Horizon Therapeutics Public 8K Departure of Directors or Certain Officers | HZNP 6 May 19

Exhibit 99.2

HORIZON THERAPEUTICS PUBLIC LIMITED COMPANY

2014 NON-EMPLOYEE EQUITY PLAN

1. GENERAL.

(a)Eligible Award Recipients. The persons eligible to receive Awards areNon-employee Directors and Consultants. This Plan is intended as the successor to the Horizon Pharma, Inc. 2011 Equity Incentive Plan with respect to grants toNon-employee Directors and Consultants.

(b)Available Awards. The Plan provides for the grant of the following Awards: (i) Nonstatutory Stock Options, (ii) Stock Appreciation Rights (iii) Restricted Stock Awards, (iv) Restricted Stock Unit Awards, and (v) Other Stock Awards.

(c)Purpose. The Company, by means of the Plan, seeks to secure and retain the services of the group of persons eligible to receive Awards as set forth in Section 1(a), to provide incentives for such persons to exert maximum efforts for the success of the Company and any Affiliate and to provide a means by which such eligible recipients may be given an opportunity to benefit from increases in value of the Ordinary Shares through the granting of Awards.

2. ADMINISTRATION.

(a) Administration by Board. The Board shall administer the Plan unless and until the Board delegates administration of the Plan to a Committee or Committees, as provided in Section 2(c).

(b) Powers of Board. The Board shall have the power, subject to, and within the limitations of, the express provisions of the Plan:

(i)To determine from time to time (A) which of the persons eligible under the Plan shall be granted Awards; (B) when and how each Award shall be granted; (C) what type or combination of types of Award shall be granted; (D) the provisions of each Award granted (which need not be identical), including the time or times when a person shall be permitted to receive cash or Ordinary Shares pursuant to a Stock Award; (E) the number of Ordinary Shares with respect to which a Stock Award shall be granted to each such person; and (F) the Fair Market Value applicable to a Stock Award.

(ii)To construe and interpret the Plan and Awards granted under it, and to establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan or in any Stock Award Agreement, in a manner and to the extent it shall deem necessary or expedient to make the Plan or Award fully effective.

(iii)To settle all controversies regarding the Plan and Awards granted under it.

(iv)To accelerate the time at which an Award may first be exercised or the time during which an Award or any part thereof will vest in accordance with the Plan, notwithstanding the provisions in the Award stating the time at which it may first be exercised or the time during which it will vest.

(v)To suspend or terminate the Plan at any time. Suspension or termination of the Plan shall not impair rights and obligations under any Award granted while the Plan is in effect except with the written consent of the affected Participant.

(vi)To amend the Plan in any respect the Board deems necessary or advisable. However, except as provided in Section 9(a) relating to Capitalization Adjustments, to the extent required by applicable law or listing requirements, shareholder approval shall be required for any amendment of the Plan that either (A) materially increases the number of Ordinary Shares available for issuance under the Plan, (B) materially expands the class of individuals eligible to receive Awards under the Plan, (C) materially increases the benefits accruing to Participants under the Plan or materially reduces the price at which Ordinary Shares may be issued or purchased under the Plan, (D) materially extends the term of the Plan, or (E) expands the types of Awards available for issuance under the Plan. Except as provided above, rights under any Award granted before amendment of the Plan shall not be impaired by any amendment of the Plan unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing.

(vii)To submit any amendment to the Plan for shareholder approval, including, but not limited to, amendments to the Plan intended to satisfy the requirements of Rule16b-3.

(viii)To approve forms of Award Agreements for use under the Plan and to amend the terms of any one or more Awards, including, but not limited to, amendments to provide terms more favorable to the Participant than previously provided in the Award Agreement, subject to any specified limits in the Plan that are not subject to Board discretion;provided however, a Participant’s rights under any Award shall not be impaired by any such amendment unless (A) the Company requests the consent of the affected Participant, and (B) such Participant consents in writing. Notwithstanding the foregoing, subject to the limitations of applicable law, if any, the Board may amend the terms of any one or more Awards without the affected Participant’s consent if necessary to bring the Award into compliance with Section 409A of the Code.

(ix)Generally, to exercise such powers and to perform such acts as the Board deems necessary or expedient to promote the best interests of the Company and any Affiliates and that are not in conflict with the provisions of the Plan or Awards.

(x)To adopt such procedures andsub-plans as are necessary or appropriate to permit participation in the Plan byNon-employee Directors or Consultants who are foreign nationals or provide services outside the United States.

(c) Delegation to Committee.

(i)General. The Board may delegate some or all of the administration of the Plan to a Committee or Committees. If administration of the Plan is delegated to a Committee, the Committee shall have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to delegate to a subcommittee of the Committee any of the administrative powers the Committee is authorized to exercise (and references in this Plan to the Board shall thereafter be to the Committee or subcommittee), subject, however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. The Committee may, at any time, abolish the subcommittee and/or revest in the Committee any powers delegated to the subcommittee. The Board may retain the authority to concurrently administer the Plan with the Committee and may, at any time, revest in the Board some or all of the powers previously delegated.

(ii)Rule16b-3 Compliance. The Committee may consist solely of two or moreNon-Employee Directors, in accordance with Rule16b-3.

(d)Effect of Board’s Decision. All determinations, interpretations and constructions made by the Board in good faith shall not be subject to review by any person and shall be final, binding and conclusive on all persons.

(e) Cancellation andRe-Grant of Stock Awards. Neither the Board nor any Committee shall have the authority to: (i) reduce the exercise price of any outstanding Options or Stock Appreciation Rights under the Plan, or (ii) cancel any outstanding Options or Stock Appreciation Rights that have an exercise price or strike price greater than the current Fair Market Value of the Ordinary Shares in exchange for cash or other Stock Awards under the Plan, unless the stockholders of the Company have approved such an action within twelve (12) months prior to such an event, provided that the exercise price of any such outstanding Options or Stock Appreciation Rights under the Plan may not be reduced below the nominal value of an Ordinary Share.

3. SHARES SUBJECTTOTHE PLAN.

(a) Share Reserve.

(i)Subject to Section 9(a) relating to Capitalization Adjustments, the aggregate number of Ordinary Shares of the Company that may be issued pursuant to Stock Awards after the Effective Date shall not exceed Two Million Two Hundred Fifty Thousand (2,250,000) Ordinary Shares. For clarity, the limitation in this Section 3(a)(i) is a limitation on the number of Ordinary Shares that may be issued pursuant to the Plan. Accordingly, this Section 3(a)(i) does not limit the granting of Stock Awards except as provided in Section 7(a). Shares may be issued in connection with a merger or acquisition as permitted by, as applicable, NASDAQ Marketplace Rule 4350(i)(1)(A)(iii), NYSE Listed Company Manual Section 303A.08, AMEX Company Guide Section 711 or other applicable stock exchange rules, and such issuance shall not reduce the number of Ordinary Shares available for issuance under the Plan. Furthermore, if a Stock Award or any portion thereof (i) expires or otherwise terminates without all of the Ordinary Shares covered by such Stock Award having been issued or (ii) is settled in cash (i.e., the Participant receives cash rather than Ordinary Shares), such expiration, termination or settlement shall not reduce (or otherwise offset) the number of Ordinary Shares that may be available for issuance under the Plan.

(ii)Subject to subsection 3(b), the number of Ordinary Shares available for issuance under the Plan shall be reduced by: (i) one (1) Ordinary Share for each Ordinary Share issued pursuant to (A) an Option granted under Section 5, or (B) a Stock Appreciation Right granted under Section 5 with respect to which the strike price is at least one hundred percent (100%) of the Fair Market Value of the underlying Ordinary Shares on the date of grant; (ii) 1.29 Ordinary Shares for each Ordinary Share issued pursuant to a Restricted Stock Award, Restricted Stock Unit Award, or Other Stock Award granted prior to May 2, 2019, and (iii) 1.40 Ordinary Shares for each Ordinary Share issued pursuant to a Restricted Stock Award, Restricted Stock Unit Award, or Other Stock Award granted on or after May 2, 2019.

(b) Reversion of Shares to the Share Reserve.

(i)Shares Available For Subsequent Issuance.If any Stock Award is forfeited back to the Company or Ordinary Shares are redeemed or repurchased by the Company or any Affiliate (in accordance with applicable Irish law) because of the failure to meet a contingency or condition required to vest such Ordinary Shares, then the Ordinary Shares that are forfeited, redeemed or repurchased shall revert to and again become available for issuance under the Plan. Notwithstanding the provisions of this Section 3(b)(i), to the extent there is issued an Ordinary Share pursuant to a Stock Award under the Plan (other than an Option or Stock Appreciation Right) and such Ordinary Share becomes available for issuance under the Plan pursuant to Section 3(a)(i) or this Section 3(b)(i), then the number of Ordinary Shares available for issuance under the Plan shall increase by 1.29 shares for each such Ordinary Share returning to the Plan prior to May 2, 2019 and 1.40 shares for each such Ordinary Share returning to the Plan on or after May 2, 2019.

(ii) Shares Not Available For Subsequent Issuance.If any Ordinary Shares subject to a Stock Award are not delivered to a Participant because the Stock Award is exercised through a reduction of Ordinary Shares subject to the Stock Award (i.e., “net exercised”), the number of Ordinary Shares that are not delivered to the Participant shall not remain available for issuance under the Plan. Also, any Ordinary Shares withheld by the Company pursuant to Section 8(f) or withheld or tendered as consideration for the exercise of an Option or purchase of any other Stock Award shall not again become available for issuance under the Plan.

(c) Source of Shares. The Ordinary Shares issuable under the Plan shall be authorized but unissued or reacquired Ordinary Shares, including Ordinary Shares redeemed or repurchased by the Company or any Affiliate on the open market or otherwise, in accordance with applicable Irish Law.

4. ELIGIBILITY.

Stock Awards may be granted toNon-employee Directors and Consultants as determined by the Board.

5. PROVISIONSRELATINGTO OPTIONSAND STOCK APPRECIATION RIGHTS.

Each Option or SAR shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. All Options shall be Nonstatutory Stock Options at the time of grant. The provisions of separate Options or SARs need not be identical;provided, however, that each Option Agreement or Stock Appreciation Right Agreement shall conform to (through incorporation of provisions hereof by reference in the applicable Award Agreement or otherwise) the substance of each of the following provisions:

(a) Term. No Option or SAR shall be exercisable after the expiration of ten (10) years from the date of its grant or such shorter period specified in the Award Agreement.

(b) Exercise Price. The exercise price (or strike price) of each Option or SAR shall be not less than one hundred percent (100%) of the Fair Market Value of the Ordinary Shares subject to the Option or SAR on the date the Option or SAR is granted. Notwithstanding the foregoing, an Option or SAR may be granted with an exercise price (or strike price) lower than one hundred percent (100%) of the Fair Market Value of the Ordinary Shares subject to the Option or SAR if such Option or SAR is granted pursuant to an assumption of or substitution for another option or stock appreciation right pursuant to a Corporate Transaction and in a manner consistent with the provisions of Sections 409A and, if applicable, 424(a) of the Code, provided that in all cases the exercise price is not less than the nominal value of an Ordinary Share. Each SAR will be denominated in Ordinary Shares equivalents.

(c) Purchase Price for Options. The purchase price of Ordinary Shares acquired pursuant to the exercise of an Option shall be paid, to the extent permitted by applicable law and as determined by the Board in its sole discretion, by any combination of the methods of payment set forth below;provided, however,that where Ordinary Shares are issued pursuant to the exercise of an Option, the nominal value of each newly issued Ordinary Share is fully paid up. The Board shall have the authority to grant Options that do not permit all of the following methods of payment (or otherwise restrict the ability to use certain methods) and to grant Options that require the consent of the Company to utilize a particular method of payment. The permitted methods of payment are as follows:

(i)by cash, check, bank draft or money order payable to the Company;

(ii)pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board that, prior to the issuance of Ordinary Shares subject to the Option, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to the Company from the sales proceeds;

(iii)by a “net exercise” arrangement pursuant to which the Company will reduce the number of Ordinary Shares issuable upon exercise by the largest whole number of Ordinary Shares with a Fair Market Value that does not exceed the aggregate exercise price;provided, however, that:

(1)the Company shall accept a cash or other payment from the Participant to the extent of any remaining balance of the aggregate exercise price not satisfied by such reduction in the number of whole Ordinary Shares to be issued;

(2)irrespective of whether a “net exercise” arrangement is used, the nominal value of each newly issued Ordinary Shares will be fully paid up in cash; and

(3)Ordinary Shares will no longer be subject to an Option and will not be exercisable thereafter to the extent that (A) Ordinary Shares issuable upon exercise are reduced to pay the exercise price pursuant to the “net exercise,” (B) Ordinary Shares are delivered to the Participant as a result of such exercise, and (C) Ordinary Shares are withheld to satisfy tax withholding obligations; or

(iv)in any other form of legal consideration that may be acceptable to the Board and permissible under applicable law.

