Document:

Second Amendment to the Amgen Nonqualified Deferred Compensation Plan

 Exhibit 10.18 
 SECOND AMENDMENT TO THE 
 AMGEN NONQUALIFIED DEFERRED COMPENSATION PLAN

 AS AMENDED AND RESTATED EFFECTIVE JANUARY 1, 2009 
 The Amgen Nonqualified Deferred Compensation Plan as Amended and Restated Effective January 1, 2009 (the “Plan”) is hereby amended, effective October 12, 2011, as follows: 

 

	 	1.	Section 3.1 is amended to add a subsection (d) to read as follows: 

 

	 	(d)	If a Participant received a hardship distribution from the 401(k) Plan or the 1165(e) Plan (as defined in Section 3.3) and, as a result of such hardship
distribution, the Participant is prohibited from making deferrals to the 401(k) Plan or 1165(e) Plan, as applicable, for all or any portion of any subsequent Plan Year, such Participant shall be prohibited from making any deferrals to the Plan for
such Plan Year, notwithstanding anything in Section 3.2 or 8.6 to the contrary. Any deferral for a subsequent Plan Year to which this subsection (d) does not apply must be made in accordance with Section 3.2. 

 

	 	2.	The list of Employers in Appendix A is amended and restated to read as follows: 

 Amgen Manufacturing, Limited 
 Amgen SF, LLC 

Amgen USA Inc. 

Amgen Worldwide Services, Inc. 
 BioVex, Inc. 
 Immunex Corporation 

Immunex Manufacturing Corporation 
 Immunex Rhode Island Corporation 
 To record this Second Amendment to the Plan as set forth
herein, the Company has caused its authorized officer to execute this document this 13th day of October, 2011. 
  

			
	AMGEN INC.
		
	By:	 	 /s/ Brian McNamee

		 	Brian McNamee
		 	Senior Vice President, Human ResourcesAgreement between Amgen Inc. and Mr. Anthony C. Hooper

 Exhibit 10.21 
 October 12, 2011 
 Mr. Anthony C. Hooper 

XXXXXXXXXXXX 
 XXXXXXXXXXXX 

Dear Anthony: 
 On behalf of Amgen Inc. (Amgen
or the Company), I am pleased to offer you the position of Executive Vice President, Global Commercial Operations, Level 11, reporting to Robert A. Bradway. This offer and the compensation listed are subject to your appointment by our Board of
Directors (the Board) and the Compensation and Management Development Committee (the Compensation Committee) providing final approval of the compensation listed in this letter. 
 Your salary will be paid bi-weekly in the amount of $36,538.46, with 26 pay periods in one year, subject to federal and state and other applicable tax deductions and withholdings. 

You will be entitled to a sign-on bonus of $1,000,000 less federal and state tax deductions and other applicable withholdings. This amount will be paid
30 days after you report to Amgen for full time employment (your Start Date), subject to your execution of the enclosed “Sign-On Bonus Agreement for New Hire Staff Members,” and further subject to your being actively employed by Amgen on
the payment date. The sign-on bonus must be repaid by you in full if you voluntarily resign your employment for any reason, or if Amgen terminates your employment with Cause (as defined below), at any time prior to the two year anniversary of your
Start Date, as provided in the attached Sign-On Bonus Agreement for New Hire Staff Members. 
 You will be granted as of the
Effective Grant Date (as defined below) time-vested restricted stock units (RSUs) valued at $2,475,000 (based on the average daily closing price of Amgen common stock, $.0001 par value per share (the Common Stock) for the 60 trading days immediately
preceding the Effective Grant Date. For these purposes, the Effective Grant Date shall be the day that is two business days after the date of the release of Amgen’s 2011 third quarter earnings and is expected to fall on October 27, 2011
provided you are actively employed by Amgen on that date; in the event you are not actively employed by Amgen on that date, the Effective Grant Date shall be a date that is as soon as possible after your Start Date, as determined by an award
committee, authorized by the Board in accordance with Amgen’s equity awards policy. Upon each applicable vesting date (which shall be on each of March 2, 2012; March 2, 2013; March 2, 2014 and March 2, 2015), you
will receive a number of shares of Common Stock equal to the number of RSUs that vest, less any shares that are withheld to satisfy applicable taxes. This grant will vest as to whole shares at a rate of 50% on March 2, 2012, and the
remaining 50% in equal one-thirds (1/3rd) on
March 2, 2013, on March 2, 2014 and on March 2, 2015, contingent upon your acceptance of the grant in accordance with Amgen’s grant acceptance policy and your being actively employed by Amgen through each vesting date (except as
otherwise specified in the related RSU grant agreement). No fractional shares may be awarded. 
 You will be granted on the Effective Grant Date
three awards denominated in performance units (PUs) with varying performance goals and performance periods. The first PU award shall be valued at $1,925,000 (the First PU Award), the second PU award shall be valued at $1,925,000 (the Second PU
Award) and the third PU award shall be valued at $1,925,000 (the Third PU Award). The number of PUs granted shall be based on these values and the average daily closing price of the Common Stock for the 60 trading days immediately preceding the
Effective Grant Date. The PUs shall be awarded pursuant to Amgen’s 2009 Performance Award Program, with the specific terms and performance goals as approved by the Compensation Committee (Performance Goals), and shall be contingent upon your
acceptance of the grant in accordance with Amgen’s grant acceptance policy and your being actively employed by Amgen on the Effective Grant Date. The number of PUs earned shall be determined by the extent to which Amgen achieves the
Performance Goals. In general, the Performance Goals shall be based on Amgen’s total shareholder return (TSR) compared to the 

 
average TSR of the companies in a comparator group as designated by the Compensation Committee for the specified performance period. The PUs earned shall equal the PUs granted multiplied by
the payout percentage (the Payout Percentage), derived from the comparison of Amgen’s TSR and the average TSR of the companies in the relevant comparator group for the relevant performance period, and shall be between 0% and 150% of the PUs
granted. The performance period of the First PU Award shall commence on the Effective Grant Date and end on December 31, 2012; the performance period of the Second PU Award shall commence on the Effective Grant Date and end on
December 31, 2013 and the performance period of the Third PU Award shall commence on the Effective Grant Date and end on December 31, 2014. All PUs shall be deemed earned as of the last day of the performance period (Vesting Date)
and, when the Compensation Committee has certified the extent to which the Performance Goals have been achieved and the corresponding number of PUs earned, shall be payable on or prior to the March 15th immediately following the end of the performance period, subject to
certain exceptions for delayed payment as provided under Section 409A of the Internal Revenue Code of 1986, as amended, and further subject to your being actively employed with Amgen through each Vesting Date (except as otherwise specified in
the related PU grant agreement).
 The RSUs, PUs and other equity awards will be subject to the terms and conditions set forth in the applicable
grant agreements.
 Beginning in 2012, you will be eligible to receive stock options, RSUs and/or PUs as part of Amgen’s Long-Term
Incentive (LTI) program. Grants under the LTI program are discretionary as approved by the Compensation Committee. 
 For the 2011 cash
bonus, you will be eligible to participate in Amgen’s Global Management Incentive Plan (the GMIP) pursuant to the terms of the GMIP. Your annual target incentive opportunity will be 80% of your actual base salary earned at Amgen during 2011.
Your actual GMIP bonus may be more or less than this target amount, and may vary based on Company performance and the Compensation Committee’s assessment of your individual performance and contribution. For the sake of clarity, your
target bonus opportunity is based on your actual salary for 2011 and thus it reflects a pro-ration based on the number of days you work for Amgen in 2011. You must be actively employed through the last regularly scheduled business day of a
performance year to be eligible for that year’s GMIP bonus. 
 Further, in 2012, at the earlier of ten business days after (i) the
filing of your current employer’s 2012 proxy statement or (ii) your provision of satisfactory documentation of the 2011 annual cash bonus calculations your current employer used for its Named Executive Officers (NEOs) and the amount your
current employer pays you as 2011 base salary, you shall be paid an amount equal to any difference between the bonus you would have earned for 2011 at your current employer using your annualized 2011 base salary paid by your current employer
multiplied by the bonus payout percentage based on actual financial and operational performance against objective targets at your current employer as used for its NEOs, multiplied by an individual performance factor of 1.35, less any 2011 bonus
amounts you are actually paid by your current employer and less any 2011 bonus amounts paid by Amgen as a result of your participation in the 2011 GMIP. This payment is subject to your being actively employed with Amgen on the date of payment.

 In 2012, management will nominate you for inclusion in the Amgen Executive Incentive Plan (the EIP). The EIP is the annual cash incentive
plan in which officers of the Company at your level typically participate, and inclusion is determined and approved by the Compensation Committee during the first quarter of each calendar year. Actual awards under our EIP are determined using
pre-established Company goals and results measured under our GMIP. Your annual target incentive opportunity (80% of your base salary earnings during the plan year) will not change as the result of your participation in the EIP. 

