Early Movers: S, DISH, C, PCS & More

Check out which companies are making headlines before the bell on Monday:

Sprint Nextel, Dish Network - DISH Network has made a $25.5 billion cash-and-stock offer for Sprint, worth $7 per share. Dish says the offer is worth 13 percent more than the takeover deal for Sprint already in place with Japan's Softbank. Sprint has so far declined comment on the offer.

Citigroup - The bank reported quarterly profit of $1.29 per share, excluding certain items, 12 cents above estimates, with revenue also beating consensus.

MetroPCS - The company's board has approved an amended takeover deal from Deutsche Telekom's T-Mobile USA unit, and has urged shareholders to do the same.

(Read More: See the Day's Top Percentage Winners & Losers)

Procter & Gamble - The consumer products giant raised its quarterly dividend by 7 percent to just over 60 cents per share, marking the 57th consecutive year it has increased its quarterly payout.

JPMorgan Chase - A group of pension funds, including AFSCME and the New York City Pension Funds, is urging shareholders to vote in favor of splitting the chairman and CEO roles when the issue is voted upon at the banks annual meeting.

Mining stocks are already being hit hard by the commodities sell-off this morning, including Rio Tinto, BHP Billiton, Goldcorp, and Newmont Mining.

(Read More: The Scary Number for Gold Investors: $1,200)

Life Technologies, Thermo Fisher Scientific - The maker of medical testing equipment has agreed to a $76 per share takeover from Thermo Fisher Scientific. Life reportedly considered two other bids as well, one from Sigma-Aldrich and the other from a consortium of private equity firms.

Boeing - The jetmaker will have more than 1,000 of its 737 jets inspected to examine their tails for possibly faulty parts. The Federal Aviation Administration said the problem could potentially cause pilots to lose control of an aircraft.

General Motors, Ford Motor - The rival automakers will work together to jointly design new fuel efficient transmissions, a move that could potentially save them millions of dollars.

Plantronics - CEO Ken Kannappan will take a four-month medical leave to receive treatment for cancer. Chief Financial Officer Pamela Strayer will be acting CEO for the headset manufacturer during Kannappan's leave.

Microsoft - Microsoft is said to be working on a touch-enabled watch device, according to The Wall Street Journal. Microsoft would join Apple and others in working on such a device.

Google - Google has made a settlement proposal to European Union regulators, according to Dow Jones. The proposal involves changes to Google's search engine to answer concerns that it operates in an anti-competitive manner.

Elan - Royalty pharma has raised its bid for the Irish drugmaker to $12 a share from $11 a share.

Freeport-McMoRan - Citi has downgraded the miner's stock to "sell" from "neutral," given falling copper prices and what it terms "minimal" free cash flow over the next two years.

Saks - JPMorgan Chase has downgraded the retailer's shares to "neutral" from "overweight," saying the higher income tax burden for the typical Saks higher income customer may crimp sales.

(Read More: See CNBC's Market Insider Blog)

—By CNBC's Peter Schacknow

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