(d)Exercise and Payment of a SAR. To exercise any outstanding Stock Appreciation Right, the Participant must provide written notice of exercise to the Company in compliance with the provisions of the Stock Appreciation Right Agreement evidencing such Stock Appreciation Right. The appreciation distribution payable on the exercise of a Stock Appreciation Right will be not greater than an amount equal to the excess of (A) the aggregate Fair Market Value (on the date of the exercise of the Stock Appreciation Right) of a number of Ordinary Shares equal to the number of Ordinary Shares equivalents in which the Participant is vested under such Stock Appreciation Right, and with respect to which the Participant is exercising the Stock Appreciation Right on such date, over (B) the strike price that will be determined by the Board at the time of grant of the Stock Appreciation Right. The appreciation distribution in respect to a Stock Appreciation Right may be paid in Ordinary Shares, in cash, in any combination of the two or in any other form of consideration, as determined by the Board and contained in the Stock Appreciation Right Agreement evidencing such Stock Appreciation Right,provided, however, that where Ordinary Shares are issued pursuant to a Stock Appreciation Right, the nominal value of each newly issued Ordinary Share is fully paid up.

(e) Transferability of Options and SARs. The Board may, in its sole discretion, impose such limitations on the transferability of Options and SARs as the Board shall determine. In the absence of such a determination by the Board to the contrary, the following restrictions on the transferability of Options and SARs shall apply:

(i) Restrictions on Transfer. An Option or SAR shall not be transferable except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Participant only by the Participant;provided, however, that the Board may, in its sole discretion, permit transfer of the Option or SAR in a manner that is not prohibited by applicable tax and securities laws upon the Participant’s request. Except as explicitly provided herein, neither an Option nor a SAR may be transferred for consideration.

(ii) Domestic Relations Orders. Notwithstanding the foregoing, an Option or SAR may be transferred pursuant to a domestic relations order.

(iii) Beneficiary Designation. Notwithstanding the foregoing, the Participant may, by delivering written notice to the Company, in a form provided by or otherwise satisfactory to the Company and any broker designated by the Company to effect Option exercises, designate a third party who, in the event of the death of the Participant, shall thereafter be entitled to exercise the Option or SAR and receive the Ordinary Shares or other consideration resulting from such exercise. In the absence of such a designation, the executor or administrator of the Participant’s estate shall be entitled to exercise the Option or SAR and receive the Ordinary Shares or other consideration resulting from such exercise.

(f) Vesting Generally. The total number of Ordinary Shares subject to an Option or SAR may vest and therefore become exercisable in periodic installments that may or may not be equal. The Option or SAR may be subject to such other terms and conditions on the time or times when it may or may not be exercised as the Board may deem appropriate. The vesting provisions of individual Options or SARs may vary. The provisions of this Section 5(f) are subject to any Option or SAR provisions governing the minimum number of Ordinary Shares as to which an Option or SAR may be exercised.

(g) Termination of Continuous Service. Except as otherwise provided in the applicable Award Agreement or other agreement between the Participant and the Company or any Affiliate, if a Participant’s Continuous Service terminates (other than upon the Participant’s death or Disability), the Participant may exercise his or her Option or SAR (to the extent that the Participant was entitled to exercise such Award as of the date of termination of Continuous Service) but only within such period of time ending on the earlier of (i) the date three (3) months following the termination of the Participant’s Continuous Service (or such longer or shorter period specified in the applicable Award Agreement), or (ii) the expiration of the term of the Option or SAR as set forth in the Award Agreement. If, after termination of Continuous Service, the Participant does not exercise his or her Option or SAR within the time specified herein or in the Award Agreement (as applicable), the Option or SAR shall terminate.

(h)Extension of Termination Date.If the exercise of an Option or SAR following the termination of the Participant’s Continuous Service (other than upon the Participant’s death or Disability) would be prohibited at any time solely because the issuance of Ordinary Shares would violate the registration requirements under the Securities Act, then the Option or SAR shall terminate on the earlier of (i) the expiration of a total period of three (3) months (that need not be consecutive) after the termination of the Participant’s Continuous Service during which the exercise of the Option or SAR would not be in violation of such registration requirements, or (ii) the expiration of the term of the Option or SAR as set forth in the applicable Award Agreement. In addition, unless otherwise provided in a Participant’s Award Agreement, if the immediate sale of any Ordinary Shares received upon exercise of an Option or SAR following the termination of the Participant’s Continuous Service would violate the Company’s insider trading policy, then the Option or SAR shall terminate on the earlier of (i) the expiration of a period equal to the applicable post-termination exercise period after the termination of the Participant’s Continuous Service during which the sale of the Ordinary Shares received upon exercise of the Option or SAR would not be in violation of the Company’s insider trading policy, or (ii) the expiration of the term of the Option or SAR as set forth in the applicable Award Agreement.

(i)Disability of Participant. Except as otherwise provided in the applicable Award Agreement or other agreement between the Participant and the Company or any Affiliate, if a Participant’s Continuous Service terminates as a result of the Participant’s Disability, the Participant may exercise his or her Option or SAR (to the extent that the Participant was entitled to exercise such Option or SAR as of the date of termination of Continuous Service), but only within such period of time ending on the earlier of (i) the date twelve (12) months following such

termination of Continuous Service (or such longer or shorter period specified in the Award Agreement), or (ii) the expiration of the term of the Option or SAR as set forth in the Award Agreement. If, after termination of Continuous Service, the Participant does not exercise his or her Option or SAR within the time specified herein or in the Award Agreement (as applicable), the Option or SAR (as applicable) shall terminate.

(j)Death of Participant. Except as otherwise provided in the applicable Award Agreement or other agreement between the Participant and the Company or any Affilate, if (i) a Participant’s Continuous Service terminates as a result of the Participant’s death, or (ii) the Participant dies within the period (if any) specified in the Award Agreement for exercisability after the termination of the Participant’s Continuous Service (for a reason other than death), then the Option or SAR may be exercised (to the extent the Participant was entitled to exercise such Option or SAR as of the date of death) by the Participant’s estate, by a person who acquired the right to exercise the Option or SAR by bequest or inheritance or by a person designated to exercise the Option or SAR upon the Participant’s death, but only within the period ending on the earlier of (i) the date eighteen (18) months following the date of death (or such longer or shorter period specified in the Award Agreement), or (ii) the expiration of the term of such Option or SAR as set forth in the Award Agreement. If, after the Participant’s death, the Option or SAR is not exercised within the time specified herein or in the Award Agreement (as applicable), the Option or SAR shall terminate.

6. PROVISIONSOF STOCK AWARDSOTHERTHAN OPTIONSAND SARS.

(a) Restricted Stock Awards. Each Restricted Stock Award Agreement shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. To the extent consistent with the Company’s Bylaws, at the Board’s election, Ordinary Shares may be (i) held in book entry form subject to the Company’s instructions until any restrictions relating to the Restricted Stock Award lapse; or (ii) evidenced by a certificate, which certificate shall be held in such form and manner as determined by the Board. The terms and conditions of Restricted Stock Award Agreements may change from time to time, and the terms and conditions of separate Restricted Stock Award Agreements need not be identical;provided, however, that each Restricted Stock Award Agreement shall conform to (through incorporation of the provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions:

(i) Consideration. A Restricted Stock Award may be awarded in consideration for (A) cash, check, bank draft or money order payable to the Company, (B) services to the Company or an Affiliate or (C) any other form of legal consideration (including future services) that may be acceptable to the Board, in its sole discretion, and permissible under applicable law,provided however, that where Ordinary Shares are issued pursuant to a Restricted Stock Award the nominal value of each newly issued Ordinary Share is fully paid up.

(ii) Vesting.Ordinary Shares awarded under a Restricted Stock Award Agreement may be subject to forfeiture to the Company in accordance with a vesting schedule to be determined by the Board.

(iii) Termination of Participant’s Continuous Service. If a Participant’s Continuous Service terminates, the Company or any Affiliate may receive through a forfeiture condition or a repurchase right any or all of the Ordinary Shares held by the Participant that have not vested as of the date of termination of Continuous Service under the terms of the Restricted Stock Award Agreement.

(iv) Transferability. Rights to acquire Ordinary Shares under the Restricted Stock Award Agreement shall be transferable by the Participant only upon such terms and conditions as are set forth in the Restricted Stock Award Agreement, as the Board shall determine in its sole discretion, so long as Ordinary Shares awarded under the Restricted Stock Award Agreement remain subject to the terms of the Restricted Stock Award Agreement.

(v) Dividends.A Restricted Stock Award Agreement may provide that any dividends paid on Restricted Stock will be subject to the same vesting and forfeiture restrictions as apply to the Ordinary Shares subject to the Restricted Stock Award to which they relate.

(b) Restricted Stock Unit Awards.Each Restricted Stock Unit Award Agreement shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. The terms and conditions of Restricted Stock Unit Award Agreements may change from time to time, and the terms and conditions of separate Restricted Stock Unit Award Agreements need not be identical;provided, however,that each Restricted Stock Unit Award Agreement shall conform to (through incorporation of the provisions hereof by reference in the Agreement or otherwise) the substance of each of the following provisions:

(i)Consideration. At the time of grant of a Restricted Stock Unit Award, the Board will determine the consideration, if any, to be paid by the Participant upon delivery of each share of Ordinary Shares subject to the Restricted Stock Unit Award. The consideration to be paid (if any) by the Participant for each share of Ordinary Shares subject to a Restricted Stock Unit Award may be paid in any form of legal consideration that may be acceptable to the Board, in its sole discretion, and permissible under applicable law,provided, however, that where Ordinary Shares are issued pursuant to a Restricted Stock Unit Award, the nominal value of each newly issued Ordinary Share is fully paid up.

(ii)Vesting.At the time of the grant of a Restricted Stock Unit Award, the Board may impose such restrictions on or conditions to the vesting of the Restricted Stock Unit Award as it, in its sole discretion, deems appropriate.

(iii)Payment. A Restricted Stock Unit Award may be settled by the delivery of Ordinary Shares, their cash equivalent, any combination thereof or in any other form of consideration, as determined by the Board and contained in the Restricted Stock Unit Award Agreement.

(iv)Additional Restrictions.At the time of the grant of a Restricted Stock Unit Award, the Board, as it deems appropriate, may impose such restrictions or conditions that delay the delivery of the Ordinary Shares (or their cash equivalent) subject to a Restricted Stock Unit Award to a time after the vesting of such Restricted Stock Unit Award.

(v)Dividend Equivalents.Dividend equivalents may be credited in respect of Ordinary Shares covered by a Restricted Stock Unit Award, as determined by the Board and contained in the Restricted Stock Unit Award Agreement. At the sole discretion of the Board, such dividend equivalents may be converted into additional Ordinary Shares covered by the Restricted Stock Unit Award in such manner as determined by the Board. Any additional Ordinary Shares covered by the Restricted Stock Unit Award credited by reason of such dividend equivalents will be subject to all of the same terms and conditions of the underlying Restricted Stock Unit Award Agreement to which they relate.

(vi) Termination of Participant’s Continuous Service.Except as otherwise provided in the applicable Restricted Stock Unit Award Agreement, such portion of the Restricted Stock Unit Award that has not vested will be forfeited upon the Participant’s termination of Continuous Service.

(c)Other Stock Awards. Other forms of Stock Awards valued in whole or in part by reference to, or otherwise based on, Ordinary Shares, including the appreciation in value thereof (e.g., options or share rights with an exercise price or strike price less than 100% of the Fair Market Value of the Ordinary Shares at the time of grant) may be granted either alone or in addition to Stock Awards provided for under Section 5 and the preceding provisions of this Section 6. Subject to the provisions of the Plan, the Board shall have sole and complete authority to determine the persons to whom and the time or times at which such Other Stock Awards will be granted, the number of Ordinary Shares (or the cash equivalent thereof) to be granted pursuant to such Other Stock Awards and all other terms and conditions of such Other Stock Awards;provided, however, that where Ordinary Shares are issued pursuant to any Other Stock Award, the nominal value of each newly issued Ordinary Share is fully paid up.

7. COVENANTSOFTHE COMPANY.

(a) Availability of Shares. During the terms of the Stock Awards, the Company shall keep available at all times the authorized but unissued Ordinary Shares reasonably required to satisfy such Stock Awards.

(b) Securities Law Compliance. The Company shall seek to obtain from each regulatory commission or agency having jurisdiction over the Plan such authority as may be required to grant Stock Awards and to issue and sell Ordinary Shares upon exercise of the Stock Awards;provided, however, that this undertaking shall not require the Company to register under the Securities Act the Plan, any Stock Award or any Ordinary Shares issued or issuable pursuant to any such Stock Award. If, after reasonable efforts, the Company is unable to obtain from any such regulatory commission or agency the authority that counsel for the Company deems necessary for the lawful issuance and sale of Ordinary Shares under the Plan, the Company shall be relieved from any liability for failure to issue and sell Ordinary Shares upon exercise of such Stock Awards unless and until such authority is obtained. A Participant shall not be eligible for the grant of a Stock Award or the subsequent issuance of Ordinary Shares pursuant to the Stock Award if such grant or issuance would be in violation of any applicable securities law.

(c) No Obligation to Notify or Minimize Taxes.The Company and its Affiliates shall have no duty or obligation to any Participant to advise such holder as to the time or manner of exercising such Stock Award. Furthermore, the Company and its Affiliates shall have no duty or obligation to warn or otherwise advise such holder of a pending termination or expiration of a Stock Award or a possible period in which the Stock Award may not be exercised. The Company and its Affiliates have no duty or obligation to minimize the tax consequences of a Stock Award to the holder of such Stock Award.

