Western Digital, Seagate, SanDisk climb as brokerages boost price targets

** Shares of major data storage companies gain after brokerages raise their price targets

** Western Digital WDC rises 3% to $118.90, while Seagate STX up 2.5% to $219.63; Sandisk SNDK advances 9.1% to $127.56

** Citigroup raises PT on WDC to $135 from $110, STX to $250 from $215, SNDK to $150 from $125

** Cites "incrementally better sentiment surrounding storage demand with solid supply/demand dynamics"

** Wells Fargo raises PT on WDC to $150 from $95, STX to $240 from $160, SNDK to $115 from $50

** Highlights stronger structural demand for nearline hard disk drives and improved gross margin expectations

** Memory chip manufacturer Micron Technology MU also up 5.5%

** Including session's move, WDC up 162% YTD, STX gains 152.7%

** SNDK, which split from WDC, is up about 250% since its listing in February