BUZZ-U.S. STOCKS ON THE MOVE-Biocept, Rigel, Spectrum

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U.S. stocks edged lower in morning trading Monday amid weakness in oil prices, after a conditional agreement by euro zone finance ministers to extend Greece's bailout sent the Dow and S&P to record levels last week. The Dow Jones industrial average was down 0.31 percent at 18,083.35, the S&P 500 was down 0.24 percent at 2,105.28 and the Nasdaq Composite was down 0.16 percent at 4,948.06.

** TESARO INC (NasdaqGS: TSRO - news) , $50.03, +13.19 pct

Citigroup (NYSE: C - news) analysts raised their price target on the cancer drugmaker's stock to $79, according to Theflyonthewall.com.

** BIOCEPT INC (NasdaqCM: BIOC - news) , $2.7201, +87.59 pct

The cancer test maker said its blood-based diagnostic test was effective in determining hormone levels in breast cancer patients in a study at the Columbia University College of Physicians and Surgeons.

** COOPER TIRE & RUBBER CO (NYSE: CTB - news) , $35.36, -6.23 pct

The tire maker said higher cost structure would hit its operating profit in 2015. "In western Europe, markets have softened, and we expect continued volatility in Russia and eastern Europe," Chief Executive Roy Armes said. The company's fourth-quarter sales fell 5 pct to $820 million.

** AAR CORP (NYSE: AIR - news) , $31.5, $31.5, +5.32 pct

** TRANSDIGM GROUP INC, $222.23, +3.98 pct

The company, which provides services to the U.S. government and commercial clients, will sell its cargo handling business, Telair Cargo Group, to TransDigm Group Inc for $725 mln to focus on its aviation services business. AAR said it also planned to sell its unprofitable precision systems manufacturing business.

** PTC THERAPEUTICS INC (NasdaqGS: PTCT - news) , $64, +15.96 pct

The rare disease drugmaker is exploring sale amid takeover interest from several pharmaceutical companies, including Shire Plc and BioMarin Pharmaceutical Inc (NasdaqGS: BMRN - news) , Reuters reports, citing sources.

** 500.COM LTD, $13.06, -16.60 pct

The Chinese online lottery platform denied talk Chinese government plans to revoke its license and that authorities had detained CEO Man San Law.

"The rumors ... are conveniently being spread during China's seven-day new years' holiday," says company email sent to investors and seen by Reuters. "Mr. Law has not been detained and the company's business continues to operate normally."

** ELI LILLY AND CO, $70.84, -1.45 pct

Eli Lilly said it would delay its application to market its once-daily diabetes treatment, basal insulin peglispro, beyond the current quarter.

** SHAKE SHACK INC (NYSE: SHAK - news) , $42.91, -4.37 pct

Forbes said late on Friday that the hamburger chain is based on "unsound economics." The report further added that Shake Shack investors may be in for disappointment as company's operating margins are low and closer to those of Noodles & Co than Chipotle Mexican Grill Inc (NYSE: CMG - news) or McDonald's Corp.

** COMPUTER SCIENCES CORP, $71.79, +7.26 pct

Dealreporter said the information technology services in discussions to sell in a two-part deal, citing unnamed sources

** AETNA INC (NYSE: AET - news) , $100.54, +2.68 pct

** HUMANA INC (NYSE: HUM - news) , $165.22, +5.83 pct

** ANTHEM INC (NYSE: ANTM - news) , $146.51, +1.33 pct

** UNITEDHEALTH GROUP INC, $116.15, +3.13 pct

** CIGNA CORP (NYSE: CI - news) , $120.79, +1.90 pct

** CENTENE CORP (NYSE: CNC - news) , $62.13, +3.81 pct

** WELLCARE HEALTH PLANS INC (NYSE: WCG - news) , $90, +6.36 pct

Shares (Frankfurt: DI6.F - news) of U.S. health insurers surged after U.S. Department of Health and Human Services proposed a cut in funding of Medicare Advantage health plans. Analysts said the move erases potential for a larger-than-expected cut.

