Analysts' Actions: AN, DAN, DLB, GILD

NEW YORK (TheStreet) -- CHANGE IN RATINGS

Amgen(AMGN)(AMGN) was downgraded to Hold at TheStreet Ratings.

Autonation(AN) was upgraded at Goldman Sachs from Sell to Neutral. Valuation call, as the stock is down 19% over the past month, Goldman said.

Dana Holding Corp.(DAN) was initiated with a Buy rating at UBS. $16 price target. See limited downside at current levels, UBS said.

Dolby(DLB) was initiated with a Market Perform rating at JMP Securities. Company is losing sales from Windows 8, JMP said.

Gilead Sciences(GILD) was upgraded at Citigroup from Neutral to Buy. $49 price target. Company can potentially dominate hepC market with Pharmasset(VRUS) acquisition.

Gilead Sciences was upgraded at BMO Capital Markets from Market Perform to Outperform. $49 price target. Pharmasset acquisition is a positive step toward longer term sustainable growth, BMO said.

Iconix Brand Group(ICON) was initiated with a Buy rating at Citigroup. $20 price target. No inventory, no manufacturing, and two-thirds of revenue guaranteed, Citigroup said.

Intuit(INTU) was initiated with a Buy rating at ThinkEquity. $62 price target. Company can deliver double-digit sales growth in each of its core franchises, ThinkEquity said.

Microsoft(MSFT) was initiated with a Hold rating at ThinkEquity. $26 price target. Company could face pricing pressure, given competition from non-PC devices.

Nvidia(NVDA) was upgraded from Underperform to Buy at Needham. Valuation call, based on an $18 price target, Needham said.

Och-Ziff(OZM) was started with a Buy rating at Ticonderoga. $9 price target. Company has a more stable stream of management fees, Ticonderoga said.

Piper Jaffray(PJC) was downgraded to Sell at TheStreet Ratings.

Sigma Aldrich(SIAL) was initiated with an Overweight rating at JP Morgan. $72 price target. Company is carrying a lot of operating momentum into the new year, JP Morgan said.

True Religion(TRLG) was initiated with a Buy rating at Citigroup. $42 price target. Global secular growth story, Citigroup said.

Tesla Motors(TSLA) was initiated with a Hold rating at Wunderlich. Valuation call, based on a $30 price target, Wunderlich said.

Pharmasset(VRUS) was downgraded at UBS from Buy to Neutral. $137 price target. Value captured with acquisition by Gilead, UBS said.

WGL(WGL) was upgraded at Brean Murray said. $48 price target. Company boosted its forecast, Brean Murray said.