You are also eligible to participate in the Amgen Nonqualified Deferred Compensation Plan (the DCP) to voluntarily defer, on a pre-tax basis, a portion
of your annual earnings, including base salary and/or GMIP bonus. Shortly after commencing your employment at Amgen, you will receive an enrollment e-mail regarding the DCP plan for Amgen. A Q&A regarding the DCP is enclosed. 

You will be eligible to participate in the Amgen Inc. Change in Control Severance Plan as amended from time-to-time (the COC), as a Group I Participant
according to the terms of the COC. If, upon your termination, you are eligible to receive severance benefits under the COC and you are also eligible to receive severance benefits from another plan, agreement or policy, you will be paid the greater
of the amount from that plan, agreement or policy or the amount provided in the COC, but not both amounts. A copy of the COC is enclosed as Attachment 2. 

  
 2 

 If, within the first three years of your employment with Amgen, Amgen terminates your employment without
“Cause”, as defined below, you will be entitled to the benefits described in this paragraph (the Termination Paragraph), provided that you sign a general release of claims in the form furnished to you by Amgen as a condition to receipt of
such payments. The following are such benefits: (1) two (2) times the sum of (i) your annual base salary then in effect and (ii) 80% of your annual base salary then in effect paid in a lump sum as soon as administratively
practicable, but in no event later than March 15 of the year following the year in which Amgen terminates your employment and (2) if you elect continuation coverage under the Amgen group medical and dental plans for yourself and your
qualified beneficiaries under the Consolidated Omnibus Budget Reconciliation Act of 1985 (COBRA), Amgen will pay the cost of such coverage until the earlier to occur of the following: (A) eighteen (18) months following your termination of
employment or (B) the date on which you are no longer eligible for such COBRA coverage. Notwithstanding the previous sentence, with regard to such COBRA continuation coverage, if the Company determines in its sole discretion that it cannot
provide the foregoing benefit without potentially violating applicable law (including, without limitation, Section 2716 of the Public Health Service Act), the Company shall in lieu thereof provide to you a taxable monthly payment in an amount
equal to the monthly COBRA premium that you would be required to pay to continue your and your covered dependent’s group insurance coverages in effect on the date of termination (which amount shall be based on the premiums for the first month
of COBRA coverage). Please note that this Termination Paragraph does not alter the at-will nature of your employment at Amgen. For purposes of this paragraph, Amgen shall include Amgen and any Amgen’s subsidiary and affiliate companies (for the
avoidance of doubt, a transfer of employment to one of Amgen’s subsidiary or affiliate companies shall not be deemed a termination of your employment without “Cause”). 
 As an executive at Amgen, you will be eligible for the following: first-class air transportation while traveling on company business; an annual physical examination; and, reimbursement for up to $15,000
(gross) per year for financial counseling, tax preparation and related services. 
 You will also have the opportunity to participate in our
comprehensive benefits program, as in effect from time-to-time in accordance with the terms of Amgen’s plans. Amgen’s excellent health care plan currently includes medical, dental and vision coverage for you and your eligible dependents.
Amgen currently pays the major expense for these programs while staff members share through payroll deductions. Please be advised that in order for you and your dependents to be eligible for Amgen’s medical coverage you must: 

 

	 	1.	Report to work at Amgen or another location to which you are required to travel and perform the regular duties of your employment. 

 

	 	2.	Contact the Amgen Benefits Center at 1-800-97AMGEN, to enroll within 31 days of your Start Date. 

 

	 	3.	Meet all other eligibility requirements under the plan. 

 You will be eligible to participate in the Amgen Retirement and Savings Plan, which is a 401(k) plan that provides an opportunity for you to save a percentage of your pay (based on Internal Revenue
Service limits) on a tax-deferred basis. Amgen will also contribute to your 401(k) account to help you save for your future financial goals. These benefits, services and programs are summarized in the enclosed brochure called “A Guide to Total
Rewards at Amgen,” and may be changed or discontinued by Amgen from time-to-time. 
 The Company will be performing a background
check and will require you to take a drug test. It is a condition of your employment that the Company receives satisfactory results from both the background check and the drug test. 
 Enclosed and included as part of this offer (Attachment 1) is information regarding Amgen’s Proprietary Information and Inventions Agreement, the Immigration Reform & Control Act and a
packet of materials entitled “Arbitration of Disputes” which includes a Mutual Agreement to Arbitrate Claims. Provided that the basis is not related to an actual violation of these or any other agreement with Amgen, Amgen agrees to
compensate you for Specified Forfeitures and agrees to indemnify and hold you harmless against any Specified Claim, in each case valued as of the Start Date. You agree that you shall submit a claim to Amgen for any Specified Claims and
Specified Forfeitures as soon as possible upon notice of the triggering event(s). Such compensation and indemnification is subject to your being actively employed with Amgen on the date of 

  
 3 

 
payment. Also enclosed and included, as part of this offer in Attachment 1, is information regarding Amgen’s New Staff Member Letter and Certification. This offer is contingent upon you
truthfully and accurately completing the Certification, and returning it to the Company before or on your first day of employment. 
 This offer
of employment is contingent upon your completing the items described in Attachment 1 and upon your ability to perform for Amgen all of the duties of your position without restriction from, or violation of, any enforceable contractual obligations
owed to any former employer or entity for whom you worked or provided service(s). 
 Also enclosed and included, as part of this offer (Offer
Letter Benefit Summary), is information about the main points of the relocation assistance that Amgen will provide to you to relocate to the “local area.” Please note that relocation assistance is contingent upon your execution of the
enclosed “Relocation Agreement for New Hire Staff Members” and that relocation benefits are limited to one benefits package per household. In addition, you are required to reimburse Amgen for the gross amount of the cost of the relocation
benefits (according to the attached schedule) if you resign employment for any reason within two years of your Start Date. 
 You will be
contacted by a Relocation Counselor to initiate your relocation benefits within 3 business days after receipt of your signed acceptance of this offer and your signed New Hire Relocation Agreement. 

For purposes of the Termination Paragraph, “Cause” means: (i) unfitness for service, inattention to or neglect of duties, or incompetence;
(ii) dishonesty; (iii) disregard or violation of the policies or procedures of Amgen; (iv) refusal or failure to follow lawful directions of the Company; (v) illegal, unethical or immoral conduct; (vi) breach of the attached
Amgen Proprietary Information and Inventions Agreement; or (vii) any other reason set forth in California Labor Code Section 2924, in all cases, as determined by Amgen, in its sole and absolute discretion. For purposes hereof,
“Specified Claim” means any claim resulting from your work for Amgen for recoupment of previously earned or vested compensation or benefits; provided that “earned compensation” does not include any equity awards that were not
vested as of the date of the termination of your employment and were not subject to any right to acceleration upon such termination. For purposes hereof, “Specified Forfeitures” means the cancellation or forfeiture of any vested
compensation or benefit due to your work for Amgen or the denial of vesting of any compensation or benefit that would have vested upon your termination but for your work for Amgen. 
 By signing this letter, you understand and agree that your employment with Amgen is at-will. Therefore, your employment can terminate, with or without cause, and with or without notice, at any time, at
your option or Amgen’s option, and Amgen can terminate or change all other terms and conditions of your employment, with or without cause, and with or without notice, at any time. This at-will relationship will remain in effect throughout your
employment with either Amgen Inc. or any of its subsidiaries or affiliates. This letter and its enclosures constitute the entire agreement, arrangement and understanding between you and Amgen on the nature and terms of your employment with Amgen,
including, but not limited to, the kind, character and existence of your proposed job duties, the length of time your employment will last and the compensation you will receive. This letter and its enclosures supersede any prior or contemporaneous
agreement, arrangement or understanding on this subject matter. By executing this letter as provided below, you expressly acknowledge the termination of any such prior agreement, arrangement or understanding, except as referenced in this letter
and/or its enclosures. Also, by your execution of this letter, you affirm that no one has made any written or verbal statement that contradicts the provisions of this letter or its enclosures. The at-will nature of your employment, as set forth in
this paragraph, can be modified only by a written agreement signed by both Amgen’s Senior Vice President of Human Resources and you which expressly alters it. This at-will relationship may not be modified by any oral or implied agreement or by
any Company policies, practices or patterns of conduct. 
 This offer letter shall be interpreted and administered in a manner such that any
amount or benefit payable hereunder shall be paid or provided in a manner that is exempt from Section 409A of the Internal Revenue Code of 1986, as amended (together with any Department of Treasury regulations and other interpretive guidance
issued thereunder, including without limitation any such regulations or other guidance that may be issued after the date hereof, Section 409A). None of the amounts or benefits payable hereunder are intended to constitute “nonqualified
deferred compensation” within the meaning of Section 409A of the Internal Review Code of 1986, as amended. However, notwithstanding any other provision of this offer letter, if at any time

