Form 8-K

8-K — Global Self Storage, Inc.

Accession: 0001193125-26-340252

Filed: 2026-08-07

Period: 2026-08-07

CIK: 0001031235

SIC: 6798 (REAL ESTATE INVESTMENT TRUSTS)

Item: Results of Operations and Financial Condition

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — self-20260807.htm (Primary)

EX-99.1 (self-ex99_1.htm)

GRAPHIC (img78417561_0.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: self-20260807.htm · Sequence: 1

8-K

0001031235false00010312352026-08-072026-08-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 07, 2026

GLOBAL SELF STORAGE, INC.

(Exact name of registrant as specified in its charter)

Maryland

001-12681

13-3926714

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

3814 Route 44

Millbrook, New York

12545

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: (212) 785-0900

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange on which registered

Common Stock, $0.01 par value

SELF

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On August 7, 2026, Global Self Storage, Inc. (the “Company”) reported its financial results for the period ended June 30, 2026. A copy of the Company’s earnings press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 7.01 Regulation FD Disclosure.

The information included in Item 2.02 of this Current Report on Form 8-K (including Exhibit 99.1 hereto) shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing made by the Company under the Exchange Act or the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

The Company believes that certain statements in the information attached as Exhibit 99.1 may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are made on the basis of management’s views and assumptions regarding future events and business performance as of the time the statements are made. Actual results may differ materially from those expressed or implied. Information concerning factors that could cause actual results to differ materially from those in forward-looking statements is contained from time to time in the Company’s filings with the Securities and Exchange Commission.

Item 9.01 Financial Statements and Exhibits.

(a) Not applicable.

(b) Not applicable.

(d) Exhibits. The following exhibits are being furnished herewith to this Current Report on Form 8-K.

Exhibit No.

Description

99.1

Global Self Storage, Inc. Earnings Press Release, dated August 7, 2026, reporting the financial results for the period ended June 30, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

GLOBAL SELF STORAGE, INC.

Date:

August 7, 2026

By:

/s/ Mark C. Winmill

Name: Mark C. Winmill

Title: Chief Executive Officer, President and Chairman of

the Board of Directors

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EX-99.1

EXHIBIT 99.1

Global Self Storage Reports Second Quarter 2026 Results

Strong Occupancy and Maintained Record-Level Tenant Duration of Stay Driven by Continued Operational Excellence

Millbrook, NY – August 7, 2026 – Global Self Storage, Inc. (NASDAQ: SELF), a real estate investment trust that owns, operates, manages, acquires, and redevelops self-storage properties, reported results for the second quarter ended June 30, 2026. All comparisons are to the same year-ago period unless otherwise noted.

Q2 2026 Highlights

•

Total revenues increased 0.6% to $3.2 million.

•

Net income increased 24.9% to $830,000 or $0.07 per diluted share.

•

Same-store revenues increased 0.6% to $3.2 million.

•

Same-store cost of operations increased 8.1% to $1.3 million.

•

Same-store net operating income (NOI) decreased 3.8% to $1.9 million (see definition of this and other non-GAAP measures and their reconciliation to GAAP, below).

•

Same-store occupancy as of June 30, 2026 was 94.7%, consistent with June 30, 2025.

•

Same-store average tenant duration of stay as of June 30, 2026 maintained a record-level of approximately 3.6 years, and increased compared to approximately 3.4 years as of June 30, 2025.

•

Funds from operations (FFO), a non-GAAP measure, decreased to $978,000 or $0.09 per diluted share.

•

Adjusted FFO (AFFO), a non-GAAP measure, decreased to $1.1 million or $0.09 per diluted share.

•

Maintained and covered quarterly dividend of $0.0725 per common share.

•

Capital resources as of June 30, 2026 totaled approximately $24.9 million, comprised of $7.5 million in cash, cash equivalents and restricted cash; $2.6 million in marketable securities; and $14.8 million available under the company’s revolving credit facility.

First Half 2026 Highlights

•

Total revenues increased 1.1% to $6.4 million.