8. MISCELLANEOUS.

(a) Use of Proceeds from Sales of Ordinary Shares.Proceeds from the sale of Ordinary Shares pursuant to Stock Awards shall constitute general funds of the Company.

(b) Corporate Action Constituting Grant of Stock Awards. Corporate action constituting a grant by the Company of a Stock Award to any Participant shall be deemed completed as of the date of such corporate action, unless otherwise determined by the Board, regardless of when the instrument, certificate, or letter evidencing the Stock Award is communicated to, or actually received or accepted by, the Participant.

(c) Shareholder Rights. No Participant shall be deemed to be the holder of, or to have any of the rights of a holder with respect to, any Ordinary Shares subject to such Stock Award unless and until (i) such Participant has satisfied all requirements for exercise of the Stock Award pursuant to its terms, if applicable, and (ii) the issuance of the Ordinary Shares subject to such Stock Award has been entered into the books and records of the Company.

(d) No Service Rights. Nothing in the Plan, any Stock Award Agreement or any other instrument executed thereunder or in connection with any Award granted pursuant thereto shall confer upon any Participant any right to continue to serve the Company or an Affiliate in the capacity in effect at the time the Stock Award was granted or shall affect the right of the Company or an Affiliate to terminate (i) the service of a Consultant pursuant to the terms of such Consultant’s agreement with the Company or an Affiliate, or (ii) the service of aNon-employee Director pursuant to the Bylaws of the Company or an Affiliate, and any applicable provisions of the corporate laws of the country or state in which the Company or the Affiliate is incorporated, as the case may be.

(e) Investment Assurances. The Company may require a Participant, as a condition of exercising or acquiring Ordinary Shares under any Stock Award, (i) to give written assurances satisfactory to the Company as to the Participant’s knowledge and experience in financial and business matters and/or to employ a purchaser representative reasonably satisfactory to the Company who is knowledgeable and experienced in financial and business matters and that he or she is capable of evaluating, alone or together with the purchaser representative, the merits and risks of exercising the Stock Award; and (ii) to give written assurances satisfactory to the Company stating that the Participant is acquiring Ordinary Shares subject to the Stock Award for the Participant’s own account and not with any present intention of selling or otherwise distributing the Ordinary Shares. The foregoing requirements, and any assurances given pursuant to such requirements, shall be inoperative if (A) the issuance of the shares upon the exercise or acquisition of Ordinary Shares under the Stock Award has been registered under a then currently effective registration statement under the Securities Act, or (B) as to any particular requirement, a determination is made by counsel for the Company that such requirement need

not be met in the circumstances under the then applicable securities laws. The Company may, upon advice of counsel to the Company, place legends on share certificates issued under the Plan as such counsel deems necessary or appropriate in order to comply with applicable securities laws, including, but not limited to, legends restricting the transfer of the Ordinary Shares.

(f)Withholding Obligations. Unless prohibited by the terms of a Stock Award Agreement, the Company or any Affiliate may, in its sole discretion, satisfy any federal, state, local or foreign tax withholding obligation, levies or any social security deduction obligation relating to an Award by any of the following means or by a combination of such means: (i) causing the Participant to tender a cash payment; (ii) withholding Ordinary Shares from the Ordinary Shares issued or otherwise issuable to the Participant in connection with the Award;provided, however,that no Ordinary Shares are withheld with a value exceeding the minimum amount of tax, levies and social security contribution required to be withheld by law or the practice of any revenue authority (or such lesser amount as may be necessary to avoid classification of the Stock Award as a liability for financial accounting purposes); (iii) withholding cash from an Award settled in cash; (iv) withholding payment from any amounts otherwise payable to the Participant; or (v) by such other method as may be set forth in the Award Agreement.

(g) Electronic Delivery. Any reference herein to a “written” agreement or document shall include any agreement or document delivered electronically or posted on the Company’s (or Affiliate’s, if applicable) intranet (or other shared electronic medium controlled by the Company or any Affiliate to which the Participant has access).

(h) Deferrals. To the extent permitted by applicable law, the Board, in its sole discretion, may determine that the delivery of Ordinary Shares or the payment of cash, upon the exercise, vesting or settlement of all or a portion of any Award may be deferred and may establish programs and procedures for deferral elections to be made by Participants. Deferrals by Participants will be made in accordance with Section 409A of the Code. Consistent with Section 409A of the Code, the Board may provide for distributions while a Participant is still providing services to the Company or an Affilate. The Board is authorized to make deferrals of Awards and determine when, and in what annual percentages, Participants may receive payments, including lump sum payments, following the Participant’s termination of Continuous Service, and implement such other terms and conditions consistent with the provisions of the Plan and in accordance with applicable law.

(i) Compliance with Section 409A.To the extent that the Board determines that any Award granted hereunder is subject to Section 409A of the Code, the Award Agreement evidencing such Award shall incorporate the terms and conditions necessary to avoid the consequences specified in Section 409A(a)(1) of the Code. To the extent applicable, the Plan and Award Agreements shall be interpreted in accordance with Section 409A of the Code. Notwithstanding anything to the contrary in this Plan (and unless the Award Agreement specifically provides otherwise), if the Ordinary Shares are publicly traded and a Participant holding an Award that constitutes “deferred compensation” under Section 409A of the Code is a “specified employee” for purposes of Section 409A of the Code, no distribution or payment of any amount shall be made upon a “separation from service” before a date that is six (6) months following the date of such Participant’s “separation from service” (as defined in Section 409A of the Code without regard to alternative definitions thereunder) or, if earlier, the date of the Participant’s death.

(j) Personal Data. It shall be a term and condition of every Award that a Participant agrees and consents to:

(i)the collection, use and processing of his Personal Data by the Company or any Subsidiary and the transfer of his Personal Data to any third party administrator of the Plan and any broker through whom Shares are to be sold on behalf of a Participant;

(ii)the Company, its Subsidiaries or any third party administrator of the Plan, transferring the Participant’s Personal Data amongst themselves for the purposes of implementing, administering and managing the Plan and the issue of Awards and the acquisition of Ordinary Shares pursuant to Awards;

(iii)the use of Personal Data by any such person for any such purposes; and

(iv)the transfer to and retention of Personal Data by third parties (including any situated outside the European Economic Area) for or in connection with such purposes.

9. ADJUSTMENTSUPON CHANGESIN ORDINARY SHARES; OTHER CORPORATE EVENTS.

(a) Capitalization Adjustments. In the event of a Capitalization Adjustment, the Board shall appropriately and proportionately adjust: (i) the class(es) and maximum number of securities subject to the Plan pursuant to Section 3(a)(i) and (ii) the class(es) and number of securities and price per Ordinary Share subject to outstanding Stock Awards. The Board shall make such adjustments, and its determination shall be final, binding and conclusive.

(b) Dissolution or Liquidation. Except as otherwise provided in a Stock Award Agreement, in the event of a dissolution or liquidation of the Company, all outstanding Stock Awards (other than Stock Awards consisting of vested and outstanding Ordinary Shares not subject to a forfeiture condition or the Company’s or any Affiliate’s right of repurchase) shall terminate immediately prior to the completion of such dissolution or liquidation, and any Ordinary Shares subject to the Company’s or any Affiliate’s repurchase rights or subject to a forfeiture condition may be repurchased or reacquired by the Company or an Affiliate notwithstanding the fact that the holder of such Stock Award is providing Continuous Service,provided, however, that the Board may, in its sole discretion, cause some or all Stock Awards to become fully vested, exercisable and/or no longer subject to repurchase or forfeiture (to the extent such Stock Awards have not previously expired or terminated) before the dissolution or liquidation is completed but contingent on its completion.

(c) Corporate Transaction. The following provisions shall apply to Stock Awards in the event of a Corporate Transaction unless otherwise provided in the instrument evidencing the Stock Award or any other written agreement between the Company or any Affiliate and the Participant or unless otherwise expressly provided by the Board at the time of grant of a Stock Award.

(i) Stock Awards May Be Assumed. In the event of a Corporate Transaction, any surviving corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume or continue any or all Stock Awards outstanding under the Plan or may substitute similar stock awards for Stock Awards outstanding under the Plan (including but not limited to, awards to acquire the same consideration paid to the shareholders of the Company pursuant to the Corporate Transaction), and any reacquisition or repurchase rights held by the Company in respect of Ordinary Shares issued pursuant to Stock Awards may be assigned by the Company to the successor of the Company (or the successor’s parent company, if any) in connection with such Corporate Transaction. A surviving corporation or acquiring corporation (or its parent) may choose to assume or continue only a portion of a Stock Award or substitute a similar stock award for only a portion of a Stock Award, or may choose to assume or continue the Stock Awards held by some, but not all Participants. The terms of any assumption, continuation or substitution shall be set by the Board.

(ii) Stock Awards Held by Current Participants. In the event of a Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Stock Awards or substitute similar stock awards for such outstanding Stock Awards, then with respect to Stock Awards that have not been assumed, continued or substituted and that are held by Participants whose Continuous Service has not terminated prior to the effective time of the Corporate Transaction (referred to as the “Current Participants”), the vesting of such Stock Awards (and, with respect to Options and Stock Appreciation Rights, the time when such Stock Awards may be exercised) shall be accelerated in full to a date prior to the effective time of such Corporate Transaction (contingent upon the effectiveness of the Corporate Transaction) as the Board shall determine (or, if the Board shall not determine such a date, to the date that is five (5) days prior to the effective time of the Corporate Transaction), and such Stock Awards shall terminate if not exercised (if applicable) at or prior to the effective time of the Corporate Transaction, and any reacquisition or repurchase rights held by the Company with respect to such Stock Awards shall lapse (contingent upon the effectiveness of the Corporate Transaction).

(iii) Stock Awards Held by Persons other than Current Participants. In the event of a Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Stock Awards or substitute similar stock awards for such outstanding Stock Awards, then with respect to Stock Awards that have not been assumed, continued or substituted and that are held by persons other than Current Participants, such Stock Awards shall terminate if not exercised (if applicable) prior to the effective time of the Corporate Transaction;provided, however, that any reacquisition or repurchase rights held by the Company with respect to such Stock Awards shall not terminate and may continue to be exercised notwithstanding the Corporate Transaction.

(iv) Payment for Stock Awards in Lieu of Exercise. Notwithstanding the foregoing, in the event a Stock Award will terminate if not exercised prior to the effective time of a Corporate Transaction, the Board may provide, in its sole discretion, that the holder of such Stock Award may not exercise such Stock Award but will receive a payment, in such form as may be determined by the Board, equal in value, at the effective time, to the excess, if any, of (A) the value of the property the Participant would have received upon the exercise of the Stock Award (including, at the discretion of the Board, any unvested portion of such Stock Award), over (B) any exercise price payable by such holder in connection with such exercise.

(d) Change in Control. A Stock Award may be subject to additional acceleration of vesting and exercisability upon or after a Change in Control as may be provided in the Stock Award Agreement for such Stock Award or as may be provided in any other written agreement between the Company or any Affiliate and the Participant, but in the absence of such provision, no such acceleration shall occur.

10. TERMINATIONOR SUSPENSIONOFTHE PLAN.

(a) Plan Term. The Board may suspend or terminate the Plan at any time. Unless terminated sooner by the Board, the Plan shall automatically terminate immediately after May 1, 2024. No Awards may be granted under the Plan while the Plan is suspended or after it is terminated.

(b) No Impairment of Rights. Suspension or termination of the Plan shall not impair rights and obligations under any Award granted while the Plan is in effect except with the written consent of the affected Participant.

11. EFFECTIVE DATEOF PLAN.

The Plan originally become effective on the Effective Date. This amendment and restatement of the Plan document is effective on May 2, 2019, provided that this amendment and restatement of the Plan is approved by the Company’s shareholders at the annual general meeting of the shareholders of the Company held on such date.

12. CHOICEOF LAW.

The laws of the State of California shall govern all questions concerning the construction, validity and interpretation of this Plan, without regard to that state’s conflict of laws rules.

13.DEFINITIONS.As used in the Plan, the following definitions shall apply to the capitalized terms indicated below:

(a)“Affiliate” means, at the time of determination, any “parent” or “subsidiary” of the Company as such terms are defined in Rule 405 promulgated under the Securities Act. The Board shall have the authority to determine the time or times at which “parent” or “subsidiary” status is determined within the foregoing definition.

(b)“Award” means a Stock Award.

(c)“Award Agreement” means a written agreement between the Company and a Participant evidencing the terms and conditions of an Award.

(d)“Board” means the Board of Directors of the Company.

(e)“Capitalization Adjustment” means any change that is made in, or other events that occur with respect to, the Ordinary Shares subject to the Plan or subject to any Stock Award after the Effective Date without the receipt of consideration by the Company through merger, consolidation, reorganization, recapitalization, reincorporation, share dividend, dividend in property other than cash, large nonrecurring cash dividend, share split, liquidating dividend, combination of shares, exchange of shares, change in corporate structure or any similar equity restructuring transaction, as that term is used in Statement of Financial Accounting Standards No. 123 (revised). Notwithstanding the foregoing, the conversion of any convertible securities of the Company shall not be treated as a Capitalization Adjustment.

