Illumina Inc.’s acquisition of Grail Inc., of Menlo Park, Calif., may or may not prove to be a case of jumping the regulatory gun, but the move to date has not racked up significant financial penalties for the company. That may soon change per a statement by the European Commission, which said that Illumina may find itself on the receiving end of “hefty fines,” a statement made by EC executive vice president Margrethe Vestager.