Kraft still hungry for Unilever after rejected offer

Kraft Heinz is attempting to buy Unilever in a $143 billion deal that would join the U.S. maker of cheeses and lunch meats with the European producer of mayo, teas and seasonings in a global powerhouse.

Unilever rejected the approach and called the price too low, while Kraft Heinz says it's still interested in a deal. The shares of both companies surged to new highs as investors saw prospects for cost cutting.

Federal judge swats Aetna-Humana insurer combo

A federal judge has rejected health insurer Aetna's bid to buy rival Humana on grounds that the deal would hurt competition in hundreds of Medicare Advantage markets, ultimately affecting the price consumers pay for coverage.

U.S. District Judge John Bates said in an opinion filed Monday that federal regulation would probably be "insufficient to prevent the merged firm from raising prices or reducing benefits," and neither new competitors nor an Aetna plan to sell some of the combined company's business to another insurer, Molina Healthcare Inc., would be enough to ease competitive concerns.

Twitter parts with 4 key execs in latest sign of turmoil

Four of Twitter's key executives are leaving the company in an exodus that has escalated the uncertainty facing the messaging service as it struggles to broaden its audience and lure back disillusioned investors.

Twitter CEO Jack Dorsey announced the management shake-up late Sunday after technology news site Re/Code reported the changes earlier in the day.

Dorsey described the departures as voluntary, a characterization that three of the four exiting executives echoed in their own posts.