Activist investor Starboard Value has its eye on making some serious changes to construction company Knife River and the stock market has approved of the first effort. Knife River stock rose 4.3% to $53.66 in premarket trading on Thursday after Starboard Value said it has taken a significant stake in the company, and that if shareholder returns don’t improve the board should consider a sale. Shares of Knife River declined 7.9% on Wednesday and have fallen 27% this year.
