Bas; While it's possible that the data was leaked to the shorts, it wouldn't have been an unreasonable guess for them, seeing the run-up on mere hopeful anticipation VS the dismal history of prior ALZ drug candidate lack of success.
Though, i agree, we've seen them simply gang up on small, low float stocks.
But really, this mostly only affects traders and not the LTBH folks like myself.
Traders generally lose $ and are disloyal to the principle of supporting the stock to help folks with ALZ.