Christina Cheddar Berk is assistant managing editor of Enterprise coverage at CNBC Digital. Before joining CNBC, she was a special writer at Dow Jones Newswires and a guest columnist for the Wall Street Journal. Cheddar Berk was part of a team of reporters who received a Society of American Business Editors and Writers award for breaking news coverage. She also has worked as an associate editor for "The World Almanac" and an assistant editor for "Funk & Wagnalls New Encyclopedia."
Valeant Pharmaceuticals shares fell more than 9 percent in pre-market trading after The Wall Street Journal reported the company is under federal investigation.
In a bid to juice its online business, Wal-Mart agreed Monday to acquire Jet.com in a deal valued at about $3 billion.
The Justice Department files suits to block two megadeals in the health insurance industry, saying they would harm competition across the country.
Chipotle is still struggling to woo back customers months after foodborne illnesses were linked to the restaurant chain.
Hershey's board of directors unanimously rejected the offer from rival Mondelez.
Martha Stewart unveils a meal-kit delivery service that puts her in competition with start-ups Blue Apron, Plated and others.