  
 4 

 
Amgen determines that any amounts or benefits payable hereunder may be subject to Section 409A, Amgen shall have the right in its sole discretion (without any obligation to do so or to
indemnify you or any other person for failure to do so) to adopt such amendments to this offer letter, or take any other actions, as Amgen determines are necessary or appropriate either for such amounts or benefits to be exempt from the application
of Section 409A or to comply with the requirements of Section 409A. 
 The complete terms of the plans, programs and policies
referenced to in this letter are set forth in their respective documents, which are maintained by the Company. The Company reserves the right to amend or terminate any of these plans, programs or policies at any time, in its sole discretion. In the
event of any difference between this offer letter and the provisions of the respective plan, program or policy document, the respective plan, program, or policy document will govern. 
 You have made an excellent impression on the staff at Amgen. We are enthusiastic about the contribution you can make, and we believe that Amgen can provide you with attractive opportunities for personal
achievement and growth. I look forward to your favorable reply by October 13, 2011. If you accept our offer, please sign and date the copy of the letter and return it in the enclosed envelope to our Staffing Department
along with the completed and signed Proprietary Information and Inventions Agreement and the Mutual Agreement to Arbitrate Claims. Please retain the original offer letter for your records. If you have any questions regarding this offer, please
contact Greg XXXXXXX at (805) 447-XXXX. 
 Sincerely, 
 

 
 Robert A. Bradway 
 President and Chief Operating Officer 
 RAB:ett 

Enclosures 
  

	
	 /s/ Anthony C. Hooper
                        10/14/2011

	Signature of
Acceptance                             Date
	
	10/26/2011
	Anticipated Start Date

  
 5 

 ATTACHMENT 1 
 In order to accept our offer you will be required to: 
  

	 	A)	Complete, date and sign the enclosed Amgen Proprietary Information and Inventions Agreement and return it with your signed offer letter. 

 

	 	B)	Sign and date the Amgen New Staff Member Letter and Certification and return it with your signed offer letter. 

 

	 	C)	Date and sign the enclosed Mutual Agreement to Arbitrate Claims and return it with your signed offer letter. 

 

	 	D)	You will be required to provide Amgen with proof of your identity and eligibility for employment per requirements of the Immigration Reform and Control Act of 1986
within 3 (three) days of hire. Information pertaining to this Act and required proof are enclosed. 

  

	 	E)	Sign and date the Consumer Disclosure and Authorization Form (Disclosure Regarding Background Check Investigation 

  
 6 

 AMGEN NEW STAFF MEMBER LETTER AND CERTIFICATION 

Welcome to Amgen (the “Company”). The Company has no need to learn and does not want any proprietary, confidential or trade secret information
that belongs to any prior employers. Please review and comply with the following instructions and policies, and execute the Certification below. 
  

	 	•	 	 Carefully read the Company’s Proprietary Information and Inventions Agreement (“PIIA”) that you have executed, and make sure that you
understand your obligations under the terms of the PIIA. 

  

	 	•	 	 You may not bring any material to the Company from your prior employers in hard copy, in electronic format or in any other form.

  

	 	•	 	 Prior to commencing any work for the Company, conduct a search of your personal computer(s), email accounts, and any other electronic storage devices
you possess, as well as any files you maintain in hard copy, for information or materials belonging to your prior employers. You are instructed to destroy, delete or return any such information or materials belonging to your prior employers,
consistent with any obligations you have to the prior employers. 

  

	 	•	 	 Do not disclose to or provide the Company with any customer lists you obtained from or during your employment with your prior employers. When
interacting with doctors or other members of the healthcare industry with whom you may have had contact in connection with any of your prior employment, clearly indicate to such persons that you are an Amgen staff member, and focus on the
Company’s products rather than using or discussing information related to your prior employment. 

  

	 	•	 	 If you have any doubts regarding whether you may take, disclose, upload, access, or use any information in your possession, you must err on the side of
not taking, disclosing, uploading, accessing or using the information. 

  

	 	•	 	 Do not begin any work for the Company before your employment with your prior employers has officially ended. 

 

	 	•	 	 After commencing work for the Company, do not request that any employee of your prior employers provide you with, or take any other steps to obtain,
any information of your prior employers. 

  

	 	•	 	 Under no circumstances are you permitted to connect to a Company computer any electronic storage device containing information relating to your prior
employers. Likewise, in performing work for the Company, you are not permitted to use, disclose, access or upload any such information. If you discover that any confidential, proprietary, or trade secret information of your prior employers has been
uploaded to any Company computer or email system(s), immediately inform Human Resources. 

  

	 	•	 	 The Company may monitor and/or conduct an audit of your use of Company computer systems, and you should not have any expectation of privacy in data
sent, stored or received on any Company systems. 

 Disclose and identify below all agreements relating to your current or
prior employment that may affect your eligibility to become employed by and/or to perform work for the Company, including non-competition agreement(s), agreements relating to the solicitation of employees or customers, or other restrictive
agreements (collectively, “Restrictive Agreements”), regardless of whether you believe these agreements are enforceable, or apply to your potential employment with the Company, or have expired, and provide a copy to Human Resources. If
“none,” please so indicate. Do not leave blank. 

  
 7 

  

									
	 Name of Agreement
	  	 	  	 Employer
	  	 	  	 Date signed

					
	 PSU, Restricted Stock and
	  		  	 BMS
	  		  	 2007 - 2011

					
	 Annual Stock Option allocations
	  		  	  
	  		  	  

					
	(Attach additional sheets, if necessary)	  		  		  		  	

  

	 	•	 	 If you are subject to an agreement not to solicit employees of your prior employers, you should refrain from doing so. If you are contacted by a former
colleague about employment opportunities with the Company, you should refer such inquiries/candidates to Amgen’s Staffing Department. 

  

	 	•	 	 Do not use any email account (including Company email accounts), text messages, Instant Messaging, or any other method of written communication to
store or discuss information relating to your prior employers or to recruit or solicit employees of your former employers. 

  

	 	•	 	 Immediately inform your Human Resources Business Partner if you are contacted by any former employer regarding your work for Amgen and/or any
non-competition agreements, agreements that relate to the solicitation of employees or customers, or any other restrictive agreements you entered into in connection with any previous employment. 

CERTIFICATION 
 I
understand that the above list is only a summary and does not purport to include all of my continuing obligations to the Company. By signing below I certify that I have and will continue to comply with the above instructions and policies.

 I hereby agree that the Company may, at its sole option and discretion contact my prior employer(s) to determine whether any Restrictive
Agreements exist and, if so, their applicable terms. I acknowledge that the Company may revoke its offer or terminate my employment if it determines in its reasonable business judgment that I have failed to disclose or am otherwise subject to an
enforceable Restrictive Agreement. 
 Nothing in this Letter and Certification is intended to alter, or shall have any impact on, my status as
an at-will employee of the Company. In addition to its right to terminate my employment, the Company shall have the right to suspend me from work without pay during its investigation into the existence and/or enforceability of any restrictions on my
ability to perform work for the Company. 
 I agree: 
  

	
	 /s/ Anthony C. Hooper

	Signature of Staff Member
	
	 Anthony C. Hooper 

	Print Name of Staff Member
	
	 10/14/2011

	Date

  
 8 

 AMGEN SIGN-ON BONUS AGREEMENT 

FOR 
 NEW
HIRE STAFF MEMBERS 
 I, Anthony C. Hooper, agree to accept my sign-on bonus payment (“Bonus”) from Amgen on the following
terms. 
  

	1.	The amount of the Bonus is described in the offer letter (as may be amended) provided separately to me. 

 

	2.	The Bonus will generally be paid to me after thirty (30) days following the date on which I report to Amgen for full time employment with Amgen. If I am not still
employed as of the date the Bonus is to be paid, the Bonus will not be paid either in part or in full. 

  

	3.	The Bonus is intended to facilitate my acceptance of employment with Amgen. While the Bonus is provided by Amgen in its business interests as part of its employee
recruitment program, I acknowledge that the Bonus is not reimbursable to me as a matter of law under California Labor Code section 2802 or any similar statute. 

