LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
SELFCIK 0001031235

Global Self Storage, Inc.

28 transactions by 7 insiders, from November 13, 2025 to August 26, 2026.

Transactions
287 insiders
Bought · P
$466Kopen market
Sold · S
Nonenobody sold on the open market
Net
+$466Knet buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Russell E. Burke IIIDir5—$8K—
William Chester ZacharyDir3———
Mark Campbell WinmillCEO3—$21K—
Thomas OMalleyCFO2———
Donald Klimoski IIGC2———
Russell KamermanGC1———

Large holders and funds

Holders above 10%, often funds. They file the same form, but they trade for portfolio reasons, not because of what they know.

InsiderTradesPlannedBoughtSold
WINMILL & CO. INCOther12—$437K—

All transactions

28 in total, newest filings first.

InsiderDateCodeSharesPriceValue
WINMILL & CO. INCOtherAug 26P7,761$5.64$44K
WINMILL & CO. INCOtherAug 25P7,547$5.66$43K
WINMILL & CO. INCOtherAug 24P8,022$5.62$45K
WINMILL & CO. INCOtherAug 21P7,117$5.45$39K
WINMILL & CO. INCOtherAug 20P6,901$5.42$37K
WINMILL & CO. INCOtherAug 19P6,877$5.40$37K
WINMILL & CO. INCOtherAug 18P5,736$5.32$31K
WINMILL & CO. INCOtherAug 17P7,117$5.33$38K
WINMILL & CO. INCOtherAug 14P6,029$5.23$32K
WINMILL & CO. INCOtherAug 13P5,629$5.20$29K
Russell E. Burke IIIDirAug 13P1,625$5.21$8K
William Chester ZacharyDirAug 11A196$5.10$1,000
Russell E. Burke IIIDirAug 11A196$5.10$1,000
WINMILL & CO. INCOtherAug 12P6,248$5.15$32K
WINMILL & CO. INCOtherAug 11P5,887$5.17$30K
Mark Campbell WinmillCEOMay 14P4,000$5.33$21K
William Chester ZacharyDirMay 12A94$5.31$499
Russell E. Burke IIIDirMay 12A94$5.31$499
William Chester ZacharyDirMar 31A2,739$5.11$14K
Russell E. Burke IIIDirMar 31A2,739$5.11$14K
Donald Klimoski IIGCMar 24A5,527$5.10$28K
Donald Klimoski IIGCMar 24A5,527$5.08$28K
Russell KamermanGCMar 24A500$5.10$3K
Thomas OMalleyCFOMar 24A5,527$5.10$28K
Thomas OMalleyCFOMar 24A5,527$5.08$28K
Mark Campbell WinmillCEOMar 24A12,672$5.10$65K
Mark Campbell WinmillCEOMar 24A12,672$5.08$64K
Russell E. Burke IIIDirNov 13A248$5.03$1K