X0306 4 2013-10-29 0 0001379895 DYNEGY INC. DYN 0001428577 Freeland Clint 601 TRAVIS 14TH FLOOR HOUSTON TX 77002 0 1 0 0 Exec. VP and CFO Common Stock 2013-10-29 4 F 0 2469 19.58 D 49068 D These restricted stock units were withheld by the issuer to pay the taxes applicable to the vesting of 9,025 units of restricted stock on October 29, 2013. Reflects the closing stock price on October 29, 2013. Amount includes 18,048 restricted stock units that vest in two annual equal installments beginning on October 29, 2014 and 21,646 restricted stock units that vest in three annual equal installments beginning on March 18, 2014. /s/ Heidi D. Lewis, Attorney-in-Fact 2013-10-31