** APPLE INC (NasdaqGS: AAPL - news) , $131.959, +1.90 pct

The stock, at record highs, remained under-owned by mutual funds and hedge funds. At 15.2 times its forward price/earnings ratio, the stock traded at a discount to the S&P 500 and the IT sub-sector.

Goldman Sachs (NYSE: GS-PB - news) analyst Bill Shope said near term catalysts included Apple Pay, Apple Watch (April launch), sustained iPhone 6 growth and the $130 billion capital allocation update.

** RIGEL PHARMA INC, $3.54, +38.82 pct

Rigel and Bristol-Myers Squibb Co will collaborate to develop and market cancer immunotherapies based on Rigel's TGF beta receptor kinase inhibitors-in-development.

** HOME LOAN SERVICING SOLUTIONS LTD, $18.255, +8.92 pct

** NEW RESIDENTIAL INVESTMENT CORP, $14.12, +7.87 pct

New Residential Investment will buy Home Loan Servicing for about $1.3 bln in cash. The deal value of $18.25/share represents about a 9 percent premium to Home Loan Servicing's closing price on Friday.

** CYBERARK SOFTWARE LTD, $61.43, -12.68 pct

JP Morgan downgraded the cyber security software maker's stock to "underweight" from "neutral", saying "a lot needs to go right to justify current share price... a lot of positive sales execution and expanded distribution is already factored into the stock."

** BALLARD POWER SYSTEMS INC (Toronto: BLD.TO - news) , $2.7299, +13.27 pct

The fuel cell maker signed two fuel cell technology contracts, one with Ardica Technologies and one with an unnamed automotive equipment manufacturer.

** TOWER SEMICONDUCTOR LTD (NasdaqGS: TSEM - news) , $16.1625, +18.06 pct

TowerJazz, which includes the Israeli chipmaker and its U.S. unit Jazz Semiconductor, said fourth-quarter net profit doubled and revenue grew 75 percent. It expects first-quarter revenue to rise about 70 percent.

** CELLDEX THERAPEUTICS INC (NasdaqGS: CLDX - news) , $24.92, +17.49 pct

FDA granted the company's drug rindopepimut breakthrough therapy status. Rindopepimut is an experimental immunotherapy that targets tumor cells in patients with glioblastoma multiformem, a type of brain tumor.

** DIGITAL ALLY INC (NasdaqCM: DGLY - news) , $13, +17.75 pct

The maker of wearable cameras for police forces was awarded a five-year contract by U.S. General Services Administration. The contract allows federal, state and local governmental customers to buy the company's products at approved pricing.

** EXXON MOBIL (Swiss: XOM.SW - news) , $88.94, -1.09 pct

** CHEVRON CORP, $107.53, -0.99 pct

** CONOCOPHILLIPS (NYSE: COP - news) , $66.81, -0.85 pct

** SCHLUMBERGER LTD, $85.27, -0.71 pct

** HALLIBURTON CO, $43.12, -0.55 pct

** NATIONAL-OILWELL VARCO INC, $53.99, -0.88 pct

** SEADRILL LTD, $11.93, -3.32 pct

** TRANSOCEAN LTD (LSE: 0QOW.L - news) , $16.37, -3.76 pct

** NABORS INDUSTRIES LTD (NYSE: NBR - news) , $12.96, -4.14 pct

** GOODRICH PETROLEUM CORP (NYSE: GDP - news) , $4.27, -2.95 pct

** BASIC ENERGY SERVICES INC (NYSE: BAS - news) , $6.66, -6.20 pct

** PENN WEST PETROLEUM LTD (NYSE: PWE - news) , $2.1, -6.67 pct

Oil prices fall on worries about oversupply in North America and a strong dollar. Brent crude was trading $1.66 lower at $58.56/bbl, while U.S. WTI crude April futures were down $1.54 at $48.80 [ID;nL4N0VX0AY]

** AAR CORP, $31.5, +5.32 pct

** TRANSDIGM GROUP INC, $222.23, +3.98 pct

Aviation services provider AAR Corp said it would sell its cargo handling business, Telair Cargo Group, to TransDigm Group for $725 million in cash.

