(For faster updates on individual market-movers, Eikon users please use search string "STXBZ US"; for more market insights, including options activity, ; for the Day Ahead newsletter, link.reuters.com/mex49s; for the Morning News Call newsletter, link.reuters.com/nex49s)
U.S. stocks were moderately lower at midday on Monday as Hong Kong protests added to worries about growth in China. The Dow Jones industrial average was down 0.53 percent at 17,023.03 and the S&P 500 was down 0.50 percent at 1,972.98.
** AMBIT BIOSCIENCES CORP, $15.23, +85.73 pct
Japanese drugmaker Daiichi Sankyo Co Ltd has agreed to acquire U.S. biopharmaceutical company Ambit in a deal valued up to $410 million as it looks to build its presence in oncology, the companies said.
** TONIX PHARMACEUTICALS HOLDING CORP, $6.9201, -50.43 pct
The company said its lead drug for pain management failed the main goal of a mid-stage study.
** EINSTEIN NOAH RESTAURANT GROUP INC, $20.15, +50.49 pct
The owner of Noah's New York Bagels chain said it would be taken private for about $374 million, or $20.25 per share, by an affiliate of Joh Benckiser, the investment vehicle of Germany's billionaire Reimann family.
** CIVEO CORP, $13.55, -46.80 pct
The provider of oilfield accommodation services, recently spun off by Oil States International Inc, surprised Wall Street on Monday by saying it would not convert to a real estate investment trust (REIT) and would instead relocate to Canada for tax purposes.
** TIBCO SOFTWARE INC, $23.6601, +21.27 pct
The business software maker said private equity firm Vista Equity Partners would take it private for $4.3 billion in the largest technology buyout this year.
** ATHLON ENERGY INC, $58.321, +24.80 pct
** ENCANA CORP, $21.5, +1.75 pct
Encana, Canada's largest natural gas producer, said it would buy Athlon Energy for $5.93 billion in cash, excluding debt, as it accelerates its plan to focus on more-lucrative oil and natural-gas liquids (NGLs).
** DREAMWORKS ANIMATION SKG INC, $28.705, +28.38 pct
Japan's SoftBank Corp is in talks to acquire DreamWorks, the Hollywood studio behind the "Shrek" and "Madagascar" movie hits, a person with knowledge of the situation said.
** ENDOLOGIX INC, $10.99, -17.18 pct
The medical devices maker said it expected a bigger 2014 adjusted loss due to an inventory charge related to the launch of Duraply, used to make its stents. The company also said it expected third-quarter revenue of $37 million, below the average analyst estimate of $37.6 million.
** CTC MEDIA INC, $6.87, -20.12 pct
Russia's lower house of parliament passed a law on Friday aimed at limiting foreign ownership of Russian media holdings to 20 percent, in a move critics say will reinforce the dominance of Kremlin-backed media.
** GOPRO INC, $89.96, +9.57 pct
The company, which makes wearable cameras used by surfers, skydivers and other action junkies to post their exploits online, on Monday unveiled HERO4, "the highest performance line of capture devices the company has ever made".
** CLOVIS ONCOLOGY INC, $47.27, +11.25 pct
The company will present data from its mid-stage study of ovarian cancer drug rucaparib at a European conference. An early stage study showed that rucaparib was well tolerated with a manageable safety profile.
** TEXTURA CORP, $26.0193, -7.80 pct
Short-seller Citron Research accused the software maker of making fraudulent claims about gross margins for its flagship product, its total addressable market, and of keeping a lawsuit under wraps.
** ALIMERA SCIENCES INC, $5.31, +7.82 pct
** PSIVIDA CORP, $4.42, +3.03 pct
The U.S. Food and Drug Administration approved the companies' vision-loss treatment Iluvien after three rejections. PSivida said the approval entitles it to get a milestone payment of $25 million.
** EXELIXIS INC, $1.594, +2.18 pct
The cancer drug developer's skin cancer drug cobimetinib combined with Genentech's Zelboraf doubled the time before the disease worsened, compared to only Zelboraf. Exelixis is entitled to royalties from sales of the drug and as well as half the profits and losses.
