The big picture: The purchase adds to Stauber's Downtown portfolio, which includes the Gulf Tower, Koppers Building, Frick Building and 10 other properties. Rugby is also spearheading two key ...

Koppers Holdings Inc. (NYSE:KOP), might not be a large cap stock, but it saw significant share price movement during recent months on the NYSE, rising to highs of US$32.81 and falling to the lows ...

(RTTNews) - Koppers Holdings Inc. (KOP), a global chemical and materials company, On Thursday announced that its Board approved a $100 million share repurchase program. Shares of Koppers are ...