Extra Space Storage Inc.
US ˙ NYSE ˙ US30225T1025

SecurityEXR / Extra Space Storage Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership1,835 shares
Latest Disclosed Value $ 259
Shell Asset Management Co reports 25.59% decrease in ownership of EXR / Extra Space Storage Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 1,835 shares of Extra Space Storage Inc. (US:EXR) valued at $258,625 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 2,466 shares of Extra Space Storage Inc.. The current value of the position is $267,671 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)
2025-11-07 2025-09-30 13F EXTRA SPACE STORAGE COM 30225T102 1,835 -631 -25.59 0 0.0260
2025-07-23 2025-06-30 13F EXTRA SPACE STORAGE COM 30225T102 2,466 1,069 76.52 0 0.0126
2025-05-14 2025-03-31 13F EXTRA SPACE STORAGE COM 30225T102 1,397 -117 -7.73 0 0.0098
2025-02-14 2024-12-31 13F EXTRA SPACE STORAGE COM 30225T102 1,514 -123 -7.51 0 0.0099
2024-11-07 2024-09-30 13F EXTRA SPACE STORAGE COM 30225T102 1,637 -1,294 -44.15 0 0.0130
2024-07-25 2024-03-31 13F EXTRA SPACE STORAGE COM 30225T102 2,931 -298 -9.23 0 0.0208
2024-02-14 2023-12-31 13F EXTRA SPACE STORAGE COM 30225T102 3,229 -1,902 -37.07 1 0.0239
2023-11-08 2023-09-30 13F EXTRA SPACE STORAGE COM 30225T102 5,131 5,131 1 0.0258
2021-11-04 2021-09-30 13F EXTRA SPACE STORAGE COM 30225T102 0 -2,810 -100.00 0 -100.00
2021-08-12 2021-06-30 13F EXTRA SPACE STORAGE COM 30225T102 2,810 542 23.90 460 52.82 0.0089
2021-05-10 2021-03-31 13F EXTRA SPACE STORAGE COM 30225T102 2,268 -16,165 -87.70 301 -85.91 0.0060
2021-02-16 2020-12-31 13F EXTRA SPACE STORAGE COM 30225T102 18,433 -1,441 -7.25 2,136 0.47 0.0441
2020-11-13 2020-09-30 13F EXTRA SPACE STORAGE COM 30225T102 19,874 -1,861 -8.56 2,126 5.88 0.0494
2020-08-10 2020-06-30 13F EXTRA SPACE STORAGE COM 30225T102 21,735 -676 -3.02 2,008 -6.43 0.0501
2020-05-11 2020-03-31 13F EXTRA SPACE STORAGE COM 30225T102 22,411 -463 -2.02 2,146 -11.18 0.0598
2020-02-13 2019-12-31 13F EXTRA SPACE STORAGE COM 30225T102 22,874 13,291 138.69 2,416 115.91 0.0520
2019-11-12 2019-09-30 13F EXTRA SPACE STORAGE COM 30225T102 9,583 -1,646 -14.66 1,119 -6.05 0.0256
2019-08-12 2019-06-30 13F EXTRA SPACE STORAGE COM 30225T102 11,229 83 0.74 1,191 4.84 0.0264
2019-05-09 2019-03-31 13F EXTRA SPACE STORAGE COM 30225T102 11,146 0 0.00 1,136 12.70 0.0250
2019-02-13 2018-12-31 13F EXTRA SPACE STORAGE COM 30225T102 11,146 2,877 34.79 1,008 40.78 0.0251
2018-11-13 2018-09-30 13F EXTRA SPACE STORAGE COM 30225T102 8,269 -1,388 -14.37 716 -25.73 0.0141
2018-08-10 2018-06-30 13F EXTRA SPACE STORAGE COM 30225T102 9,657 0 0.00 964 14.22 0.0198
2018-05-14 2018-03-31 13F EXTRA SPACE STORAGE COM 30225T102 9,657 3,593 59.25 844 59.25 0.0168
2018-02-09 2017-12-31 13F EXTRA SPACE STORAGE COM 30225T102 6,064 305 5.30 530 15.22 0.0105
2017-10-20 2017-09-30 13F/A-1 EXTRA SPACE STORAGE COM 30225T102 5,759 -4,194 -42.14 460 -40.72 0.0102
2017-07-26 2017-06-30 13F EXTRA SPACE STORAGE COM 30225T102 9,953 0 0.00 776 4.86 0.0193
2017-04-26 2017-03-31 13F EXTRA SPACE STORAGE COM 30225T102 9,953 245 2.52 740 -1.33 0.0189
2017-01-10 2016-12-31 13F EXTRA SPACE STORAGE COM 30225T102 9,708 1,604 19.79 750 16.46 0.0203
2016-10-28 2016-09-30 13F EXTRA SPACE STORAGE COM 30225T102 8,104 -2,595 -24.25 644 -34.95 0.0154
2016-07-25 2016-06-30 13F EXTRA SPACE STORAGE COM 30225T102 10,699 4,814 81.80 990 80.00 0.0230
2016-05-11 2016-03-31 13F EXTRA SPACE STORAGE COM 30225T102 5,885 -202 -3.32 550 2.42 0.0132
2016-02-05 2015-12-31 13F EXTRA SPACE STORAGE COM 30225T102 6,087 6,087 0.00 537 0.0127
2015-10-13 2015-09-30 13F EXTRA SPACE STORAGE COM 30225T102 0 -7,123 -100.00 0 -100.00
2015-07-30 2015-06-30 13F EXTRA SPACE STORAGE COM 30225T102 7,123 7,123 465 0.0093
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.