Iron Mountain Incorporated
MX ˙ BMV ˙ US46284V1017
SecurityMX:IRM1 / Iron Mountain Incorporated
InstitutionDeutsche Bank Ag\
Latest Disclosed Ownership3,092,084 shares
Latest Disclosed Value $ 315,825,461
Deutsche Bank Ag\ ownership in IRM1 / Iron Mountain Incorporated

On May 6, 2026 - Deutsche Bank Ag\ filed a 13F-HR form disclosing ownership of 3,092,084 shares of Iron Mountain Incorporated (MX:IRM1) valued at $315,825,461 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,541,992 shares of Iron Mountain Incorporated. This represents a change in shares of 21.64% during the quarter.

Deutsche Bank Ag\ has a history of taking positions in derivatives of the underlying security (IRM1) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

MX:IRM1 / 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)
2026-05-06 2026-03-31 13F IRON MTN INC DEL COM 46284V101 3,092,084 550,092 21.64 315,825 49.78 0.1044
2026-02-11 2025-12-31 13F IRON MTN INC DEL COM 46284V101 2,541,992 -348,459 -12.06 210,858 -28.44 0.0687
2025-11-13 2025-09-30 13F IRON MTN INC DEL COM 46284V101 2,890,451 -539,030 -15.72 294,653 -16.24 0.0987
2025-08-12 2025-06-30 13F IRON MTN INC DEL COM 46284V101 3,429,481 284,654 9.05 351,762 30.00 0.1295
2025-05-09 2025-03-31 13F IRON MTN INC DEL COM 46284V101 3,144,827 -108,911 -3.35 270,581 -20.88 0.1072
2025-06-30 2024-12-31 13F/A-1 IRON MTN INC DEL COM 46284V101 3,253,738 -223,712 -6.43 342,000 -17.24 0.1339
2025-02-14 2024-12-31 13F IRON MTN INC DEL COM 46284V101 3,253,738 -223,712 342,000 0.1335
2025-06-26 2024-09-30 13F/A-1 IRON MTN INC DEL COM 46284V101 3,477,450 -446,273 -11.37 413,225 17.51 0.1682
2024-11-13 2024-09-30 13F IRON MTN INC DEL COM 46284V101 3,477,450 -446,273 413,225 0.1682
2025-06-12 2024-06-30 13F/A-1 IRON MTN INC DEL COM 46284V101 3,923,723 71,576 1.86 351,644 13.81 0.1586
2024-08-14 2024-06-30 13F IRON MTN INC DEL COM 46284V101 3,923,723 71,576 351,644 0.1587
2025-06-02 2024-03-31 13F/A-1 IRON MTN INC DEL COM 46284V101 3,852,147 -827,062 -17.68 308,981 -5.64 0.1434
2024-05-15 2024-03-31 13F IRON MTN INC DEL COM 46284V101 3,852,147 -827,062 308,981 0.1434
2024-02-14 2023-12-31 13F IRON MTN INC DEL COM 46284V101 4,679,209 107,664 2.36 327,451 20.48 0.1670
2023-11-24 2023-09-30 13F/A-1 IRON MTN INC DEL COM 46284V101 4,571,545 29,683 0.65 271,778 5.31 0.1755
2023-11-09 2023-09-30 13F IRON MTN INC DEL COM 46284V101 4,571,545 29,683 271,778 0.0358
2023-08-14 2023-06-30 13F IRON MTN INC DEL COM 46284V101 4,541,862 -42,334 -0.92 258,069 6.40 0.1372
2023-05-15 2023-03-31 13F IRON MTN INC DEL COM 46284V101 4,584,196 436,842 10.53 242,550 17.32 0.1351
2023-02-13 2022-12-31 13F IRON MTN INC DEL COM 46284V101 4,147,354 127,868 3.18 206,746 16.98 0.1190
2022-11-14 2022-09-30 13F IRON MTN INC DEL COM 46284V101 4,019,486 2,234,446 125.18 176,738 103.35 0.1067
