Document:

Document

Exhibit 10.1
Severance Plan for U.S. Executive Vice Presidents

As an Executive Vice President, you are entitled to severance benefits in the event your employment is terminated by Biogen other than For Cause or for reason of death or Disability (as these terms are defined in the Biogen Inc. 2017 Omnibus Equity Plan, as amended from time to time, or any successor plan there to (“OEP”).
Benefits
Your severance benefits are comprised of (i) a lump sum payment (as calculated below), (ii) upon completion of the appropriate forms, continuation of your participation in Biogen’s group medical and dental insurance plans, to the same extent permitted by COBRA and to the same extent such insurance is then provided to regular employees of Biogen, including payment by you of a portion of the insurance premiums (i.e., the “Insurance Benefit”) and (iii) the reasonable cost of up to 12 months of executive-level outplacement services from a recognized provider of such services selected by Biogen, at the expense of Biogen (upon receipt of appropriate documentation). Except as otherwise prohibited by local law, any severance payments contemplated by this plan will be reduced by the number of weeks’ pay corresponding to any periods during which the employee is not actively working, including statutory or contractual notice periods and any garden or other leave.  
The lump sum severance payment is calculated as follows:
[12 + (A x 2)] x B = lump sum payment
where:    A is the number of full years of service with Biogen (but A x 2 may not exceed 9), and B is the monthly equivalent of your target annual cash compensation at the time of your termination (i.e., one-twelfth of the sum of your then annual base salary plus target annual bonus).
The following are examples of how the lump sum payment and Insurance Benefit Period are determined:
If your employment with Biogen is terminated after 10 months of employment, you will receive a lump sum payment equal to 12 months of your target annual cash compensation and continue to participate in Biogen’s group medical and dental plans for 12 months, unless you become eligible to participate in another employer’s medical and dental plans before that date. COBRA continuation of medical and dental benefits is available, at your own expense, for an additional six months after this 12-month Insurance Benefit Period.
If your employment with Biogen is terminated after five years, you will receive a lump sum payment equal to 21 months [12+9] of your target annual cash compensation and continue to participate in Biogen’s group medical and dental plans for 18 months, unless you become eligible to participate in another employer’s medical and dental plans before that date.
If at any time within two years following a Corporate Transaction or Corporate Change in Control (as these terms are defined in Biogen’s OEP) your employment is terminated by Biogen 
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Severance Plan for U.S. Executive Vice Presidents

or the succeeding corporate entity, other than For Cause or for reason of death or Disability (as these terms are defined in Biogen’s OEP), or you experience an Involuntary Employment Action (defined below) and as a result you terminate your employment with Biogen or the succeeding corporate entity, then, regardless of the length of your service with Biogen and the succeeding corporate entity, and in lieu of the formula set forth above, you will receive a lump sum payment equivalent to 24 months of your target annual cash compensation at the time of your termination or at the time of a Corporate Transaction or Corporate Change in Control, whichever is higher. In addition, you will be entitled to continue participating in Biogen’s group medical and dental plans for 24 months, unless you become eligible to participate in another employer’s medical and dental plans before that date. The term “Involuntary Employment Action” shall have the definition set forth in Biogen’s OEP, provided, however, that the term “Corporate Transaction” used in that definition shall be deemed to mean either a Corporate Transaction or Change in Control, as the case may be, and provided also that prior to your termination of employment you have notified the Chief Legal Counsel or the Head of Human Resources of Biogen in writing of the basis for your Involuntary Employment Action, you have given such notice within one year of the circumstances giving rise to your Involuntary Employment Action and Biogen does not cure such circumstances within 30 days after the date of your notice.
Delivery of Benefits
Payment and provision of all the benefits provided under this arrangement are conditioned on your execution and delivery of all necessary forms and an irrevocable general release in favor of Biogen, in form and substance reasonably acceptable to Biogen, with respect to any and all claims relating to your employment and the termination of your employment with Biogen. If you retire or voluntarily terminate your employment with Biogen, or Biogen terminates your employment For Cause or for reason of death or Disability (as these terms are defined in Biogen’s OEP), or you do not provide the requisite general release, you will not be eligible to receive the severance benefits described above.
If all other conditions of this arrangement are met, a lump sum payment (less applicable taxes and other mandatory deductions as required by law) will be paid to you following the termination of your employment, no later than the first to occur of: a) 90 days following your termination of your employment with Biogen and b) March 15 of the year following the calendar year in which termination of employment occurs, unless you are a “specified employee” as defined in Section 409A of the Internal Revenue Code of 1986, as amended (i.e., “Section 409A”). (If all preconditions to payment, including the delivery of an irrevocable general release, are not satisfied prior to the earlier of these two dates, payment to you may be delayed and you may incur additional tax liabilities under Section 409A.) If you are a “specified employee”, to the extent required by Section 409A, payment will not be made to you before the date which is six months after you “separate from service” (or, if earlier, your date of death or Disability) unless the payment qualifies as excepted welfare benefits under Section 409A, does not constitute a “deferral of compensation” under Section 409A or is otherwise not subject to the requirements of Section 409A.  Each payment made under this arrangement shall be treated as a separate payment and the right to receive a series of installment payments under this arrangement shall be treated as a right to a series of separate payments.
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Severance Plan for U.S. Executive Vice Presidents