(f)“Change in Control” means the occurrence, in a single transaction or in a series of related transactions, of any one or more of the following events:

(i)any Exchange Act Person becomes the Owner, directly or indirectly, of securities of the Company representing more than fifty percent (50%) of the combined voting power of the Company’s then outstanding securities other than by virtue of a merger, consolidation or similar transaction. Notwithstanding the foregoing, a Change in Control shall not be deemed to occur (A) on account of the acquisition of securities of the Company directly from the Company, (B) on account of the acquisition of securities of the Company by an investor, any affiliate thereof or any other Exchange Act Person that acquires the Company’s securities in a transaction or series of related transactions the primary purpose of which is to obtain financing for the Company through the issuance of equity securities, or (C) solely because the level of Ownership held by any Exchange Act Person (the “Subject Person”) exceeds the designated percentage threshold of the outstanding voting securities as a result of a repurchase or other acquisition of voting securities by the Company or any Affiliate reducing the number of shares outstanding, provided that if a Change in Control would occur (but for the operation of this sentence) as a result of the acquisition of voting securities by the Company or any Affiliate, and after such share acquisition, the Subject Person becomes the Owner of any additional voting securities that, assuming the repurchase or other acquisition had not occurred, increases the percentage of the then outstanding voting securities Owned by the Subject Person over the designated percentage threshold, then a Change in Control shall be deemed to occur;

(ii)there is consummated a merger, consolidation or similar transaction involving (directly or indirectly) the Company and, immediately after the consummation of such merger, consolidation or similar transaction, the shareholders of the Company immediately prior thereto do not Own, directly or indirectly, either (A) outstanding voting securities representing more than fifty percent (50%) of the combined outstanding voting power of the surviving Entity in such merger, consolidation or similar transaction or (B) more than fifty percent (50%) of the combined outstanding voting power of the parent of the surviving Entity in such merger, consolidation or similar transaction, in each case in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such transaction;

(iii)the shareholders of the Company approve or the Board approves a plan of complete dissolution or liquidation of the Company, or a complete dissolution or liquidation of the Company shall otherwise occur, except for a liquidation into a parent corporation;

(iv)there is consummated a sale, lease, exclusive license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries, other than a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries to an Entity, more than fifty percent (50%) of the combined voting power of the voting securities of which are Owned by shareholders of the Company in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such sale, lease, license or other disposition; or

(v)individuals who, on the date the Plan is adopted by the Board, are members of the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the members of the Board;provided, however, that if the appointment or election (or nomination for election) of any new Board member was approved or recommended by a majority vote of the members of the Incumbent Board then still in office, such new member shall, for purposes of this Plan, be considered as a member of the Incumbent Board.

For the avoidance of doubt, any one or more of the above events may be effected pursuant to (i) a compromise or arrangement sanctioned by the Irish courts under section 201 of the Companies Act 1963 (as may be amended, updated or replaced from time to time) (the “1963 Act”), or (ii) a scheme, contract or offer which has become binding on all shareholders pursuant to Section 204 of the 1963 Act., or (iii) a bid pursuant to Regulation 23 or 24 of the European Communities (Takeover Bids (Directive 2004/25/EC)) Regulations 2006.

Notwithstanding the foregoing or any other provision of this Plan, (A) the term Change in Control shall not include a sale of assets, merger or other transaction effected exclusively for the purpose of changing the domicile of the Company, and (B) the definition of Change in Control (or any analogous term) in an individual written agreement between the Company or any Affiliate and the Participant shall supersede the foregoing definition with respect to Awards subject to such agreement;provided, however, that if no definition of Change in Control or any analogous term is set forth in such an individual written agreement, the foregoing definition shall apply.

(g)“Code” means the Internal Revenue Code of 1986, as amended, including any applicable regulations and guidance thereunder.

(h)“Committee” means a committee of one or more Directors to whom authority has been delegated by the Board in accordance with
Section 2(c).

(i)“Company” means Horizon Therapeutics Public Limited Company, a company incorporated under the laws of Ireland.

(j)“Consultant” means any person, including an advisor, who is (i) engaged by the Company or an Affiliate to render consulting or advisory services and is compensated for such services, or (ii) serving as a member of the board of directors of an Affiliate and is compensated for such services. However, service solely as aNon-employee Director, or payment of a fee for such service, shall not cause aNon-employee Director to be considered a “Consultant” for purposes of the Plan.Notwithstanding the foregoing, a person is treated as a Consultant under this Plan only if a FormS-8 Registration Statement under the Securities Act is available to register either the offer or the sale of the Company’s securities to such person.

(k)“Continuous Service” means that the Participant’s service with the Company or an Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A change in the capacity in which the Participant renders service to the Company or an Affiliate as an Employee, Consultant or Director or a change in the entity for which the Participant renders such service, provided that there is no interruption or termination of the Participant’s service with the Company or an Affiliate, shall not terminate a Participant’s Continuous Service;provided, however,if the Entity for which a Participant is rendering services ceases to qualify as an Affiliate, as determined by the Board, in its sole discretion, such Participant’s Continuous Service shall be considered to have terminated on the date such Entity ceases to qualify as an Affiliate. To the extent permitted by law, the Board or the chief executive officer of the Company (or an Affiliate, if applicable), in that party’s sole discretion, may determine whether Continuous Service shall be considered interrupted in the case of (i) any leave of absence approved by the Board or chief executive officer of the Company (or an Affiliate, if applicable), including sick leave, military leave or any other personal leave, or (ii) transfers between the Company, an Affiliate, or their successors. Notwithstanding the foregoing, a leave of absence shall be treated as Continuous Service for purposes of vesting in a Stock Award only to such extent as may be provided in the Company’s (or an Affiliate’s, if applicable) leave of absence policy, in the written terms of any leave of absence agreement or policy applicable to the Participant, or as otherwise required by law.

(l)“Corporate Transaction” means the consummation, in a single transaction or in a series of related transactions, of any one or more of the following events:

(i)a saleor other disposition of all or substantially all, as determined by the Board, in its sole discretion, of the consolidated assets of the Company and its Subsidiaries;

(ii)a sale or other disposition of at least ninety percent (90%) of the outstanding securities of the Company;

(iii)a merger, consolidation or similar transaction following which the Company is not the surviving corporation; or

(iv)a merger, consolidation or similar transaction following which the Company is the surviving corporation but the Ordinary Shares outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other property, whether in the form of securities, cash or otherwise.

(m)“Director” means a member of the Board.

(n)“Disability” means, with respect to a Participant, the inability of such Participant to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than twelve (12) months, as provided in Sections 22(e)(3) and 409A(a)(2)(c)(i) of the Code, and shall be determined by the Board on the basis of such medical evidence as the Board deems warranted under the circumstances.

(o)“Effective Date” means the effective date of this Plan, which is immediately prior to the effective time of the merger between Horizon Pharma, Inc. and Horizon Therapeutics Public Limited Company pursuant to the Transaction Agreement and Plan of Merger dated March 18, 2014.

(p)“Employee” means any person employed by the Company or an Affiliate. However, service solely as a Director or Consultant, or payment of a fee for such services, shall not cause a Director or Consultant to be considered an “Employee” for purposes of the Plan.

(q)“Entity” means a corporation, partnership, limited liability company or other entity.

(r)“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

(s)“Exchange Act Person”means any natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” shall not include (i) the Company or any Subsidiary of the Company, (ii) any employee benefit plan of the Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of the Company or any Subsidiary of the Company, (iii) an underwriter temporarily holding securities pursuant to a registered public offering of such securities, (iv) an Entity Owned, directly or indirectly, by the shareholders of the Company in substantially the same proportions as their Ownership of Ordinary Shares of the Company; or (v) any natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the Effective Date, is the Owner, directly or indirectly, of securities of the Company representing more than fifty percent (50%) of the combined voting power of the Company’s then outstanding securities.

(t)“Fair Market Value” means, as of any date, the value of the Ordinary Shares determined as follows:

(i)If the Ordinary Shares is listed on any established stock exchange or traded on the NASDAQ Global Market or the NASDAQ Global Select Market, the Fair Market Value of a share of Ordinary Shares, unless otherwise determined by the Board, shall be the closing sales price for such Ordinary Shares as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Ordinary Shares) on the last market trading day prior to the day of determination, as reported in a source the Board deems reliable.

(ii)Unless otherwise provided by the Board, if there is no closing sales price for the Ordinary Shares on the last market trading day prior to the day of determination, then the Fair Market Value shall be the closing selling price on the last preceding date for which such quotation exists.

(iii)In the absence of such markets for the Ordinary Shares, the Fair Market Value shall be determined by the Board in good faith and in a manner that complies with Sections 409A of the Code.

(u)“Non-Employee Director”means a Director who is not an Employee.

(v)“Nonstatutory Stock Option” means an Option not intended to qualify as an incentive stock option within the meaning of Section 422 of the Code and the regulations promulgated thereunder.

(w)“Officer” means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act.

(x)“Option” means a Nonstatutory Stock Option to purchase Ordinary Shares granted pursuant to the Plan.

(y)“Option Agreement” means a written agreement between the Company and an Optionholder evidencing the terms and conditions of an Option grant. Each Option Agreement shall be subject to the terms and conditions of the Plan.

(z)“Optionholder” means a person to whom an Option is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Option.

(aa)“Ordinary Shares” or “Shares” means the ordinary shares in the capital of the Company with a nominal value of US$0.0001 per share.

(bb)“Other Stock Award” means an award based in whole or in part by reference to the Ordinary Shares which is granted pursuant to the terms and conditions of Section 6(c).

(cc)“Other Stock Award Agreement”means a written agreement between the Company and a holder of an Other Stock Award evidencing the terms and conditions of an Other Stock Award grant. Each Other Stock Award Agreement shall be subject to the terms and conditions of the Plan.

(dd)“Own,”“Owned,”“Owner,”“Ownership”A person or Entity shall be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities.

(ee)“Participant” means a person to whom an Award is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Stock Award.

(ff)“Personal Data” has the same meaning as defined in the Data Protection Acts 1988 and 2003.

(gg)“Plan” means this Horizon Therapeutics Public Limited Company 2014Non-Employee Equity Plan.

(hh)“Restricted Stock Award” means an award of Ordinary Shares which is granted pursuant to the terms and conditions of Section 6(a).

(ii)“Restricted Stock Award Agreement” means a written agreement between the Company and a holder of a Restricted Stock Award evidencing the terms and conditions of a Restricted Stock Award grant. Each Restricted Stock Award Agreement shall be subject to the terms and conditions of the Plan.

(jj)“Restricted Stock Unit Award”means a right to receive Ordinary Shares which is granted pursuant to the terms and conditions of Section 6(b).

(kk)“Restricted Stock Unit Award Agreement”means a written agreement between the Company and a holder of a Restricted Stock Unit Award evidencing the terms and conditions of a Restricted Stock Unit Award grant. Each Restricted Stock Unit Award Agreement shall be subject to the terms and conditions of the Plan.

(ll)“Rule16b-3” means Rule16b-3 promulgated under the Exchange Act or any successor to Rule16b-3, as in effect from time to time.

(mm)“Securities Act” means the Securities Act of 1933, as amended.

(nn)“Stock Appreciation Right” or “SAR”means a right to receive the appreciation on Ordinary Shares that is granted pursuant to the terms and conditions of Section 5.

(oo)“Stock Appreciation Right Agreement” means a written agreement between the Company and a holder of a Stock Appreciation Right evidencing the terms and conditions of a Stock Appreciation Right grant. Each Stock Appreciation Right Agreement shall be subject to the terms and conditions of the Plan.

(pp)“Stock Award” means any right to receive Ordinary Shares granted under the Plan, including a Nonstatutory Stock Option, a Restricted Stock Award, a Restricted Stock Unit Award, a Stock Appreciation Right, or any Other Stock Award.

(qq)“Stock Award Agreement” means a written agreement between the Company and a Participant evidencing the terms and conditions of a Stock Award grant. Each Stock Award Agreement shall be subject to the terms and conditions of the Plan.

(rr)“Subsidiary” means, with respect to the Company, (i) any corporation of which more than fifty percent (50%) of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the time, stock of any other class or classes of such corporation shall have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (ii) any partnership, limited liability company or other entity in which the Company has a direct or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than fifty percent (50%).

HORIZON THERAPEUTICS PUBLIC LIMITED COMPANY

2014 NON-EMPLOYEE EQUITY PLAN

OPTION AGREEMENT

(NONSTATUTORY STOCK OPTION)

Pursuant to your Stock Option Grant Notice (“Grant Notice”) and this Option Agreement (the “Agreement”), Horizon Therapeutics Public Limited Company (the “Company”) has granted you an option under its 2014 Non-Employee Equity Plan (the “Plan”) to purchase the number of the Company’s Ordinary Shares indicated in your Grant Notice at the exercise price indicated in your Grant Notice. Capitalized terms not explicitly defined in this Agreement but defined in the Plan shall have the same definitions as in the Plan.

1. VESTING. Subject to the limitations contained herein, your option will vest as provided in your Grant Notice, provided that vesting will cease upon the termination of your Continuous Service.

