Large owner Dere Construction Taahhut A.S. disposed of $1,768,873 worth of shares (544,654 units at $3.25), acquired $1,768,873 worth of shares (544,654 units at $3.25), sold $4,118 worth of shares (1,999 units at $2.06) and bought $12,891,120 worth of shares (7,026,105 units at $1.83) (SEC Form 4)