# EDGAR Filing Document

**Accession Number:** 0001031235
**File Stem:** 0001193125-25-335265
**Filing Date:** 2025-12
**Character Count:** 5221
**Document Hash:** 0a18524db7486a3c57e3c2ec336c48b2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-335265.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001193125-25-335265

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 10

**CONFORMED PERIOD OF REPORT**: 20251219

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Global Self Storage, Inc.
- **CENTRAL INDEX KEY:** 0001031235
- **STANDARD INDUSTRIAL CLASSIFICATION:** REAL ESTATE INVESTMENT TRUSTS [6798]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 133926714
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-12681
- **FILM NUMBER:** 251609038

**BUSINESS ADDRESS:**
- **STREET 1:** 3814 ROUTE 44
- **CITY:** MILLBROOK
- **STATE:** NY
- **ZIP:** 12545
- **BUSINESS PHONE:** 2127850900

**MAIL ADDRESS:**
- **STREET 1:** 3814 ROUTE 44
- **CITY:** MILLBROOK
- **STATE:** NY
- **ZIP:** 12545

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Self Storage Group, Inc.
- **DATE OF NAME CHANGE:** 20131118

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GLOBAL INCOME FUND, INC.
- **DATE OF NAME CHANGE:** 20060215

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GLOBAL INCOME FUND INC
- **DATE OF NAME CHANGE:** 19990830

?xml version='1.0' encoding='ASCII'? 8-K

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549**

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## FORM 8-K

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**CURRENT REPORT**

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

**Date of Report (Date of earliest event reported):** December 19, 2025<br>

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GLOBAL SELF STORAGE, INC.

**(Exact name of registrant as specified in its charter)**

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| | | |
|:---|:---|:---|
| Maryland | 001-12681 | 13-3926714 |
| **(State or other jurisdiction<br>of incorporation)** | **(Commission File Number)** | **(IRS Employer<br>Identification No.)** |
| 3814 Route 44 |  |  |
| Millbrook**,** New York |  | 12545 |
| **(Address of principal executive offices)** |  | **(Zip Code)** |

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**Registrant's telephone number, including area code:** (212) 785-0900<br>

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

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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:

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| | | |
|:---|:---|:---|
| **<br>Title of each class** | **Trading<br>Symbol(s)** | **<br>Name of each exchange on which registered** |
| Common Stock, $0.01 par value | SELF | The Nasdaq Stock Market LLC |

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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. ☐

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**Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.** 

On December 19, 2025, Thomas Winmill tendered his voluntary resignation from the board of directors (the "Board") of Global Self Storage, Inc. (the "Company"), effective immediately. Mr. Thomas Winmill had been a member of the Board since 1997. Mr. Thomas Winmill's decision to resign was not because of a disagreement with the Company on any matter relating to the Company's operations, policies or practices. In connection with Mr. Thomas Winmill's resignation, the size of the Board was decreased by one and set at five directors, four of whom are independent. The Board thanks Mr. Thomas Winmill for his 28 years of service and contributions to the Company.

**Item 9.01 Financial Statements and Exhibits.**

(a) Not applicable.

(b) Not applicable.

(c) Not applicable.

(d) Not applicable.

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**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.

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| | | | |
|:---|:---|:---|:---|
|  |  |  | **GLOBAL SELF STORAGE, INC.** |
| Date: | December 29, 2025 | By:  | /s/ Mark C. Winmill |
|  |  |  | Name: Mark C. Winmill<br>Title: President |

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