shares of illumina inc ilmn were up about 8 in premarket trading on monday after the wall street journal reported sunday that carl icahn is planning a proxy fight the billionaire activist reportedly believes that the company’s 71 billion acquisition of cancertest maker grail cost shareholders 50 billion regulators in the us and europe have attempted to block the deal icahn plans to nominate three people to the illumina board on monday the journal reported illumina’s stock has declined 361 over the past year while the broader sp 500 spx is down 78