The Insurance Benefit will be paid on a monthly basis and will continue until the earlier of (i) the date you become eligible to participate in the medical and dental insurance plan of another employer or (ii) the date that is [12 + (A x 2)] months, but not more than 21 months (or 24 months in the case of a Corporate Transaction or Change in Control), following the termination of your employment with Biogen (the “Insurance Benefit Period”). You will have the right, at your own expense, to continue your participation in Biogen’s group medical and dental insurance plans at the expiration of the Insurance Benefit Period, pursuant to the provisions of COBRA, but only for an 18-month period that will be deemed to have commenced at the start of your severance.  You will only be entitled to receive the Insurance Benefit if you timely and properly elect continuation coverage under COBRA. If Biogen determines in its sole discretion that it cannot provide the Insurance Benefit without the possibility of violating applicable law (including, without limitation, the Patient Protection and Affordable Care Act) or it or you incurring additional taxes, including but not limited to under Section 105(h) of the Internal Revenue Code, Biogen will in lieu thereof provide to you a taxable monthly payment in an amount equal to the monthly COBRA premium that Biogen Idec would have otherwise paid under this arrangement in respect of the Insurance Benefit (which amount will be based on the premium for the first month of COBRA coverage) for the Insurance Benefit Period in equal installments in accordance with Biogen’s normal payroll practices.
General
Biogen shall administer and shall have the discretionary authority to adopt rules for the management and operation of this arrangement, to interpret the provisions of the arrangement and to construe the terms of the severance arrangement in its sole discretion. The decision of Biogen, or the duly authorized delegate, is final and conclusive for all purposes.
The severance arrangement may be amended, modified, suspended or terminated by Biogen at any time; provided that the severance arrangement may not be amended or terminated without your written consent for a period of two years following a Corporate Transaction or a Change in Control.
This arrangement is unfunded. This arrangement will benefit and bind Biogen and its successors and permitted assigns and you and your heirs, executors and legal representatives. You do not have any right to transfer or assign your benefits under this arrangement.
This arrangement shall be construed, administered and enforced according to the laws of the State of Delaware, except to the extent that such laws are preempted by the federal laws of the United States of America.

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Severance Plan for U.S. Executive Vice Presidents

Additional Summary Plan Description Information
						
	Description	This document describes 3 Plan which is subject to the Employee Retirement Income Security Act of 1974 (ERISA). This document constitutes the Summary Plan Description (SPD) and Plan Document. Benefit determinations are controlled exclusively by this SPD and Plan Document.
	Name of Plan	Severance Plan for U. S. Executive Vice Presidents
	Name and Address of Employer	Biogen Inc.
225 Binney Street, Cambridge
Massachusetts 02142
	Plan Identification Number	Employer IRS Identification #: 04-3002117 Plan #: 523
	Type of Welfare Plan	Severance
	ERISA Plan Year Ends	December 31
	Type of Administration	The Plan is administered by the Plan Administrator
	Plan Administrator, Name, Address, and Telephone Number	Biogen Inc. is the Plan Administrator and named fiduciary of the Plan, with authority to delegate its duties.
Biogen Inc.
225 Binney Street
Cambridge, Massachusetts  02142
(617) 679-3400

	Agent for Service of Legal Process on the Plan	Biogen Inc.
225 Binney Street
Cambridge, Massachusetts 02142
	Funding	This Plan is unfunded

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Severance Plan for U.S. Executive Vice Presidents

