Extra Space Storage Inc.
MX ˙ BMV ˙ US30225T1025
SecurityMX:EXR / Extra Space Storage Inc.
InstitutionM&t Bank Corp
Latest Disclosed Ownership27,613 shares
Latest Disclosed Value $ 3,620,893
M&t Bank Corp reports 23.32% decrease in ownership of EXR / Extra Space Storage Inc.

On May 12, 2026 - M&t Bank Corp filed a 13F-HR form disclosing ownership of 27,613 shares of Extra Space Storage Inc. (MX:EXR) valued at $3,620,893 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 30, 2026 disclosing 36,009 shares of Extra Space Storage Inc.. This represents a change in shares of -23.32% 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)
2026-05-12 2026-03-31 13F EXTRA SPACE STORAGE COM 30225T102 27,613 -8,396 -23.32 3,621 -22.80 0.0029
2026-01-30 2025-12-31 13F/A-1 EXTRA SPACE STORAGE COM 30225T102 36,009 22,452 165.61 4,689 145.37 0.0151
2026-01-28 2025-12-31 13F EXTRA SPACE STORAGE COM 30225T102 21,815 8,258 867 0.0005
2025-11-14 2025-09-30 13F EXTRA SPACE STORAGE COM 30225T102 13,557 -21,891 -61.76 1,911 -63.43 0.0064
2025-08-13 2025-06-30 13F EXTRA SPACE STORAGE COM 30225T102 35,448 491 1.40 5,226 0.67 0.0180
2025-04-30 2025-03-31 13F EXTRA SPACE STORAGE COM 30225T102 34,957 -4,027 -10.33 5,191 -11.01 0.0189
2025-02-06 2024-12-31 13F EXTRA SPACE STORAGE COM 30225T102 38,984 -5,039 -11.45 5,832 -26.48 0.0195
2024-11-19 2024-09-30 13F/A-1 EXTRA SPACE STORAGE COM 30225T102 44,023 -371 -0.84 7,933 14.97 0.0261
2024-11-15 2024-09-30 13F EXTRA SPACE STORAGE COM 30225T102 44,023 -371 7,933 0.0048
2024-07-31 2024-06-30 13F EXTRA SPACE STORAGE COM 30225T102 44,394 618 1.41 6,899 7.21 0.0235
2024-05-07 2024-03-31 13F EXTRA SPACE STORAGE COM 30225T102 43,776 -867 -1.94 6,435 -10.09 0.0224
2024-02-06 2023-12-31 13F EXTRA SPACE STORAGE COM 30225T102 44,643 -3,607 -7.48 7,157 22.01 0.0263
2023-11-02 2023-09-30 13F EXTRA SPACE STORAGE COM 30225T102 48,250 27,710 134.91 5,866 91.89 0.0234
2023-08-09 2023-06-30 13F EXTRA SPACE STORAGE COM 30225T102 20,540 305 1.51 3,057 -7.28 0.0114
2023-05-11 2023-03-31 13F EXTRA SPACE STORAGE COM 30225T102 20,235 753 3.87 3,297 15.00 0.0128
2023-02-13 2022-12-31 13F/A-1 EXTRA SPACE STORAGE COM 30225T102 19,482 -195 -0.99 2,867 -15.65 0.0115
2023-02-13 2022-12-31 13F EXPONENT COM 30225T102 8,427 -11,250 1,214 0.0049
2022-11-17 2022-09-30 13F/A-1 EXTRA SPACE STORAGE COM 30225T102 19,677 391 2.03 3,399 3.91 0.0151
2022-11-14 2022-09-30 13F EXTRA SPACE STORAGE COM 30225T102 19,677 391 3,399 0.0029
2022-08-05 2022-06-30 13F EXTRA SPACE STORAGE COM 30225T102 19,286 1,455 8.16 3,271 -10.80 0.0154
2022-05-09 2022-03-31 13F EXTRA SPACE STORAGE COM 30225T102 17,831 1,868 11.70 3,667 1.33 0.0162
2022-02-07 2021-12-31 13F EXTRA SPACE STORAGE COM 30225T102 15,963 2,037 14.63 3,619 54.66 0.0152
2021-10-28 2021-09-30 13F EXTRA SPACE STORAGE COM 30225T102 13,926 178 1.29 2,340 3.95 0.0105
