Citadel ups its stake in QLogic (QLGC) to 4.565M shares, according to a SEC filing. The firm now...

|About: QLogic Corporation (QLGC)|By:, SA News Editor

Citadel ups its stake in QLogic (QLGC) to 4.565M shares, according to a SEC filing. The firm now holds 5.02% of the tech concern. (13G)