Iron Mountain Incorporated
US ˙ NYSE ˙ US46284V1017

SecurityIRM / Iron Mountain Incorporated
InstitutionCovestor Ltd
Latest Disclosed Ownership94 shares
Latest Disclosed Value $ 10
Covestor Ltd ownership in IRM / Iron Mountain Incorporated

On May 5, 2026 - Covestor Ltd filed a 13F-HR form disclosing ownership of 94 shares of Iron Mountain Incorporated (US:IRM) valued at $9,601 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 175 shares of Iron Mountain Incorporated. The current value of the position is $12,027 USD.

Covestor Ltd has a history of taking positions in derivatives of the underlying security (IRM) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

IRM / Iron Mountain Incorporated Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F IRON MOUNTAIN REIT 46284V101 94 -81 -46.29 0 0.0069
2026-02-06 2025-12-31 13F IRON MOUNTAIN REIT 46284V101 175 -4 -2.23 0 0.0079
2025-10-30 2025-09-30 13F IRON MOUNTAIN REIT 46284V101 179 -43 -19.37 0 0.0099
2025-08-11 2025-06-30 13F IRON MOUNTAIN REIT 46284V101 222 40 21.98 0 0.0136
2025-05-12 2025-03-31 13F IRON MOUNTAIN REIT 46284V101 182 -1 -0.55 0 0.0107
2025-02-13 2024-12-31 13F IRON MOUNTAIN REIT 46284V101 183 -16 -8.04 0 0.0119
2024-11-01 2024-09-30 13F IRON MOUNTAIN REIT 46284V101 199 -80 -28.67 0 0.0150
2024-08-09 2024-06-30 13F IRON MOUNTAIN REIT 46284V101 279 -6 -2.11 0 0.0162
2024-05-10 2024-03-31 13F IRON MOUNTAIN REIT 46284V101 285 33 13.10 0 0.0146
2024-02-09 2023-12-31 13F IRON MOUNTAIN REIT 46284V101 252 6 2.44 0 0.0123
2023-11-13 2023-09-30 13F IRON MOUNTAIN REIT 46284V101 246 -5 -1.99 0 0.0113
2023-08-11 2023-06-30 13F IRON MOUNTAIN REIT 46284V101 251 -30 -10.68 0 0.0107
2023-05-15 2023-03-31 13F IRON MOUNTAIN REIT 46284V101 281 -82 -22.59 0 -100.00 0.0131
2023-02-14 2022-12-31 13F/A-1 IRON MOUNTAIN REIT 46284V101 363 -27 -6.92 18 5.88 0.0147
2023-02-14 2022-12-31 13F IRON MOUNTAIN REIT 46284V101 363 -27 18 14.6781
2022-11-14 2022-09-30 13F IRON MOUNTAIN REIT 46284V101 390 -505 -56.42 17 -61.36 0.0150
2022-08-10 2022-06-30 13F IRON MTN INC COM 46284V101 895 -4,120 -82.15 44 -84.17 0.0349
2022-05-13 2022-03-31 13F IRON MTN INC COM 46284V101 5,015 2,610 108.52 278 120.63 0.1850
2022-02-10 2021-12-31 13F IRON MTN INC COM 46284V101 2,405 2,405 126 0.1765
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-11 2025-06-30 13F IRM 17APR25 85 P REIT Put 0 -100.00 0 n/a n/a n/a
2025-05-12 2025-03-31 13F IRM 17APR25 85 P REIT Put 2 0.00 0 n/a n/a n/a
2025-02-13 2024-12-31 13F IRM 20JUN25 85 P REIT Put 2 0 n/a n/a n/a
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.