NRG Energy, Mirati Therapeutics, Herbalife Nutrition among premarket losers' pack

Gossamer Bio (GOSS) -62% as PAH candidate reaches main goal in Phase 2 trial.
Mirati Therapeutics (MRTX) -17% amid trial data on adagrasib/Keytruda combo in lung cancer patients.
Herbalife Nutrition (HLF) -11% after the bell on $250M convertible note offering.
Silvergate Capital (SI) -10% CEO says crypto-focused bank has ample liquidity, resilient balance sheet.
Shuttle Pharmaceuticals (SHPH) -9%.
Digital Brands (DBGI) -10%.
NRG Energy (NRG) -8% on reports to acquire Vivint Smart Home for $12/share, 33% premium.
BioVie (BIVI) -7% erasing gains after updating Phase 2 data for Alzheimer's candidate.