Global Self Storage, Inc.
US ˙ NasdaqCM ˙ US37955N1063

SecuritySELF / Global Self Storage, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership61,129 shares
Latest Disclosed Value $ 312,370
Dimensional Fund Advisors Lp ownership in SELF / Global Self Storage, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 61,129 shares of Global Self Storage, Inc. (US:SELF) valued at $312,369 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 61,129 shares of Global Self Storage, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $313,592 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)
2026-05-07 2026-03-31 13F GLOBAL SELF STORAGE COM 37955N106 61,129 0 0.00 312 0.32 0.0000
2026-02-12 2025-12-31 13F GLOBAL SELF STORAGE COM 37955N106 61,129 -2 -0.00 312 1.30 0.0001
2025-11-12 2025-09-30 13F GLOBAL SELF STORAGE COM 37955N106 61,131 2,032 3.44 307 -2.54 0.0001
2025-08-12 2025-06-30 13F GLOBAL SELF STORAGE COM 37955N106 59,099 3,233 5.79 316 12.10 0.0001
2025-05-13 2025-03-31 13F GLOBAL SELF STORAGE COM 37955N106 55,866 0 0.00 282 -5.39 0.0001
2025-02-13 2024-12-31 13F GLOBAL SELF STORAGE COM 37955N106 55,866 0 0.00 298 2.06 0.0001
2024-11-07 2024-09-30 13F GLOBAL SELF STORAGE COM 37955N106 55,866 0 0.00 291 7.38 0.0001
2024-08-09 2024-06-30 13F GLOBAL SELF STORAGE COM 37955N106 55,866 2,152 4.01 272 13.39 0.0001
2024-05-10 2024-03-31 13F GLOBAL SELF STORAGE COM 37955N106 53,714 2,589 5.06 239 1.27 0.0001
2024-02-07 2023-12-31 13F GLOBAL SELF STORAGE COM 37955N106 51,125 -1,198 -2.29 237 -7.09 0.0001
2023-11-09 2023-09-30 13F GLOBAL SELF STORAGE COM 37955N106 52,323 0 0.00 254 -3.79 0.0001
2023-08-09 2023-06-30 13F GLOBAL SELF STORAGE COM 37955N106 52,323 2,500 5.02 264 3.13 0.0001
2023-05-12 2023-03-31 13F GLOBAL SELF STORAGE COM 37955N106 49,823 0 0.00 256 0.0001
2023-02-09 2022-12-31 13F GLOBAL SELF STORAGE COM 37955N106 49,823 0 0.00 0 -100.00 0.0001
2022-11-10 2022-09-30 13F GLOBAL SELF STORAGE COM 37955N106 49,823 0 0.00 291 3.93 0.0001
2022-08-12 2022-06-30 13F GLOBAL SELF STORAGE COM 37955N106 49,823 1,786 3.72 280 4.09 0.0001
2022-05-13 2022-03-31 13F GLOBAL SELF STORAGE COM 37955N106 48,037 16 0.03 269 -1.47 0.0001
2022-02-09 2021-12-31 13F GLOBAL SELF STORAGE COM 37955N106 48,021 1,851 4.01 273 14.71 0.0001
2021-11-12 2021-09-30 13F GLOBAL SELF STORAGE COM 37955N106 46,170 0 0.00 238 -1.24 0.0001
2021-08-12 2021-06-30 13F GLOBAL SELF STORAGE COM 37955N106 46,170 0 0.00 241 9.55 0.0001
2021-05-14 2021-03-31 13F GLOBAL SELF STORAGE COM 37955N106 46,170 0 0.00 220 18.92 0.0001
2021-03-08 2020-12-31 13F/A-2 GLOBAL SELF STORAGE COM 37955N106 46,170 0 0.00 185 0.00 0.0001
2021-02-11 2020-12-31 13F GLOBAL SELF STORAGE COM 37955N106 46,170 0 185 66.8122
2020-11-12 2020-09-30 13F GLOBAL SELF STORAGE COM 37955N106 46,170 0 0.00 185 2.21 0.0001
2020-08-13 2020-06-30 13F GLOBAL SELF STORAGE COM 37955N106 46,170 2,689 6.18 181 18.30 0.0001
2020-05-14 2020-03-31 13F GLOBAL SELF STORAGE COM 37955N106 43,481 3,121 7.73 153 -12.07 0.0001
2020-02-14 2019-12-31 13F GLOBAL SELF STORAGE COM 37955N106 40,360 10,681 35.99 174 23.40 0.0001
2019-11-12 2019-09-30 13F GLOBAL SELF STORAGE COM 37955N106 29,679 0 0.00 141 25.89 0.0001
2019-08-13 2019-06-30 13F GLOBAL SELF STORAGE COM 37955N106 29,679 0 0.00 112 -2.61 0.0000
2019-08-12 2019-03-31 13F/A-2 GLOBAL SELF STORAGE COM 37955N106 29,679 0 0.00 115 -0.86 0.0000
2019-05-10 2019-03-31 13F GLOBAL SELF STORAGE COM 37955N106 29,679 0 115
2019-02-26 2018-12-31 13F/A-1 GLOBAL SELF STORAGE COM 37955N106 29,679 3,718 14.32 116 6.42 0.0001
2019-02-13 2018-12-31 13F GLOBAL SELF STORAGE COM 37955N106 29,679 3,718 116
2018-11-13 2018-09-30 13F GLOBAL SELF STORAGE COM 37955N106 25,961 25,961 109 0.0000
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.