Cantel Medical gains following an agreement to be bought by Steris for $84.66 a share in a deal that combines two of the larger providers of medical sterilization products.

UnitedHealth Group agrees to buy Change Healthcare in a deal that values the health technology company at more than $13 billion.

Magellan Health, FLIR Systems, Brookfield Property Partners, ViewRay and Pandion Therapeutics are five top stock gainers for Monday.

Stocks finish lower on the first day of the new trading year. Investors are concerned about pandemic restrictions and the outcome of Tuesday's Georgia runoff.

Stocks moving in premarket trading Monday include Tesla, Roku, Magellan Health and FLIR Systems.

Centene agrees to buy Magellan Health for $95 a share in a deal with an enterprise value of $2.2 billion.

Managed-care provider Magellan Health is talks for a possible sale to private-equity firm Centerbridge Partners, The Wall Street Journal reports.

Hedge fund Starboard Value reportedly is raising pressure on Magellan Health to sell itself.

Senator John McCain returned to the Capitol and VP Mike Pence broke the tie vote.

The billionaire and crypto investor was in business with Voyager Digital which went bankrupt early July.

The builder confidence index breached the break-even measure of 50 in August for the first time since May 2020.

China is a crucial country for Tesla for its domination of the market of electric vehicles.