2. NUMBEROF SHARESAND EXERCISE PRICE. The number of Ordinary Shares subject to your option and your exercise price per share referenced in your Grant Notice may be adjusted from time to time for Capitalization Adjustments.

3. METHODOF PAYMENT. Payment of the applicable exercise price is due in full upon exercise of all or any part of your option. All amounts due are payable in United States dollars based, if applicable, upon the local currency to United States dollar exchange rate published in the West Coast edition of The Wall Street Journal on the date of exercise of your option (or, if the date of exercise is not a business day in the United States, the preceding business day in the United States). You may not exercise your option, and no obligation shall arise upon the Company to procure the issue or transfer of the Ordinary Shares, unless and until the Company and/or any Affiliate are satisfied in their absolute discretion that you have fully paid up in cash (or by check) the nominal value of each Ordinary Share subject to the exercised portion of the option. You may elect to make payment of the remaining portion of the option exercise price by remittance for the amount payable or in any other mannerpermitted by your Grant Notice, which may include one or more of the following:

a.Provided that at the time of exercise the Ordinary Shares are publicly traded and quoted regularly in a source the Board deems reliable, pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board that, prior to the issuance of Ordinary Shares, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to the Company from the sales proceeds.

b.Subject to the consent of the Company at the time of exercise, by a “net exercise” arrangement pursuant to which the Company will reduce the number of Ordinary Shares issuable upon exercise of your option by the largest whole number of Ordinary Shares with a Fair Market Value that does not exceed the aggregate exercise price;provided, however, that:

1)the Company shall accept a cash or other payment from you to the extent of any remaining balance of the aggregate exercise price not satisfied by such reduction in the number of whole Ordinary Shares to be issued;

2)Ordinary Shares will no longer be subject to an Option and will not be exercisable thereafter to the extent that (A) Ordinary Shares issuable upon exercise are reduced to pay the exercise price pursuant to the “net exercise,” (B) Ordinary Shares are delivered to you as a result of such exercise, and (C) Ordinary Shares are withheld to satisfy tax withholding obligations.

4. WHOLE SHARES. You may exercise your option only for whole Ordinary Shares.

5. SECURITIES LAW COMPLIANCE. Notwithstanding anything to the contrary contained herein, you may not exercise your option unless the Ordinary Shares issuable upon such exercise are then registered under the Securities Act or, if such Ordinary Shares are not then so registered, the Company has determined that such exercise and issuance would be exempt from the registration requirements of the Securities Act. The exercise of your option also must comply with other applicable laws and regulations governing your option, including, without limitation, the laws and regulations of the United States and your country of residence, and you may not exercise your option if the Company determines that such exercise would not be in material compliance with such laws and regulations.

6. TERM. You may not exercise your option before the commencement of its term or after its term expires. The term of your option commences on the Date of Grant and expires upon the earliest of the following:

a.three (3) months after the termination of your Continuous Service for any reason other than Cause, Disability or death, provided that if during any part of such three (3)-month period you may not exercise your option solely because of the condition set forth in the preceding paragraph relating to “Securities Law Compliance,” your option shall not expire until the earlier of the Expiration Date or until it shall have been exercisable for an aggregate period of three (3) months after the termination of your Continuous Service;

b.twelve (12) months after the termination of your Continuous Service due to your Disability;

c.eighteen (18) months after your death if you die either during your Continuous Service or within three (3) months after your Continuous Service terminates for any reason other than Cause;

d.the Expiration Date indicated in your Grant Notice; or

e.the day before the tenth (10th) anniversary of the Date of Grant.

7. EXERCISE.

a.You may exercise the vested portion of your option (and the unvested portion of your option if your Grant Notice so permits) during its term by following the option

exercise instructions specified in your StockCross Financial Services brokerage account including adequate provision for payment of the option exercise price to the Company together with such additional documents as the Company may then require.

b.By exercising your option you agree that, as a condition to any exercise of your option, the Company may require you to enter into an arrangement providing for the payment by you to the Company of any tax withholding obligation of the Company arising by reason of (1) the exercise of your option, (2) the lapse of any substantial risk of forfeiture to which the Ordinary Shares are subject at the time of exercise, or (3) the disposition of Ordinary Shares acquired upon such exercise.

c.By exercising your option you agree that, as a condition to any exercise of your option, you must pay the nominal value of the Ordinary Shares by cash or check. The option will not be exercised, and the Ordinary Shares will not be issued to you until you pay the nominal value of the Ordinary Shares by cash or check.

8. TRANSFERABILITY. Your option is not transferable, except by will or by the laws of descent and distribution, and is exercisable during your life only by you. Notwithstanding the foregoing, by delivering written notice to the Company, in a form satisfactory to the Company, you may designate a third party who, in the event of your death, shall thereafter be entitled to exercise your option. In addition, if permitted by the Company you may transfer your option to a trust if you are considered to be the sole beneficial owner (determined under Section 671 of the Code and applicable state law) while the option is held in the trust, provided that you and the trustee enter into a transfer and other agreements required by the Company.

9. OPTIONNOTA SERVICE CONTRACT. Your option is not a service contract, and nothing in your option shall be deemed to create in any way whatsoever any obligation on your part to continue in the service of the Company or an Affiliate, or of the Company or an Affiliate to continue your service. In addition, nothing in your option shall obligate the Company or an Affiliate, their respective stockholders, Boards of Directors, Officers or Employees to continue any relationship that you might have as a Director or Consultant for the Company or an Affiliate.

10. WITHHOLDING OBLIGATIONS.

a.At the time you exercise your option, in whole or in part, or at any time thereafter as requested by the Company, you hereby authorize withholding from any amounts otherwise payable to you, and otherwise agree to make adequate provision for (including by means of a “cashless exercise” pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board to the extent permitted by the Company), any sums required to satisfy the federal, state, local and foreign tax withholding obligations and social security deduction obligations of the Company or an Affiliate, if any, which arise in connection with the exercise of your option.

b.Upon your request and subject to approval by the Company, in its sole discretion, and compliance with any applicable legal conditions or restrictions, the Company may withhold from fully vested Ordinary Shares otherwise issuable to you upon the exercise of your option a number of whole Ordinary Shares having a Fair Market Value, determined by the

Company as of the date of exercise, not in excess of the minimum amount of tax and social security contribution required to be withheld by law (or such lower amount as may be necessary to avoid classification of your option as a liability for financial accounting purposes). Any adverse consequences to you arising in connection with such share withholding procedure shall be your sole responsibility.

c.You may not exercise your option and no obligation shall arise upon the Company to procure the issue or transfer of the Ordinary Shares unless and until the Company and/or any Affiliate are satisfied in their absolute discretion that either (i) you have made payment, or have made arrangements satisfactory to the Company and/or any Affiliate for the payment to it of such sum as is sufficient to meet any withholding liability to Taxation (defined below) in any jurisdiction which is or would be recoverable from you following exercise of your option and/or the issue of Ordinary Shares by the Company arising from such exercise, and in respect of which the Company and/or any Affiliate is liable to account in any jurisdiction; or (ii) you have entered into an agreement with the Company and/or an Affiliate (in a form satisfactory to the Company or such Affiliate) to ensure that such a payment is made by you including, without limitation, amounts in respect of any employers’ social security (or the local law equivalent thereof) or other forms of Taxation. Accordingly, you may not be able to exercise your option when desired even though your option is vested, and the Company shall have no obligation to issue a certificate for such Ordinary Shares or release such Ordinary Shares from any escrow provided for herein unless such obligations are satisfied. “Taxation” shall include all forms of taxation including employees’ and employers’ social security, income tax and any other taxes of whatever nature in any jurisdiction together with any amount payable by an Affiliate in respect of which the Affiliate has a duty to account as a result of any laws of any jurisdiction relating to taxation.

11. PERSONAL DATA. You understand that the Company, and/or its Affiliates hold certain personal information about you. This information include your name, home address, telephone number, date of birth, social security or equivalent tax identification number, salary, nationality, job title, and details of your option grant and all Ordinary Shares subject to such grant that have been granted, cancelled, vested, unvested, or are outstanding (the “Personal Data”).

You hereby declare your express consent to allowing the Company and/or its Affiliates to transfer your Personal Data (name, home address, telephone number, date of birth, salary, nationality, job title, and details of the option grant and all Ordinary Shares subject to such grant) outside the country in which you are retained to its Affiliates, Horizon Pharma, Inc. and Horizon Pharma USA, Inc. which are located in the United States and their parent entity, Horizon Therapeutics Public Limited Company (together such entities are the “Company Group”). The legal persons for whom such Personal Data are intended are: Horizon Therapeutics Public Limited Company, Horizon Pharma, Inc., Horizon Pharma USA, Inc., StockCross Financial Services and any other third party entity providing option and/or Plan administration services to the Company and for the sole purpose of facilitating the transactions contemplated by this Stock Agreement. You have the right to access and correct your Personal Data by applying to the Company representative identified on the Grant Notice (the “Representative”). You have the right to revoke this consent at any time with future effect towards the Company Group by providing written notice to the Representative of such revocation (the “Revocation Notice”). You may also elect to exercise

your option, to the extent such option is vested, by following the option exercise instructions specified in your StockCross Financial Services brokerage account and making provision for payment of the applicable option exercise price to the Company concurrently with your Revocation Notice, in which case your consent revocation will become effective as soon as administratively practicable following the execution of your option exercise election and the issuance of the Ordinary Shares subject to the option to you. If you do not follow the option exercise instructions specified in your StockCross Financial Services brokerage account or provide for payment of the option exercise price along with your Revocation Notice, or to the extent your option is unvested at the time you elect to provide a Revocation Notice, then as soon as administratively practicable following the Representative’s receipt of the Revocation Notice your consent revocation will become effective and your option shall automatically immediately terminate and be forfeited, and you will not receive any Ordinary Shares or any other consideration in respect of such forfeited option.

12. ADDITIONALACKNOWLEDGEMENTS. You hereby consent and acknowledge that:

a.Participation in the Plan is voluntary and therefore you must accept the terms and conditions of the Plan and this option as a condition to participating in the Plan and receipt of this option.

b. The Plan is discretionary in nature and the Company can amend, cancel, or terminate it at any time.

c.This option and any other options under the Plan are voluntary and occasional and do not create any contractual or other right to receive future options or other benefits in lieu of future options, even if similar options have been granted repeatedly in the past.

d.All determinations with respect to any such future options, including, but not limited to, the time or times when such options are made, the number of Ordinary Shares, and performance and other conditions applied to the options, will be at the sole discretion of the Company.

e.The value of the Ordinary Shares and this option is an extraordinary item of compensation, which is outside the scope of your service contract or consulting agreement, if any. This option shall not form part of any past, current or future entitlement to remuneration or benefits which you may have under any service contract with the Company nor form any part of any such service contract between you and the Company.

f.The Ordinary Shares, this option, or any income derived therefrom are a potential bonus payment not paid in lieu of any cash compensation and not part of normal or expected compensation for any purposes, including, but not limited to, calculating any termination, severance, resignation, redundancy, end of service payments, bonuses, long-service awards, life or accident insurance benefits, pension or retirement benefits or similar payments.

g.In the event of the involuntary termination of your Continuous Service, your eligibility to receive Ordinary Shares or payments under the option or the Plan, if any, will terminate effective as of the date that you are no longer actively retained regardless of any reasonable notice period mandated under local law, except as expressly provided in the option.

h.The future value of the Ordinary Shares is unknown and cannot be predicted with certainty. You do not have, and will not assert, any claim or entitlement to compensation, indemnity or damages arising from the termination of this option or diminution in value of the Ordinary Shares and you irrevocably release the Company, its Affiliates and, if applicable, the entity to which you provide services, if different from the Company, from any such claim that may arise.

i.The Plan and this option set forth the entire understanding between you, the Company and any Affiliate regarding the acquisition of the Ordinary Shares and supersedes all prior oral and written agreements pertaining to this option.

13. TAX CONSEQUENCES. You hereby agree that the Company does not have a duty to design or administer the Plan or its other compensation programs in a manner that minimizes your tax liabilities. You shall not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates related to tax liabilities arising from your option or your other compensation. In particular, you acknowledge that this option is exempt from Section 409A of the Code only if the exercise price per share specified in the Grant Notice is at least equal to the “fair market value” per Ordinary Share on the Date of Grant and there is no other impermissible deferral of compensation associated with the option.

14. OTHER DOCUMENTS. You hereby acknowledge receipt or the right to receive a document providing the information required by Rule 428(b)(1) promulgated under the Securities Act, which includes the Plan prospectus. In addition, you acknowledge receipt of the Company’s policy permitting officers, directors and other specified individuals to sell shares only during certain “window” periods and the Company’s insider trading policy, in effect from time to time.

15. NOTICES. Any notices provided for in your option or the Plan shall be given in writing and shall be deemed effectively given upon receipt or, in the case of notices delivered by mail by the Company to you, five (5) days after deposit in the United States mail, postage prepaid, addressed to you at the last address you provided to the Company. Notwithstanding the foregoing, the Company may, in its sole discretion, decide to deliver any documents related to participation in the Plan and this option by electronic means or to request your consent to participate in the Plan by electronic means. By accepting the option you consent to receive such documents by electronic delivery and, if requested, to agree to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company.

