X0306 4 2013-02-07 0001411207 Allison Transmission Holdings Inc ALSN 0001543492 Graziosi David S. ONE ALLISON WAY INDIANAPOLIS IN 46222 0 1 0 0 Exec VP, CFO and Treasurer Common Stock 2013-02-07 4 M 0 2300 8.44 A 53145 D Common Stock 2013-02-07 4 S 0 2300 23.02 D 50845 D Common Stock 2013-02-08 4 M 0 17300 8.44 A 68145 D Common Stock 2013-02-08 4 S 0 17300 23.2282 D 50845 D Employee Stock Option (right to buy) 8.44 2013-02-07 4 M 0 2300 0 D 2017-11-13 Common Stock 2300 71556 D Employee Stock Option (right to buy) 8.44 2013-02-08 4 M 0 17300 0 D 2017-11-13 Common Stock 17300 54256 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 16, 2012. The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $23.0000 to 23.1100. The reporting person undertakes to provide the Company, any security holder of the Company or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported is a weighted average price. These shares were sold in multiple transactions at per share prices ranging from $23.0000 to 23.3950. The reporting person undertakes to provide the Company, any security holder of the Company or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The option vested in five equal annual installments beginning on November 13, 2008. /s/ Eric C. Scroggins, attorney-in-fact 2013-02-11