AMC Entertainment's shares drop significantly by 14.30% in premarket trading following the company's announcement of a plan to sell up to $250 million in common stock. The stock sale aims to boost liquidity due to soft box office performance in the first quarter. Various financial institutions are involved in the equity distribution agreement. The market reacts negatively to the news, with AMC's stock price falling by 6.63% on the NYSE. The company's decision to sell shares is attributed to cash burn and challenges in the box office sector. AMC's stock value has plummeted over 96% in the past three years, raising concerns about dilution of investors' equity value and the board's inaction.