AON

SEC source: 0001209191-18-059724 · doc4.xml · nonDerivative · entry 1

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,323.247

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon vesting of restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon vesting of restricted share unit award.

SEC source: 0001209191-18-057939 · doc4.xml · nonDerivative · entry 1

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,796.247

F1 · kind: The transactions reported were effected pursuant to a trading plan meeting the requirements of SEC Rule 10b5-1 entered into on November 30, 2017.

SEC source: 0001209191-19-009512 · doc5.xml · nonDerivative · entry 1

NOTEBAERT RICHARD C · CIK 0001112731 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,272

F1 · balance_after: Includes 9,102 shares that were previously held in a grantor retained annuity trust.

SEC source: 0001209191-18-051890 · doc4.xml · nonDerivative · entry 1

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,796.247

F1 · kind: The transactions reported were effected pursuant to a trading plan meeting the requirements of SEC Rule 10b5-1 entered into on November 30, 2017.

SEC source: 0001209191-18-051285 · doc4.xml · derivative · entry 3

BRUNO JOHN G · CIK 0001283118 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,632

Underlying: Class A Ordinary Shares · 12,632 shares

Expires 2019-09-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The restricted stock 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.

F4 · derivative.exercise_date: A restricted share unit award was granted on September 12, 2014 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan as follows: 20% of the awards vest on each of the first through fifth anniversaries of the date of the grant.

F4 · derivative.expiration_date: A restricted share unit award was granted on September 12, 2014 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan as follows: 20% of the awards vest on each of the first through fifth anniversaries of the date of the grant.

SEC source: 0001209191-18-051285 · doc4.xml · nonDerivative · entry 2

BRUNO JOHN G · CIK 0001283118 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,125.65

F2 · kind: Class A Ordinary Shares withheld by the issuer for the payment of withholding taxes in connection with the vesting of a restricted share unit award.

SEC source: 0001209191-18-051285 · doc4.xml · nonDerivative · entry 1

BRUNO JOHN G · CIK 0001283118 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,347.65

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-050273 · doc4.xml · nonDerivative · entry 1

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,796.25

F1 · kind: The transactions reported were effected pursuant to a trading plan meeting the requirements of SEC Rule 10b5-1 entered into on November 30, 2017

F2 · balance_after: The total number of shares reported in Column 5 includes 63.37 shares acquired under the Aon employee stock purchase plan on June 29, 2018.

SEC source: 0001209191-18-049525 · doc4.xml · derivative · entry 3

Goland Anthony R · CIK 0001669783 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,214

Underlying: Class A Ordinary Shares · 1,108 shares

Expires 2020-09-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The restricted stock 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.

F4 · derivative.exercise_date: A restricted share unit award was granted on September 1, 2015 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan as follows: 20% of the awards vest on each of the first through fifth anniversaries of the date of the grant.

F4 · derivative.expiration_date: A restricted share unit award was granted on September 1, 2015 and vests in accordance with the terms of the Aon plc 2011 Incentive Compensation Plan as follows: 20% of the awards vest on each of the first through fifth anniversaries of the date of the grant.

SEC source: 0001209191-18-049525 · doc4.xml · nonDerivative · entry 2

Goland Anthony R · CIK 0001669783 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 886

F2 · kind: Class A Ordinary Shares withheld by the issuer for the payment of withholding taxes in connection with the vesting of a restricted share unit award.

SEC source: 0001209191-18-049525 · doc4.xml · nonDerivative · entry 1

Goland Anthony R · CIK 0001669783 · Chief Human Resources Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,369

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-048198 · doc4.xml · derivative · entry 3

Zern John · CIK 0001705528 · CEO, Aon Global Health

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,150

Underlying: Class A Ordinary Shares · 1,150 shares

Expires 2019-08-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: The restricted share unit award converts to Class A Ordinary Shares on a 1-for-1 basis. In accordance with UK law, the reporting person agreed to pay the issuer the nominal value of US$0.01 per share issued to the reporting person.

