SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934
(Amendment No. )
Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐
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|☐||Preliminary Proxy Statement|
|☐||Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))|
|☐||Definitive Proxy Statement|
|☒||Definitive Additional Materials|
|☐||Soliciting Material Pursuant to §240.14a -12|
ALLISON TRANSMISSION HOLDINGS, INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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|SEC 1913 (02-02)
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*** Exercise Your Right to Vote ***
Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to Be Held on May 9, 2018.
Before You Vote
How to Access the Proxy Materials
Proxy Materials Available to VIEW or RECEIVE:
1. Annual Report to Stockholders 2. Notice and Proxy Statement
How to View Online:
|Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com.|
How to Request and Receive a PAPER or E-MAIL Copy:
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Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 25, 2018 to facilitate timely delivery.
How To Vote
Please Choose One of the Following Voting Methods
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Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.