284V101 18 -127 -87.59 1 -80.00 0.0004
2019-10-17 2019-09-30 13F IRON MTN INC COM 46284V101 145 145 705.56 5 400.00 0.0022
2019-07-23 2019-06-30 13F IRON MTN INC COM 46284V101 0 -44 -100.00 0 -100.00
2019-04-11 2019-03-31 13F IRON MTN INC COM 46284V101 44 -2 -4.35 2 100.00 0.0009
2019-01-17 2018-12-31 13F IRON MTN INC COM 46284V101 46 46 1 0.0005
2013-10-18 2013-03-31 13F Iron Mountain Inc COM 462846106 0 -99 -100.00 0 -100.00
2013-10-18 2012-12-31 13F Iron Mountain Inc COM 462846106 99 99 3 0.0036
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.