Global Self Storage, Inc. (SELF) Insider Trading -- Recent Executive & Director Transactions

9 insiders reported 58 Form 4 transactions for Global Self Storage, Inc. (SELF) over the past 18 months (most recent 2026-05-15). Recent activity: WINMILL MARK CAMPBELL (President and CEO) Buy 4,000 shares, BURKE RUSSELL E III (Director) Buy 94 shares, Zachary William Chester (Director) Buy 94 shares, WINMILL MARK CAMPBELL (President and CEO) Buy 12,672 shares, WINMILL MARK CAMPBELL (President and CEO) Buy 12,672 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-05-15WINMILL MARK CAMPBELLPresident and CEOBuy4,000$21,320
2026-05-14BURKE RUSSELL E IIIDirectorBuy94$499
2026-05-14Zachary William ChesterDirectorBuy94$499
2026-03-25WINMILL MARK CAMPBELLPresident and CEOBuy12,672$64,374
2026-03-25WINMILL MARK CAMPBELLPresident and CEOBuy12,672$64,627
2026-03-25OMalley ThomasChief Financial OfficerBuy5,527$28,077
2026-03-25OMalley ThomasChief Financial OfficerBuy5,527$28,188
2026-03-25Klimoski Donald IIGeneral CounselBuy5,527$28,077
2026-03-25Klimoski Donald IIGeneral CounselBuy5,527$28,188
2026-03-25Kamerman RussellAssistant General CounselBuy500$2,550
2025-12-05WINMILL MARK CAMPBELLPresident and CEOBuy800$4,040
2025-12-05WINMILL MARK CAMPBELLPresident and CEOBuy6,000$30,840
2025-12-05WINMILL MARK CAMPBELLPresident and CEOBuy6,000$30,780
2025-12-05WINMILL MARK CAMPBELLPresident and CEOBuy3,600$18,324
2025-12-02Klimoski Donald IIGeneral CounselBuy446$2,252
2025-12-01WINMILL & CO. INCInsiderBuy3,342$17,245
2025-12-01WINMILL & CO. INCInsiderBuy3,062$15,861
2025-11-26WINMILL & CO. INCInsiderBuy4,547$23,553
2025-11-26WINMILL & CO. INCInsiderBuy4,873$25,193
2025-11-24WINMILL & CO. INCInsiderBuy6,226$31,690
2025-11-24WINMILL & CO. INCInsiderBuy4,064$20,889
2025-11-20WINMILL & CO. INCInsiderBuy6,226$31,939
2025-11-20WINMILL & CO. INCInsiderBuy5,870$29,820
2025-11-18WINMILL & CO. INCInsiderBuy6,226$31,877
2025-11-18WINMILL & CO. INCInsiderBuy5,618$28,989

Source: SEC Form 4 filings · as of 2026-05-15