Form of Stock Option Agreement for Executive Officers (Form A).


 Exhibit 10.1 
  
 [STANDARD FORM OF OPTION AGREEMENT FOR EXECUTIVE OFFICERS (FORM A)] 
  
 ALEXION PHARMACEUTICALS, INC. 
 2004 INCENTIVE PLAN 
  
 STOCK OPTION AGREEMENT 
  
 AGREEMENT, made as of this      day of
                    , 200_ (the “Grant Date”), by and between Alexion Pharmaceuticals, Inc., a Delaware corporation (the
“Company”), and
                                        
             (the “Optionee”). 
  
 W I T N E S S E T H: 
  
 WHEREAS, pursuant to the Alexion Pharmaceuticals, Inc. 2004 Incentive Plan (the “Plan”), the Company desires to grant to the Optionee, and the
Optionee desires to accept, an option to purchase shares of the Company’s common stock, $0.0001 par value (the “Common Stock”), upon the terms and conditions set forth in this Agreement and the Plan. Capitalized terms used but not
defined herein shall have the meanings ascribed to such terms in the Plan. 
  
 NOW, THEREFORE, the parties hereto agree as follows: 
  
 1. Grant. The Company hereby grants to the Optionee an option (the “Option”) to purchase up to
                     shares of Common Stock, at a purchase price per share of
$            . This Option [is] [is not] intended to qualify as an “incentive stock option” within the meaning of Section 422 of the Internal Revenue Code of 1986, as
amended. 
  
 2. Restrictions on Exercisability. Except as
otherwise provided herein or in the Plan or in an employment agreement between the Optionee and the Company or its affiliates, this Option shall become exercisable in accordance with the schedule shown on Exhibit A based upon the
Optionee’s continuous employment or other service with the Company or its affiliates following the Grant Date. No shares of Common Stock may be purchased hereunder unless the Optionee shall have remained in the continuous employment or other
service of the Company or an affiliate up to and including the specified date shown on Exhibit A from the Grant Date. Unless earlier terminated, this Option shall expire if and to the extent it is not exercised on or prior to the tenth
anniversary of the Grant Date (the “Expiration Date”). 
  
 3. Exercise and Payment. The Optionee may exercise this Option in whole or in part in accordance with the schedule shown on Exhibit A by delivering to the Company (a) a written notice of such exercise specifying the number of shares
of Common Stock that the Optionee has elected to acquire and (b) payment in full of the exercise price, together with the amount, if any, deemed necessary by the Company to enable it to satisfy any tax withholding obligations with respect to the
exercise (unless other arrangements acceptable to the Company are made for the satisfaction of such withholding obligation). The Option exercise price shall be payable in cash or bank or certified check or by such methods in accordance with such
procedures as may be authorized or permitted by the Committee from time to time. 
  
 4. Rights as Stockholder. No shares of Common Stock shall be sold or delivered hereunder until full payment for such shares has been made. The Optionee shall have no rights as a stockholder with respect to any
shares covered by this Option until a stock certificate for 

  

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such shares is issued to the Optionee. Except as otherwise provided herein or in the Plan, no adjustment shall be made for dividends or distributions of
other rights for which the record date is prior to the date such stock certificate is issued. 
  
 5. Nontransferability. The Option is not assignable or transferable except upon the Optionee’s death to a beneficiary designated by the Optionee or, if no designated beneficiary shall survive the Optionee,
pursuant to the Optionee’s will or the laws of descent and distribution. During an Optionee’s lifetime, this Option may be exercised only by the Optionee. 
  
 6. Termination of Employment or other Service 
  
 (a) Disability or Death. Except as otherwise provided in an employment agreement between the Optionee and the Company
or its affiliates, if the Optionee’s employment or other service with the Company and its affiliates terminates due to his or her death or Disability (or if the Optionee’s employment or other service is terminated by reason of his or her
Disability and the Optionee dies within one year of such termination of employment or other service), then: (i) that portion of this Option that is not exercisable on the date of termination shall immediately terminate, and (ii) subject to Section
6(b) below, that portion of this Option that is exercisable on the date of termination shall remain exercisable, but only to the extent exercisable on the date of termination, by the Optionee (or the Optionee’s designated beneficiary or legal
representative) until the earlier of (x) the first anniversary of the date of termination (or, the first anniversary of the later death of a disabled Optionee) and (y) the Expiration Date and, to the extent not exercised during such period, shall
immediately terminate thereafter. 
  
