Insider Transaction Report for Mark Winmill

This filing details Form 4 transactions for Mark Winmill, President and CEO of Global Self Storage, Inc. On September 9, 2026, Mr. Winmill acquired 1,600 shares of Common Stock at $5.16 per share, increasing his direct holdings to 370,182.289 shares. On the same day, he acquired an additional 2,058 shares at the same price, bringing his total to 372,240.289 shares. Further transactions on September 10, 2026, included the acquisition of 50 shares and 292 shares, both at $5.16 per share. These acquisitions resulted in a final post-transaction share count of 372,582.289 shares, all held directly.