Global Self Storage (SELF) CEO Winmill Buys 4,000 Shares

What Happened
WINMILL MARK CAMPBELL, President, CEO and Director of Global Self Storage, acquired 4,000 shares of SELF on 2026-05-14 at $5.33 per share, for a total purchase cost of $21,320. The Form 4 lists the transaction as an open-market or private purchase (transaction code P). This was a purchase (an acquisition rather than a sale).

Key Details

• Transaction date: 2026-05-14
• Filing date: 2026-05-15 (filed one day after the trade; appears timely)
• Details: 4,000 shares @ $5.33 per share; total ~$21,320
• Transaction type/code: Open-market/private purchase (P)
• Shares owned after transaction: not specified in the filing
• Footnotes/plan: filing does not indicate a 10b5-1 plan, tax withholding, or other special footnotes

Context
Insider purchases by a CEO can be viewed by investors as a sign of alignment with shareholders, but a single small purchase (here ~$21k) should be weighed with other information and insider trading patterns. This Form 4 shows a straightforward buy; it does not provide the insider’s motive or broader ownership stake.