글로벌 셀프 스토리지, Inc.
US ˙ NasdaqCM ˙ US37955N1063

SecuritySELF / Global Self Storage, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership450,889 shares
Ownership 4.82%
Vanguard Group Inc ownership in SELF / Global Self Storage, Inc.

2021-02-10 - Vanguard Group Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 450,889 shares of Global Self Storage, Inc. (US:SELF). This represents 4.82 percent ownership of the company. In their previous filing dated 2020-02-12 , Vanguard Group Inc had reported owning 422,834 shares, indicating an increase of 6.63 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2021-02-10 2021-02-10 13G/A 422,834 450,889 6.63 4.82 -11.88
2020-02-12 2020-02-12 13G/A 412,711 422,834 2.45 5.47 2.05
2019-02-11 2019-02-11 13G/A 409,678 412,711 0.74 5.36 -0.19
2018-02-08 2018-02-08 13G 409,678 5.37

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F GLOBAL SELF STORAGE COM 37955N106 494,288 -19,447 -3.79 2,521 -2.48 0.0000
2025-11-07 2025-09-30 13F GLOBAL SELF STORAGE COM 37955N106 513,735 0 0.00 2,584 -5.80 0.0000
2025-08-11 2025-06-30 13F GLOBAL SELF STORAGE COM 37955N106 513,735 0 0.00 2,743 5.95 0.0000
2025-05-09 2025-03-31 13F GLOBAL SELF STORAGE COM 37955N106 513,735 0 0.00 2,589 -5.44 0.0000
2025-02-11 2024-12-31 13F GLOBAL SELF STORAGE COM 37955N106 513,735 0 0.00 2,738 2.32 0.0000
2024-11-13 2024-09-30 13F GLOBAL SELF STORAGE COM 37955N106 513,735 0 0.00 2,677 7.21 0.0000
2024-08-13 2024-06-30 13F GLOBAL SELF STORAGE COM 37955N106 513,735 0 0.00 2,497 9.19 0.0000
2024-05-10 2024-03-31 13F GLOBAL SELF STORAGE COM 37955N106 513,735 55 0.01 2,286 -3.95 0.0000
2024-03-11 2023-12-31 13F/A-1 GLOBAL SELF STORAGE COM 37955N106 513,680 21,534 4.38 2,381 -0.46 0.0001
2024-02-14 2023-12-31 13F GLOBAL SELF STORAGE COM 37955N106 513,680 21,534 2,381 0.0000
2023-12-18 2023-09-30 13F/A-1 GLOBAL SELF STORAGE COM 37955N106 492,146 50,322 11.39 2,392 7.17 0.0001
2023-11-14 2023-09-30 13F GLOBAL SELF STORAGE COM 37955N106 492,146 50,322 2,392 0.0000
2023-08-14 2023-06-30 13F GLOBAL SELF STORAGE COM 37955N106 441,824 13,700 3.20 2,231 1.41 0.0001
2023-07-14 2023-03-31 13F/A-1 GLOBAL SELF STORAGE COM 37955N106 428,124 5,150 1.22 2,201 6.59 0.0001
2023-05-15 2023-03-31 13F GLOBAL SELF STORAGE COM 37955N106 428,124 5,150 2,201 0.0000
2023-02-10 2022-12-31 13F GLOBAL SELF STORAGE COM 37955N106 422,974 304 0.07 2,064 -16.67 0.0001
2022-11-14 2022-09-30 13F GLOBAL SELF STORAGE COM 37955N106 422,670 0 0.00 2,477 4.08 0.0001
2022-08-12 2022-06-30 13F GLOBAL SELF STORAGE COM 37955N106 422,670 -3,200 -0.75 2,380 -0.21 0.0001
2022-05-13 2022-03-31 13F GLOBAL SELF STORAGE COM 37955N106 425,870 -4,346 -1.01 2,385 -2.73 0.0001