						
	Appeal Procedures	You have 180 days from your effective date of termination to file an appeal. Requests for appeals should be sent to the address specified in the claim denial. A decision on review will be made not later than 45 days following receipt of the written request for review. If the Plan Administrator determines that special circumstances require an extension of time for a decision on review, the review period may be extended by an additional 45 days (90 days in total). The Plan Administrator will notify you in writing if an additional 45 day extension is needed.
If an extension is necessary due to your failure to submit the information necessary to decide the appeal, the notice of extension will specifically describe the required information, and you will be afforded at least 45 days to provide the specified information. If you deliver the requested information within the time specified, the 45 day extension of the appeal period will begin after you have provided that information. If you fail to deliver the requested information within the time specified, the Plan Administrator may decide your appeal without that information.
You will have the opportunity to submit written comments, documents, or other information in support of your appeal. You will have access to all relevant documents as defined by applicable U.S. Department of Labor regulations. The review of the adverse benefit determination will take into account all new information, whether or not presented or available at the initial determination. No deference will be afforded to the initial determination.
The review will be conducted by the Plan Administrator and will be made by a person different from the person who made the initial determination and such person will not be the original decision maker’s subordinate.
A notice that your request on appeal is denied will contain the following information:
•The specific reason(s) for the determination;
•A reference to the specific Plan provision(s) on which the determination is based;
•A statement disclosing any internal rule, guidelines, protocol or similar criterion relied on in making the adverse determination (or a statement that such information will be provided free of charge upon request);
•A statement describing your right to bring a lawsuit under Section 502(a) of ERISA if you disagree with the decision;
•The statement that you are entitled to receive upon request, and without charge, reasonable access to or copies of all documents, records or other information relevant to the determination; and
•The statement that “You or your plan may have other voluntary alternative dispute resolution options, such as mediation. One way to find out what may be available is to contact your local U.S. Department of Labor Office and your State insurance regulatory agency”.
Notice of the determination may be provided in written or electronic form. Electronic notices will be provided in a form that complies with any applicable legal requirements.
Unless there are special circumstances, this administrative appeal process must be completed before you begin any legal action regarding your claim.

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Severance Plan for U.S. Executive Vice Presidents

						
	Your Rights Under ERISA	As a participant in this Plan, you are entitled to certain rights and protections under the Employee Retirement Income Security Act of 1974 (ERISA). ERISA provides that all Plan participants shall be entitled to:
•    Receive Information About Your Plan and Benefits
o     Examine, without charge, at the Plan Administrator’s office and at other specified locations, all documents governing the Plan, including a copy of the latest annual report (Form 5500 Series), if any, filed by the Plan with the U.S. Department of Labor and available at the Public Disclosure Room of the Employee Benefits Security Administration.
o     Obtain, upon written request to the Plan Administrator, copies of documents governing the operation of the Plan, including copies of the latest annual report (Form 5500 Series), if any, and updated Summary Plan Description.
o     The Plan Administrator may make a reasonable charge for the copies.
o     Receive a summary of the Plan’s annual financial report, if any. The Plan Administrator is required by law to furnish each participant with a copy of this summary annual report.
•    Prudent Actions by Plan Fiduciaries
o     In addition to creating rights for Plan participants, ERISA imposes duties upon the people who are responsible for the operation of the employee benefit plan. The people who operate your Plan, called “fiduciaries” of the Plan, have a duty to do so prudently and in the interest of you and other Plan participants and beneficiaries. No one, including your Employer or any other person, may fire you or otherwise discriminate against you in any way to prevent you from obtaining a benefit or exercising your rights under ERISA.

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Severance Plan for U.S. Executive Vice Presidents

