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Global Self Storage, Inc.

Real Estate Investment Trusts · MD · CIK 1031235

Owns, operates, and develops self-storage properties for residential and commercial customers

$59M
Market cap
$5.17
Last close
-0.2%
1D
-0.2%
5D
20K
Volume
Price · last 39 sessions-6.3%
May 4L $5.01 · H $5.56Jun 29
251
Total filings
Jun 16, 2026
Last filing
12/31
Fiscal year end
8-KShareholder VoteJun 16, 20268-KResults of Operations · Reg FD DisclosureMay 8, 202610-Q10-QMay 8, 2026DEFA14ADEFA14AApr 29, 2026DEF 14ADEF 14AApr 29, 20268-KResults of Operations · Reg FD DisclosureMar 25, 202610-K10-KMar 25, 20268-KExecutive ChangeDec 29, 2025SC 13D/ASC 13D/ADec 5, 20258-KResults of Operations · Reg FD DisclosureNov 7, 202510-Q10-QNov 7, 20258-KResults of Operations · Reg FD DisclosureAug 8, 202510-Q10-QAug 8, 20258-KShareholder VoteJun 9, 20258-KResults of Operations · Reg FD DisclosureMay 9, 202510-Q10-QMay 9, 2025DEFA14ADEFA14AApr 25, 2025DEF 14ADEF 14AApr 25, 20258-KMaterial Agreement · Agreement TerminatedApr 4, 2025424B5424B5Apr 4, 20258-KResults of Operations · Reg FD DisclosureMar 26, 202510-K10-KMar 26, 20258-KResults of Operations · Reg FD DisclosureNov 8, 202410-Q10-QNov 8, 20248-KResults of Operations · Reg FD DisclosureAug 9, 202410-Q10-QAug 9, 20248-KMaterial Agreement · New Debt / ObligationJul 11, 20248-KShareholder VoteJun 5, 20248-KReg FD DisclosureMay 21, 20248-KResults of Operations · Reg FD DisclosureMay 10, 202410-Q10-QMay 10, 2024DEFA14ADEFA14AApr 26, 2024DEF 14ADEF 14AApr 26, 20248-KResults of Operations · Reg FD DisclosureMar 26, 202410-K10-KMar 26, 20248-KResults of Operations · Reg FD DisclosureNov 13, 202310-Q10-QNov 13, 20238-KExecutive Change · Results of OperationsAug 11, 202310-Q10-QAug 11, 20238-KShareholder VoteJun 6, 20238-KResults of Operations · Reg FD DisclosureMay 9, 202310-Q10-QMay 9, 2023DEFA14ADEFA14AApr 27, 2023DEF 14ADEF 14AApr 27, 20238-KResults of Operations · Reg FD DisclosureMar 28, 202310-K10-KMar 28, 20238-KBylaw AmendmentNov 10, 20228-KResults of Operations · Reg FD DisclosureNov 10, 202210-Q10-QNov 10, 20228-KResults of Operations · Reg FD DisclosureAug 10, 202210-Q10-QAug 10, 20228-KShareholder VoteJun 6, 20228-KResults of Operations · Reg FD DisclosureMay 16, 202210-Q10-QMay 16, 2022DEFA14ADEFA14AApr 27, 2022DEF 14ADEF 14AApr 27, 20228-KResults of Operations · Reg FD DisclosureMar 31, 202210-K10-KMar 31, 20228-KMaterial AgreementJan 14, 20228-KResults of Operations · Reg FD DisclosureNov 15, 202110-Q10-QNov 15, 20218-KResults of Operations · Reg FD DisclosureAug 16, 202110-Q10-QAug 16, 20218-KMaterial Agreement · New Debt / ObligationJul 6, 20218-KMaterial AgreementJun 25, 2021424B5424B5Jun 24, 2021424B5424B5Jun 22, 20218-KShareholder VoteJun 8, 20218-KResults of Operations · Reg FD DisclosureMay 13, 202110-Q10-QMay 13, 2021DEFA14ADEFA14AApr 29, 2021DEF 14ADEF 14AApr 29, 20218-KResults of Operations · Reg FD DisclosureMar 31, 202110-K10-KMar 31, 202110-K/A10-K/ANov 27, 20208-KResults of Operations · Reg FD DisclosureNov 16, 202010-Q10-QNov 16, 20208-KBylaw AmendmentOct 16, 20208-KResults of Operations · Reg FD DisclosureAug 14, 202010-Q10-QAug 14, 2020

Insider Activity

◆ Cluster Buy · 3 insiders

In the 90 days to Dec 5, 2025: 3 insiders bought $454K.

DateInsiderActionSharesPriceValue
Dec 5, 2025Winmill Mark CampbellPresident and CEOBuy3,600$5.09$18K
Dec 5, 2025Winmill Mark CampbellPresident and CEOBuy800$5.05$4K
Dec 4, 2025Winmill Mark CampbellPresident and CEOBuy6,000$5.14$31K
Dec 3, 2025Winmill Mark CampbellPresident and CEOBuy6,000$5.13$31K
Dec 2, 2025Klimoski Donald IiGeneral CounselBuy446$5.05$2K
Dec 1, 2025Winmill & Co. IncOtherBuy3,062$5.18$16K
Nov 28, 2025Winmill & Co. IncOtherBuy3,342$5.16$17K
Nov 26, 2025Winmill & Co. IncOtherBuy4,873$5.17$25K
Nov 25, 2025Winmill & Co. IncOtherBuy4,547$5.18$24K
Nov 24, 2025Winmill & Co. IncOtherBuy4,064$5.14$21K
Nov 21, 2025Winmill & Co. IncOtherBuy6,226$5.09$32K
Nov 20, 2025Winmill & Co. IncOtherBuy5,870$5.08$30K
Nov 19, 2025Winmill & Co. IncOtherBuy6,226$5.13$32K
Nov 18, 2025Winmill & Co. IncOtherBuy5,618$5.16$29K
Nov 17, 2025Winmill & Co. IncOtherBuy6,226$5.12$32K
Nov 14, 2025Winmill & Co. IncOtherBuy7,035$5.09$36K
Nov 13, 2025Winmill & Co. IncOtherBuy6,694$5.03$34K
Nov 12, 2025Winmill & Co. IncOtherBuy6,055$5.03$30K
Nov 11, 2025Winmill & Co. IncOtherBuy2,069$4.97$10K

Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.

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