Shares of gene sequencing leader Illumina (ILMN 2.44%) rallied 36.6% in December, according to data from S&P Global Market Intelligence.Investors might not be quite so excited, as Illumina entered the month more than 80% below its all-time highs from 2021. But hopes for a bottoming and recovery surfaced in December, as Illumina received several positive analyst notes, and activist investor Carl Icahn made his next move in shaking up the company's board of directors.Is the company at the start of its recover ...