F4 · derivative.exercise_date: A restricted share unit award was granted on August 21, 2014 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

F4 · derivative.expiration_date: A restricted share unit award was granted on August 21, 2014 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

SEC source: 0001209191-18-048198 · doc4.xml · nonDerivative · entry 2

Zern John · CIK 0001705528 · CEO, Aon Global Health

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,699

F2 · kind: Class A ordinary Shares withheld by the issuer for the payment of taxes in connection with the vesting of a restricted share unit.

SEC source: 0001209191-18-048198 · doc4.xml · nonDerivative · entry 1

Zern John · CIK 0001705528 · CEO, Aon Global Health

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,209

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-048027 · doc4.xml · nonDerivative · entry 1

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 787

F1 · price: The price reported is a weighted average price. Shares were sold in a series of transactions within the same trading day at prices ranging from $143.57 to $143.58, inclusive. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer.

SEC source: 0001209191-19-011403 · doc4.xml · nonDerivative · entry 1

LIEB PETER M · CIK 0001263967 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,686.277

F1 · balance_after: Includes shares acquired under the Aon employee stock purchase plan on June 29, 2018.

SEC source: 0001209191-18-045874 · doc4.xml · nonDerivative · entry 1

CAMPBELL JEFFREY C · CIK 0001196907 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,084

F1 · price: The price reported is a weighted average price. Shares were purchased in a series of transactions within the same trading day at prices ranging from $143.67 to $143.95, inclusive. Full information regarding the number of shares purchased at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer.

SEC source: 0001209191-18-039474 · doc4.xml · nonDerivative · entry 1

WOO CAROLYN Y · CIK 0001205211 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,370

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039472 · doc4.xml · nonDerivative · entry 1

NOTEBAERT RICHARD C · CIK 0001112731 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,333

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039473 · doc4.xml · nonDerivative · entry 1

SANTONA GLORIA · CIK 0001179714 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,661

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039471 · doc4.xml · nonDerivative · entry 1

MYERS RICHARD B · CIK 0001356702 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,961

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039470 · doc4.xml · nonDerivative · entry 1

LOSH J MICHAEL · CIK 0001199190 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,449

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039469 · doc4.xml · nonDerivative · entry 1

FRANCIS CHERYL A · CIK 0001197386 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,757

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039468 · doc4.xml · nonDerivative · entry 2

Conti Fulvio · CIK 0001421899 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,977

F2 · kind: Class A Ordinary Shares withheld by issuer for the payment of withholding taxes in connection with the award.

SEC source: 0001209191-18-039468 · doc4.xml · nonDerivative · entry 1

Conti Fulvio · CIK 0001421899 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,074

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039467 · doc4.xml · nonDerivative · entry 1

CAMPBELL JEFFREY C · CIK 0001196907 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,534

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039466 · doc4.xml · nonDerivative · entry 2

Cai Jin-Yong · CIK 0001682796 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,386

F2 · kind: Class A Ordinary Shares withheld by issuer for the payment of withholding taxes in connection with the award.

SEC source: 0001209191-18-039466 · doc4.xml · nonDerivative · entry 1

Cai Jin-Yong · CIK 0001682796 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,498

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

SEC source: 0001209191-18-039465 · doc4.xml · nonDerivative · entry 1

KNIGHT LESTER B · CIK 0001023262 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,789

F1 · kind: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F1 · price: Class A Ordinary Shares granted annually to each non-employee director of Aon plc. In accordance with U.K. law, reporting person agreed to pay the issuer the nominal value of US $0.01 per share issued to the reporting person.

F2 · balance_after: Does not include 191,044 shares previously reported as indirectly owned in trust which shares were transferred on May 25, 2018 to a trust for which the reporting person is not a trustee.

SEC source: 0001209191-19-011395 · doc4.xml · nonDerivative · entry 1

Andersen Eric · CIK 0001697695 · Co-President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,320.49

F1 · kind: This line reports a 2018 sale that was inadvertently not timely reported. The transactions reported were effected pursuant to a trading plan meeting the requirements of SEC Rule 10b5-1 entered into on August 8, 2017.

F2 · price: The price reported is a weighted average price. Shares were sold in a series of transactions within the same trading day at prices ranging from $142.38 to $142.40, inclusive. Full information regarding the number of shares sold at each separate price is available upon request by the Commission staff, the issuer, or a security holder of the issuer.