 

	4.	Amgen is providing me with the Bonus with the expectation that I will not in the short term resign my employment. I understand and acknowledge that the bonus is being
given for purposes of retention and conditioned upon my continued service for at least two years of active employment following the start date of my employment with Amgen. While, as an at-will employee, I am free to resign at any time, I agree to
reimburse Amgen for the gross amount of my Bonus if I resign my employment for any reason within two years of the start date of my employment. Amgen is also providing the Bonus with the expectation that there will not occur a termination for Cause
(as defined below). Thus, I agree to reimburse Amgen for the gross amount of my Bonus if my employment is terminated by Amgen for Cause within two years of the start date of my employment. I also agree that in the event of such a resignation or
termination for Cause, the amount to be reimbursed shall be due in full and payable by me immediately in cash (i.e., by check, wire transfer, or similar immediate payment) without further notice or demand by Amgen, and that Amgen shall have the
right to offset against compensation then owing to me. Additionally, any Bonus monies that were to be paid at an agreed upon future date but have not yet been paid are not earned and are forfeited upon resignation or termination from the company.

 For these purposes, “Cause” means (i) unfitness for service, inattention to or neglect of duties,
or incompetence; (ii) dishonesty; (iii) disregard or violation of the policies or procedures of Amgen; (iv) refusal or failure to follow lawful directions of the Company; (v) illegal, unethical or immoral conduct;
(vi) breach of the attached Amgen Proprietary Information and Inventions Agreement; or (vii) any other reason set forth in California Labor Code Section 2924, in all cases, as determined by Amgen, in its sole and absolute discretion.

  

	5.	Generally, a new hire sign-on bonus is considered ordinary wage income to the recipient. I understand that Amgen will report to appropriate federal and state taxing
authorities all income that Amgen considers to be subject to taxation and will withhold appropriate taxes in accordance with federal and state regulations. I understand that it is my obligation to declare all income and pay all taxes owed on such
income, if any. 

  

	6.	In the event that I fail to reimburse Amgen for my Bonus as required by this agreement and Amgen initiates proceedings to recover such Bonus, the prevailing party in
such a suit shall be awarded its reasonable costs and attorney’s fees. 

  

	7.	I understand that this agreement shall be governed by the law of the State of California. 

 

	8.	Nothing in this agreement will be construed as an employment contract or to guarantee me employment at Amgen for any fixed term. I understand that my employment at
Amgen is at will. 

  

	9.	The provisions of this agreement are severable. If any part is found to be unenforceable, all other provisions shall remain fully valid and enforceable.

  

					
	I agree:	 	 	 	Amgen Inc:
			
	 /s/ Anthony C. Hooper
	 		 	 /s/ Amie Krause

	Signature of Staff Member	 		 	Signature of Authorized Representative
			
	 Anthony C. Hooper
	 		 	 Senior Staffing Manager

	Print Name of Staff Member	 		 	Title of Representative
			
	 10/14/2011
	 		 	 10/18/2011

	Date	 		 	Date

  
 9 

 AMGEN RELOCATION AGREEMENT 

FOR 
 NEW
HIRE STAFF MEMBERS 
 I, Anthony C. Hooper, agree to accept certain relocation benefits from Amgen on the following terms. 

 

	1.	The relocation benefits to be provided to me are outlined in the Amgen Relocation Policy that applies to staff members at my grade level. 

 

	2.	I will obtain relocation benefits from Amgen by following the procedures outlined in the Amgen Relocation Policy that applies to staff members at my grade level.

  

	3.	I understand that I may obtain an estimate of my relocation costs from Amgen/Amgen’s third-party relocation vendor and that the actual cost of my relocation may be
more or less than the estimate I am provided. I further understand that I can obtain detailed information about the actual services and costs being incurred during my relocation by contacting Amgen/Amgen’s third-party relocation vendor.

  

	4.	The relocation benefits are to facilitate my move as a result of my decision to accept an offer of employment with Amgen. I acknowledge that the cost of these benefits
is not required to be reimbursed to me as a matter of law under California Labor Code section 2802 or any similar statute. 

  

	5.	Amgen provides the relocation benefits with the expectation that I will not in the short term resign my employment. I understand and acknowledge that the relocation
benefits are being given for purposes of retention and are conditioned upon my continued service through 730 days of active employment from the start date of my employment with Amgen. While, as an at-will employee, I am free to resign at any time, I
agree to reimburse Amgen for the gross amount of the cost of the relocation benefits (according to the schedule below) if I resign my employment for any reason within 730 days of the date I report to Amgen for full time employment. Upon my
resignation, the amount to be reimbursed shall be immediately due and payable by me without further notice or demand, and that Amgen shall have the right to offset against compensation then owing to me. The schedule for reimbursement is as follows:

  

					
	 Days Since Start Date
	  	% of Gross Cost of Relocation Benefits to be
Reimbursed to Amgen	 
	 0 to 365 days
	  	 	100	% 
	 366- 450 days
	  	 	  75	% 
	 451 - 540 days
	  	 	  50	% 
	 541 - 730 days
	  	 	  25	% 
	 Over 730 days
	  	 	    0	% 

  

	6.	I understand that Amgen will report to federal and state taxing agencies all income that Amgen considers to be subject to taxation. I understand that it is my
obligation to declare all income and pay all taxes owed on such income, if any. 

  

	7.	In the event that I fail to make a reimbursement required by this agreement and Amgen initiates proceedings to recover such reimbursement, the prevailing party in such
a suit shall be awarded its reasonable costs and attorney’s fees. 

  

	8.	I understand that this agreement shall be governed by the law of the State of California. 

 

	9.	Nothing in this agreement will be construed as an employment contract or to guarantee me employment at Amgen for any fixed term. I understand that my employment at
Amgen is at will. Nor does this agreement guarantee me reimbursement of any particular relocation expenses. I understand that reimbursement is governed by the Amgen Relocation Policy and that I must comply with the procedures in that policy.

  

	10.	The provisions of this agreement are severable. If any part is found to be unenforceable, all other provisions shall remain fully valid and enforceable.

  

					
	I agree:	 	 	 	Amgen Inc:
			
	 /s/ Anthony C. Hooper
	 		 	 /s/ Amie Krause

	Signature of Staff Member	 		 	Signature of Authorized Representative
			
	 Anthony C. Hooper
	 		 	 Senior Staffing Manager

	Print Name of Staff Member	 		 	Title of Representative
			
	 10/14/2011
	 		 	10/18/2011
	 Date
	 		 	Date

  
 10 

 ATTACHMENT 2 
 AMGEN INC. 
 CHANGE OF CONTROL SEVERANCE PLAN 

AMGEN INC., a Delaware corporation, has established this Change of Control Severance Plan, as amended and restated, effective as of December 9,
2010, as subsequently amended effective March 2, 2011 (the “Plan”) for the benefit of certain key employees of Amgen Inc. and Covered Subsidiaries (as defined below). 

The purposes of the Plan are as follows: 
  

	 	(1)	To reinforce and encourage the continued attention and dedication of members of the Company’s management to their assigned duties without the distraction arising
from the possibility of a change of control of the Company; 

  

	 	(2)	To enable and encourage the Company’s management to focus their attention on obtaining the best possible deal for the Company’s stockholders and to make an
independent evaluation of all possible transactions, without being influenced by their personal concerns regarding the possible impact of various transactions on the security of their jobs and benefits; and 

 

	 	(3)	To provide severance benefits to any Participant (as defined below) who incurs a termination of employment under the circumstances described herein within a certain
period following a Change of Control (as defined below). 

  

	 	1.	Defined Terms. For purposes of the Plan, the following terms shall have the meanings indicated below: 

 

	 	(A)	“Accountants” shall mean the Company’s independent registered public accountants serving immediately prior to the Change of Control; provided,
however, that in the event that the Accountants are also serving as accountant or auditor for the individual, entity or group effecting the Change of Control, the Administration Committee shall appoint another nationally recognized public
accounting firm to make the calculations required hereunder (which accounting firm shall then be referred to as the Accountants hereunder). 

  

	 	(B)	“Administration Committee” shall mean the committee which is responsible for administering the Plan, as described in Section 3(A) hereof.

  

	 	(C)	“Amgen Retirement Savings Plan” shall mean the Amgen Retirement and Savings Plan, As Amended and Restated Effective January 1, 2010, or any
successor plan. 

  

	 	(D)	“Amgen Supplemental Retirement Plan” shall mean the Amgen Inc. Supplemental Retirement Plan, Amended and Restated Effective January 1, 2009, or
any successor plan. 

  

	 	(E)	“Benefits Continuation Period” shall mean the earlier to occur of (i) the expiration of a Participant’s eligibility for coverage under COBRA,
and (ii) the expiration of the eighteen (18) month period immediately following the Participant’s Date of Termination. 

  

	 	(F)	“Benefits Multiple” shall mean (i) with respect to each Group I Participant, two (2), (ii) with respect to each Group II Participant, two
(2), and (iii) with respect to each Group III Participant, one (1). 

  
 11 

	 	(G)	“Board” shall mean the Board of Directors of the Company. 

