Planet Green (PLAG) shares were down more than 77% premarket Wednesday after an over 927% rise in the previous close.

Silexion Therapeutics (SLXN) stock was 54% lower after the company priced a $2.5 million securities offering.

WF International (WXM) shares were down 31%, swinging from Tuesday's 98% rise.

Snail (SNAL) stock was 24% lower following its Q2 financial results.

Concorde International Group (CIGL) shares were down nearly 24%, paring Tuesday's 33% rise.