Shares of National Instruments Corp. NATI rose nearly 4% in premarket trading on Wednesday, after Bloomberg reported that Emerson Electric Co. EMR was nearing a deal to acquire the test and measurement making company. Citing sources, the report said Emerson was discussing an offer worth $60 per share, beating out another suitor, Fortive Corp. FTV, with an announcement possibly due this week. National Instruments confirmed in January that it had received a $53 per-share buyout bid from Emerson, but that it would wait to hear from other potential buyers. Emerson also confirmed at the time that it had first approached National…