 

	 	(H)	“Cash Severance Payment” shall mean a lump sum cash payment in an amount equal to the product of (x) the Participant’s Benefits Multiple, and
(y) the sum of (i) the Participant’s annual base salary as in effect immediately prior to the Date of Termination or, if higher, as in effect immediately prior to the Change of Control, plus (ii) the Participant’s targeted
annual bonus for the year in which such Date of Termination occurs (determined as the product of the Participant’s annual base salary and the Participant’s target annual bonus percentage, each as in effect immediately prior to the Date of
Termination or, if higher, as in effect immediately prior to the Change of Control). 

  

	 	(I)	“Cause,” with respect to any Participant, shall mean (i) the Participant’s conviction of a felony, or (ii) the engaging by the
Participant in conduct that constitutes willful gross neglect or willful gross misconduct in carrying out the Participant’s duties, resulting, in either case, in material economic harm to the Company, unless the Participant believed in good
faith that such conduct was in, or not contrary to, the best interests of the Company. For purposes of clause (ii) above, no act, or failure to act, on the Participant’s part shall be deemed “willful” unless done, or omitted to
be done, by the Participant not in good faith. 

  

	 	(J)	A “Change of Control” of the Company shall be deemed to have occurred at any of the following times: 

 

	 	(i)	upon the acquisition (other than from the Company) by any person, entity or “group,” within the meaning of Section 13(d)(3) or 14(d)(2) of the Exchange
Act (excluding, for this purpose, the Company or its affiliates, or any employee benefit plan of the Company or its affiliates which acquires beneficial ownership of voting securities of the Company), of beneficial ownership (within the meaning of
Rule 13d-3 promulgated under the Exchange Act) of fifty percent (50%) or more of either the then outstanding shares of Common Stock or the combined voting power of the Company’s then outstanding voting securities entitled to vote generally
in the election of directors; or 

  

	 	(ii)	at the time individuals who, as of December 9, 2010, constitute the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority
of the Board, provided, that any person becoming a director subsequent to December 9, 2010, whose election, or nomination for election by the Company’s stockholders, was approved by a vote of at least a majority of the directors
then comprising the Incumbent Board (other than an election or nomination of an individual whose initial assumption of office is in connection with an actual or threatened election contest relating to the election of the directors of the Company)
shall be, for purposes of the Plan, considered as though such person were a member of the Incumbent Board; or 

  

	 	(iii)	immediately prior to the consummation by the Company of a reorganization, merger, consolidation, (in each case, with respect to which persons who were the stockholders
of the Company immediately prior to such reorganization, merger or consolidation do not, immediately thereafter, own more than fifty percent (50%) of the combined voting power entitled to vote generally in the election of directors of the
reorganized, merged or consolidated company’s then outstanding voting securities) or a liquidation or dissolution of the Company or the sale of all or substantially all of the assets of the Company; or 

 

	 	(iv)	the occurrence of any other event which the Incumbent Board in its sole discretion determines constitutes a Change of Control. 

  
 12 

	 	(K)	“Change of Control Period” shall mean the period beginning on the date of a Change of Control and ending on the second anniversary of such Change of
Control. 

  

	 	(L)	“COBRA” shall mean the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended. 

 

	 	(M)	“Code” shall mean the Internal Revenue Code of 1986, as amended from time to time. 

 

	 	(N)	“Common Stock” shall mean the common stock of the Company, par value $0.0001 per share. 

 

	 	(O)	“Company” shall mean Amgen Inc., a Delaware corporation, and, except in determining under Section 1(J) hereof whether or not any Change of Control
of the Company has occurred, shall include any successor to its business and/or assets. “Company” shall exclude any disregarded entity pursuant Treasury Regulations section 301.7701-3, unless the Plan is amended to designate the
disregarded entity’s employees as Participants. 

  

	 	(P)	“Compensation Committee” shall mean the Compensation and Management Development Committee of the Board. 

 

	 	(Q)	“Confidential Information” shall mean information disclosed to the Participant or known by the Participant as a consequence of or through his or her
relationship with the Company, about the customers, employees, business methods, public relations methods, organization, procedures or finances, including, without limitation, information of or relating to customer lists, of the Company and its
affiliates. 

  

	 	(R)	“Covered Subsidiaries” shall mean those Subsidiaries of the Company which are incorporated in any of the fifty states of the United States or the
District of Columbia, except as otherwise determined in writing by the Administration Committee in its sole discretion and designated on Annex A attached hereto as maintained by the Administration Committee. 

 

	 	(S)	“Date of Termination” shall mean with respect to any purported termination of a Participant’s employment (other than by reason of the
Participant’s death), (i) if the Participant’s employment is terminated for Disability, the date upon which a Notice of Termination is given, and (ii) if the Participant’s employment is terminated for any other reason,
whether voluntarily or involuntarily, the date that the Participant’s employment terminates, as specified in the Notice of Termination (which shall be within sixty (60) days from the date such Notice of Termination is given).

  

	 	(T)	“Disability” shall be determined in accordance with the Company’s long-term disability plan as in effect immediately prior to a Change of Control.

  

	 	(U)	“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended from time to time. 

  
 13 

	 	(V)	“Good Reason,” with respect to any Participant, shall mean the occurrence (without the Participant’s express written consent) of any of the
following conditions, but only if (1) the Participant provides written notice to the Company of the existence of the condition within thirty (30) days of the initial existence of the condition; (2) the Company fails to remedy the
condition within the thirty (30)-day period following the Company’s receipt of the notice delivered pursuant to clause (1); and (3) the Participant actually terminates employment within thirty (30) days following the expiration of the
thirty (30)-day period described above in clause (2): 

 (i) any adverse and material diminution in the
Participant’s authority, duties or responsibilities as they existed immediately prior to the Change of Control or as the same may be increased from time to time thereafter; 

(ii) the Company’s material reduction of the Participant’s annual base salary as in effect immediately prior to the Change of
Control; 
 (iii) relocation of the Company’s offices at which the Participant is employed immediately prior to the Change
of Control which increases the Participant’s daily commute by more than one-hundred (100) miles on a round trip basis; or 
 (iv) any other action or inaction by the Company that constitutes a material breach of the agreement under which the Participant provides services. 

A Participant’s right to terminate his or her employment for Good Reason shall not be affected by the Participant’s incapacity
due to physical or mental illness. 
  

	 	(W)	“Group I Participants” shall mean those staff members of the Company, who hold the title of senior vice president or equivalent and above, and any
other senior executive-level staff members of the Company and the Covered Subsidiaries whom the Administration Committee has designated as Group I Participants, as such group shall be constituted immediately prior to a Change of Control. At or
before the occurrence of a Change of Control, the Company shall notify the Group I Participants in writing of their status as Participants in the Plan. 

  

	 	(X)	“Group II Participants” shall mean those management-level staff members of the Company and the Covered Subsidiaries at Level 8 or equivalent and above
and who are not Group I Participants, as such group shall be constituted immediately prior to a Change of Control. At or before the occurrence of a Change of Control, the Company shall notify the Group II Participants in writing of their status as
Participants in the Plan. 

  

	 	(Y)	“Group III Participants” shall mean those management-level staff members of the Company and the Covered Subsidiaries at Level 7 or equivalent, as such
group shall be constituted immediately prior to a Change of Control. At or before the occurrence of a Change of Control, the Company shall notify the Group III Participants in writing of their status as Participants in the Plan.

  

	 	(Z)	“Notice of Termination” shall mean a notice which shall indicate the specific termination provision in the Plan relied upon and shall set forth in
reasonable detail the facts and circumstances claimed to provide a basis for termination of the Participant’s employment under the provision so indicated. 

 

	 	(AA)	“Participants” shall mean, collectively, the Group I Participants, the Group II Participants and the Group III Participants. 

 

	 	(BB)	“Proprietary Information Agreement” shall mean the Company’s form of Proprietary Information and Inventions Agreement in the form in effect
immediately prior to a Change of Control. 

  

	 	(CC)	“Subsidiary” shall mean any entity (other than the Company), in an unbroken chain of entities beginning with the Company if each of the entities other
than the last entity in the unbroken chain beneficially owns, at the time of the determination, securities or interests representing more than fifty percent (50%) of the total combined voting power of all classes of securities or interests in
one of the other entities in such chain. 

  
 14 

	 	2.	Effective Date and Term of Plan. The Plan, as amended and restated, shall be effective as of December 9, 2010 and shall continue in effect through
December 31, 2014; provided, however, that commencing on December 31, 2014 and on each December 31 thereafter, the Plan shall automatically be extended for one additional year by adding one year to the last day of the term as
then in effect unless, not later than November 30 of such year, the Company shall have given notice to the Participants that the term of the Plan will not be extended; provided, further, that if a Change of Control occurs during the
original or any extended term of the Plan, the term of the Plan shall continue in effect for a period of not less than twenty-four (24) months beyond the month in which such Change of Control occurred. 

