Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
RABAUT THOMAS W
  2. Issuer Name and Ticker or Trading Symbol
Allison Transmission Holdings Inc [ALSN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
ONE ALLISON WAY
3. Date of Earliest Transaction (Month/Day/Year)
05/10/2018
(Street)

INDIANAPOLIS, IN 46222
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock (1) 05/10/2018   A   446 A $ 0 (2) 35,992 D  
Common Stock (3) 05/10/2018   M   3,233 (4) A $ 0 39,225 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units (5) 05/10/2018   M     3,185   (6)   (6) Common Stock 3,185 $ 0 0 D  
Divident Equivalent Units (7) 05/10/2018   M     48   (8)   (8) Common Stock 48 $ 0 14 D  
Restricted Stock Units (9) (5) 05/10/2018   A   2,859     (10)   (10) Common Stock 2,859 $ 0 (11) 2,859 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RABAUT THOMAS W
ONE ALLISON WAY
INDIANAPOLIS, IN 46222
  X      

Signatures

 /s/ Eric C. Scroggins, attorney-in-fact   05/14/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These shares represent a quarterly payment of the reporting person's annual retainer under the Allison Transmission Holdings, Inc. (the "Company") Third Amended and Restated Non-Employee Director Compensation Policy ("Policy"). The annual retainer is paid quarterly in arrears in cash or common stock at the reporting person's discretion.
(2) The number of shares of common stock received was calculated based on $41.96, which was the closing price of the Company's common stock on the date of grant.
(3) Settlement of restricted stock units ("RSUs") and related dividend equivalents.
(4) Includes 48 dividend equivalents.
(5) Each RSU represents a contingent right to receive one share of the Company's common stock.
(6) On May 12, 2017, the reporting person was granted 3,185 RSUs that vested on May 10, 2018.
(7) Each dividend equivalent right is the economic equivalent of one share of the Company's common stock.
(8) The dividend equivalent rights accrued on previously awarded RSUs and vested on May 10, 2018.
(9) The RSUs represent the reporting person's annual equity award under the Policy.
(10) The RSUs vest on the date of the next annual meeting of the stockholders of the Company. Unvested RSUs earn dividend equivalents when dividends are declared on the Company's common stock.
(11) The number of RSUs received was calculated based on $41.96, which was the closing price of the Company's common stock on the date of grant.

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