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 *
Neller Michael
   2. Issuer Name and Ticker or Trading Symbol
Aon plc [AON] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Principal Accounting Officer
(Last)
(First)
(Middle)
200 EAST RANDOLPH ST.		 3. Date of Earliest Transaction (Month/Day/Year)
03/15/2019
(Street)

CHICAGO, IL 		 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
Class A Ordinary Stock 03/15/2019   M(1)   152 A (1) 2,778 D  
Class A Ordinary Stock 03/15/2019   F(2)   45 D $ 170 2,733 D  
Class A Ordinary Stock 03/15/2019   M(1)   163 A (1) 2,896 D  
Class A Ordinary Stock 03/15/2019   F(2)   55 D $ 170 2,841 D  
Class A Ordinary Stock 03/15/2019   M(1)   182 A (1) 3,023 D  
Class A Ordinary Stock 03/15/2019   F(2)   81 D $ 170 2,942 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Share Unit (Right to Receive) (3) 03/15/2019   M     152   (4) 03/15/2020 Class A Ordinary Shares 152 $ 0 152 D  
Restrictive Share Unit (Right to Receive) (3) 03/15/2019   M     163   (5) 03/15/2021 Class A Ordinary Shares 163 $ 0 326 D  
Restricted Share Unit (Right to Receive) (3) 03/15/2019   M     182   (6) 03/15/2019 Class A Ordinary Shares 182 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Neller Michael
200 EAST RANDOLPH ST.
CHICAGO, IL 		       Principal Accounting Officer  

Signatures

 /s/ Molly Johnson- Molly Johnson pursuant to power of attorney from Michael Neller   03/19/2019
**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) Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.
(2) Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.
(3) The restricted share unit award converts to Class A Ordinary Shares on a 1-for-1 basis. In accordance with U.K. law, the reporting person agreed to pay the issuer the nominal value of US$0.01 per share issued to the reporting person.
(4) A restricted share unit award was granted on March 15, 2017 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third anniversary of the date of grant.
(5) A restricted share unit award was granted on March 15, 2018 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third anniversary of the date of grant.
(6) A restricted share unit award was granted on March 15, 2016 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan: 33 1/3% of the award vests on each of the first through third anniversary of the date of grant.

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