2021-08-13 2021-06-30 13F EXTRA SPACE STORAGE COM 30225T102 13,748 343 2.56 2,251 26.67 0.0099
2021-05-06 2021-03-31 13F EXTRA SPACE STORAGE COM 30225T102 13,405 682 5.36 1,777 20.56 0.0077
2021-02-12 2020-12-31 13F EXTRA SPACE STORAGE COM 30225T102 12,723 -3,092 -19.55 1,474 -12.83 0.0065
2020-11-06 2020-09-30 13F EXTRA SPACE STORAGE COM 30225T102 15,815 -4,486 -22.10 1,691 -9.86 0.0083
2020-07-29 2020-06-30 13F EXTRA SPACE STORAGE COM 30225T102 20,301 -5,705 -21.94 1,876 -24.66 0.0101
2020-05-14 2020-03-31 13F EXTRA SPACE STORAGE COM 30225T102 26,006 7,575 41.10 2,490 27.89 0.0147
2020-02-07 2019-12-31 13F EXTRA SPACE STORAGE COM 30225T102 18,431 -4,473 -19.53 1,947 -27.21 0.0091
2019-11-12 2019-09-30 13F EXTRA SPACE STORAGE COM 30225T102 22,904 4,149 22.12 2,675 34.49 0.0133
2019-08-12 2019-06-30 13F EXTRA SPACE STORAGE COM 30225T102 18,755 -600 -3.10 1,989 0.86 0.0104
2019-05-15 2019-03-31 13F EXTRA SPACE STORAGE COM 30225T102 19,355 -500 -2.52 1,972 9.80 0.0103
2019-02-01 2018-12-31 13F EXTRA SPACE STORAGE COM 30225T102 19,855 472 2.44 1,796 6.97 0.0103
2018-11-09 2018-09-30 13F EXTRA SPACE STORAGE COM 30225T102 19,383 8,015 70.50 1,679 47.93 0.0084
2018-08-10 2018-06-30 13F EXTRA SPACE STORAGE COM 30225T102 11,368 -355 -3.03 1,135 10.73 0.0061
2018-05-04 2018-03-31 13F EXTRA SPACE STORAGE COM 30225T102 11,723 1,243 11.86 1,025 11.90 0.0055
2018-02-06 2017-12-31 13F EXTRA SPACE STORAGE COM 30225T102 10,480 -132 -1.24 916 8.02 0.0048
2017-11-13 2017-09-30 13F EXTRA SPACE STORAGE COM 30225T102 10,612 357 3.48 848 6.13 0.0046
2017-08-11 2017-06-30 13F EXTRA SPACE STORAGE COM 30225T102 10,255 -4,744 -31.63 799 -28.41 0.0047
2017-05-10 2017-03-31 13F EXTRA SPACE STORAGE COM 30225T102 14,999 -3,915 -20.70 1,116 -23.61 0.0067
2017-02-14 2016-12-31 13F EXTRA SPACE STORAGE COM 30225T102 18,914 -99 -0.52 1,461 -3.25 0.0091
2016-11-04 2016-09-30 13F EXTRA SPACE STORAGE COM 30225T102 19,013 -8,876 -31.83 1,510 -41.47 0.0096
2016-08-04 2016-06-30 13F EXTRA SPACE STORAGE COM 30225T102 27,889 -2,214 -7.35 2,580 -8.25 0.0174
2016-05-11 2016-03-31 13F EXTRA SPACE STORAGE COM 30225T102 30,103 13,421 80.45 2,812 91.16 0.0190
2016-02-12 2015-12-31 13F EXTRA SPACE STORAGE COM 30225T102 16,682 -234 -1.38 1,471 12.55 0.0098
2015-11-13 2015-09-30 13F EXTRA SPACE STORAGE COM 30225T102 16,916 -33,690 -66.57 1,307 -60.41 0.0089
2015-08-14 2015-06-30 13F EXTRA SPACE STORAGE COM 30225T102 50,606 34,313 210.60 3,301 200.09 0.0199
2015-05-14 2015-03-31 13F EXTRA SPACE STORAGE COM 30225T102 16,293 112 0.69 1,100 15.91 0.0069
2015-02-12 2014-12-31 13F EXTRA SPACE STORAGE COM 30225T102 16,181 189 1.18 949 15.03 0.0059
2014-11-14 2014-09-30 13F EXTRA SPACE STORAGE COM 30225T102 15,992 15,992 825 0.0058
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.