16. MISCELLANEOUS.

a.The rights and obligations of the Company under your option shall be transferable to any one or more persons or entities, and all covenants and agreements hereunder shall inure to the benefit of, and be enforceable by the Company’s successors and assigns. Your rights and obligations under your option may only be assigned with the prior written consent of the Company.

b.You agree upon request to execute any further documents or instruments necessary or desirable in the sole determination of the Company to carry out the purposes or intent of your option.

c.You acknowledge and agree that you have reviewed your option in its entirety, have had an opportunity to obtain the advice of counsel prior to executing and accepting your option, and fully understand all provisions of your option.

d.This Agreement shall be subject to all applicable laws, rules, and regulations, and to such approvals by any governmental agencies or national securities exchanges as may be required.

e.All obligations of the Company under the Plan and this Agreement shall be binding on any successor to the Company, whether the existence of such successor is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business and/or assets of the Company.

17. GOVERNING PLAN DOCUMENT. Your option is subject to all the provisions of the Plan, the provisions of which are hereby made a part of your option, and is further subject to all interpretations, amendments, rules and regulations, which may from time to time be promulgated and adopted pursuant to the Plan. In the event of any conflict between the provisions of your option and those of the Plan, the provisions of the Plan shall control. In addition, your option (and any compensation paid or shares issued under your option) is subject to recoupment in accordance with The Dodd–Frank Wall Street Reform and Consumer Protection Act and any implementing regulations thereunder, any clawback policy adopted by the Company and any compensation recovery policy otherwise required by applicable law.

18. SEVERABILITY. If all or any part of this Agreement or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity shall not invalidate any portion of this Agreement or the Plan not declared to be unlawful or invalid. Any Section of this Agreement (or part of such a Section) so declared to be unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid.

19. EFFECTON OTHER BENEFIT PLANS. The value of the option subject to this Agreement shall not be included as compensation, earnings, salaries, or other similar terms used when calculating your benefits under any benefit plan sponsored by the Company or any Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any Affiliate’s benefit plans.

20. AMENDMENT. This Agreement may not be modified, amended or terminated except by an instrument in writing, signed by you and by a duly authorized representative of the Company. Notwithstanding the foregoing, this Agreement may be amended solely by the Board by a writing which specifically states that it is amending this Agreement, so long as a copy of such amendment is delivered to you, and provided that no such amendment adversely affecting your rights hereunder may be made without your written consent. Without limiting the foregoing, the Board reserves the right to change, by written notice to you, the provisions of this

Agreement in any way it may deem necessary or advisable to carry out the purpose of the grant as a result of any change in applicable laws or regulations or any future law, regulation, ruling, or judicial decision, provided that any such change shall be applicable only to rights relating to that portion of the option which is then subject to restrictions as provided herein.

HORIZON THERAPEUTICS PUBLIC LIMITED COMPANY

STOCK OPTION GRANT NOTICE

(2014 NON-EMPLOYEE EQUITY PLAN)

Horizon Therapeutics Public Limited Company (the “Company”), pursuant to its 2014 Non-Employee Equity Plan (the “Plan”), hereby grants to you a non-statutory stock option (the “Option”) to purchase the Company’s Ordinary Shares. The following specific terms of the Option can be obtained by logging on to your StockCross brokerage account: [Optionholder, Date of Grant, Vesting Commencement Date, Number of Ordinary Shares Subject to Option, Exercise Price (Per Share), Total Exercise Price, Expiration Date, Exercise Schedule, Vesting Schedule and Payment]. These specific terms are incorporated by reference into this Grant Notice. This Option is subject to all of the terms and conditions as set forth herein and in the Option Agreement and the Plan, all of which are available on the StockCross website.

Additional Terms/Acknowledgements: You must electronically accept the Option by logging into your StockCross account. If you have not set-up your StockCross brokerage account, the following information provided below will assist you in this process. Failure to do so may result in forfeiture of the Option. By electronically accepting the Option, you acknowledge receipt of, and understand and agree to, this Stock Option Grant Notice, the Option Agreement and the Plan. You further acknowledge that as of the Date of Grant, this Stock Option Grant Notice, the Option Agreement, and the Plan set forth the entire understanding between you and the Company regarding the acquisition of shares in the Company and supersede all prior oral and written agreements on that subject with the exception of awards previously granted and delivered to you under the Plan.

STOCKCROSS FINANCIAL SERVICES BROKERAGE ACCOUNT

The Company currently utilizes StockCross Financial Services as our online broker. StockCross Financial Services offers an internet website for viewing option data and for buying or selling stock your stock options. To open your brokerage account, you can do so by visiting the StockCross website at www.stockcross.com, select the red “Employee Stock Plans” menu item. Under the “Get Started” window, select the blue menu button “Open an Account.” Additionally, under the New Account Application screen, select “Employee Stock Option Plan ESOP” button to proceed with the brokerage application.

If you have any questions or comments completing the brokerage application, please contact the StockCross New Accounts team at800-225-6196.

OPTION ACCEPTANCE (via StockCross after completing your brokerage application)

Please follow steps 1 through 7 to electronically accept your Option.

Select the red menu item “Employee Stock Plans.”

In the Get Started screen, enter “HZNP” for the Company’s stock ticker symbol.

Under the StockCross Customer Account Login screen, enter your StockCross account number and password.

Once logged into your StockCross account, select the menu item “Employee Stock Plan.” This will bring you into another window screen which provides a summary of your equity grants. Please note that to view this information, you will need to disable popup blockers.

Select “My Portfolio.” This will show you all equity grants that you have been granted. For your new equity grant, in the last column, click on the “View” hyperlink.

Selecting “View” in step 7 will take you to an electronic acceptance window. For your reference, the Stock Option Agreement applicable to the Option is provided for your reference. If you agree with the terms and conditions of your equity grant, select the green “Accept” button.

IMPORTANT REMINDER:In order to avoid forfeiture of your Option, you must electronically accept your Option 30 daysprior to your first vesting date.

Contact Horizon Pharma, Inc.’s Corporate Controller Paul M. Palz at 224-383-3017 or email ppalz@horizontherapeutics.com with any further questions regarding your awards.

HORIZON THERAPEUTICS PUBLIC LIMITED COMPANY

2014 NON-EMPLOYEE EQUITY PLAN

RESTRICTED STOCK UNIT AGREEMENT

Pursuant to the Restricted Stock Unit Grant Notice (the “Grant Notice”) and this Restricted Stock Unit Agreement (the “Agreement”) and in consideration of your services, Horizon Therapeutics Public Limited Company (the “Company”) has granted you a Restricted Stock Unit Award (the “Award”) under its 2014 Non-Employee Equity Plan (the “Plan”) for the number of restricted stock units referenced in the Grant Notice. Capitalized terms not explicitly defined in this Agreement shall have the same meanings given to them in the Plan or the Grant Notice, as applicable. Except as otherwise explicitly provided herein, in the event of any conflict between the terms in this Agreement and the Plan, the terms of the Plan shall control.

The details of your Award, in addition to those set forth in the Grant Notice and the Plan, are as follows.

1. GRANTOFTHE AWARD. This Award represents your right to be issued on a future date the number of Ordinary Shares that is equal to the number of restricted stock units indicated in the Grant Notice (the “Stock Units”) at the Purchase Price per Ordinary Share specified in your Grant Notice. As of the Date of Grant, the Company will credit to a bookkeeping account maintained by the Company for your benefit (the “Account”) the number of Stock Units subject to the Award.

2. VESTING. Subject to the limitations contained herein, your Award will vest, if at all, in accordance with the vesting schedule provided in the Grant Notice, provided that vesting will cease upon the termination of your Continuous Service. Upon such termination of your Continuous Service, the Stock Units credited to the Account that were not vested on the date of such termination will be forfeited at no cost to the Company and you will have no further right, title or interest in such Stock Units or the Ordinary Shares to be issued in respect of such portion of the Award.

3. METHODOF PAYMENT. On or before the time you receive a distribution of the Ordinary Shares in settlement of your Stock Units, you hereby authorize the Company or any Affiliate to satisfy the payment of the Purchase Price per Ordinary Share with respect to such Ordinary Shares by withholding such payment from any other cash amounts otherwise payable to you. If no cash amounts are otherwise payable to you by the Company and available for such deduction, you must provide timely payment of the applicable Purchase Price to the Company via cash or check and no obligation shall arise upon the Company to procure the issue or transfer of the Ordinary Shares unless and until the Company and/or any Affiliate are satisfied in their absolute discretion that you have satisfied such payment requirement. All amounts due are payable in United States dollars based, if applicable, upon the local currency to United States dollar exchange rate published in the West Coast edition of The Wall Street Journal on the applicable payment date (or, if such date is not a business day in the United States, the preceding business day in the United States).

4. NUMBEROF STOCK UNITS, ORDINARY SHARESAND PURCHASE PRICE.

a.The number of Stock Units subject to your Award and the Purchase Price per Ordinary Share may be adjusted from time to time for Capitalization Adjustments, as provided in the Plan. Furthermore, the Purchase Price per Ordinary Share will be automatically adjusted from time to time, as applicable, such that it shall at all times be equal to the nominal value per Ordinary Share as then in effect. In no event will the Purchase Price per Ordinary Share be less than the nominal value per Ordinary Share.

b. Any additional Stock Units that become subject to the Award pursuant to this Section 4, if any, shall be subject, in a manner determined by the Board, to the same forfeiture restrictions, restrictions on transferability, and time and manner of delivery as applicable to the other Stock Units covered by your Award.

c. Notwithstanding the provisions of this Section 4, no fractional shares or rights for fractional Ordinary Shares shall be created pursuant to this Section 4. The Board shall, in its discretion, determine an equivalent benefit for any fractional shares or fractional shares that might be created by the adjustments referred to in this Section 4.

5. SECURITIES LAW COMPLIANCE. You may not be issued any shares in respect of your Award unless either (i) the shares are registered under the Securities Act; or (ii) the Company has determined that such issuance would be exempt from the registration requirements of the Securities Act. Your Award also must comply with other applicable laws and regulations governing the Award, including, without limitation, the laws and regulations of the United States and your country of residence, and you will not receive such shares if the Company determines that such receipt would not be in material compliance with such laws and regulations.

6. TRANSFER RESTRICTIONS. Your Award is not transferable, except by will or by the laws of descent and distribution. In addition to any other limitation on transfer created by applicable securities laws, you agree not to assign, hypothecate, donate, encumber or otherwise dispose of any interest in any of the Ordinary Shares subject to the Award until the shares are issued to you in accordance with Section 7 of this Agreement. After the shares have been issued to you, you are free to assign, hypothecate, donate, encumber or otherwise dispose of any interest in such shares provided that any such actions are in compliance with the provisions herein, any applicable Company policies (including, but not limited to, insider trading and window period policies) and applicable securities laws. Notwithstanding the foregoing, by delivering written notice to the Company, in a form satisfactory to the Company, you may designate a third party who, in the event of your death, shall thereafter be entitled to receive any distribution of Ordinary Shares to which you were entitled at the time of your death pursuant to this Agreement.

7. DATEOF ISSUANCE.

a.To the extent the Award is exempt from application of Section 409A of the Code and any state law of similar effect (collectively“Section 409A”), the Company will deliver to you a number of Ordinary Shares equal to the number of vested Stock Units subject to your Award, including any additional Stock Units received pursuant to Section 4 above that relate to those vested Stock Units, on the applicable vesting date(s). However, if a scheduled

delivery date falls on a date that is not a business day, such delivery date shall instead fall on the next following business day. Notwithstanding the foregoing, in the event that (i) any shares covered by your Award are scheduled to be delivered on a day (the “Original Distribution Date”) that does not occur: (A) during an open “window period” applicable to you under the Company’s policy permitting officers, directors and other designated individuals to sell shares only during certain “window” periods, in effect from time to time (the “Policy”), (B) on a day on which you are permitted to sell Ordinary Shares pursuant to a written plan that meets the requirements of Rule 10b5-1 under the Exchange Act, as determined by the Company in accordance with the Policy, or (C) on a date when you are otherwise permitted to sell Ordinary Shares on the open market, and (ii) the Company elects not to satisfy its tax withholding obligations by withholding shares from your distribution or withholding from other compensation otherwise payable to you by the Company, then such shares shall not be delivered on such Original Distribution Date and shall instead be delivered on the first business day of the next occurring open “window period” applicable to you pursuant to such Policy (regardless of whether you are still providing continuous services at such time) or the next business day when you are not prohibited from selling Ordinary Shares in the open market, but in no event later than the fifteenth (15th) day of the third calendar month of the calendar year following the calendar year in which the shares covered by the Award vest. Delivery of the shares pursuant to the provisions of this Section 7(a) is intended to comply with the requirements for the short-term deferral exemption available under Treasury Regulations Section 1.409A-1(b)(4) and shall be construed and administered in such manner. The form of such delivery of the shares (e.g., a stock certificate or electronic entry evidencing such shares) shall be determined by the Company.

b.The provisions of Appendix A to this Agreement will apply to the extent the Award is subject to, and not exempt from, application of Section 409A (a“Non-Exempt Award”).

