Berlin Packaging announced the appointment of Michael Grebe as executive chairman. John W. Zimmerman will serve as interim CEO until the Board appoints a permanent successor to Andrew T. Berlin, who has stepped down from his roles as chairman, director, and CEO. These changes are effective immediately. “The company remains on a solid upward trajectory and is poised to deliver on its financial objectives for the year,” said Grebe. “John knows the company well, having served as its interim CFO i...