Packaging Corp of America
A maker of the corrugated shipping boxes and paper that move goods to stores and doorsteps, and one of North America's largest containerboard producers. Its packaging arm turns fiber into the brown boxes, displays, and specialty cartons used by thousands of customers, while a separate paper mill produces copy and specialty paper. The company was formed in 1959 through the merger of three older packaging firms, and its roots trace back to an 1867 mill in Quincy, Illinois.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.