8. DIVIDENDS. You shall receive no benefit or adjustment to your Award with respect to any cash dividend, stock dividend or other distribution that does not result from a Capitalization Adjustment as provided in the Plan; provided, however, that this sentence shall not apply with respect to any Ordinary Shares that are delivered to you in connection with your Award after such shares have been delivered to you.

9. RESTRICTIVE LEGENDS. The shares issued in respect of your Award shall be endorsed with appropriate legends determined by the Company.

10. AWARDNOTA SERVICE CONTRACT.

a.Your Continuous Service with the Company or an Affiliate is not for any specified term and may be terminated by you or by the Company or an Affiliate at any time, for any reason, with or without cause and with or without notice. Nothing in this Agreement (including, but not limited to, the vesting of your Award pursuant to the schedule set forth in the Grant Notice or the issuance of the shares in respect of your Award), the Plan or any covenant of good faith and fair dealing that may be found implicit in this Agreement or the Plan shall: (i) confer upon you any right to continue in the employ of, or affiliation with, the Company or an Affiliate; (ii) constitute any promise or commitment by the Company or an Affiliate regarding the fact or nature of future positions, future work assignments, future compensation or any other

term or condition of employment or affiliation; (iii) confer any right or benefit under this Agreement or the Plan unless such right or benefit has specifically accrued under the terms of this Agreement or Plan; or (iv) deprive the Company of the right to terminate you at will and without regard to any future vesting opportunity that you may have.

b.By accepting this Award, you acknowledge and agree that the right to continue vesting in the Award pursuant to the vesting schedule provided in the Grant Notice is earned only by continuing as an employee, director or consultant at the will of the Company (not through the act of being hired, being granted this Award or any other award or benefit) and that the Company has the right to reorganize, sell, spin-out or otherwise restructure one or more of its businesses or Affiliates at any time or from time to time, as it deems appropriate (a“reorganization”). You further acknowledge and agree that such a reorganization could result in the termination of your Continuous Service, or the termination of Affiliate status of your employer and the loss of benefits available to you under this Agreement, including but not limited to, the termination of the right to continue vesting in the Award. You further acknowledge and agree that this Agreement, the Plan, the transactions contemplated hereunder and the vesting schedule set forth herein or any covenant of good faith and fair dealing that may be found implicit in any of them do not constitute an express or implied promise of continued engagement as an employee, director or consultant for the term of this Agreement, for any period, or at all, and shall not interfere in any way with your right or the Company’s right to terminate your Continuous Service at any time, with or without cause and with or without notice.

11. WITHHOLDING OBLIGATIONS.

a.On or before the time you receive a distribution of the shares subject to your Award, or at any time thereafter as requested by the Company, you hereby authorize any required withholding from the Ordinary Shares issuable to you and/or otherwise agree to make adequate provision in cash for any sums required to satisfy the federal, state, local and foreign tax withholding obligations of the Company or any Affiliate which arise in connection with your Award (the “Withholding Taxes”). Additionally, the Company may, in its sole discretion, satisfy all or any portion of the Withholding Taxes obligation relating to your Award by any of the following means or by a combination of such means: (i) withholding from any compensation otherwise payable to you by the Company; (ii) causing you to tender a cash payment, (iii) permitting or requiring you to enter into a “same day sale” commitment with a broker-dealer that is a member of the Financial Industry Regulatory Authority (a “FINRA Dealer”) whereby you irrevocably elect to sell a portion of the shares to be delivered in connection with your Restricted Stock Units to satisfy the Withholding Taxes and whereby the FINRA Dealer irrevocably commits to forward the proceeds necessary to satisfy the Withholding Taxes directly to the Company and/or its Affiliates; or (iv) withholding Ordinary Shares from the Ordinary Shares issued or otherwise issuable to you in connection with the Award with a Fair Market Value (measured as of the date Ordinary Shares are issued to pursuant to Section 7) equal to the amount of such Withholding Taxes; provided, however, that the number of such Ordinary Shares so withheld shall not exceed the amount necessary to satisfy the Company’s required tax withholding obligations using the minimum statutory withholding rates for federal, state, local and foreign tax purposes, including payroll taxes, that are applicable to supplemental taxable income; and provided further, that to the extent necessary to qualify for an exemption from application of Section 16(b) of the Exchange Act, such share withholding procedure shall be subject to the express prior approval of the Company’s Compensation Committee.

b.Unless the tax withholding obligations of the Company and/or any Affiliate are satisfied, the Company shall have no obligation to deliver to you any Ordinary Shares pursuant to this Award.

c.No obligation shall arise upon the Company to procure the issue or transfer of the Ordinary Shares unless and until the Company and/or any Affiliate are satisfied in their absolute discretion that either (i) you have made payment, or have made arrangements satisfactory to the Company and/or any Affiliate for the payment to it of such sum as is sufficient to meet any withholding liability to Taxation (defined below) in any jurisdiction which is or would be recoverable from you in connection with the vesting or the Award or the issuance of Ordinary Shares by the Company in settlement of the Award, and in respect of which the Company and/or any Affiliate is liable to account in any jurisdiction; or (ii) you have entered into an agreement with the Company and/or an Affiliate (in a form satisfactory to the Company or such Affiliate) to ensure that such a payment is made by you including, without limitation, amounts in respect of any employers’ social security (or the local law equivalent thereof) or other forms of Taxation. Accordingly, the Company shall have no obligation to issue a certificate for such Ordinary Shares or release such Ordinary Shares from any escrow provided for herein unless such obligations are satisfied. “Taxation” shall include all forms of taxation including employees’ and employers’ social security, income tax and any other taxes of whatever nature in any jurisdiction together with any amount payable by an Affiliate in respect of which the Affiliate has a duty to account as a result of any laws of any jurisdiction relating to taxation.

12. PERSONAL DATA. You understand that the Company and/or its Affiliates hold certain personal information about you. This information include your name, home address, telephone number, date of birth, social security or equivalent tax identification number, salary, nationality, job title, and details of your Award and all Ordinary Shares subject to your Award that have been granted, cancelled, vested, unvested, or are outstanding (the “Personal Data”).

You hereby declare your express consent to allowing the Company to transfer your Personal Data (name, home address, telephone number, date of birth, salary, nationality, job title, and details of the Award and all Ordinary Shares subject to such grant) outside the country in which you are retained to its Affiliates, Horizon Pharma, Inc. and Horizon Pharma USA, Inc. which are located in the United States and their parent entity, Horizon Therapeutics Public Limited Company (together such entities are the “Company Group”). The legal persons for whom such Personal Data are intended are: Horizon Therapeutics Public Limited Company, Horizon Pharma, Inc., Horizon Pharma USA, Inc., StockCross Financial Services and any other third party entity providing equity award and/or Plan administration services to the Company and for the sole purpose of facilitating the transactions contemplated by this Agreement. You have the right to access and correct your Personal Data by applying to the Company representative identified on the Grant Notice (the “Representative”). You have the right to revoke this consent at any time with future effect towards the Company Group by providing written notice to the Representative of such revocation (the “Revocation Notice”) and as soon as administratively practicable following the Representative’s receipt of the Revocation Notice your consent revocation will become effective and your Award shall automatically immediately terminate and be forfeited, and you will not receive any Ordinary Shares or any other consideration in respect of such forfeited Award.

13. ADDITIONALACKNOWLEDGEMENTS. You hereby consent and acknowledge that:

a.Participation in the Plan is voluntary and therefore you must accept the terms and conditions of the Plan and this Award as a condition to participating in the Plan and receipt of the Award.

b. The Plan is discretionary in nature and the Company can amend, cancel, or terminate it at any time.

c.This Award and any other equity awards granted under the Plan are voluntary and occasional and do not create any contractual or other right to receive future awards or other benefits in lieu of future awards, even if similar awards have been granted repeatedly in the past.

d.All determinations with respect to any such future awards, including, but not limited to, the time or times when such awards are granted, the number of Ordinary Shares, and performance and other conditions applied to the awards, will be at the sole discretion of the Company.

e.The value of the Ordinary Shares and this Award is an extraordinary item of compensation, which is outside the scope of your service contract or consulting agreement, if any. This Award shall not form part of any past, current or future entitlement to remuneration or benefits which you may have under any service contract with the Company nor form any part of any such contract between you and the Company.

f.The Ordinary Shares, this Award, or any income derived therefrom are a potential bonus payment not paid in lieu of any cash salary compensation and not part of normal or expected compensation or salary for any purposes, including, but not limited to, calculating any termination, severance, resignation, redundancy, end of service payments, bonuses, long-service awards, life or accident insurance benefits, pension or retirement benefits or similar payments.

g.In the event of the involuntary termination of your Continuous Service, your eligibility to receive Ordinary Shares or payments under the Award or the Plan, if any, will terminate effective as of the date that you are no longer actively employed or retained regardless of any reasonable notice period mandated under local law, except as expressly provided in the Agreement.

h.The future value of the Ordinary Shares is unknown and cannot be predicted with certainty. You do not have, and will not assert, any claim or entitlement to compensation, indemnity or damages arising from the termination of this award or diminution in value of the Ordinary Shares and you irrevocably release the Company, its Affiliates and, if applicable, your employer, if different from the Company, from any such claim that may arise.

i. The Plan and this Agreement set forth the entire understanding between you, the Company and any Affiliate regarding the acquisition of the Ordinary Shares and supersedes all prior oral and written agreements pertaining to this Award.

14. UNSECURED OBLIGATION. Your Award is unfunded, and as a holder of a vested Award, you shall be considered an unsecured creditor of the Company with respect to the Company’s obligation, if any, to issue shares pursuant to this Agreement. You shall not have voting or any other rights as a shareholder of the Company with respect to the shares to be issued pursuant to this Agreement until such shares are issued to you pursuant to Section 7 of this Agreement. Upon such issuance, you will obtain full voting and other rights as a shareholder of the Company. Nothing contained in this Agreement, and no action taken pursuant to its provisions, shall create or be construed to create a trust of any kind or a fiduciary relationship between you and the Company or any other person.

15. OTHER DOCUMENTS. You hereby acknowledge receipt or the right to receive a document providing the information required by Rule 428(b)(1) promulgated under the Securities Act, which includes the Plan prospectus. In addition, you acknowledge receipt of the Company’s policy permitting officers, directors and other specified individuals to sell shares only during certain “window” periods and the Company’s insider trading policy, in effect from time to time.

16. NOTICES. Any notices provided for in your Award or the Plan shall be given in writing (including electronically) and shall be deemed effectively given upon receipt or, in the case of notices delivered by the Company to you, five (5) days after deposit in the United States mail, postage prepaid, addressed to you at the last address you provided to the Company. Notwithstanding the foregoing, the Company may, in its sole discretion, decide to deliver any documents related to participation in the Plan and this Award by electronic means or to request your consent to participate in the Plan by electronic means. By accepting this Award you consent to receive such documents by electronic delivery and, if requested, to agree to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company.

17. MISCELLANEOUS.

a.The rights and obligations of the Company under your Award shall be transferable to any one or more persons or entities, and all covenants and agreements hereunder shall inure to the benefit of, and be enforceable by the Company’s successors and assigns. Your rights and obligations under your Award may only be assigned with the prior written consent of the Company.

b.You agree upon request to execute any further documents or instruments necessary or desirable in the sole determination of the Company to carry out the purposes or intent of your Award.

c.You acknowledge and agree that you have reviewed your Award in its entirety, have had an opportunity to obtain the advice of counsel prior to executing and accepting your Award, and fully understand all provisions of your Award.

d.This Agreement shall be subject to all applicable laws, rules, and regulations, and to such approvals by any governmental agencies or national securities exchanges as may be required.

18. GOVERNING PLAN DOCUMENT. Your Award is subject to all the provisions of the Plan, the provisions of which are hereby made a part of your Award, and is further subject to all interpretations, amendments, rules and regulations which may from time to time be promulgated and adopted pursuant to the Plan. Except as expressly provided in this Agreement, in the event of any conflict between the provisions of your Award and those of the Plan, the provisions of the Plan shall control. In addition, your Award (and any compensation paid or shares issued under your Award) is subject to recoupment in accordance with The Dodd–Frank Wall Street Reform and Consumer Protection Act and any implementing regulations thereunder, any clawback policy adopted by the Company and any compensation recovery policy otherwise required by applicable law.

19. SEVERABILITY. If all or any part of this Agreement or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity shall not invalidate any portion of this Agreement or the Plan not declared to be unlawful or invalid. Any Section of this Agreement (or part of such a Section) so declared to be unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid.

20. EFFECTON OTHER BENEFIT PLANS. The value of the Award subject to this Agreement shall not be included as compensation, earnings, salaries, or other similar terms used when calculating your benefits under any benefit plan sponsored by the Company or any Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any Affiliate’s benefit plans.

21. AMENDMENT. This Agreement may not be modified, amended or terminated except by an instrument in writing, signed by you and by a duly authorized representative of the Company. Notwithstanding the foregoing, this Agreement may be amended solely by the Board by a writing which specifically states that it is amending this Agreement, so long as a copy of such amendment is delivered to you, and provided that no such amendment adversely affecting your rights hereunder may be made without your written consent. Without limiting the foregoing, the Board reserves the right to change, by written notice to you, the provisions of this Agreement in any way it may deem necessary or advisable to carry out the purpose of the grant as a result of any change in applicable laws or regulations or any future law, regulation, ruling, or judicial decision, provided that any such change shall be applicable only to rights relating to that portion of the Award which is then subject to restrictions as provided herein.

