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Global Self Storage (SELF) 10K Form and Latest SEC Filings 2026

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Latest Global Self Storage SEC Filings & Recent Activity

Global Self Storage (NASDAQ:SELF) has submitted 168+ documents to the U.S. Securities and Exchange Commission (SEC) since 2018. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. The most recent filing was a Form DEFA14A submitted on April 29, 2026.

Form 4
Global Self Storage, Inc. Reports Ownership Change on Apr. 1, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Global Self Storage Files Current Report on Mar. 25, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-K
Global Self Storage Files Annual Report on Mar. 25, 2026

The 10-K contains Global Self Storage's audited financial statements, revenue, earnings, and risk factors for the prior fiscal year.

View earnings history

Global Self Storage SEC Filing History

Browse Global Self Storage's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
04/29/2026 3:05 PM
Global Self Storage (1031235) Filer
Form DEFA14A
04/01/2026 3:52 PM
BURKE RUSSELL E III (1127962) Reporting
Global Self Storage (1031235) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/01/2026 3:42 PM
Global Self Storage (1031235) Issuer
Zachary William Chester (1667715) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/25/2026 3:59 PM
Global Self Storage (1031235) Issuer
Klimoski Donald II (1716808) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/25/2026 4:10 PM
Global Self Storage (1031235) Issuer
Kamerman Russell (1628873) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/25/2026 3:39 PM
Global Self Storage (1031235) Issuer
WINMILL MARK CAMPBELL (1019264) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/25/2026 3:50 PM
Global Self Storage (1031235) Issuer
OMalley Thomas (1330281) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/25/2026 3:10 PM
Global Self Storage (1031235) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/25/2026 3:00 PM
Global Self Storage (1031235) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
12/05/2025 3:26 PM
Global Self Storage (1031235) Subject
WINMILL MARK CAMPBELL (1019264) Filed by
Form SCHEDULE 13D/A
12/05/2025 3:12 PM
Global Self Storage (1031235) Issuer
WINMILL MARK CAMPBELL (1019264) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/24/2025 3:13 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/20/2025 4:00 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/18/2025 3:31 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/17/2025 3:23 PM
BURKE RUSSELL E III (1127962) Reporting
Global Self Storage (1031235) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/17/2025 3:09 PM
Global Self Storage (1031235) Issuer
Zachary William Chester (1667715) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
11/12/2025 4:20 PM
BARD ASSOCIATES INC (1105907) Filed by
Global Self Storage (1031235) Subject
Form SCHEDULE 13G/A
08/29/2025 3:17 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/28/2025 3:36 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/26/2025 3:14 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/22/2025 3:12 PM
Global Self Storage (1031235) Issuer
WINMILL & CO. INC (52234) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/20/2025 3:39 PM
Global Self Storage (1031235) Issuer
Zachary William Chester (1667715) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
08/20/2025 3:30 PM
BURKE RUSSELL E III (1127962) Reporting
Global Self Storage (1031235) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/08/2025 3:00 PM
Global Self Storage (1031235) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
06/18/2025 3:31 PM
BURKE RUSSELL E III (1127962) Reporting
Global Self Storage (1031235) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/18/2025 3:22 PM
Global Self Storage (1031235) Issuer
Zachary William Chester (1667715) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/09/2025 4:15 PM
Global Self Storage (1031235) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/21/2025 4:14 PM
Global Self Storage (1031235) Issuer
Zachary William Chester (1667715) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 3:42 PM
Global Self Storage (1031235) Issuer
WINMILL MARK CAMPBELL (1019264) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)

Global Self Storage SEC Filings - Frequently Asked Questions

Global Self Storage (SELF) has submitted 168+ filings to the SEC since 2018. You can browse the complete history or filter by form type using the tools above.

Global Self Storage's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results.

The most recent filing was a Form DEFA14A submitted on April 29, 2026. View the full filing using the link above.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NASDAQ:SELF) was last updated on 5/14/2026 by MarketBeat.com Staff.
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