Global Self Storage, Inc. (SELF) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-05-15

Global Self Storage, Inc. (SELF) has filed 3 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-15. 2 Form 8-K material event filings were reported by SELF in the last 90 days. InsiderAlpha tracks every SELF SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Global Self Storage, Inc. (SELF)

SIC classificationReal Estate Investment Trusts (SIC 6798)
SEC CIK0001031235

90-Day SEC Filing Activity

Form 4 filings (90d)3
Form 8-K filings (90d)2
Latest Form 4 filing2026-05-15

Recent SELF Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
WINMILL MARK CAMPBELLPresident and CEOP — Open-market purchase4.0K$5.33$21KSEC
Zachary William ChesterDirectorA — Grant or award94$5.31$499SEC
BURKE RUSSELL E IIIDirectorA — Grant or award94$5.31$499SEC
BURKE RUSSELL E IIIDirectorA — Grant or award2.7K$5.11$14KSEC
Zachary William ChesterDirectorA — Grant or award2.7K$5.11$14KSEC
Klimoski Donald IIGeneral CounselA — Grant or award5.5K$5.10$28KSEC
OMalley ThomasChief Financial OfficerA — Grant or award5.5K$5.08$28KSEC
WINMILL MARK CAMPBELLPresident and CEOA — Grant or award12.7K$5.10$65KSEC
Klimoski Donald IIGeneral CounselA — Grant or award5.5K$5.08$28KSEC
WINMILL MARK CAMPBELLPresident and CEOA — Grant or award12.7K$5.08$64KSEC
OMalley ThomasChief Financial OfficerA — Grant or award5.5K$5.10$28KSEC
Kamerman RussellAssistant General CounselA — Grant or award500$5.10$3KSEC
WINMILL MARK CAMPBELLPresident and CEOP — Open-market purchase800$5.05$4KSEC
WINMILL MARK CAMPBELLPresident and CEOP — Open-market purchase3.6K$5.09$18KSEC
WINMILL MARK CAMPBELLPresident and CEOP — Open-market purchase6.0K$5.14$31KSEC

All transactions sourced from SEC EDGAR Form 4 filings for Global Self Storage, Inc. (SELF). Updated in real time as new filings are submitted to the SEC.

Most-Active SELF Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
BURKE RUSSELL E III1$499
Zachary William Chester1$499
WINMILL MARK CAMPBELL1$21K

Recent SELF Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SELF insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

SELF Insider Trading — FAQ

What is the latest insider trade for SELF?
Global Self Storage, Inc. (SELF) had 3 insider filings in the last 90 days, with the most recent on 2026-05-15. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying SELF stock?
0 insider purchases of SELF were filed in the last 90 days.
How many insiders are selling SELF stock?
0 insider sales of SELF were filed in the last 90 days.
Where can I see SELF SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every SELF SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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