Mark Campbell Winmill bought $21K of SELF stock

Mark Campbell Winmill, President and CEO of Global Self Storage, Inc. (SELF), bought 4,000 shares of SELF stock worth $21K, per an SEC Form 4 filed Sep 11, 2026.

It was an open-market purchase.

The trade happened on Sep 9, 2026, 2 days before it was made public.

SELF has moved -6.0% since the trade date, from $5.16 to $4.85 (Nov 13, 2026 close).