Insider · SEC Form 4 filer
Mark Winmill
Past buys: 2 of 4 beat
Companies
Where they file as an insider
Global Self Storage (SELF) President and CEO, Director Latest filing Sep 10, 2026
Track record
Did their buys beat the typical stock?
Open-market buys21
Quarters checked 6 months later4
Beat the typical stock 2 of 4
Quarters too new to check2
2 of 4 checked quarters beat the typical stock. A past record is data, not a forecast.
Global Self Storage (SELF) Bought Sep 9–10, 2026 · $20.6K · 4,000 shares Too new Too new. Its 6-month check uses prices as of Mar 31, 2027.
Global Self Storage (SELF) Bought May 14, 2026 · $21.3K · 4,000 shares Too new Too new. Its 6-month check uses prices as of Dec 31, 2026.
Global Self Storage (SELF) Bought Dec 3–5, 2025 · $84K · 16,400 shares Behind typical Dec 31, 2025 $5.10 → Jun 30, 2026 $5.24 · +2.7% (typical stock +4.7%)
Global Self Storage (SELF) Bought May 19, 2025 · $56.7K · 10,000 shares Behind typical Jun 30, 2025 $5.34 → Dec 31, 2025 $5.10 · −4.5% (typical stock +2.1%)
Global Self Storage (SELF) Bought May 28–30, 2024 · $114K · 22,899 shares Beat typical Jun 30, 2024 $4.86 → Dec 31, 2024 $5.33 · +9.7% (typical stock +3.9%)
Global Self Storage (SELF) Bought Nov 16, 2023 · $34.8K · 7,200 shares Beat typical Dec 31, 2023 $4.63 → Jun 30, 2024 $4.86 · +5.0% (typical stock −1.2%)
Each row is one stock in one quarter, however many buys it took. We take the stock's price at the end of that quarter and again 6 months later, and compare it with the typical stock over the same dates. Prices are quarter-end values from funds' 13F reports (the middle value across 3 or more funds), through Sep 30, 2026. Moves past 3 times up or down, mostly stock splits, are left out. How we tested this.
Past results. This is data, not advice.
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