After-Hours Stock Movers:

GameStop (NYSE: GME) edge lower by 1.3% after the videogame retailer reported second quarter results, with revenue that missed estimates.

Dave & Buster's Entertainment (NASDAQ: PLAY) rose 8% after it published second quarter EPS that was better than expected, despite a 6.3% declined in comparable sales.

Viridian Therapeutics (NASDAQ: VRDN) fell 3%, paring a 32% intraday gain, after it announced it has commenced an underwritten public offering of $150 million of shares of its common stock and Series B non-voting convertible preferred stock. Earlier it reported positive topline data from the THRIVE phase 3 clinical trial of VRDN-001.

Orion Marine Group (NYSE: ORN) fell 11% after it announced it intends to offer and sell shares of its common stock in an underwritten public offering.