X0306 4 2013-03-18 0 0001379895 DYNEGY INC. DYN 0001543686 Walden John Clinton 601 TRAVIS STREET SUITE 1400 HOUSTON TX 77002 0 1 0 0 VP and Chief Acct Officer Common Stock 2013-03-18 4 A 0 4519 0 A 6358 D Employee Stock Option (Right to Buy) 23.1 2013-03-18 4 A 0 7053 0 A 2023-03-18 Common Stock 7053 7053 D The grants of the restricted stock units were approved by a committee of the Issuer's Board of Directors on March 18, 2013. Restricted stock unit grant pursuant to Rule 16b-3(d). Each restricted stock unit represents a contingent right to receive one share of Dynegy Inc. common stock. The restricted stock units vest in three annual equal installments beginning on March 18, 2014. Amount includes 1,839 restricted stock units that vest in three annual equal installments beginning on October 31, 2013 and 4,519 restricted stock units that vest in three annual equal installments beginning on March 18, 2014. The grants of the stock options were approved by a committee of the Issuer's Board of Directors on March 18, 2013. Option grant pursuant to rule 16b-3(d). The option becomes exercisable in three annual equal installments beginning March 18, 2014. /s/ Heidi D. Lewis, Attorney-in-Fact 2013-03-20