•

Net income increased to $1.3 million or $0.11 per diluted share from $1.2 million or $0.11 per diluted share.

•

Same-store revenues increased 1.1% to $6.4 million.

•

Same-store cost of operations increased 9.1% to $2.6 million.

•

Same-store NOI decreased 3.8% to $3.7 million.

•

FFO decreased to $1.8 million or $0.16 per diluted share.

•

AFFO decreased to $2.0 million or $0.18 per diluted share.

•

Maintained and covered dividend of $0.145 per common share.

Dividend

On June 1, 2026, the company declared a quarterly dividend of $0.0725 per share, consistent with the quarterly dividend for the year-ago period and previous quarter. The quarterly distribution represents an annualized dividend rate of $0.29 per share.

Company Objective

The objective of Global Self Storage is to increase value over time for the benefit of its stockholders. Toward this end, the company will continue to execute its strategic business plan, which includes funding acquisitions, either directly or through joint ventures, and expansion projects at its existing properties. The company's board of directors regularly reviews the strategic business plan, with emphasis on capital formation, debt versus equity ratios, dividend policy, use of capital and debt, FFO and AFFO performance, and optimal cash levels.

The management of Global Self Storage believes that the company's continued operational performance and capital resources position it well to continue executing its strategic business plan.

Management Commentary

“In Q2, we delivered positive same-store revenue growth, strong same-store average occupancy of 94.7%, and maintained a record-level tenant duration of stay of 3.6 years at quarter-end,” said CEO and president of Global Self Storage, Mark C. Winmill. “Our results were driven in part by our customer service efforts—providing a clean, safe and convenient rental process—which continued to attract high quality, long-term tenants.

“During the quarter, we enhanced customer service with AI-enabled technology, completing the transition from a live agent call center to an AI-based virtual agent call center and beginning to replace kiosks with a QR code-based quick access page for unit rentals. We believe these technology enhancements will provide more flexibility for our operations, while maintaining the same level of customer service.

“Our customer service efforts also strengthened local brand loyalty and drove strong referral and word-of-mouth demand for our storage units and services. Our digital marketing initiativesalso supported strong occupancy by highlighting our outstanding customer reviews, including a record-level average rating above 4.9 out of 5 stars at quarter-end.

“During the quarter, our competitor move-in rate analysis helped keep rates competitive, while our proprietary revenue rate management program increased existing tenant rates and optimized store occupancy.

“Following our Q1 2026 conversion of certain student housing space into approximately 2,400 leasable square feet of all-climate-controlled units at our Lima, Ohio property, our second-largest property, total area occupancy was approximately 90.6%. Subsequent to the end of Q1, the property achieved a successful

lease-up during Q2 2026, with occupancy increasing 3.8 percentage points to 94.3% at quarter-end, supported by strong customer engagement, including more than 700 reviews with an average rating of 4.9 stars.

“While we delivered top-line growth and maintained strong average same-store occupancy, store operating expenses increased primarily due to higher employment costs and real estate property taxes, as assessments continue to increase industry-wide. We expect employment cost growth to return to lower historic levels, and we continue to appeal property tax reassessments where appropriate, though reductions are not guaranteed.

“With approximately $24.9 million in capital resources, we believe we are well positioned to execute our strategic business plan, including acquisitions, joint ventures and expansion in select markets with limited supply growth and less professional competition.

“Looking ahead, we believe our targeted marketing, technology-enabled customer service and proprietary revenue rate management program will continue to attract high-quality, long-term tenantswhile supportingrevenue growth, NOI performance and long-term value for stockholders.”

Q2 2026 Financial Summary

Total revenues increased 0.6% to $3.2 million in the second quarter of 2026. The increase was primarily attributable to increases in existing tenant rates under its proprietary revenue rate management program.

Total operating expenses increased 6.6% to $2.5 million compared to $2.4 million in the same year-ago period. The increase was primarily attributable to an increase of store operating expenses and an increase in general and administrative expenses.

Operating income decreased 16.3% to $694,000, compared to $829,000 in the same period last year. The decrease was the result of the operating effects noted above.

