Mark Campbell Winmill
President and CEO at Global Self Storage · 8 reported transactions in 1 company · latest trade Sep 10, 2026
Their record
Across their whole record, 1 purchase can be measured; 0 did better than the S&P 500 over the next 6 months.
Typical move −1.0%, S&P 500 +10.3% over the same days.
Their trades
Bought | Sep 10, 2026 | Sep 10, 2026 close $5.15 → Oct 26, 2026 close $4.85. S&P 500 +1.0% over the same days. | ||
Bought | Sep 10, 2026 | Sep 10, 2026 close $5.15 → Oct 26, 2026 close $4.85. S&P 500 +1.0% over the same days. | ||
Bought | Sep 9, 2026 | Sep 9, 2026 close $5.16 → Oct 26, 2026 close $4.85. S&P 500 +0.4% over the same days. | ||
Bought | Sep 9, 2026 | Sep 9, 2026 close $5.16 → Oct 26, 2026 close $4.85. S&P 500 +0.4% over the same days. | ||
Bought | Dec 5, 2025 | Dec 5, 2025 close $4.99 → Oct 26, 2026 close $4.85. S&P 500 +11.6% over the same days. | ||
Bought | Dec 5, 2025 | Dec 5, 2025 close $4.99 → Oct 26, 2026 close $4.85. S&P 500 +11.6% over the same days. | ||
Bought | Dec 4, 2025 | Dec 4, 2025 close $5.06 → Oct 26, 2026 close $4.85. S&P 500 +11.8% over the same days. | ||
Bought | Dec 3, 2025 | Dec 3, 2025 close $5.15 → Oct 26, 2026 close $4.85. S&P 500 +11.9% over the same days. |
BoughtGlobal Self Storage
$1.5K
Sep 10, 2026 close $5.15 → Oct 26, 2026 close $4.85. S&P 500 +1.0% over the same days.
BoughtGlobal Self Storage
$258.00
Sep 10, 2026 close $5.15 → Oct 26, 2026 close $4.85. S&P 500 +1.0% over the same days.
BoughtGlobal Self Storage
$10.6K
Sep 9, 2026 close $5.16 → Oct 26, 2026 close $4.85. S&P 500 +0.4% over the same days.
BoughtGlobal Self Storage
$8.3K
Sep 9, 2026 close $5.16 → Oct 26, 2026 close $4.85. S&P 500 +0.4% over the same days.
BoughtGlobal Self Storage
$18.3K
Dec 5, 2025 close $4.99 → Oct 26, 2026 close $4.85. S&P 500 +11.6% over the same days.
BoughtGlobal Self Storage
$4K
Dec 5, 2025 close $4.99 → Oct 26, 2026 close $4.85. S&P 500 +11.6% over the same days.
BoughtGlobal Self Storage
$30.8K
Dec 4, 2025 close $5.06 → Oct 26, 2026 close $4.85. S&P 500 +11.8% over the same days.
BoughtGlobal Self Storage
$30.8K
Dec 3, 2025 close $5.15 → Oct 26, 2026 close $4.85. S&P 500 +11.9% over the same days.