 

	 	3.	Administration. 

  

	 	(A)	The Plan shall be interpreted, administered and operated by the Compensation Committee, except that if the Compensation Committee determines that a Change of Control is
likely to occur, the Compensation Committee shall appoint a person or group of persons who shall constitute the Administration Committee after the occurrence of the Change of Control, which Administration Committee shall have the power to interpret,
administer and operate the Plan after the occurrence of the Change of Control. The Administration Committee shall have complete authority, in its sole discretion subject to the express provisions of the Plan, to determine who shall be a Participant,
to interpret the Plan, to prescribe, amend and rescind rules and regulations relating to it, and to make all other determinations necessary or advisable for the administration of the Plan. The Administration Committee may delegate any of its duties
hereunder to such person or persons from time to time as it may designate. 

  

	 	(B)	All expenses and liabilities which members of the Administration Committee incur in connection with the administration of the Plan shall be borne by the Company. The
Administration Committee may employ attorneys, consultants, accountants, appraisers, brokers, or other persons in connection with such administration, and the Administration Committee, the Company and the Company’s officers and directors shall
be entitled to rely upon the advice, opinions or valuations of any such persons. No member of the Compensation Committee, the Administration Committee or the Board shall be personally liable for any action, determination or interpretation made in
good faith with respect to the Plan, and all members of the Compensation Committee, the Administration Committee and the Board shall be fully protected by the Company in respect of any such action, determination or interpretation.

  

	 	4.	Benefits Provided. 

  

	 	4.1	Termination After Change of Control. If a Participant’s employment is terminated during a Change of Control Period (a) by the Company other than for
Cause or Disability, or (b) by the Participant for Good Reason, the Company shall pay the Participant the amounts, and provide the Participant with the benefits, described in this Section 4.1. 

 

	 	(A)	Cash Severance Payment. In lieu of any further salary payments to the Participant for periods subsequent to the Date of Termination and in lieu of any severance
benefit otherwise payable to the Participant (other than accrued vacation and similar benefits otherwise payable upon termination of employment pursuant to Company policies and programs), the Company shall pay to the Participant the Cash Severance
Payment. 

  

	 	(B)	 Benefits. Subject to subsection (B) of Section 11.6 hereof, if, as a result of the Participant’s termination of employment, the
Participant becomes entitled to, and timely 

  
 15 

	 	
elects to continue, health care (including any applicable vision benefits) and/or dental coverage under COBRA, the Company shall provide the Participant and his or her dependents with
Company-paid group health and dental insurance continuation coverage under COBRA during the Benefits Continuation Period. 

  

	 	(C)	The Company shall pay to the Participant any earned but unpaid portion of the Participant’s base salary as of the Date of Termination at the rate in effect at the
time Notice of Termination is given, plus all other amounts to which the Participant is entitled under any compensation plan or practice of the Company at the time such payments are due. 

 

	 	(D)	The Participant shall be fully vested in his or her accrued benefits under the Amgen Retirement Savings Plan and the Amgen Supplemental Retirement Plan, as applicable.
The Company shall provide the Participant with either, in the Company’s sole discretion, a lump-sum cash payment or a contribution to the Amgen Supplemental Retirement Plan, in an amount equal to the sum of (1) the product of $2,500 and
the Benefits Multiple and (2) the product of (x) 0.10, (y) the sum of (i) the Participant’s annual base salary as in effect immediately prior to the Date of Termination or, if higher, as in effect immediately prior to the
Change of Control, plus (ii) the Participant’s targeted annual bonus for the year in which such Date of Termination occurs (determined as the product of the Participant’s annual base salary and the Participant’s target annual
bonus percentage, each as in effect immediately prior to the Date of Termination or, if higher, as in effect immediately prior to the Change of Control) and (z) the Benefits Multiple. Subject to subsection (B) of Section 11.6 hereof,
payment under this Section 4.1(D) will be made within 45 days (or as soon thereafter as is administratively practicable) after the Date of Termination, but in no event more than two and one-half months after the end of the calendar year in
which the Date of Termination occurs. 

  

	 	(E)	In any situation where under applicable law the Company has the power to indemnify (or advance expenses to) the Participant in respect of any judgments, fines,
settlements, loss, cost or expense (including attorneys’ fees) of any nature related to or arising out of the Participant’s activities as an agent, employee, officer or director of the Company or in any other capacity on behalf of or at
the request of the Company, the Company shall promptly on written request, indemnify (and advance expenses to) the Participant to the fullest extent permitted by applicable law. Such agreement by the Company shall not be deemed to impair any other
obligation of the Company respecting the Participant’s indemnification otherwise arising out of this or any other agreement or promise of the Company or under any statute. 

 

	 	(F)	For the four (4) year period immediately following the Date of Termination, the Company shall furnish each Participant who was a director and/or officer of the
Company at any time prior to the Date of Termination with directors’ and/or officers’ liability insurance, as applicable, insuring the Participant against insurable events which occur or have occurred while the Participant was a director
or officer of the Company, such insurance to have policy limits aggregating not less than the amount in effect immediately prior to the Change of Control, and otherwise to be in substantially the same form and to contain substantially the same
terms, conditions and exceptions as the liability insurance policies provided for officers and directors of the Company in force from time to time, provided, however, that if the aggregate annual premiums for such insurance at any time during
such period exceed one hundred and fifty percent (150%) of the per annum rate of premium currently paid by the Company for such insurance, then the Company shall provide the maximum coverage that will then be available at an annual premium
equal to one hundred and fifty percent (150%) of such rate. 

  
 16 

 4.2 
  

	 	(A)	All calculations required to be made under Section 4.1 hereof, including the amount of the Cash Severance Payment and the assumptions to be utilized in arriving at
such calculations shall be made by the Accountants. The Accountants shall provide the Participant and the Company with detailed supporting calculations with respect to such calculations at least fifteen (15) business days prior to the date of
the Change of Control (or as soon as practicable in the event that the Accountants have less than fifteen (15) business days advance notice of the potential occurrence of the Change of Control) with respect to the impact of any payment which
will be made to the Participant before, at or immediately after the Change of Control and from time to time thereafter to the extent that the Participant may become entitled to receive any additional payments or benefits which would affect the
amount of any “excess parachute payments” within the meaning of Section 280G(b)(1) of the Code payable to the Participant in order that the Participant may determine whether it is in the best interest of the Participant to waive the
receipt of any or all amounts which may constitute “excess parachute payments.” Any calculation by the Accountants shall be binding upon the Company and the Participant. All fees and expenses of the Accountants under this Section 4.2
shall be borne solely by the Company. 

  

	 	(B)	Notwithstanding any other provision of this Plan, in the event that any payment or benefit received or to be received by the Participant, including any payment or
benefit received in connection with a termination of the Participant’s employment, whether pursuant to the terms of this Plan or any other plan, arrangement or agreement, (all such payments and benefits, including the payments and benefits
under Section 4 hereof, being hereinafter referred to as the “Total Payments”) would be subject (in whole or part), to the excise tax imposed under Section 4999 of the Code (the “Excise Tax”), then, after
taking into account any reduction in the Total Payments provided by reason of Section 280G of the Code in such other plan, arrangement or agreement, the payments under this Plan shall be reduced in the order specified below, to the extent
necessary so that no portion of the Total Payments is subject to the Excise Tax but only if (i) the net amount of such Total Payments, as so reduced (and after subtracting the net amount of federal, state and local income taxes on such reduced
Total Payments and after taking into account the phase out of itemized deductions and personal exemptions attributable to such reduced Total Payments) is greater than or equal to (ii) the net amount of such Total Payments without such reduction
(but after subtracting the net amount of federal, state and local income taxes on such Total Payments and the amount of Excise Tax to which the Participant would be subject in respect of such unreduced Total Payments and after taking into account
the phase out of itemized deductions and personal exemptions attributable to such unreduced Total Payments). The payments and benefits under this Plan shall be reduced in the following order: (A) reduction of any cash severance payments
otherwise payable to the Participant that are exempt from Section 409A of the Code; (B) reduction of any other cash payments or benefits otherwise payable to the Participant that are exempt from Section 409A of the Code, but excluding
any payments attributable to any acceleration of vesting or payments with respect to any equity award that are exempt from Section 409A of the Code; (C) reduction of any other payments or benefits otherwise payable to the Participant on a
pro-rata basis or such other manner that complies with Section 409A of the Code, but excluding any payments attributable to any acceleration of vesting and payments with respect to any equity award that are exempt from Section 409A of the
Code; and (D) reduction of any payments attributable to any acceleration of vesting or payments with respect to any equity award that are exempt from Section 409A of the Code, in each case beginning with payments that would otherwise be
made last in time. 