Net income totaled $830,000 or $0.07 per diluted share from $664,000 or $0.06 per diluted share in the same year-ago period.

Capital resources as of June 30, 2026, totaled approximately $24.9 million, comprised of $7.5 million in cash, cash equivalents and restricted cash and $2.6 million in marketable securities, with $14.8 million available under the company’s revolving credit facility.

Q2 2026 Same-Store Results

As of June 30, 2026, the company owned 12 same-store properties and managed a single third party owned property. There were no non-same-store properties.

For the second quarter of 2026, same-store revenues increased 0.6% to $3.2 million compared to the same period last year.

Same-store cost of operations increased 8.1% to $1.3 million compared to $1.2 million in the same period last year. The increase was primarily due to increased expenses for employment costs and real estate property taxes.

Same-store NOI decreased 3.8% to $1.9 million compared to $2.0 million in the same period last year. The decrease was primarily due to an increase in store operating expenses.

Same-store occupancy was 94.7% as of June 30, 2026 and June 30, 2025.

Same-store average tenant duration of stay as of June 30, 2026 maintained a record-level of approximately 3.6 years, and represents an increase compared to approximately 3.4 years as of June 30, 2025.

Q2 2026 Operating Results

Net income in the second quarter of 2026 was $830,000 or $0.07 per diluted share compared to $664,000 or $0.06 per diluted share in the second quarter of 2025.

Property operations expenses increased to $1.3 million from $1.2 million in the same period last year.

General and administrative expenses increased to $831,000 from $779,000 in the same year-ago period. The increase during this period is primarily attributable to an increase in employment costs, and one-time professional fees related to the amendment and restatement of the company’s equity incentive plan.

Interest expense decreased to $203,000 from $214,000 in the same year-ago period.

FFO decreased 10.7% to $978,000 or $0.09 per diluted share compared to FFO of $1.1 million or $0.10 per diluted share in the same period last year.

AFFO decreased 8.9% to $1.1 million or $0.09 per diluted share compared to AFFO of $1.2 million or $0.10 per diluted share in the same period last year.

First Half 2026 Financial Summary

Total revenues increased 1.1% to $6.4 million in the first half of 2026. The increase was primarily attributable to increases in existing tenant rates under its proprietary revenue rate management program.

Total operating expenses increased 7.4% to $5.1 million compared to $4.8 million in the same year-ago period. The increase was primarily attributable to an increase of store operating expenses and an increase in general and administrative expenses.

Operating income decreased 18.5% to $1.3 million, compared to $1.6 million in the same period last year. The decrease was the result of the operating effects noted above.

Net income totaled $1.3 million or $0.11 per diluted share from $1.2 million or $0.11 per diluted share in the same year-ago period.

First Half 2026 Same-Store Results

For the first half of 2026, same-store revenues increased 1.1% to $6.4 million compared to the same period last year. The increase was due primarily to an increase in existing tenant rates under the company’s proprietary revenue rate management program.

Same-store cost of operations increased 9.1% to $2.6 million compared to $2.4 million in the same period last year. The increase was primarily due to increased expenses for employment costs and real estate property taxes.

Same-store NOI decreased 3.8% to $3.7 million compared to $3.9 million in the same period last year. The decrease was primarily due to an increase in store operating expenses.

First Half 2026 Operating Results

Net income in the first half 2026 was $1.3 million or $0.11 per diluted share compared to $1.2 million or $0.11 per diluted share in the first half of 2025.

Property operations expenses increased to $2.6 million from $2.4 million in the same period last year.

General and administrative expenses increased to $1.7 million from $1.6 million in the same year-ago period. The increase during this period is primarily attributable to an increase in employment costs, and one-time professional fees related to the amendment and restatement of the company’s equity incentive plan.

Interest expense decreased to $407,000 from $438,000 in the same year-ago period.

FFO decreased 11.6% to $1.8 million or $0.16 per diluted share compared to FFO of $2.1 million or $0.18 per diluted share in the same period last year.

AFFO decreased 9.9% to $2.0 million or $0.18 per diluted share compared to AFFO of $2.2 million or $0.20 per diluted share in the same period last year.