						
		•    Enforce Your Rights
o     If your claim for a benefit is denied or ignored, in whole or in part, you have a right to know why this was done, to obtain copies of documents relating to the decision without charge, and to appeal any denial, all within certain time schedules.
o     Under ERISA, there are steps you can take to enforce the above rights. For instance, if you request a copy of Plan documents or the latest annual report from the Plan and do not receive them within 30 days, you may file suit in a federal court. In such a case, the court may require the Plan Administrator to provide the materials and pay you up to $110 a day until you receive the materials, unless the materials were not sent because of reasons beyond the control of the Plan Administrator.
o     If you have a claim for benefits that is denied or ignored, in whole or in part, you may file suit in a state or federal court. If it should happen that Plan fiduciaries misuse the Plan’s money, or if you are discriminated against for asserting your rights, you may seek assistance from the U.S. Department of Labor, or you may file suit in a federal court. The court will decide who should pay court costs and legal fees.  If you are successful, the court may order the person you have sued to pay these costs and fees. If you lose, the court may order you to pay these costs and fees, if, for example, it finds your claim is frivolous.
•    Assistance with Your Questions
o     If you have any questions about your Plan, you should contact the Plan Administrator. If you have any questions about this statement or about your rights under ERISA, or if you need assistance in obtaining documents from the Plan Administrator, you should contact the nearest office of the Employee Benefits Security Administration, U.S. Department of Labor, listed in your telephone directory or the Division of Technical Assistance and Inquiries, Employee Benefits Security Administration, U.S. Department of Labor, 200 Constitution Avenue N.W., Washington, D.C. 20210. You may also obtain certain publications about your rights and responsibilities under ERISA by calling the publications hotline of the Employee Benefits Security Administration.

	Other Rights	The Plan Administrator, as fiduciary for the Plan, is entitled to legal and equitable relief to enforce its right to recover any overpayments to you under this Plan. This right of recovery is enforceable but will not exceed the benefits paid you. You agree that the Plan Administrator has a lien over such sources of income until any overpayments have been recovered in full.

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Severance Plan for U.S. Executive Vice Presidents

						
	Discretionary Acts	The Plan Administrator has discretionary authority to interpret the Plan and to make benefit determinations under the Plan. The Plan Administrator may act directly or through its employees and agents or further delegate their authority through contracts, letters or other documentation or procedures to other affiliates, persons or entities.
Once you are deemed to have exhausted your appeal rights under the Plan, you have the right to seek court review under Section 502(a) of ERISA of any benefit determinations with which you disagree. The court will determine the standard of review it will apply in evaluating those decisions.

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Exhibit 10.2

July 15, 2020

Dear Michael, 

I am pleased to extend you this offer of employment to join Biogen with the job title of Executive Vice President and Chief Financial Officer.  This position will report to Michel Vounatsos, Chief Executive Officer.  Please note that neither this letter nor any other materials constitute a contract of employment with Biogen.  Your employment at Biogen is employment at-will.  This means that just as you are free to leave your employment at any time, with or without cause or notice, Biogen also has the same right to terminate your employment at any time, with or without cause or notice. The specific offer terms are listed below.

The position will be based at our Cambridge, MA facility.

Salary:  This is a full-time, exempt position and your starting annual salary will be $850,000.00, and which will be paid biweekly in accordance with our standard payroll processes. 

Sign-on Bonus:  Upon employment, you will receive $1,000,000.00 as a one-time cash bonus. The bonus will be paid to you within two pay periods after your start date provided that you sign the enclosed Cash Sign-On Bonus Agreement, which describes the terms and conditions of the cash sign-on bonus. 

Annual Bonus Plan:  You will be eligible to participate in the Biogen Annual Bonus Plan, with a target bonus opportunity of 75% your annual base salary.  Based upon your start date, your target bonus amount may be pro-rated.  Eligibility details and other terms of the Plan are included in the current year's Plan document, which will be made available upon your employment with the Company. 

Long Term Incentive Plan:  You will be provided a one-time grant of Restricted Stock Units (RSUs) and Market Stock Units (MSUs) in connection with the commencement of your employment.  The approximate grant date value of your RSU award will be $2,250,000.00 and the approximate grant date value of your MSU award will be $2,250,000.00. The number of shares granted to you will be calculated by dividing the grant date value by the closing price of Biogen stock (NASDAQ) on the grant date, with the resulting number of shares rounded to the nearest five shares.  Your RSU and MSU awards will be granted on the first trading day of the month following your start date. Both your RSU award and MSU awards will vest in three equal installments of 33 1/3% beginning on the first anniversary of the grant date. Your grant amount has been determined based upon the start date listed in this offer letter.  If your start date is delayed, the amount of the grant may decrease, the allocation of RSUs and MSUs may change, or other types of equity or non-equity benefits may be substituted for the above.

The actual terms of your RSU and MSU awards will be communicated to you following the grant date.  Your grant will be awarded under the Biogen Inc. Omnibus Equity Plan in effect at that time.  Please see your LTI Award Agreements, which will be available following your grant date, for specific details on the terms and conditions of your awards. Please read these documents for information about your Long-term Incentive grants.

