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

Herbalife—The nutrition and weight loss company projected fourth-quarter profit above analysts' expectations and announced a $1 billion debt offering.

Whole Foods Market—Piper Jaffray upgraded to overweight from neutral shares of the natural supermarket chain.

Sysco—The food distributor reported fiscal second-quarter earnings of 36 cents a share, and adjusted earnings of 40 cents a share on sales of $11.2 billion.

Goldman Sachs—Guggenheim upgraded its shares from neutral to buy, citing strong investment banking activities and a bounce back in brokerage fees.

Charter Communications—Reuters cited people familiar with the matter in reporting the company is considering upping its bid for Time Warner Cable as early as in the next two weeks.

—By CNBC's Kate Gibson.

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