Business

The week’s winners and losers

WINNERS

ELIZABETH WARREN

Freshman Mass. senator comes charging with proposal to split retail and institutional banking.

JEFF BEZOS

Amazon boss wins e-book price-fixing case against Apple and publishers.

BRETT YORMARK

Barclays Center CEO nets business operations of Islanders hockey team.

LOSERS

TOMMY BELESIS

Colorful broker and ‘Wall Street 2’ walkon files paperwork to shut his firm, John Thomas Financial.

WILLIAM LYNCH

Barnes & Noble CEO resigns in the wake of announcement that company was abandoning Nook tablet.

DANIEL BIRNBAUM

SodaStream CEO’s efforts to sell company are falling flat.