** HARMONY GOLD MINING CO, $2.375, -1.86 pct

An underground fire broke out at the company's Kusasalethu mine near Johannesburg on Sunday. The miner said it rescued all 486 miners trapped underground.

** ARMSTRONG WORLD INDUSTRIES INC (NYSE: AWI - news) , $55.75, +1.73 pct

The construction materials maker said it would spin off its flooring business to concentrate on its ceilings unit. Armstrong World also reported lower-than-expected fourth-quarter revenue, hurt by lower sales in the Americas and a stronger dollar.

** OCWEN FINANCIAL CORP (NYSE: OCN - news) , $10.01, +4.27 pct

** NATIONSTAR MORTGAGE HOLDINGS INC, $30.79, +10.24 pct

Mortgage servicer Ocwen said it would sell a portfolio of residential mortgage servicing rights worth $9.8 billion to Nationstar Mortgage (NYSE: NSM - news) . The portfolio consists of about 81,000 performing loans owned by Freddie Mac.

** BOEING CO (NYSE: BA - news) , $154.32, -2.52 pct

Goldman Sachs downgraded the aircraft maker's stock to "sell" from "neutral", according to Theflyonthewall.com. Of 23 other analysts covering it, 15 have "buy" or higher ratings, while seven have "hold" and one has "strong sell".

** SPECTRUM PHARMACEUTICALS INC (NasdaqGS: SPPI - news) , $6.1101, -18.10 pct

A Nevada court ruled in favor of Novartis AG (LSE: 0QLR.L - news) , deeming "invalid" two patents covering the cancer-focused biotech's injection, Fusilev.

Roth Capital downgraded the stock to "neutral", saying the company will be hurt by the increasing risk to the Fusilev revenue stream, and halved its price target to $7 from $15.

** VALEANT PHARMACEUTICALS INTERNATIONAL INC (NYSE: VRX - news) , $196.45, +13.38 pct

** SALIX PHARMACEUTICALS LTD (NasdaqGS: SLXP - news) , $155.955, -1.20 pct

Canada's Valeant agreed to buy gastrointestinal drugmaker Salix for about $10.1 billion, the companies said on Sunday.

Cantor Fitzgerald raised its price target on Valeant's stock to $214 from $184.

** HSBC HOLDINGS PLC (HKSE: 0005.HK - news) , $44.52, -4.63 pct

The bank reported a deeper-than-expected 17 percent slide in annual pretax profit and cut its earnings target, saying allegations its Swiss business had helped customers to dodge taxes had brought shame on it.

BREAKINGVIEWS-HSBC's operating woes trump Swiss tax furore:

** TWENTY-FIRST CENTURY FOX INC, $35.345, -3.32 pct

** DISCOVERY COMMUNICATIONS INC (NasdaqGS: DISCA - news) , $32.615, +5.45 pct

Rupert Murdoch's Twenty-First Century Fox, which like other broadcasters is battling a shift to on-demand TV, denied there had been any takeover talks with Discovery, owner of Animal Planet and the Discovery Channel, as reported by the Australian Financial Review.

** POLYPORE INTERNATIONAL INC (NYSE: PPO - news) , $59.75, +12.84 pct

** 3M CO, $168.45, +0.20 pct

Asahi Kasei Corp, a Japanese chemicals maker, said it would buy Polypore's energy storage segment for $2.2 billion. 3M Co will buy the assets of Polypore's Separations Media segment for about $1 billion and Asahi Kasei will receive the cash proceeds.

** ANGLOGOLD ASHANTI (Xetra: AOD.DE - news) , $11.17, -2.62 pct

Africa's top bullion producer said it fell into a loss in the fourth quarter of last year because of costs associated with layoffs and restructuring at its key Ghana operation and accounting adjustments.

** GLOBE SPECIALTY METALS INC (NasdaqGS: GSM - news) , $15.89, +3.38 pct

The silicon-alloy producer and Spain's Grupo FerroAtlantica SA said they would merge to form a company controlled by FerroAtlantica shareholders. (Compiled by Sneha Banerjee in Bengaluru; Editing by Joyjeet Das)