Iron Mountain Incorporated
US ˙ NYSE ˙ US46284V1017

SecurityIRM / Iron Mountain Incorporated
InstitutionKovack Advisors, Inc.
Latest Disclosed Ownership3,141 shares
Latest Disclosed Value $ 318,977
Kovack Advisors, Inc. reports 5.93% decrease in ownership of IRM / Iron Mountain Incorporated

On May 12, 2026 - Kovack Advisors, Inc. filed a 13F-HR form disclosing ownership of 3,141 shares of Iron Mountain Incorporated (US:IRM) valued at $320,822 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 3,339 shares of Iron Mountain Incorporated. This represents a change in shares of -5.93% during the quarter. The current value of the position is $401,891 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)
2026-05-12 2026-03-31 13F IRON MTN INC DEL COM 46284V101 3,141 -198 -5.93 319 15.22 0.0170
2026-02-17 2025-12-31 13F/A-1 IRON MTN INC DEL COM 46284V101 3,339 3,339 277 0.0129
2025-05-06 2025-03-31 13F IRON MTN INC DEL COM 46284V101 0 -2,542 -100.00 0 -100.00
2025-02-05 2024-12-31 13F IRON MTN INC DEL COM 46284V101 2,542 -13 -0.51 267 -11.88 0.0262
2024-11-05 2024-09-30 13F IRON MTN INC DEL COM 46284V101 2,555 -269 -9.53 304 19.76 0.0322
2024-08-05 2024-06-30 13F IRON MTN INC DEL COM 46284V101 2,824 2,824 253 0.0279
2022-08-10 2022-06-30 13F IRON MOUNTAIN ORD ORD 46284V101 0 -10,863 -100.00 0 -100.00
2022-05-16 2022-03-31 13F IRON MOUNTAIN ORD ORD 46284V101 10,863 1,457 15.49 601 22.15 0.0617
2022-01-18 2021-12-31 13F IRON MOUNTAIN ORD ORD 46284V101 9,406 3,188 51.27 492 82.22 0.0475
2021-11-03 2021-09-30 13F IRON MOUNTAIN ORD ORD 46284V101 6,218 -4,222 -40.44 270 -38.91 0.0293
2021-07-29 2021-06-30 13F IRON MOUNTAIN ORD ORD 46284V101 10,440 -221 -2.07 442 11.90 0.0503
2021-05-04 2021-03-31 13F IRON MOUNTAIN ORD ORD 46284V101 10,661 -1,205 -10.16 395 12.86 0.0513
2021-01-14 2020-12-31 13F IRON MOUNTAIN ORD ORD 46284V101 11,866 -145 -1.21 350 8.70 0.0504
2020-11-02 2020-09-30 13F IRON MOUNTAIN ORD ORD 46284V101 12,011 12,011 322 0.0573
2020-04-30 2020-03-31 13F IRON MOUNTAIN ORD ORD 46284V101 0 -16,442 -100.00 0 -100.00
2020-01-29 2019-12-31 13F IRON MOUNTAIN ORD ORD 46284V101 16,442 -43 -0.26 524 -1.87 0.0937
2019-10-31 2019-09-30 13F IRON MOUNTAIN ORD ORD 46284V101 16,485 -789 -4.57 534 -1.29 0.1096
2019-08-14 2019-06-30 13F IRON MTN INC NEW COM COM 46284V101 17,274 278 1.64 541 -10.28 0.1237
2019-05-03 2019-03-31 13F IRON MTN INC NEW COM COM 46284V101 16,996 304 1.82 603 11.46 0.1504
2019-02-06 2018-12-31 13F IRON MTN INC NEW COM COM 46284V101 16,692 95 0.57 541 -5.58 0.1582
2018-10-09 2018-09-30 13F IRON MTN INC NEW COM COM 46284V101 16,597 -218 -1.30 573 -2.72 0.1478
2018-08-01 2018-06-30 13F IRON MTN INC NEW COM COM 46284V101 16,815 2,667 18.85 589 26.67 0.1645
2018-05-15 2018-03-31 13F IRON MTN INC NEW COM COM 46284V101 14,148 14,148 465 0.1167
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.