DOW JONES NEWSWIRES 
 

Thermo Fisher Scientific Inc. (TMO) again extended its $2.1 billion cash offer to buy laboratory-equipment maker Dionex Corp. (DNEX) by a month, as the number of shares tendered pushed above half of those outstanding.

As of 5 p.m. EST Tuesday, about 52% of outstanding shares had been tendered, up from 20% a month ago.

Thermo Fisher, which sells analytical instruments as well as equipment and service for labs and research centers, has been growing through acquisition since its creation in 2006 through the merger of Thermo Electron and Fisher Scientific International. In its most recent quarterly results, earnings rose 8.9% thanks to improved margins despite a decline in revenue. Its bottom line has been strengthening recently after weakness during the recession.

The planned acquisition of Dionex at $118.50 a share would expand Thermo Fisher's offerings of liquid-chromatography products, which are used to analyze chemical substances. The deal would improve Thermo Fisher's standing in markets like environmental analysis, water testing and food safety.

Dionex shares were up two pennies at $117.67 after hours, while Thermo Fisher's weren't active after they closed the regular session down 0.9% at $56.62. Dionex's stock has surged 75% in the past year.

-By Joan E. Solsman, Dow Jones Newswires; 212-416-2291; joan.solsman@dowjones.com

 
 
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