2022-08-11 2022-06-30 13F IRON MTN INC COM 46284V101 1,785,040 161,015 9.91 86,914 -3.42 0.0485
2022-05-13 2022-03-31 13F IRON MTN INC COM 46284V101 1,624,025 -258,112 -13.71 89,988 -8.63 0.0420
2022-02-16 2021-12-31 13F/A-1 IRON MTN INC COM 46284V101 1,882,137 -78,464 -4.00 98,491 15.62 0.0443
2022-02-11 2021-12-31 13F IRON MTN INC COM 46284V101 1,882,137 -78,464 98,491 0.0049
2021-11-04 2021-09-30 13F IRON MTN INC COM 46284V101 1,960,601 -94,251 -4.59 85,187 -2.04 0.0404
2021-08-11 2021-06-30 13F IRON MTN INC COM 46284V101 2,054,852 -5,895 -0.29 86,961 14.02 0.0422
2021-05-13 2021-03-31 13F IRON MTN INC COM 46284V101 2,060,747 108,375 5.55 76,267 32.51 0.0411
2021-02-16 2020-12-31 13F IRON MTN INC COM 46284V101 1,952,372 648,027 49.68 57,556 64.71 0.0351
2020-11-12 2020-09-30 13F IRON MTN INC COM 46284V101 1,304,345 160,325 14.01 34,943 17.02 0.0240
2020-08-13 2020-06-30 13F IRON MTN INC COM 46284V101 1,144,020 -14,766 -1.27 29,860 8.27 0.0227
2020-05-14 2020-03-31 13F IRON MTN INC COM 46284V101 1,158,786 -429,038 -27.02 27,578 -45.49 0.0246
2020-02-14 2019-12-31 13F IRON MTN INC COM 46284V101 1,587,824 735,384 86.27 50,597 83.28 0.0330
2019-11-14 2019-09-30 13F IRON MTN INC COM 46284V101 852,440 -274,443 -24.35 27,606 -21.72 0.0192
2019-08-14 2019-06-30 13F IRON MTN INC COM 46284V101 1,126,883 76,051 7.24 35,266 -5.35 0.0207
2019-05-15 2019-03-31 13F IRON MTN INC COM 46284V101 1,050,832 -1,684,014 -61.58 37,258 -57.96 0.0222
2019-04-01 2018-12-31 13F/A-1 IRON MTN INC COM 46284V101 2,734,846 1,594,868 139.90 88,631 125.23 0.0629
2019-02-14 2018-12-31 13F IRON MTN INC COM 46284V101 2,734,846 1,953,047 88,631
2021-12-21 2018-09-30 13F/A-1 IRON MTN INC COM 46284V101 1,139,978 29,024 2.61 39,352 1.17 0.0199
2018-11-14 2018-09-30 13F IRON MTN INC COM 46284V101 781,799 -329,155 26,984 0.0186
2020-04-21 2018-06-30 13F/A-1 IRON MTN INC COM 46284V101 1,110,954 -271,652 -19.65 38,895 -14.38 0.0194
2018-08-14 2018-06-30 13F IRON MTN INC COM 46284V101 715,727 -666,879 25,055 16,641.4686
2019-10-23 2018-03-31 13F/A-2 IRON MTN INC COM 46284V101 1,382,606 -877,819 -38.83 45,429 -46.73 0.0217
2019-10-18 2018-03-31 13F/A-1 IRON MTN INC COM 46284V101 1,382,606 0 45,429 0.0217
2018-05-15 2018-03-31 13F IRON MTN INC COM 46284V101 965,668 -1,294,757 31,730
2018-02-14 2017-12-31 13F IRON MTN INC COM 46284V101 2,260,425 1,145,503 102.74 85,281 96.64 0.0546
2017-11-14 2017-09-30 13F IRON MTN INC COM 46284V101 1,114,922 177,833 18.98 43,368 34.70 0.0297
2017-08-11 2017-06-30 13F IRON MTN INC COM 46284V101 937,089 -50,899 -5.15 32,195 -8.64 0.0230
2017-05-15 2017-03-31 13F IRON MTN INC COM 46284V101 987,988 36,222 3.81 35,240 14.01 0.0260
2017-02-14 2016-12-31 13F IRON MTN INC COM 46284V101 951,766 44,005 4.85 30,910 -9.26 0.0249