** PETROLEO BRASILEIRO PETROBRAS SA, $14.805, -10.05 pct
** VALE SA, $10.88, -2.77 pct
** GOL LINHAS AEREAS INTELIGENTES SA, $4.93, -7.33 pct
** AMBEV SA, $6.535, -3.76 pct
** ITAÚ UNIBANCO HOLDING SA, $14.37, -7.53 pct
An election poll released on Friday showed Brazilian President Dilma Rousseff gaining on challenger Marina Silva ahead of Sunday's election. Brazilian investors have been heavily critical of Rousseff's government for enacting policies that have gone against minority shareholder interests in state-run companies and a tendency to enact one-off stimulus measures rather than structural reforms.
** NXT-ID INC, $2.5, -9.75 pct
The biometric authentication company said on Friday production of some components for its Wocket smart wallet had been delayed due to vendor issues. The company said the production of other components on schedule and it was gearing up for full-scale production in early 2015.
** VIGGLE INC, $3.8701, +18.35 pct
The entertainment services provider reported a 15 percent rise in quarterly revenue. The company said its net registered users jumped about 75 percent to 5.4 million at the end of the fourth quarter.
** AMAG PHARMACEUTICALS INC, $29.195, +25.95 pct
Amag said it would buy privately held women's healthcare company Lumara Health Inc for $675 million in cash and stock, gaining access to the only approved product designed to reduce the risk of preterm birth.
** NISOURCE INC, $40.85, +5.88 pct
The energy company said it would split into publicly traded companies, separating its utilities and pipeline businesses. Under the plan, NiSource will list its natural gas pipeline division as Columbia Pipeline Group, which is expected to trade on the New York Stock Exchange under the ticker "COLP." NiSource will remain a natural gas and electric utilities business, and its listing will not change.
** APPLE INC, $99.87, -0.87 pct
The European Commission will publish on Tuesday its reasons for opening an in-depth inquiry into the Irish government's tax treatment of Apple, a Commission spokesman said.
** ALIBABA GROUP HOLDING LTD, $88.76, -1.88 pct
The Chinese e-commerce heavyweight's options contracts were active in their first day of trading on U.S. exchanges on Monday, with bullish and bearish bets about even in the early going.
** SONIC AUTOMOTIVE INC, $24.76, +6.31 pct
Morgan Stanley upgraded the auto dealership's stock to "overweight" from "under weight" and raised its price target to $30 from $22. Analyst Ravi Shanker in a note titled "the Tesla of dealers?" says risk-reward is good to own, highlighting the company's One-Sonic One-Experience sales process.
** EMCORE CORP, $5.71, -4.99 pct
Needham downgraded the communication chip provider's stock to "hold" from "buy", becoming the only one among the three brokerages covering the stock to not rate it "buy".
** LENTUO INTERNATIONAL INC, $2.01, -6.94 pct
The China-based automobile retailer reported a lower profit in the second quarter. The company said gross margin fell to 10.5 percent from 12.1 percent a year earlier as company offered discounts on high-end brands with higher average selling prices.
** BUILDERS FIRSTSOURCE INC, $5.61, -2.09 pct
The National Association of Realtors said on Monday its Pending Home Sales Index, based on contracts signed last month, fell 1.0 percent to 104.7. Economists polled by Reuters had expected a decline of just 0.1 percent.
** SUNEDISON INC, $19.68, +1.50 pct
The solar company says it submitted with the U.S. Securities and Exchange Commission plans to take its yieldco public. The company said the yieldco is focused on generating clean power assets in emerging markets, primarily in Asia (excluding Japan) and Africa
** PETROCHINA, $129.18, -3.24 pct
** CHINA LIFE INSURANCE CO, $41.7, -2.34 pct
** CHINA PETROLEUM AND CHEMICAL, $87.17, -3.17 pct
Shares of the China-based companies fell after protests in Hong Kong added to worries about growth in China. (Compiled by Anannya Pramanick; Edited by Maju Samuel)