X0306 4 2018-02-27 0 0001379895 DYNEGY INC. DYN 0001573115 Jones Henry D. 601 TRAVIS STREET SUITE 1400 HOUSTON TX 77002 0 1 0 0 EVP & Chief Commercial Officer Common Stock 98220 D Restricted Stock Units 2018-02-27 4 A 0 75154 12.33 A Common Stock 75154 97415 D Amount includes 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 16(b)-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