  

	 	(C)	 For purposes of determining whether and the extent to which the Total Payments will be subject to the Excise Tax, (i) no portion of the Total
Payments the receipt or enjoyment of which the Executive shall have waived at such time and in such manner as not to constitute a “payment” within the meaning of Section 280G(b) of the Code shall be taken into account; (ii) no
portion of the Total Payments shall be taken into account which, in 

  
 17 

	 	
the written opinion of the Accountants, does not constitute a “parachute payment” within the meaning of Section 280G(b)(2) of the Code (including by reason of
Section 280G(b)(4)(A) of the Code) and, in calculating the Excise Tax, no portion of such Total Payments shall be taken into account which, in the opinion of the Accountants, constitutes reasonable compensation for services actually rendered,
within the meaning of Section 280G(b)(4)(B) of the Code, in excess of the Base Amount (as defined in Section 280G(b)(3) of the Code) allocable to such reasonable compensation; and (iii) the value of any non-cash benefit or any
deferred payment or benefit included in the Total Payments shall be determined by the Accountants in accordance with the principles of Sections 280G(d)(3) and (4) of the Code. 

 

	 	4.3	Subject to subsection (B) of Section 11.6 hereof, the cash payments provided in subsections (A), (C) and (D) of Section 4.1 hereof shall be
made by the fifth (5th) day following the receipt by the Participant of the Accountants’ calculation, but in no event later than March 15 of the calendar year following the calendar year in which the Participant’s employment is
terminated. As a result of uncertainty in the application of Section 280G and Section 4999 of the Code at the time of the initial calculation by the Accountants hereunder, it is possible that the Cash Severance Payment made by the Company
will have been less than the Company should have paid pursuant to Section 4.1(A) hereof, as the case may be (the amount of any such deficiency, the “Underpayment”) or more than the Company should have paid pursuant to
Section 4.1(A) hereof, as the case may be (the amount of any such overage, the “Overpayment”). In the event of an Underpayment, the Company shall pay the Participant the amount of such Underpayment (together with interest at 120% of
the rate provided in Section 1274(b)(2)(B) of the Code) not later than five (5) business days after the amount of such Underpayment is subsequently determined, provided, however, such Underpayment shall not be paid later than the
end of the calendar year following the calendar year in which the Participant remitted the related taxes. In the event of an Overpayment, the amount of such Overpayment shall constitute a loan by the Company to the Participant, payable not later
than five (5) business days after the amount of such Overpayment is subsequently determined (together with interest at 120% of the rate provided in Section 1274(b)(2)(B) of the Code). 

 

	 	4.4	At the time that any payments are made under the Plan, the Company shall provide the Participant with a written statement setting forth the manner in which such
payments were calculated and the basis for such calculations including, without limitation, any opinions or other advice the Company has received from its counsel, the Accountants or other advisors or consultants (and any such opinions or advice
which are in writing shall be attached to the statement). 

  

	 	5.	Termination Procedures. 

  

	 	5.1	Notice of Termination. Any purported termination of a Participant’s employment following a Change of Control (other than by reason of death) shall be
communicated by written Notice of Termination from one party to the other party in accordance with Section 8 hereof. Further, no termination for Cause shall be effective without (a) reasonable notice to the Participant setting forth the
reasons for the Company’s intention to terminate which specifies the particulars thereof in detail, and (b) in the case of clause (ii) of the definition of Cause above, an opportunity for the Participant to cure such Cause within
twenty (20) days after receipt of such notice. With respect to the Group I Participants, the Notice of Termination must include a written statement that a majority of the entire membership of the Board has determined that the Participant was
guilty of the conduct constituting Cause. With respect to Group II Participants and Group III Participants, the Notice of Termination must include a written statement by one of the Participant’s direct or indirect supervisors that the
supervisor has determined that the Participant was guilty of conduct constituting Cause. 

  
 18 

	 	6.	No Mitigation. The Company agrees that, in order for a Participant to be eligible to receive the payments and other benefits described herein, the
Participant is not required to seek other employment or to attempt in any way to reduce any amounts payable to the Participant by the Company pursuant to Section 4 hereof. Further, the amount of any payment or benefit provided for in the Plan
shall not be reduced by any compensation earned by the Participant as the result of employment by another employer, by retirement benefits, by offset against any amount claimed to be owed by the Participant to the Company, or otherwise.

  

	 	7.	Successors; Binding Agreement. 

 7.1 
  

	 	(A)	The Company shall require any successor (whether direct or indirect, by purchase, merger, consolidation or otherwise) to all or substantially all of the business and/or
assets of the Company to expressly assume the Plan and all obligations of the Company hereunder in the same manner and to the same extent that the Company would be so obligated if no such succession had taken place. 

 

	 	(B)	This Plan shall inure to the benefit of and shall be binding upon the Company, its successors and assigns, but without the prior written consent of the Participants the
Plan may not be assigned other than in connection with the merger or sale of any part of the business and/or assets of the Company or similar transaction in which the successor or assignee assumes (whether by operation of law or express assumption)
all obligations of the Company hereunder. 

  

	 	7.2	This Plan shall inure to the benefit of and be enforceable by the Participant’s personal or legal representatives, executors, administrators, successors, heirs,
distributees, devisees, legatees or other beneficiaries. If a Participant shall die while any amount would still be payable to such Participant hereunder (other than amounts which, by their terms, terminate upon the death of the Participant) if such
Participant had continued to live, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of the Plan to the executors, personal representatives or administrators of such Participant’s estate.

  

	 	8.	Notices. For the purpose of the Plan, notices and all other communications provided for in the Plan shall be in writing and shall be deemed to have been
duly given when delivered or mailed by United States registered mail, return receipt requested, postage prepaid, addressed, if to a Participant, to the address on file with the Company and, if to the Company, to the address set forth below, or to
such other address as either party may have furnished to the other in writing in accordance herewith, except that notice of change of address shall be effective only upon actual receipt: 

One Amgen Center Drive 
 Thousand Oaks, California 91320-1789 
 Attention: Corporate Secretary 

 

	 	9.	Claims Procedures; Expenses. 

  

	 	9.1	The Participant’s assertion of a right to benefits under, in connection with, or in any way related to the Plan constitutes Participant’s agreement to resolve
covered disputes against any person or entity pursuant to this Section 9. 

  
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	 	9.2	Claim for Benefits. A Participant may file with the Administration Committee a written claim for benefits under the Plan. The Administration Committee shall,
within a reasonable time not to exceed ninety (90) days, unless special circumstances require an extension of time of not more than an additional ninety (90) days (in which event a Participant will be notified of the delay during the first
ninety (90) day period), provide adequate notice in writing to any Participant whose claim for benefits shall have been denied, setting forth the following in a manner calculated to be understood by the Participant: (i) the specific reason
or reasons for the denial; (ii) specific reference to the provision or provisions of the Plan on which the denial is based; (iii) a description of any additional material or information required to perfect the claim, and an explanation of
why such material or information is necessary; and (iv) information as to the steps to be taken in order that the denial of the claim may be reviewed, including a statement of the Participant’s right to bring an action under
Section 502(a) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”) following an adverse determination of the claim. 

 

	 	9.3	Review of Claims. If a Participant’s claim has been denied and the Participant wishes to submit a request for a review of such claim, the Participant must
follow the claims review procedure below: 

  

	 	(A)	Upon the denial of a claim for benefits, a Participant may file a request for review of the claim, in writing, with the Administration Committee or any person or
persons to whom the Administration Committee has delegated its duties hereunder, including a claims processor; 

  

	 	(B)	The Participant must file the claim for review not later than 60 days after the Participant has received written notification of the denial of the claim;

  

	 	(C)	The Participant has the right to review and obtain copies of all relevant documents relating to the denial of the claim and to submit any issues and comments, in
writing, to the Administration Committee; 

  

	 	(D)	If the claim is denied, the Administration Committee must provide the Participant with written notice of this denial within 60 days after the Administration
Committee’s receipt of the Participant’s written claim for review. There may be times when this 60-day period may be extended. This extension may only be made, however, when there are special circumstances that are communicated to the
Participant in writing within the 60-day period. If there is an extension, a decision will be made as soon as possible, but not later than 120 days after receipt by the Administration Committee of the claim for review; and 

 

	 	(E)	The Administration Committee’s decision on the claim for review will be communicated to the Participant in writing, and if the claim for review is denied in whole
or part, the decision will include: (i) the specific reason or reasons for the denial; (ii) specific reference to the provision or provisions of the Plan on which the denial is based; (iii) a statement that the Participant may
receive, upon request and free of charge, reasonable access to and copies of, all documents, records and other information relevant to the claim; and (iv) a statement of the Participant’s right to bring an action under Section 502(a)
of ERISA. 