2016-11-14 2016-09-30 13F IRON MTN INC COM 46284V101 907,761 -146,048 -13.86 34,064 -18.84 0.0241
2016-08-15 2016-06-30 13F IRON MTN INC COM 46284V101 1,053,809 8,843 0.85 41,969 18.45 0.0296
2016-05-16 2016-03-31 13F IRON MTN INC COM 46284V101 1,044,966 -354,491 -25.33 35,432 -6.26 0.0267
2016-02-16 2015-12-31 13F IRON MTN INC COM 46284V101 1,399,457 12,503 0.90 37,797 -12.14 0.0262
2015-11-17 2015-09-30 13F IRON MTN INC COM 46284V101 1,386,954 35,609 2.64 43,021 2.70 0.0333
2015-08-12 2015-06-30 13F IRON MTN INC COM 46284V101 1,351,345 -123,795 -8.39 41,889 -22.16 0.0267
2015-05-15 2015-03-31 13F IRON MTN INC COM 46284V101 1,475,140 32,843 2.28 53,812 -3.49 0.0335
2015-02-13 2014-12-31 13F IRON MTN COM 462846106 1,442,297 1,015,057 237.58 55,757 299.81 0.0344
2014-11-14 2014-09-30 13F IRON MTN COM 462846106 427,240 -310,863 -42.12 13,946 -46.70 0.0087
2014-08-15 2014-06-30 13F IRON MTN COM 462846106 738,103 122,949 19.99 26,165 54.30 0.0178
2014-05-15 2014-03-31 13F IRON MTN COM 462846106 615,154 31,668 5.43 16,957 -4.24 0.0120
2014-02-24 2013-12-31 13F/A-1 IRON MTN COM 462846106 583,486 -47,416 -7.52 17,707 3.89 0.0127
2014-02-18 2013-12-31 13F IRON MTN COM 462846106 583,486 17,707
2013-11-18 2013-09-30 13F IRON MTN COM 462846106 630,902 -518,856 -45.13 17,044 -44.29 0.0126
2013-08-16 2013-06-30 13F IRON MTN COM 046284610 1,149,758 1,149,758 30,592 0.0251
Disclosed Call 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
(%)
2015-02-13 2014-12-31 13F IRON MTN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-11-14 2014-09-30 13F IRON MTN COM Call 5,904 -76.47 192 -78.40 n/a n/a n/a
2014-08-15 2014-06-30 13F IRON MTN COM Call 25,088 2,703.13 889 88,800.00 n/a n/a n/a
2013-11-18 2013-09-30 13F IRON MTN COM Call 895 1 n/a n/a n/a
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
(%)
2019-04-01 2018-12-31 13F/A IRON MTN INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-12-21 2018-09-30 13F/A IRON MTN INC COM Put 500 0.00 17 -5.56 n/a n/a n/a
2018-11-14 2018-09-30 13F IRON MTN INC COM Put 500 17 n/a n/a n/a
2020-04-21 2018-06-30 13F/A IRON MTN INC COM Put 500 -58.33 18 -53.85 n/a n/a n/a
2018-08-14 2018-06-30 13F IRON MTN INC COM Put 500 17 n/a n/a n/a
2019-10-18 2018-03-31 13F/A IRON MTN INC COM Put 1,200 39 n/a n/a n/a
2019-10-23 2018-03-31 13F/A IRON MTN INC COM Put 1,200 0.00 39 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F IRON MTN INC COM Put 1,200 39 n/a n/a n/a
2015-05-15 2015-03-31 13F IRON MTN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-13 2014-12-31 13F IRON MTN COM Put 475 0.00 18 20.00 n/a n/a n/a
2014-11-14 2014-09-30 13F IRON MTN COM Put 475 375.00 15 1,400.00 n/a n/a n/a
2013-11-18 2013-09-30 13F IRON MTN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2013-08-16 2013-06-30 13F IRON MTN COM Put 100 1 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.