Packaging Corporation of America announced that it intends to increase the quarterly cash dividend on its common stock to an annual payout of $3.16 per share from $2.52 per share, a 25% increase. The first quarterly dividend of $0.79 per share will be paid on July 13, 2018 to shareholders of record as of June 15, 2018. Future declaration of quarterly dividends and the establishment of future record and payment dates are subject to the final determination of PCA’s Board of Directors.   “Consist...