AMC Entertainment raised about $250 million of new equity capital on Monday during the revived meme stock craze triggered by the return of "Roaring Kitty."On Monday, the movie theater operator sold 72.5 million shares in an at-the-market equity offering. AMC sold those shares at an average price of $3.45 per share before commissions and fees.AMC shares more than doubled in premarket trading Tuesday following the stock sale.The average selling price is at the lower range of Monday's wild trading where AMC mo ...