  

	 	9.4	 Expenses, Legal Fees. The Company shall pay to the Participant all reasonable expenses (including reasonable attorneys’ fees and legal
expenses) incurred by the Participant with respect to any dispute or controversy arising under or in connection with the Plan (including, without limitation, all such fees and expenses, if any, incurred in contesting or disputing any termination of
the Participant’s employment or in seeking to obtain or enforce any right or benefit provided by the Plan, or in connection with any tax audit or 

  
 20 

	 	
proceeding to the extent attributable to the application of Section 4999 of the Code to any payment or benefit provided hereunder) if the Participant prevails on any material issue which is
in dispute with respect to such dispute or controversy. The Company shall make such payments no later than the last day of the Participant’s taxable year immediately following the taxable year in which the expenses are incurred.

  

	 	10.	Confidentiality; Non-Solicitation. 

  

	 	10.1	Confidentiality. With respect to each Participant, during the Participant’s Benefits Continuation Period, the Participant shall not directly or indirectly
disclose or make available to any person, firm, corporation, association or other entity for any reason or purpose whatsoever, any Confidential Information. Upon termination of a Participant’s employment with the Company, all Confidential
Information in the Participant’s possession that is in written or other tangible form (together with all copies or duplicates thereof, including computer files) shall be returned to the Company and shall not be retained by the Participant or
furnished to any third party, in any form except as provided herein; provided, however, that the Participant shall not be obligated to treat as confidential, or return to the Company copies of any Confidential Information that (i) was
publicly known at the time of disclosure to the Participant, (ii) becomes publicly known or available thereafter other than by any means in violation of the Plan or any other duty owed to the Company by any person or entity, or (iii) is
lawfully disclosed to the Participant by a third party. In addition, each Participant shall be subject to the Company’s policies regarding proprietary information and inventions, as set forth in the Proprietary Information Agreement.

  

	 	10.2	Non-Solicitation. In addition to each Participant’s obligations under the Proprietary Information Agreement, during a Participant’s Benefits
Continuation Period, the Participant shall not, either on the Participant’s own account or jointly with or as a manager, agent, officer, employee, consultant, partner, joint venturer, owner or stockholder or otherwise on behalf of any other
person, firm or corporation, directly or indirectly solicit or attempt to solicit away from the Company any of its officers or employees or offer employment to any person who is an officer or employee of the Company; provided, however, that a
general advertisement to which an employee of the Company responds shall in no event be deemed to result in a breach of this Section 10.2. 

  

	 	10.3	Breach; Violation. In the event that a Participant breaches or violates any provision of Section 10.1 or 10.2 hereof, the Participant shall thereupon
forfeit any right and interest of the Participant to receive payments or benefits hereunder, and the Company shall thereupon have no further obligation to provide such payments or benefits to the Participant hereunder. 

 

	 	10.4	Survival of Provisions. The provisions of this Section 10 shall survive the termination or expiration of the applicable Participant’s employment with
the Company and shall be fully enforceable thereafter. If it is determined by a court of competent jurisdiction in any state that any restriction in this Section 10 is excessive in duration or scope or is unreasonable or unenforceable under the
laws of that state, it is the intention of the parties that such restriction may be modified or amended by the court to render it enforceable to the maximum extent permitted by the law of that state. 

 

	 	11.	Miscellaneous. 

  

	 	11.1	No Waiver. No waiver by the Company or any Participant, as the case may be, at any time of any breach by the other party of, or of any lack of compliance with,
any condition or provision of the Plan to be performed by such other party shall be deemed a waiver of similar or dissimilar provisions or conditions at the same or at any prior or subsequent time. All other plans, policies and arrangements of the
Company in which the Participant participates during the term of the Plan shall be interpreted so as to avoid the duplication of benefits paid hereunder. 

  
 21 

	 	11.2	No Right to Employment. Nothing contained in the Plan or any documents relating to the Plan shall (i) confer upon any Participant any right to continue as a
Participant or in the employ of the Company or a subsidiary, (ii) constitute any contract or agreement of employment, or (iii) interfere in any way with the at-will nature of the Participant’s employment with the Company.

  

	 	11.3	Termination and Amendment of Plan. The Company shall have the right to amend (and to amend or cancel any amendments), or, subject to Section 2 hereof,
terminate the Plan at any time by resolution of the Board; provided, however, that after a Change of Control, the Company may not terminate the Plan and no amendment to the Plan shall be made which removes any Participant from participation
in the Plan, which amends subsection (W), (X) or (Y) of Section 1 hereof or which adversely affects a Participant’s interests without the express written consent of the Participant(s) so affected. Subject to Section 10.3
hereof, notwithstanding anything contained herein to the contrary, all obligations accrued by Participants prior to any termination of the Plan must be satisfied in full in accordance with the terms hereof. 

 

	 	11.4	Benefits not Assignable. Except as otherwise provided herein or by law, no right or interest of any Participant under the Plan shall be assignable or
transferable, in whole or in part, either directly or by operation of law or otherwise, including, without limitation, by execution, levy, garnishment, attachment, pledge or in any manner; no attempted assignment or transfer thereof shall be
effective; and no right or interest of any Participant under the Plan shall be liable for, or subject to, any obligation or liability of such Participant. When a payment is due under the Plan to a Participant who is unable to care for his or her
affairs, payment may be made directly to his or her legal guardian or personal representative. 

  

	 	11.5	Tax Withholding. The Company shall withhold from any payments made to a Participant under this Plan all federal, state and local income, employment and other
taxes that the Company reasonably determines to be required to be withheld by the Company in connection with such payments, in amounts and in a manner to be determined in the sole discretion of the Company. Except to the extent specifically provided
within this Plan or any separate written agreement between a Participant and the Company, a Participant shall be solely responsible for the satisfaction of any taxes with respect to the benefits payable to the Participant under this Plan (including,
but not limited to, employment taxes imposed on employees and additional taxes on nonqualified deferred compensation). 

  

	 	11.6	Code Section 409A. 

  

	 	(A)	Generally. Although the Company intends and expects that the Plan and its payments and benefits will not give rise to taxes imposed under Section 409A of
the Code, neither the Company, nor its employees, directors, or agents shall have any obligation to mitigate or to hold any Participant harmless from any or all of such taxes. 

 

	 	(B)	 Section 409A Six-Month Delayed Payment Rule. If any payments or benefits that become payable under this Plan on account of the
Participant’s termination of employment constitute a deferral of compensation under Code Section 409A, such payments or benefits will be provided when the Participant incurs a “separation from service” within the meaning of
Treasury Regulation § 1.409A-1(h) or successor provision (“Separation from Service”). If, at the time of the Participant’s Separation from Service, the Participant is a “specified employee” (within the meaning of
Section 409A of the Code and Treasury Regulation Section 1.409A-1(i) or successor provision), the Company will 

  
 22 

	 	
not pay or provide any “Specified Benefits” (as defined herein) during the six-month period beginning with the date of the Participant’s Separation from Service (the “409A
Suspension Period”). In the event of a Participant’s death, however, the Specified Benefits shall be paid to the Participant’s Beneficiary without regard to the 409A Suspension Period. For purposes of this Plan, “Specified
Benefits” are any payments or benefits that would be subject to Section 409A additional taxes if the Company were to pay them, pursuant to this Plan, on account of the Participant’s “separation from service.” Within 14
calendar days after the end of the 409A Suspension Period, the Participant shall be paid a lump-sum payment in cash equal to any Specified Benefits delayed during the 409A Suspension Period. 

 

	 	11.7	California Law. This Plan shall be construed, interpreted and the rights of the parties determined in accordance with the laws of the State of California, to the
extent not preempted by federal law, which shall otherwise control. 

  

	 	11.8	Validity. The invalidity or unenforceability of any provision of the Plan shall not affect the validity or enforceability of any other provision of the Plan,
which shall remain in full force and effect. If the Plan shall for any reason be or become unenforceable by either party, the Plan shall thereupon terminate and become unenforceable by the other party as well. 

  
 23 

 ANNEX A 
 AMGEN INC. CHANGE OF CONTROL SEVERANCE PLAN 
 SUBSIDIARIES EXCLUDED FROM
THE DEFINITION “COVERED SUBSIDIARIES” 
 Effective March 2, 2011, the following designated Subsidiaries shall be excluded
from the definition “Covered Subsidiaries” in the Amgen Inc. Change of Control Severance Plan (the “Plan”) and such designation shall remain in effect until modified by the Administration Committee as defined in the Plan:

 NONE 

  
 24

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