(Bloomberg) -- Swiss Re AG shares rose the most in more than six years after the company confirmed that it’s in talks with SoftBank Group Corp. about the Japanese company taking a stake in the re-insurer.

The stock gained 6.8 percent in Zurich on Thursday, the highest intraday rise since November 2011, and was trading 5.9 percent higher at 9:17 a.m. local time. SoftBank could purchase as much as a third of Swiss Re AG, people familiar with the talks said, asking not to be identified because no agreement has been reached. The transaction could be valued at more than $10 billion.

Swiss Re confirmed the talks late Wednesday and said they are at a very early stage, without giving more information. SoftBank shares rose 1 percent in Tokyo trading on Thursday. Before the market close Wednesday, Swiss Re had market value of 31 billion francs ($33 billion). 

If the deal is successful, it would add to a growing number of stakes being snapped up by SoftBank. The Japanese conglomerate has made investments in businesses including ride-hailing, chipmaking, office-sharing, satellite-building, robot-making and even indoor kale-farming.

To contact the reporter on this story: Giles Turner in London at gturner35@bloomberg.net.

To contact the editors responsible for this story: Peter Elstrom at pelstrom@bloomberg.net, Dale Crofts

©2018 Bloomberg L.P.

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