Why Is Karyopharm Therapeutics ( $KPTI ) Stock Down -7.38% Today? (Find out why any stock moved today on Tickeron.) KPTI shares fell about 7.38% to $1.13 in Thursday's session, down from a prior close of $1.22. The decline extends a prolonged slide driven by acute financial distress and a looming forbearance deadline. Karyopharm is operating under a Forbearance Agreement with lenders after missing debt payments, with liquidity concerns front and center. $MBRX $GLUE $ARRY $DMRA