The link is titled CAPSTONE TURBINE INSTITUTIONAL "OWNERSHIP".Look at the top of the page. OWNERSHIP IS NOT BORROWED STOCK. CAN'T OWN WHAT DOESN'T BELONG TO YOU! A SHORT IS BORROWED STOCK THAT THEN IS COVERED ( bought back) TO REPLACE IT AND RETURN IT.
SIMPLE; EASY; ABSENT SUBJECTIVE INTERPRETATIONS BY HUMBLE OPINIONATORS