Shares of Marvell Technology Group Ltd. (NASDAQ:MRVL) are trading higher today as a result of a stake disclosure from private equity firm KKR Financial Holdings LLC (NYSE:KFN). The disclosure shows that KKR has a 6.8 percent stake in Marvell. Marvell is a fabless semiconductor company that manufactures chips. According to Bloomberg, KKR is seeking to restructure the chipmaker through mergers or going private. Shares of Marvell are currently up 6 percent.