07:48 AM EDT, 05/10/2024 (MT Newswires) -- MacroGenics ( MGNX ) shares slumped 68% Friday premarket after the company said late Thursday that five patients have died in an ongoing prostate cancer study.

Progyny ( PGNY ) shares retreated 26% after the company reported Q1 revenue that trailed analysts' estimates.

Applied Optoelectronics ( AAOI ) shares fell 18% after reporting weaker Q1 financial results.

JFrog ( FROG ) shares were down 12% following a muted session.

Price: 4.64, Change: -10.03, Percent Change: -68.37