WINMILL MARK CAMPBELL

PrivateCIK: 1019264
Location

MILLBROOK, NY

WINMILL MARK CAMPBELL (President and CEO) purchased 1.1% of their position (4K shares) of GLOBAL SELF STORAGE, INC. on the open market

Open‑market purchase worth $21.3K — a small addition. The strongest form of insider conviction signal.

P · 1 purchase
InsiderWINMILL MARK CAMPBELLCIK 1019264
IssuerGLOBAL SELF STORAGE, INC.CIK 1031235
DirectorOfficer· President and CEO
Since Mar 2019
+4K
Net shares
Net buyer
$21.3K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
4K acquired
Non-Derivative Transactions1

Common Stock

Direct
P · Purchase

Shares

+4K

Price / share

$5.33

Trade value

$21.32K

% of position

1.1%
5/14/2026
364.58K368.58K
Total

Net shares

+4K

Net value

$21.32K

Derivative Transactions0
No derivative transactions reported
WINMILL MARK CAMPBELL — Insider Transaction (Form 4) Filed May 15, 2026 | Finecho