Emerson Electric Co. went public with its months-long pursuit of National Instruments Corp., revealing a bid to take over the maker of measurement systems for about $7 billion.
St. Louis, Missouri-based Emerson made a cash bid of $53 per share in November, it said in a statement Tuesday, confirming an earlier Bloomberg News report. The latest bid was an improvement on an earlier proposal of $48 per share made in May, it said.