X0306 4 2018-02-27 0 0001379895 DYNEGY INC. DYN 0001374018 Burke Carolyn Jeanne 601 TRAVIS 14TH FLOOR HOUSTON TX 77002 0 1 0 0 EVP Common Stock 98120 D Restricted Stock Units 2018-02-27 4 A 0 84879 12.33 A Common Stock 84879 104464 D Amount includes 3,854 restricted stock units that vest on March 3, 2018 and 39,277 restricted stock units that vest in three annual equal installments beginning on March 1, 2018. The grants of the restricted stock units were approved by a committee of the Issuer's Board of Directors on February 27, 2018. 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 or the cash equivalent of one share of common stock. Subject to certain exceptions as described in the award agreements, the restricted stock units vest in three annual equal installments beginning on February 27, 2019. The settlement of such units are anticipated to be settled in cash. /s/ Heidi D. Lewis, Attorney-in-Fact 2018-03-01