22. NO OBLIGATIONTO MINIMIZE TAXES. The Company has no duty or obligation to minimize the tax consequences to you of this Award and will not be liable to you for any adverse tax consequences to you arising in connection with this Award. You are hereby advised to consult with your own personal tax, financial and/or legal advisors regarding the tax consequences of this Award and by signing the Grant Notice, you have agreed that you have done so or knowingly and voluntarily declined to do so.

Appendix A

The provisions set forth on this Appendix A shall apply to the extent the Award is a Non-Exempt Award and shall supersede any provisions to the contrary set forth in the Plan or in any other section of the Agreement to which this Appendix A is attached.

1.The provisions of this Section 1 are intended to apply to the extent your Award is a Non-Exempt Award because of the terms of a severance arrangement or other agreement between you and the Company, if any, that provide for acceleration of vesting of your Award and issuance of the shares in respect of the Award upon your termination of employment or separation from service (as such term is defined in Section 409A(a)(2)(A)(i) of the Code (and without regard to any alternative definition thereunder) (“Separation from Service”) and such severance benefit does not satisfy the requirements for an exemption from application of Section 409A provided under Treasury Regulations Section 1.409A-1(b)(4) or 1.409A-1(b)(9) (“Non-Exempt Severance Arrangement”). To the extent your Award is a Non-Exempt Award due to application of a Non-Exempt Severance Arrangement, the following provisions in this Section 1 of Appendix A shall supersede anything to the contrary in Section 6(a) of the Award Agreement.

a.If your Award vests in the ordinary course during your Continuous Service in accordance with the vesting schedule set forth in the Grant Notice, without accelerating vesting under the terms of a Non-Exempt Severance Arrangement, in no event will the shares be issued in respect of your Award any later than the later of: (i) December 31^st of the calendar year that includes the applicable vesting date and (ii) the 60^th day that follows the applicable vesting date.

b.If vesting of your Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with your Separation from Service, and such vesting acceleration provisions were in effect as of the date of grant of your Award and, therefore, are part of the terms of your Award as of the date of grant, then the shares will be earlier issued in respect of your Award upon your Separation from Service in accordance with the terms of the Non-Exempt Severance Arrangement, but in no event later than the 60^th day that follows the date of your Separation from Service. However, if at the time the shares would otherwise be issued you are subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such shares shall not be issued before the date that is six (6) months following the date of your Separation from Service, or, if earlier, the date of your death that occurs within such six month period.

c.If vesting of your Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with your Separation from Service, and such vesting acceleration provisions were not in effect as of the date of grant of the Award and, therefore, are not a part of the terms of your Award on the date of grant, then such acceleration of vesting of your Award shall not accelerate the issuance date of the shares, but the shares shall instead be issued on the same schedule as set forth in the Grant Notice as if they had vested in the ordinary course during your Continuous Service, notwithstanding the vesting acceleration of the Award. Such issuance schedule is intended to satisfy the requirements of payment on a specified date or pursuant to a fixed schedule, as provided under Treasury Regulations Section 1.409A-3(a)(4).

2.Permitted Treatment of Non-Exempt Awards Upon a Corporate Transaction for Employees and Consultants. The provisions in this Section 2 shall apply and shall supersede anything to the contrary that may be set forth in the Plan with respect to the permitted treatment of your Non-Exempt Award in connection with a Corporate Transaction if you were either an Employee or Consultant upon the applicable date of grant of your Non-Exempt Award.

a.Vested Non-Exempt Awards: To the extent your Non-Exempt Award has vested in accordance with its terms upon or prior to the date of a Corporate Transaction (such portion of your Non-Exempt Award is a “Vested Non-Exempt Award”), then the following provisions shall apply.

1)If the Corporate Transaction is also a change in the ownership or effective control of the Company, or in the ownership of a substantial portion of the Company’s assets, as described in Section 409A(a)(2)(A)(v) of the Code and Treasury Regulations Section 1.409A-3(i)(5) (a “409A Change of Control”), then the surviving or acquiring corporation (or its parent company) (the “Acquiring Entity”) may not assume, continue or substitute your Vested Non-Exempt Award. Upon the 409A Change of Control the settlement of your Vested Non-Exempt Award will automatically be accelerated and the shares will be immediately issued in respect of your Vested Non-Exempt Award. Alternatively, the Company may instead provide that you will receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to you upon the 409A Change of Control.

2)If the Corporate Transaction is not also a 409A Change of Control, then the Acquiring Entity must either assume, continue or substitute your Vested Non-Exempt Award. The shares to be issued in respect of your Vested Non-Exempt Award shall be issued to you by the Acquiring Entity on the same schedule that the shares would have been issued to you if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to you on such issuance dates, with the determination of the Fair Market Value of the shares made on the date of the Corporate Transaction.

b.Unvested Non-Exempt Awards. To the extent your Non-Exempt Award has not vested in accordance with its terms upon or prior to the date of any Corporate Transaction, (such portion of your Non-Exempt Award is an “Unvested Non-Exempt Award”), then the following provisions shall apply.

1)If the Acquiring Entity will not assume, substitute or continue your Unvested Non-Exempt Award, then such Award shall automatically terminate and be forfeited upon the Corporate Transaction with no consideration payable to you in respect of your forfeited Unvested Non-Exempt Award. Notwithstanding the foregoing, to the extent permitted and in compliance with the requirements of Section 409A, the Company may in its discretion determine to elect to accelerate the vesting and settlement of the Unvested Non-Exempt Award upon the Corporate Transaction, or instead substitute a cash payment equal to the Fair Market Value of such shares that would otherwise be issued to you, as further provided in Section 4(b) below. In the absence of such discretionary election by the Company, your Unvested Non-Exempt Award shall be forfeited without payment of any consideration to you if the Acquiring Entity will not assume, substitute or continue your Unvested Non-Exempt Award in connection with the Corporate Transaction.

2)The foregoing treatment shall apply with respect to all Unvested Non-Exempt Awards upon any Corporate Transaction, and regardless of whether or not such Corporate Transaction is also a 409A Change of Control.

3.Permitted Treatment of Non-Exempt Awards Upon a Corporate Transaction for Non-Employee Directors. If you were a Director but not an Employee on the applicable grant date of your Non-Exempt Award and (“Non-Exempt Director Award”), the following provisions shall apply and shall supersede anything to the contrary that may be set forth in the Plan with respect to the permitted treatment of your Non-Exempt Director Award in connection with a Corporate Transaction.

a.If the Corporate Transaction is also a 409A Change of Control then the Acquiring Entity may not assume, continue or substitute your Non-Exempt Director Award. Upon the 409A Change of Control the vesting and settlement of your Non-Exempt Director Award will automatically be accelerated and the shares will be immediately issued to you in respect of the Non-Exempt Director Award. Alternatively, the Company may provide that you will instead receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to you upon the 409A Change of Control pursuant to the preceding provision.

b.If the Corporate Transaction is not also a 409A Change of Control, then the Acquiring Entity must either assume, continue or substitute your Non-Exempt Director Award. Unless otherwise determined by the Board, your Non-Exempt Director Award will remain subject to the same vesting and forfeiture restrictions that were applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of your Non-Exempt Director Award shall be issued to your by the Acquiring Entity on the same schedule that the shares would have been issued to you if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to you on such issuance dates, with the determination of Fair Market Value made on the date of the Corporate Transaction.

4.General Superseding Provisions. The provisions in this Section 4 shall apply and supersede anything to the contrary that may be set forth in the Plan, the Grant Notice or in any other section of the Agreement with respect to the permitted treatment of your Non-Exempt Award:

a.Any exercise by the Board of discretion to accelerate the vesting of your Non-Exempt Award shall not result in any acceleration of the scheduled issuance dates for the shares in respect of the Non-Exempt Award unless earlier issuance of the shares upon the applicable vesting dates would be in compliance with the requirements of Section 409A.

b.The Company explicitly reserves the right to earlier settle your Non-Exempt Award to the extent permitted and in compliance with the requirements of Section 409A, including pursuant to any of the exemptions available in Treasury Regulations Section 1.409A-3(j)(4)(ix).

c. To the extent the terms of your Non-Exempt Award provide that it will be settled upon a Change in Control or Corporate Transaction, to the extent it is required for compliance with the requirements of Section 409A, the Change in Control or Corporate Transaction event triggering settlement must also constitute a 409A Change of Control. To the extent the terms of your Non-Exempt Award provides that it will be settled upon a termination of employment or termination of Continuous Service, to the extent it is required for compliance with the requirements of Section 409A, the termination event triggering settlement must also constitute a Separation From Service. However, if at the time the shares would otherwise be issued to you in connection with your “separation from service” you are subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such shares shall not be issued before the date that is six (6) months following the date of your Separation From Service, or, if earlier, the date of your death that occurs within such six month period.

5.Section 409A Compliance. The provisions in this Agreement for delivery of the shares in respect of the Non-Exempt Award are intended to comply with the requirements of Section 409A so that the delivery of the shares to you in respect of your Non-Exempt Award will not trigger the additional tax imposed under Section 409A, and any ambiguities herein will be so interpreted.

HORIZON THERAPEUTICS PUBLIC LIMITED COMPANY

RESTRICED STOCK UNIT GRANT NOTICE

(2014 NON-EMPLOYEE EQUITY PLAN)

Horizon Therapeutics Public Limited Company (the “Company”), pursuant to its 2014 Non-Employee Equity Plan (the “Plan”), hereby grants to you a restricted stock unit award (the “Award”) to purchase the Company’s Ordinary Shares. The following specific terms of the Award can be obtained by logging on to your StockCross brokerage account: [Participant, Date of Grant, Vesting Commencement Date, Number of Restricted Stock Units, Purchase Price per Ordinary Share, Vesting Schedule and Issuance Schedule]. These specific terms are incorporated by reference into this Grant Notice. This Award is subject to all of the terms and conditions as set forth herein and in the Restricted Stock Unit Agreement (the “Award Agreement”) and the Plan, all of which are available on the StockCross website. Capitalized terms are defined in the Plan or the Award Agreement shall have the meanings set forth in the Plan or the Award Agreement. The Purchase Price per Ordinary Share that may be issued in settlement of your Award is equal to the nominal value per Ordinary Share as of the Date of Grant and is subject to adjustment as provided in Section 4 of the Award Agreement.

Additional Terms/Acknowledgements: You must electronically accept the Award by logging into your StockCross account. If you have not set-up your StockCross brokerage account, the following information provided below will assist you in this process. Failure to do so may result in forfeiture of the Award. By electronically accepting the Award, you acknowledge receipt of, and understand and agree to, this Restricted Stock Unit Grant Notice, the Award Agreement and the Plan. You further acknowledge that as of the Date of Grant, this Restricted Stock Unit Grant Notice, the Award Agreement, and the Plan set forth the entire understanding between you and the Company regarding the acquisition of shares in the Company and supersede all prior oral and written agreements on that subject with the exception of: (i) any written employment or severance arrangement that would provide for vesting acceleration of the Award upon the terms and conditions set forth therein, or (ii) any compensation recovery policy that is adopted by the Company or is otherwise required by applicable law. By accepting this Award, the Participant consents to receive Plan documents by electronic delivery and to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company.

STOCKCROSS FINANCIAL SERVICES BROKERAGE ACCOUNT

The Company currently utilizes StockCross Financial Services as our online broker. StockCross Financial Services offers an internet website for viewing Award data and for buying or selling stock subject to your stock Awards. To open your brokerage account, you can do so by visiting the StockCross website at www.stockcross.com, select the red “Employee Stock Plans” menu item. Under the “Get Started” window, select the blue menu button “Open an Account.” Additionally, under the New Account Application screen, select “Employee Stock Award Plan ESOP” button to proceed with the brokerage application.

If you have any questions or comments completing the brokerage application, please contact the StockCross New Accounts team at800-225-6196.

AWARD ACCEPTANCE (via StockCross after completing your brokerage application)

Please follow steps 1 through 7 to electronically accept your Award.

Select the red menu item “Employee Stock Plans.”

In the Get Started screen, enter “HZNP” for the Company’s stock ticker symbol.

Under the StockCross Customer Account Login screen, enter your StockCross account number and password.

Select “My Portfolio.” This will show you all equity grants that you have been granted. For your new equity grant, in the last column, click on the “View” hyperlink.

Selecting “View” in step 7 will take you to an electronic acceptance window. For your reference, the Award Agreement applicable to the Award is provided for your reference. If you agree with the terms and conditions of your equity grant, select the green “Accept” button.

IMPORTANT REMINDER:In order to avoid forfeiture of your Award, you must electronically accept your Award 30 daysprior to your first vesting date.

Contact Horizon Pharma, Inc.’s Corporate Controller Paul M. Palz at 224-383-3017 or email ppalz@horizontherapeutics.com with any further questions regarding your awards.

Horizon Therapeutics Public (HZNP) 8-KDeparture of Directors or Certain Officers