 Shares of Noodles Co. NDLS, -5.43 fell more than 20 in the extended session Wednesday after the restaurant chain reported a surprise quarterly loss and revenues that missed expectations, saying it faced staffing shortages and other challenges related to a COVID-19 surge late last year. Noodles Co. said it lost 4.7 million, or 10 cents a share, in the fourth quarter, compared with a loss of 3.8 million, or 9 cents a share, in the year-ago quarter. 