Beginning in the year following your start date, we expect that you will be eligible to participate in the Biogen annual Long Term Incentive (LTI) program.  Approved awards would be made under the Biogen Inc. Omnibus Equity Plan in effect at that time. The details of the LTI awards will be subject to the approval of, and made by, the Compensation and Management Development Committee of the Board of Directors of Biogen.

Relocation: Biogen will provide relocation benefits to facilitate your ability to establish a residence in the Boston, Massachusetts area.  The relocation benefits and payments will be provided to you after you sign a U.S. Domestic Relocation Policy Acknowledgement and Relocation Repayment Agreement, which detail the terms and conditions of your relocation package and will be provided to you by our relocation service provider, Cartus Corporation.  Payments and reimbursements will be made in accordance with Biogen’s relocation policy. By signing below, you understand and agree that the position requires you to maintain a residence in the Cambridge, Massachusetts area as discussed and that relocation benefits provided to you 

by Biogen must be utilized not later than one year from hire or as soon as practicable, subject to travel restrictions or other limitations resulting from the ongoing pandemic.  

Employee Benefits:  Biogen offers a robust and highly competitive employee benefits program.  As an employee, you will be able to choose from a menu of options through our flexible benefits program.  These benefits include a 401(k) savings plan; group health care, including medical, dental, prescription drug and vision coverage; life, dependent life and disability insurance; as well as flexible spending accounts for eligible medical and dependent care expenses.  

You are also entitled to up to 20 vacation days (160 hours) per year (pro-rated if you work part-time). Additional benefit offerings include an Employee Stock Purchase Plan (ESPP) and work/life benefits such as a concierge service and access to subsidized back-up dependent care. Please visit Biogen’s Benefits website using the below link and login information to familiarize yourself with Biogen’s complete benefit plan offerings.

        URL: [website] 
Username: [username]
Password: [password]

Additional Executive Benefits

Supplemental Savings Plan:  You will be entitled to participate in Biogen’s Supplemental Savings Plan (SSP).  This plan allows you to make pre-tax deferrals of up to 80% of your base salary and up to 100% of your Annual Bonus payment and certain other eligible incentive payments.  Your contributions to this plan may be limited by your contributions towards other plans (e.g., 401(k), ESPP, medical, etc.).  You will be provided with SSP enrollment information upon your employment with the Company.

Life Insurance:  You will be provided life insurance coverage equal to three times your annual base salary, subject to meeting the medical standards stated in the group term life insurance policy for U.S. employees.  Biogen pays the premium for this insurance.  The IRS requires employers to impute the value of company-paid life insurance for coverage over $50,000.  This imputed income will be displayed on your pay stub.

Severance:  You will be entitled to severance benefits in accordance with the attached Severance Plan for U.S. Executive Vice Presidents, as it may be amended in the future from time to time, and should refer to such document for details regarding terms, conditions, eligibility and potential tax implications.

Tax & Financial Planning and Executive Physicals:  You are eligible for annual reimbursement of expenses for qualified services such as federal and state income tax planning and/or preparation, financial and estate planning services, and the purchase of tax and/or financial planning tools.  Additionally, the Company will reimburse you for the expenses of an annual comprehensive physical exam when coordinated by the Executive Health Services team at Mass. General Hospital (MGH).  The combined annual reimbursement you are eligible to receive is $7,500 per calendar year (January 1 – December 31), subject to the guidelines of the Tax & Financial Planning and Executive Physical Reimbursement Program.  The details of these benefits are available upon your employment with the Company.

Stock Trading Plan:  Upon employment with the Company, you will become subject to Biogen’s Global Insider Trading Policy, a copy of which will be provided to you. The Biogen Global Insider Trading Policy sets forth guidelines designed to promote compliance with applicable federal and state securities laws that prohibit persons who are aware of material nonpublic information about the company from trading in securities of the company or providing material nonpublic information to other persons who may trade on the basis of that information.  Upon your employment, you will be assigned, based on your job, to a specific trading group that will determine your obligations and restrictions under the policy, and you will be required to complete training on the policy.

Share Ownership Requirement:  A key objective of our long-term incentive plans is to ensure strong alignment between the interests of our senior executives and those of our stockholders.  It is expected that through our annual long-term incentive grants, you will accumulate and retain Biogen shares in an amount equivalent to 3x salary through the first 5 years of employment.

You are required to satisfy the following contingencies prior to employment at Biogen.  
    
