Wednesday, October 28, 2026
Data from SEC filings, checked daily
Public filings, plainly told
AboutMethodSourcesNewsletter
Insider tradingForm 4

Global Self Storage, Inc. (SELF) Insider Trading

13 open-market trades reported since Aug 14, 2026: 13 purchases worth $403K and 0 sales worth $0.

By insider

InsiderRoleBuysBoughtSellsSoldLatest
Mark Campbell WinmillCEO2$21K0$0Sep 11, 2026
Winmill & Co. IncOther10$374K0$0Aug 26, 2026
Russell E. Burke IIIDirector1$8K0$0Aug 14, 2026
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All trades

SELF insider trades
FiledTradedInsiderRoleTypeSharesPrice ($)ValueHolding3 mo. afterFiling
Sep 11Sep 9Mark Campbell WinmillCEOCEO▲ BUY3,6585.16$19K+1.0%Form 4 ↗
Sep 11Sep 10Mark Campbell WinmillCEOCEO▲ BUY3425.16$2K+0.1%Form 4 ↗
Aug 26Aug 26Winmill & Co. IncOtherOther▲ BUY7,7615.64$44K+3.5%Form 4 ↗
Aug 26Aug 25Winmill & Co. IncOtherOther▲ BUY7,5475.66$43K+3.5%Form 4 ↗
Aug 24Aug 24Winmill & Co. IncOtherOther▲ BUY8,0225.62$45K+3.9%Form 4 ↗
Aug 24Aug 21Winmill & Co. IncOtherOther▲ BUY7,1175.45$39K+3.6%Form 4 ↗
Aug 20Aug 20Winmill & Co. IncOtherOther▲ BUY6,9015.42$37K+3.6%Form 4 ↗
Aug 20Aug 19Winmill & Co. IncOtherOther▲ BUY6,8775.40$37K+3.7%Form 4 ↗
Aug 18Aug 17Winmill & Co. IncOtherOther▲ BUY7,1175.33$38K+4.2%Form 4 ↗
Aug 18Aug 18Winmill & Co. IncOtherOther▲ BUY5,7365.32$31K+3.2%Form 4 ↗
Aug 14Aug 14Winmill & Co. IncOtherOther▲ BUY6,0295.23$32K+3.6%Form 4 ↗
Aug 14Aug 13Winmill & Co. IncOtherOther▲ BUY5,6295.20$29K+3.5%Form 4 ↗
Aug 14Aug 13Russell E. Burke IIIDirectorDirector▲ BUY1,6255.21$8K+4.2%Form 4 ↗
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings