(For faster updates on individual market-movers, Eikon users please use search string "STXBZ US"; for the Day Ahead newsletter, link.reuters.com/mex49s; for the Morning News Call newsletter, link.reuters.com/nex49s) U.S. stocks dipped on Monday as initial gains vanished, as did a brief rebound in crude oil prices.
The Dow Jones industrial average was down 0.19 percent at 17,248.4, the S&P 500 was down 0.17 percent at 1,998.96 and the Nasdaq Composite was down 0.41 percent at 4,634.376.
** SOPHIRIS BIO INC, $0.59, -79.08 pct
The drug developer said interim data showed that its only pipeline compound did not meet a predetermined threshold for efficacy in treating lower urinary tract symptoms of enlarged prostate.
** UNWIRED PLANET INC, $0.8491, -39.35 pct
The intellectual property and technology licensing company said the claim construction order in their pending case against Google Inc is "disappointingly negative and will materially impact our case". Unwired Planet's unit filed the suit against Google and Apple Inc for ten patents related to mobile technology and cloud computing in September 2012.
** TALISMAN ENERGY, $5.05, +17.72 pct
Spanish oil major Repsol said it would discuss on Monday a takeover offer for 100 percent of Calgary-based Talisman, which is also being circled by other potential bidders.
The potential bid Canada's fifth-largest independent petroleum producer could be in a range between $6 and $8 per Talisman share, the Financial Times said last week. That represents a premium of up to 55 percent to Friday's closing price and give the company a value of as much as $8 billion.
** SORRENTO THERAPEUTICS INC, $7.25, +25.00 pct
The cancer drugmaker said it partnered with NantWorks founder, and biotechnology entrepreneur Dr Patrick Soon-Shiong, who took a 19.9 percent stake in Sorrento by buying shares at $5.80 each, which was closing price on Friday.
** FRONTLINE LTD, $2.66, +18.22 pct
A jump in freight rates boosted by winter season and sharp drop in oil prices continue to push shares of the crude oil tanker company shares higher. The company's Oslo-listed shares also soared.
** AMERICAN REALTY CAPITAL PROPERTIES INC, $8.2872, -7.82 pct
The real estate investment trust said its Chief Executive David Kay, Executive Chairman Nicholas Schorsch and Chief Operating Officer Lisa Beeson quit. The company, which had announced a $23 million accounting error in October, has appointed William Stanley appointed as interim CEO.
** OPKO HEALTH INC, $8.88, +8.56 pct
The drug developer licensed its hormone therapy to Pfizer Inc for an upfront payment of $295 million. The therapy, hGH-CTP, is used to treat patients with growth hormone deficiency (GHD).
** TWITTER INC, $37.6, +1.35 pct
JMP Securities started coverage of the stock with a "market outperform" rating and a $49 price target. "We acknowledge there may be some risk in the short-term around 4Q MAU (monthly active users) growth, but we believe this is priced in at current levels and we expect MAUs to rebound in 1Q15 as overall engagement benefits from Twitter's product improvements," the brokerage said.
** EXCO RESOURCES INC, $2.12, -5.36 pct
The company suspended it dividend. "In view of the recent decline in oil prices and oil and natural gas companies` securities, the Board believes that EXCO's shareholders will be better served by reinvesting in our business rather than paying a dividend at this time," Chairman Jeff Benjamin said.
** RIVERBED TECHNOLOGY INC, $20.385, +8.78 pct
Thoma Bravo LLC and Ontario Teachers' Pension Plan said they would buy the network equipment maker in a deal that valued the company at about $3.6 billion. The firms offered $21 per share in cash, representing a premium of 12 percent to Riverbed's Friday closing price.
"We believe Riverbed could have ultimately seen a higher price in this bidding process if the company had sought out strategic alternatives before execution issues surfaced," FBR analyst Daniel Ives said.
** CIRRUS LOGIC INC, $22.54, +19.64 pct
Barclays raised its price target on the audio chipmaker's stock to "overweight" from "underweight" and hiked its price target to $28. Barclays analysts expect Cirrus will supply more audio chips for Apple Inc's iPhone 6S and that the company would get a contract for Samsung Electronics Co Ltd's upcoming Galaxy S6 device.
** ORACLE, $41.08, +2.83 pct
Morgan Stanley raised its rating on the enterprise software maker to "overweight" from "equal-weight" and hiked its price target to $50 from $45, citing a customer survey that suggested accelerating cloud apps growth in next year.
"An improved perception of Oracle's positioning for the secular transition to the cloud has the potential to lift the multiple investors are willing to pay for what has proven to be highly durable EPS growth," the brokerage said.
** PETROLEO BRASILEIRO SA, $6.4, -9.99 pct
The Brazilian state-run oil company delayed the release of its third-quarter financial results for a second time on Friday as a result of new developments in a widening corruption probe.
** TUNIU CORP, $13.925, +4.70 pct
Investment firm Hony Capital and e-commerce firm JD.com Inc have led a $148 million round of investment into the Chinese travel company, tapping into the country's fast-growing tourism market.
** PETSMART INC, $80.94, +4.21 pct
The pet supply retailer succumbed to calls from some shareholders for a sale on Sunday with an agreement to be bought by a private equity consortium led by BC Partners Ltd for $8.7 billion, in the largest leveraged buyout of the year. The offer price is $83.00 per share in cash.
** ITAU UNIBANCO HOLDING SA, $12.2, -3.33 pct
Goldman Sachs removed the Sao Paolo-listed stock of Brazil's largest bank by market value from its Latin America Spotlight List - a group of shares poised to outperform markets within next 12 months.
The brokerage cut its rating on preferred stock to "neutral" from "buy", citing impact of Brazil's slowing economy on Itaú's earnings over next year.
** HORTONWORKS INC, $24.395, -7.52 pct
Shares of the data analytics software company fell on Monday after rising as much as 65 percent on their debut on Friday. The Yahoo Inc -backed company's IPO raised $100 mln after it was priced at $16/share, well above expected range. (Compiled by Anannya Pramanick in Bangalore; Editing by Savio D'Souza)