Illumina Shares Gain on Report of Higher Roche Bid

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Illumina Inc. gained the most in almost a year after Swiss newspaper L’Agefi said Roche Holding AG may have agreed to buy the U.S. maker of DNA sequencing equipment at a price 48 percent higher than its original unsuccessful bid.

Illumina jumped 7.8 percent to $56.22 at the close in New York, the biggest single-day increase since Jan. 25. The San Diego-based company has gained 85 percent this year amid the takeover talk.