Q2 and First Half 2026 FFO and AFFO (Unaudited)

For the Three Months Ended June 30,

For the Six Months Ended June 30,

2026

2025

2026

2025

Net income

829,615

664,216

1,306,634

1,219,368

Eliminate items excluded from FFO:

Unrealized (gain) loss on marketable equity securities

(266,394

)

23,447

(303,264

)

36,792

Depreciation and amortization

415,265

407,717

827,680

814,563

FFO attributable to common stockholders

978,486

1,095,380

1,831,050

2,070,723

Adjustments:

Compensation expense related to stock-based awards

84,816

72,218

190,187

172,954

AFFO attributable to common stockholders

1,063,302

1,167,598

2,021,237

2,243,677

Earnings per share attributable to common stockholders - basic

0.07

0.06

0.11

Earnings per share attributable to common stockholders - diluted

0.07

0.06

0.11

FFO per share - diluted

0.09

0.10

0.16

0.18

AFFO per share - diluted

0.09

0.10

0.18

0.20

Weighted average shares outstanding - basic

11,233,431

11,161,473

11,223,023

11,151,123

Weighted average shares outstanding - diluted

11,290,121

11,250,678

11,278,783

11,212,867

Additional Information

Additional information about the company’s second quarter of 2026 results, including financial statements and related notes, is available on Form 10-Q as filed with the U.S. Securities and Exchange Commission and on the company’s investor relations website.

About Global Self Storage

Global Self Storage is a self-administered and self-managed REIT that owns, operates, manages, acquires, and redevelops self-storage properties. The company’s self-storage propertiesare designed to offer affordable, easily accessible and secure storage space for residential and commercial customers. Through its wholly owned subsidiaries, the company owns and/or manages 13 self-storage properties in Connecticut, Illinois, Indiana, New York, Ohio, Pennsylvania, South Carolina, and Oklahoma.

For more information, go to ir.globalselfstorage.us or visit the company’s customer site at www.globalselfstorage.us. You can also follow Global Self Storage on X and Facebook.

Non-GAAP Financial Measures

Funds from Operations (“FFO”) and FFO per share are non-GAAP measures defined by the National Association of Real Estate Investment Trusts (“NAREIT”) and are considered helpful measures of REIT performance by REITs and many REIT analysts. NAREIT defines FFO as a REIT’s net income, excluding gains or losses from sales of property, and adding back real estate depreciation and amortization. The Company also excludes changes in unrealized gains or losses on marketable equity securities. FFO and FFO per share are not a substitute for net income or earnings per share. FFO is not a substitute for GAAP net cash flow in evaluating our liquidity or ability to pay dividends, because it excludes financing activities presented on our statements of cash flows. In addition, other REITs may compute these measures differently, so comparisons among REITs may not be helpful. However, the Company believes that to further understand the performance of its stores, FFO should be considered along with the net income and cash flows reported in accordance with GAAP and as presented in the Company’s financial statements.

Adjusted FFO (“AFFO”) and AFFO per share are non-GAAP measures that represent FFO and FFO per share excluding the effects of stock-based compensation, business development, capital raising, and acquisition related costs and non-recurring items, which we believe are not indicative of the Company’s operating results. AFFO and AFFO per share are not a substitute for net income or earnings per share. AFFO is not a substitute for GAAP net cash flow in evaluating our liquidity or ability to pay dividends, because it excludes financing activities presented on our statements of cash flows. We present AFFO because we believe it is a helpful measure in understanding our results of operations insofar as we believe that the items noted above that are included in FFO, but excluded from AFFO, are not indicative of our ongoing operating results. We also believe that the analyst community considers our AFFO (or similar measures using different terminology) when evaluating us. Because other REITs or real estate companies may not compute AFFO in the same manner as we do, and may use different terminology, our computation of AFFO may not be comparable to AFFO reported by other REITs or real estate companies. However, the Company believes that to further understand the performance of its stores, AFFO should be considered along with the net income and cash flows reported in accordance with GAAP and as presented in the Company’s financial statements.