•Pre-employment screening:  Employment at Biogen is contingent upon your successful completion and passing of both a background check and drug screen.  Biogen’s background check includes verification of employment history, educational and professional licenses, degrees and/or credentials, a criminal records check, a Social Security Number search and verification of any other professional qualifications that your position responsibilities at Biogen may warrant.  Completion of your online Application for Employment authorizes Biogen to conduct these background checks.  If you have any questions about the background check, please contact HRConnect@biogen.com. 

•Authorization to Work in the United States:  Please note that Biogen is an E-Verify employer. The Federal government requires you to provide proper identification verifying your eligibility to work in the United States.  Please complete Section 1 of the Employment Eligibility Verification Form I-9, electronically as specified in your emails from Guardian. On your first day of employment, please bring original and unexpired documents and a scanned copy of your documents to complete the I-9 process. A list of acceptable documents can be found on the last page of the Form I-9 packet.

Signed Employee Proprietary Information and Inventions and Non-Compete Agreement: Prior to and as a condition of employment with Biogen you will be required to sign Biogen’s Proprietary Information and Inventions and Non-Compete Agreement. This is required to, among other things, protect Biogen’s substantial investment in creating and maintaining its confidential and proprietary information, and to maintain goodwill with our customers, vendors and other business partners. You will receive an email shortly that contains a link to this agreement for your review and electronic signature.

Michael, we are excited at the prospect of your joining Biogen.  To confirm your acceptance of this offer of employment, please electronically sign this letter by July 17, 2020. You will be provided with a signed copy electronically for your personal records. We would anticipate your first day of employment to be October 19, 2020.  If you have any questions, please feel free to contact me.  

Best Regards,

Eileen Rivera

Cc:  Michel Vounatsos

I accept this offer of employment and acknowledge the contingencies of employment described above, including the at-will nature of my employment.

 

ACCEPTED:

   /s/ Michael McDonnell

BIOGEN CASH SIGN-ON BONUS AGREEMENT

I have accepted a position of employment with Biogen that provides for payment to me of a cash sign-on bonus of $1,000,000.00 following commencement of employment.  I understand that the full benefit of this cash sign-on bonus is conditioned upon my remaining an employee of Biogen for at least 36 months. 

I hereby accept Biogen’s offer of a cash sign-on bonus according to the following terms: 

The payment of the cash sign-on bonus by Biogen is taxable income to me and will be taxed at the time of payment. 

I acknowledge and agree that if, within 36 months of my start date, I voluntarily terminate my employment or Biogen terminates my employment For Cause, as defined in the Biogen 2017 Inc. Omnibus Equity Plan, or for misconduct or poor performance, as determined in good faith by the Company, I will not have earned the cash sign-on bonus provided to me under this Agreement and I will repay such bonus according to the following schedule: (i) if my employment terminates on or before 12 months from my start date, the full amount of the cash sign-on bonus, net of the applicable proportion of tax withholdings; (ii) if my employment terminates after 12 months and on or before 24 months from my start date, 70% of the amount of the cash sign-on bonus, net of the applicable proportion of tax withholdings; or (iii) if my employment terminates after 24 months and on or before 36 months from my start date, 35% of the amount of the cash sign-on bonus, net of the applicable proportion of tax withholdings.

I shall pay to Biogen all such repayable amounts within thirty (30) days of the effective date of my employment termination or by the end of the year in which my employment terminates, whichever comes first. I voluntarily authorize Biogen to deduct, withhold and/or retain all or any portion of the amount which I may be required to refund or repay to Biogen hereunder from any wages, salary, vacation pay, severance pay or other pay which may be due and owing to me upon termination of employment, to the extent permitted under applicable law. I shall remain liable to Biogen for any amounts in excess of the sums so deducted, withheld and/or retained by Biogen.

Except as stated above, I shall have no liability or responsibility to refund or repay to Biogen any amounts paid by Biogen to me in connection with this sign-on bonus.

Nothing in this Agreement shall alter the at-will employment relationship between Biogen and me (e.g., Biogen and I can end the employment relationship at any time with or without cause). Therefore, I understand that nothing in this Agreement guarantees that the Company will employ me for any specific period of time.

My signature below acknowledges that I have read and understand this Agreement and agree to be bound by its terms.

  /s/ Michael McDonnell            Michael McDonnell            July 16, 2020
															
	Employee Signature		Employee Name (Please Print)		Date

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