Alkermes plc. Bonus & Incentive Agreements

Form of Incentive Stock Option Award Certificate for Reporting Officers under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on February 16, 2023)

Form of Non-Qualified Stock Option Award Certificate for Reporting Officers under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on February 16, 2023)

Form of Restricted Stock Unit (Time-Vesting) Award Certificate for Reporting Officers under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on February 16, 2023)

Form of Restricted Stock Unit (Performance-Vesting) Award Certificate for Reporting Officers under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on February 16, 2023)

Form of Non-Employee Director New Director Grant Non-Qualified Stock Option Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on July 27, 2022)

Form of Non-Employee Director New Director Grant Restricted Stock Unit (Time-Vesting) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on July 27, 2022)

Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on July 7, 2022)

ALKERMESplc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on February 16, 2022)

Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on June 14, 2021)

Form of Non-Qualified Stock Option (Non-Employee Director) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on July 29, 2020)

Form of Restricted Stock Unit (Time-Vesting) (Non-Employee Director) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on July 29, 2020)

Form of Restricted Stock Unit Award Certificate (Performance-Vesting) under the Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on July 29, 2020)

Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on May 20, 2020)

Alkermes plc 2018 Stock Option and Incentive Plan, as amended (Filed With SEC on May 22, 2019)

Form of Incentive Stock Option Award Certificate under the Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on October 23, 2018)

Form of Non-Qualified Stock Option (Employee) Award Certificate under the Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on October 23, 2018)

Form of Restricted Stock Unit (Time-Vesting) Award Certificate under the Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on October 23, 2018)

Form of Restricted Stock Unit (Performance-Vesting) Award Certificate under the Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on October 23, 2018)

Form of Non-Qualified Stock Option (Non-Employee Director) Award Certificate under the Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on October 23, 2018)

Form of Incentive Stock Option Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan (Filed With SEC on October 23, 2018)

Form of Non-Qualified Stock Option (Employee) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan (Filed With SEC on October 23, 2018)

Form of Restricted Stock Unit (Time-Vesting) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan (Filed With SEC on October 23, 2018)

Form of Restricted Stock Unit (Performance-Vesting) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan (Filed With SEC on October 23, 2018)

Form of Non-Qualified Stock Option (Non-Employee Director) Award Certificate under the Alkermes plc 2018 Stock Option and Incentive Plan (Filed With SEC on October 23, 2018)

Alkermes plc 2018 Stock Option and Incentive Plan (Filed With SEC on May 23, 2018)

Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on May 24, 2017)

Alkermes plc Amended and Restated 2008 Stock Option and Incentive Plan, as amended (Filed With SEC on April 27, 2017)

Alkermes plc 2011 Stock Option and Incentive Plan, as amended (Filed With SEC on April 27, 2017)

ALKERMES plc 2011 Stock Option and Incentive Plan (Filed With SEC on May 26, 2016)

ALKERMES plc Amended and Restated 2008 Stock Option and Incentive Plan (Filed With SEC on April 28, 2016)

ALKERMES plc 2011 Stock Option and Incentive Plan (Filed With SEC on April 28, 2016)

ALKERMES plc Amended and Restated 2008 Stock Option and Incentive Plan (Filed With SEC on April 30, 2015)

ALKERMES plc 2011 Stock Option and Incentive Plan (Filed With SEC on April 30, 2015)

Alkermes plc Affiliated Company Fiscal Year 2015 Reporting Officer Performance Pay Plan (the Plan) (Filed With SEC on December 5, 2014)

ALKERMES plc 2011 Stock Option and Incentive Plan (Filed With SEC on May 28, 2014)

Alkermes plc Affiliated Company Fiscal Year 2014 Reporting Officer Performance Pay Plan (the Plan) (Filed With SEC on December 9, 2013)

ALKERMES plc 2011 Stock Option and Incentive Plan (Filed With SEC on August 1, 2013)

Amended and Restated Fiscal Year December 2013 Alkermes plc Affiliated Company Reporting Officer Performance Pay Plan (the Plan) (Filed With SEC on May 23, 2013)

Fiscal 2014 Alkermes plc Affiliated Company Reporting Officer Performance Pay Plan (the Plan) (Filed With SEC on April 1, 2013)

Fiscal 2013 Alkermes plc Affiliated Company Reporting Officer Performance Pay Plan (the Plan) (Filed With SEC on November 1, 2012)