We believe net operating income or “NOI” is a meaningful measure of operating performance because we utilize NOI in making decisions with respect to, among other things, capital allocations, determining current store values, evaluating store performance, and in comparing period-to-period and market-to-market store operating results. In addition, we believe the investment community utilizes NOI in determining operating performance and real estate values and does not consider depreciation expense because it is based upon historical cost. NOI is defined as net store earnings before general and administrative expenses, interest, taxes, depreciation, and amortization.

NOI is not a substitute for net income, net operating cash flow, or other related GAAP financial measures, in evaluating our operating results.

Same-Store Self Storage Operations Definition

We consider our same-store portfolio to consist of only those stores owned and operated on a stabilized basis at the beginning and at the end of the applicable periods presented. We consider a store to be stabilized once it has achieved an occupancy rate that we believe, based on our assessment of market-specific data, is representative of similar self storage assets in the applicable market for a full year measured as of the most recent January 1 and has not been significantly damaged by natural disaster or undergone significant renovation or expansion. We believe that same-store results are useful to investors in evaluating our performance because they provide information relating to changes in store-level operating performance without taking into account the effects of acquisitions, dispositions, or new ground-up developments. As of June 30, 2026, we owned twelve same-store properties and zero non same-store properties. The Company believes that by providing same-store results from a stabilized pool of stores, with accompanying operating metrics including, but not limited to, variances in occupancy, rental revenue, operating expenses, and NOI, stockholders and potential investors are able to evaluate operating performance without the effects of non-stabilized occupancy levels, rent levels, expense levels, acquisitions, or completed developments. Same-store results should not be used as a basis for future same-store performance or for the performance of the Company’s stores as a whole.

Cautionary Note Regarding Forward Looking Statements

Certain information presented in this press release may contain “forward-looking statements” within the meaning of the federal securities laws including the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements concerning our plans, objectives, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, plans or intentions relating to acquisitions and other information that is not historical information. In some cases, forward-looking statements can be identified by terminology such as “believes,” “plans,” “intends,” “expects,” “estimates,” “may,” “will,” “should,” or “anticipates” or the negative of such terms or other comparable terminology, or by discussions of strategy. All forward-looking statements made by the Company involve known and unknown risks, uncertainties and other factors, many of which are beyond the control of the Company, which may cause the Company’s actual results to be materially different from those expressed or implied by such statements. We may also make additional forward-looking statements from time to time. All such subsequent forward-looking statements, whether written or oral, by us or on our behalf, are also expressly qualified by these cautionary statements. All forward-looking statements, including without limitation, management’s examination of historical operating trends and estimates of future earnings, are based upon our current expectations and various assumptions. Our expectations, beliefs and projections are expressed in good faith and we believe there is a reasonable basis for them, but there can be no assurance that management’s expectations, beliefs and projections will result or be achieved.

All forward-looking statements apply only as of the date made. Except as required by law, we undertake no obligation to publicly update or revise forward-looking statements which may be made to reflect events or circumstances after the date made or to reflect the occurrence of unanticipated events. The amount, nature, and/or frequency of dividends paid by the company may be changed at any time without notice.

Company Contact:

Global Self Storage, Inc.

info@globalselfstorage.us

Investor Relations Contact:

Ron Both

Encore Investor Relations

Email Contact

GLOBAL SELF STORAGE, INC.

CONSOLIDATED BALANCE SHEETS

(Unaudited)

June 30, 2026

December 31, 2025

Assets

Real estate assets, net

51,947,372

52,617,566

Cash and cash equivalents

7,513,637

7,364,963

Restricted cash

36,043

106,444

Investments in securities

2,554,830

2,251,566

Accounts receivable

126,582

117,902

Prepaid expenses and other assets

745,656

802,382

Line of credit issuance costs, net

78,388

117,582

Interest rate cap

621

120

Goodwill

694,121

Total assets

63,697,250

64,072,646

Liabilities and equity

Note payable, net

15,490,397

15,785,874

Accounts payable and accrued expenses

1,825,605

1,750,382

Total liabilities

17,316,002

17,536,256

Commitments and contingencies

Stockholders' equity

Preferred stock, $0.01 par value: 50,000,000 shares authorized; no shares outstanding

