It's not excessive shorting, it's short term traders.
A lot of fast $$$ piled into BPMX Mon & Tue, many are exiting. They don't hang around during a consolidation phase despite the potential of June 1 next week. Speaking of June 1, that's when the fast $$$ will probably show up again lol.
Naked short % was only 39, 26 & 26 last 3 days. FINRA short % report is 31, 30 & 35 last 3 days. Very tame for a speculative bio. Selling on the Bid has outpaced Slapping the Ask the last 2 days. Simply traders taking profits IMO. Patience, Baker Bros & other Tutes are accumulating...they know what the BPMX potential is...