Biotech stocks surged in after-hours trading on Wednesday, October 22, led by Ventyx Biosciences, which soared over 88% on positive Phase 2 data. A mix of earnings updates, clinical news, and investor interest lifted several names across the sector, including Medpace, Inhibrx, and Acumen Pharmaceuticals. Here's a look at the biggest movers.Shares of Ventyx Biosciences Inc. (VTYX) are up over 88% after hours after the company reported the positive results from its Phase 2 study of oral, once-daily VTX3232 i ...