—

Common stock, $0.01 par value: 450,000,000 shares authorized; 11,421,420 shares and 11,364,278 shares issued and outstanding at June 30, 2026 and December 31, 2025, respectively

114,214

113,643

Additional paid in capital

50,099,219

49,909,603

Accumulated deficit

(3,832,185

)

(3,486,856

)

Total stockholders' equity

46,381,248

46,536,390

Total liabilities and stockholders' equity

63,697,250

64,072,646

GLOBAL SELF STORAGE, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

(Unaudited)

For the Three Months Ended June 30,

For the Six Months Ended June 30,

2026

2025

2026

2025

Revenues

Rental income

3,088,340

3,062,588

6,138,644

6,062,640

Other property related income

107,563

113,008

212,394

220,878

Management fees and other income

18,539

18,782

37,158

37,164

Total revenues

3,214,442

3,194,378

6,388,196

6,320,682

Expenses

Property operations

1,274,710

1,179,041

2,605,053

2,387,940

General and administrative

830,679

778,695

1,689,898

1,565,587

Depreciation and amortization

415,265

407,717

827,680

814,563

Total expenses

2,520,654

2,365,453

5,122,631

4,768,090

Operating income

693,788

828,925

1,265,565

1,552,592

Other income (expense)

Dividend and interest income

72,471

73,130

144,721

141,729

Unrealized gain (loss) on marketable equity securities

266,394

(23,447

)

303,264

(36,792

)

Interest expense

(203,038

)

(214,392

)

(406,916

)

(438,161

)

Total other income (expense), net

135,827

(164,709

)

41,069

(333,224

)

Net income and comprehensive income

829,615

664,216

1,306,634

1,219,368

Earnings per share

Basic

0.07

0.06

0.11

Diluted

0.07

0.06

0.11

Weighted average shares outstanding

Basic

11,233,431

11,161,473

11,223,023

11,151,123

Diluted

11,290,121

11,250,678

11,278,783

11,212,867

Reconciliation of GAAP Net Income to Same-Store Net Operating Income

The following table presents a reconciliation of same-store net operating income to net income as presented on our consolidated statements of operations for the periods indicated (unaudited):

For the Three Months Ended June 30,

For the Six Months Ended June 30,

2026

2025

2026

2025

Net income

829,615

664,216

1,306,634

1,219,368

Adjustments:

Management fees and other income

(18,539

)

(18,782

)

(37,158

)

(37,164

)

General and administrative

830,679

778,695

1,689,898

1,565,587

Depreciation and amortization

415,265

407,717

827,680

814,563

Dividend and interest

(72,471

)

(73,130

)

(144,721

)

(141,729

)

Unrealized (gain) loss on marketable equity securities

(266,394

)

23,447

(303,264

)

36,792

Interest expense

203,038

214,392

406,916

438,161

Total same-store net operating income

1,921,193

1,996,555

3,745,985

3,895,578

For the Three Months Ended June 30,

For the Six Months Ended June 30,

2026

2025

2026

2025

Same-store revenues

3,195,903

3,175,596

6,351,038

6,283,518

Same-store cost of operations

1,274,710

1,179,041

2,605,053

2,387,940

Total same-store net operating income

1,921,193

1,996,555

3,745,985

3,895,578

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Document Period End Date

Aug. 07, 2026

Entity Registrant Name

GLOBAL SELF STORAGE, INC.

Entity Central Index Key

0001031235

Entity Emerging Growth Company

false

Entity File Number

001-12681

Entity Incorporation, State or Country Code

Entity Tax Identification Number

13-3926714

Entity Address, Address Line One

3814 Route 44

Entity Address, City or Town

Millbrook

Entity Address, State or Province

Entity Address, Postal Zip Code

12545

City Area Code

(212)

Local Phone Number

785-0900

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false

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Common Stock, $0.01 par value

Trading Symbol

SELF

Security Exchange Name

NASDAQ

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