SEC source: 0001209191-18-032644 · doc4.xml · derivative · entry 3

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 453 shares

Expires 2018-05-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: A restricted share unit award was granted on May 21, 2013 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

F4 · derivative.expiration_date: A restricted share unit award was granted on May 21, 2013 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

SEC source: 0001209191-18-032644 · doc4.xml · nonDerivative · entry 2

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,537

F2 · kind: Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.

SEC source: 0001209191-18-032644 · doc4.xml · nonDerivative · entry 1

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,670

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-032638 · doc4.xml · derivative · entry 3

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 755 shares

Expires 2018-05-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: A restricted share unit award was granted on May 21, 2013 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

F4 · derivative.expiration_date: A restricted share unit award was granted on May 21, 2013 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

SEC source: 0001209191-18-032638 · doc4.xml · nonDerivative · entry 2

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,732.87

F2 · kind: Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.

SEC source: 0001209191-18-032638 · doc4.xml · nonDerivative · entry 1

Grace Caroline · CIK 0001705516 · CEO, Global Retirement & Inves

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,067.87

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-032632 · doc4.xml · derivative · entry 3

Zern John · CIK 0001705528 · CEO, Aon Global Health

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 302 shares

Expires 2018-05-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: A restricted share unit award was granted on May 21, 2013 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

F4 · derivative.expiration_date: A restricted share unit award was granted on May 21, 2013 and vests in accordance with the terms of the Aon Stock Incentive Plan as follows: 20% of the award vests on each of the first through fifth anniversaries of the date of the grant.

SEC source: 0001209191-18-032632 · doc4.xml · nonDerivative · entry 2

Zern John · CIK 0001705528 · CEO, Aon Global Health

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,059

F2 · kind: Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.

SEC source: 0001209191-18-032632 · doc4.xml · nonDerivative · entry 1

Zern John · CIK 0001705528 · CEO, Aon Global Health

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,193

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-031375 · doc4.xml · nonDerivative · entry 1

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,217

SEC source: 0001209191-18-020579 · doc4.xml · derivative · entry 6

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 304

Underlying: Class A Ordinary Shares · 304 shares

Expires 2020-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F5 · derivative.exercise_date: 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.

F5 · derivative.underlying: 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.

SEC source: 0001209191-18-020579 · doc4.xml · derivative · entry 5

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182

Underlying: Class A Ordinary Shares · 182 shares

Expires 2019-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: 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.

F4 · derivative.underlying: 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.

SEC source: 0001209191-18-020579 · doc4.xml · nonDerivative · entry 4

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,217

F2 · kind: Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.

SEC source: 0001209191-18-020579 · doc4.xml · nonDerivative · entry 3

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,271

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-020579 · doc4.xml · nonDerivative · entry 2

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,090

F2 · kind: Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.

SEC source: 0001209191-18-020579 · doc4.xml · nonDerivative · entry 1

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,135

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

SEC source: 0001209191-18-022361 · doc4.xml · derivative · entry 1

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 489

Underlying: Class A Ordinary Shares · 489 shares

Expires 2021-03-15

F1 · derivative.exercise_price: 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.

F2 · derivative.exercise_date: 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 anniversaries of the date of grant.

F2 · derivative.expiration_date: 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 anniversaries of the date of grant.

SEC source: 0001209191-18-019735 · doc4.xml · derivative · entry 3

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Ordinary Shares · 154 shares

Expires 2018-03-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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.

F4 · derivative.exercise_date: A restricted share unit award was granted on March 13, 2015 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.

F4 · derivative.underlying: A restricted share unit award was granted on March 13, 2015 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.

SEC source: 0001209191-18-019735 · doc4.xml · nonDerivative · entry 2

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,984

F2 · kind: Class A Ordinary Shares withheld by the issuer for payment of withholding taxes in connection with the vesting of the award.

SEC source: 0001209191-18-019735 · doc4.xml · nonDerivative · entry 1

Neller Michael · CIK 0001732938 · Principal Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,030

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.

F1 · price: Class A Ordinary Shares acquired upon the vesting of a restricted share unit award.