Sweden’s Kinnevik, which clashed with Rocket last year over the valuations of some of their joint investments, sold a 6.6 percent stake in Rocket at 19.25 euros per share late on Wednesday, netting 209 million euros . At 1155 GMT, Rocket shares were down 13.1 percent at 18.55 euros, off an earlier 2-1/2 month low of 18.275 euros.