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Traders work on the floor of the New York Stock Exchange.
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Traders work on the floor of the New York Stock Exchange.

Check out which companies are making headlines before the bell:

Comcast — The NBCUniversal parent earned an adjusted 81 cents per share, one penny shy of estimates, but revenue was above forecasts. Comcast also raised its quarterly dividend by 10 percent to $1.10 per share, and added $10 billion to its stock buyback program. (Disclosure: NBCUniversal is parent of CNBC.com.)

General Motors — The automaker reported adjusted quarterly profit of $1.39 per share, above estimates of $1.21, with revenue also above forecasts. GM also reported record North American profit for 2015, helped by a richer mix of trucks and SUVs, among other factors.

Merck — The drug giant beat estimates by 2 cents with adjusted quarterly profit of 93 cents per share, though revenue was shy of estimates. Merck also is predicting 2016 profit of $3.60 to $3.75 per share, compared to consensus estimates of $3.72.

Marvell Technology — Starboard Value has taken a 6.7 percent stake in the semiconductor maker, saying its shares are undervalued.

Becton Dickinson — The medical products maker reported adjusted quarterly profit of $1.96 per share, 12 cents above estimates. Its top line fell slightly short as costs rose, but the company raised its full-year forecast.

Ingersoll-Rand — The maker of HVAC and other products increased its quarterly dividend by 10 percent to 32 cents per share.

Southern Co. — The utility company came in 1 cent ahead of estimates with adjusted quarterly profit of 44 cents per share. However, its revenue was well short of estimates as lower fuel costs were passed on to customers.

Yahoo — Yahoo reported adjusted quarterly earnings of 13 cents per share, 3 cents above estimates, with revenue also beating forecasts. Yahoo also announced a restructuring which will see it trim 15 percent of its workforce, and explore strategic alternatives. (Disclosure: CNBC has a content-sharing partnership with Yahoo's finance site.)

Chipotle Mexican Grill — Chipotle said the food safety investigation at one of its California restaurants has now expanded into a national investigation. The restaurant chain saw same-restaurant sales plunge 36 percent in January due to the E. coli scare. The news is pressuring the shares, even though Chipotle reported quarterly profit of $2.17 per share, beating estimates of $1.85.

3M — 3M increased its quarterly dividend by 8 percent to $1.11 per share, and also announced a $10 billion share repurchase program.

IAC/InterActiveCorp — IAC reported adjusted quarterly profit of 75 cents per share, missing estimates of 93 cents, with revenue also below forecasts. The owner of a variety of web businesses spun off its dating website segment Match Group last year. IAC owns digital media sites like Daily Beast, About.com, and Investopedia.

Match Group — Match reported adjusted quarterly profit of 24 cents per share, 4 cents above estimates, but the dating website operator's revenue fell below forecasts. Match was hurt by a drop in revenue from its non-dating services like Princeton Review and Tutor.com.

Edwards Lifesciences — Edwards beat estimates by a penny with adjusted quarterly profit of 63 cents per share, while revenue also beat estimates. The maker of medical devices also raised its 2016 earnings guidance on stronger sales of products like its nonsurgical heart valves.

Syngenta — Syngenta agreed to be bought by state-owned ChemChina for $43 billion. The deal for the Swiss agricultural chemicals maker still has regulatory hurdles to clear, though Syngenta CEO John Ramsay told Reuters those barriers would not be very challenging. Monsanto had made an unsuccessful bid for Syngenta last year.

Gilead Sciences — Gilead reported adjusted quarterly profit of $3.32 per share, 32 cents above estimates, with revenue also beating forecasts. Gilead's results were helped by strong sales for its hepatitis C drugs Sovaldi and Harvoni. Gilead also raised its quarterly dividend by 10 percent and authorized an additional $12 billion in share repurchases.

Editas Medicine, BeiGene Ltd. — These two will become 2016's first U.S. initial public offerings after pricing their shares last night. Editas raised $94.4 million, while BeiGene raised about $158 million.


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