Bluefin Capital Management LLC briefly popped up as the second-largest investor in United States Steel Corp. this week, the latest twist in an eventful year or so for the American steelmaker.

Kestenbaum, currently the CEO of private equity firm Bedrock Industries Group, is known as a turnaround artist. At one time ...

An asset manager is seeking to quash Nippon Steel's takeover of U.S. Steel and oust the leadership of the U.S. steelmaker after taking a stake in the company.

An asset manager is seeking to quash Nippon Steel's takeover of U.S. Steel and oust the leadership of the U.S. steelmaker ...