2022-02-14 2021-12-31 13F GLOBAL SELF STORAGE COM 37955N106 430,216 -29,428 -6.40 2,452 3.59 0.0001
2021-11-12 2021-09-30 13F GLOBAL SELF STORAGE COM 37955N106 459,644 0 0.00 2,367 -1.17 0.0001
2021-08-13 2021-06-30 13F GLOBAL SELF STORAGE COM 37955N106 459,644 0 0.00 2,395 9.46 0.0001
2021-05-14 2021-03-31 13F GLOBAL SELF STORAGE COM 37955N106 459,644 8,755 1.94 2,188 21.02 0.0001
2021-02-12 2020-12-31 13F GLOBAL SELF STORAGE COM 37955N106 450,889 0 0.00 1,808 0.00 0.0001
2020-11-16 2020-09-30 13F GLOBAL SELF STORAGE COM 37955N106 450,889 0 0.00 1,808 4.15 0.0001
2020-08-14 2020-06-30 13F GLOBAL SELF STORAGE COM 37955N106 450,889 -229 -0.05 1,736 9.60 0.0001
2020-05-15 2020-03-31 13F GLOBAL SELF STORAGE COM 37955N106 451,118 28,284 6.69 1,584 -12.87 0.0001
2020-02-14 2019-12-31 13F GLOBAL SELF STORAGE COM 37955N106 422,834 0 0.00 1,818 -9.69 0.0001
2019-11-14 2019-09-30 13F GLOBAL SELF STORAGE COM 37955N106 422,834 -5,160 -1.21 2,013 25.11 0.0001
2019-08-14 2019-06-30 13F GLOBAL SELF STORAGE COM 37955N106 427,994 -32,517 -7.06 1,609 -9.51 0.0001
2019-05-15 2019-03-31 13F GLOBAL SELF STORAGE COM 37955N106 460,511 47,800 11.58 1,778 9.89 0.0001
2019-02-14 2018-12-31 13F GLOBAL SELF STORAGE COM 37955N106 412,711 100 0.02 1,618 -6.42 0.0001
2018-12-13 2018-09-30 13F/A-2 GLOBAL SELF STORAGE COM 37955N106 412,611 4,133 1.01 1,729 2.01 0.0001
2018-11-23 2018-09-30 13F/A-1 GLOBAL SELF STORAGE COM 37955N106 412,611 0 1,729 0.0001
2018-11-14 2018-09-30 13F GLOBAL SELF STORAGE COM 37955N106 412,611 4,133 1,729
2018-08-14 2018-06-30 13F GLOBAL SELF STORAGE COM 37955N106 408,478 0 0.00 1,695 -6.09 0.0001
2018-05-15 2018-03-31 13F GLOBAL SELF STORAGE COM 37955N106 408,478 -1,200 -0.29 1,805 -4.85 0.0001
2018-02-14 2017-12-31 13F GLOBAL SELF STORAGE COM 37955N106 409,678 -6,500 -1.56 1,897 -4.24 0.0001
2017-11-14 2017-09-30 13F GLOBAL SELF STORAGE COM 37955N106 416,178 49,061 13.36 1,981 8.55 0.0001
2017-08-24 2017-06-30 13F/A-1 GLOBAL SELF STORAGE COM 37955N106 367,117 1,649 0.45 1,825 4.89 0.0001
2017-08-11 2017-06-30 13F GLOBAL SELF STORAGE COM 37955N106 367,117 1,649 1,825
2017-05-12 2017-03-31 13F GLOBAL SELF STORAGE COM 37955N106 365,468 0 0.00 1,740 -0.17 0.0001
2017-02-14 2016-12-31 13F GLOBAL SELF STORAGE COM 37955N106 365,468 0 0.00 1,743 -9.31 0.0001
2016-11-14 2016-09-30 13F GLOBAL SELF STORAGE COM 37955N106 365,468 3,000 0.83 1,922 -1.64 0.0001
2016-08-10 2016-06-30 13F GLOBAL SELF STORAGE COM 37955N106 362,468 53,945 17.48 1,954 30.01 0.0001
2016-05-13 2016-03-31 13F GLOBAL SELF STORAGE COM 37955N106 308,523 308,523 1,503 0.0001
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.