 For purposes of this
Agreement, “Disability” shall mean, unless otherwise defined in an employment agreement between the Optionee and the Company or its affiliates (in which case, such meaning shall apply), the inability of an Optionee to perform the customary
duties of his or her employment or other service for the Company or its affiliates by reason of a physical or mental incapacity which is expected to result in death or to be of indefinite duration. 
  
 (b) Termination for Cause or at a Time when Cause Exists. Except as
otherwise provided in an employment agreement between the Optionee and the Company or its affiliates, if the Optionee’s employment or other service is terminated by the Company or an affiliate for Cause or if, at the time of the Optionee’s
termination, grounds for a termination for Cause exist, then this Option (whether or not then exercisable) shall immediately terminate and cease to be exercisable. 
  
 For purposes of this Agreement, “Cause” shall mean, unless otherwise defined in an employment agreement between
the Optionee and the Company or its affiliates (in which case, such meaning shall apply), the Optionee’s dishonesty, fraud, insubordination, willful misconduct, refusal to perform services, unsatisfactory performance of services or material
breach of any written agreement between the Optionee and the Company or any of its affiliates. 
  
 (c) Other Termination. Except as otherwise provided in an employment agreement between the Optionee and the Company or its affiliates, if the Optionee’s employment or other service with the Company and its
affiliates terminates for any reason not covered by Section 6(a) or 6(b) above, then: (i) that portion of this Option that is not exercisable on the date of termination shall immediately terminate, and (ii) subject to Section 6(b) above, that
portion of this Option that is exercisable on the date of termination shall remain exercisable, but only to the extent exercisable on the date of termination, by the Optionee until the earlier of (x) the ninetieth day following the date of
termination and (y) the Expiration Date and, to the extent not exercised during such period, shall immediately terminate thereafter. 
  

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 7. Cancellation of Option. Notwithstanding anything herein to the contrary, the Committee may
cancel, rescind, suspend, withhold or otherwise limit or restrict this Option at any time if the Optionee is not in compliance with all material applicable provisions of this Agreement or the Plan, or if the Optionee engages in a Detrimental
Activity. Upon exercise of the Option, if requested by the Company the Optionee shall certify in a manner acceptable to the Company that he or she is in compliance with the terms and conditions of this Agreement and the Plan and has not engaged in
any Detrimental Activity. 
  
 For purposes of this Agreement,
“Detrimental Activity” shall mean any of the following, unless authorized by the Company: (1) the rendering of services for any organization or engaging directly or indirectly in any business which is or becomes competitive with the
Company or its affiliates, or which organization or business, or the rendering of services to such organization or business, is or becomes otherwise prejudicial to or in conflict with the interests of the Company or its affiliates, (2) the
disclosure to anyone outside the Company or its affiliates, or the use in other than the Company’s or its affiliates’ business, without authorization from the Company, of any confidential information or material relating to the business of
the Company or its affiliates, acquired by the Optionee either during or after employment or other service with the Company or its affiliates, (3) the failure or refusal to disclose promptly and to assign to the Company or its affiliates all right,
title and interest in any invention or idea, patentable or not, made or conceived by the Optionee during employment by or other service with the Company or its affiliates, relating in any manner to the actual or anticipated business, research or
development work of the Company or its affiliates or the failure or refusal to do anything reasonably necessary to enable the Company or its affiliates to secure a patent where appropriate in the United States and in other countries insofar as any
matter referred to in this clause (3) violates any obligation of the Optionee to the Company or its affiliates, or (4) any attempt directly or indirectly to induce any employee of the Company or its affiliates to be employed or perform services
elsewhere or any attempt directly or indirectly to solicit the trade or business of any current or prospective customer, supplier or partner of the Company or its affiliates. 
  
 8. Securities Restrictions. This Option shall not be exercisable for such period as may be required to comply with
the Federal securities laws, state “blue sky” laws, an applicable listing requirement of any applicable securities exchange and any other law or regulation applicable to the exercise of this Option, and the Company shall not be obligated
to issue or deliver shares of Common Stock hereunder if the issuance or delivery of such shares would constitute a violation of any law or any regulation of any governmental authority or applicable securities exchange. 
  
 9. No Employment or Other Service Rights. Nothing in this Agreement
shall confer the Optionee any right to continue in the employment or other service of the Company or its affiliates, or in any way interfere with the right of the Company or its affiliates to terminate the employment or other service of the Optionee
at any time. 
  
 10. Provisions of the Plan. The provisions
of the Plan, the terms of which are incorporated in this Agreement, shall govern if and to the extent that there are inconsistencies between those provisions and the provisions hereof. The Optionee acknowledges that he or she received a copy of the
Plan prior to the execution of this Agreement. 
  

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 11. Miscellaneous. This Agreement shall be binding upon and shall inure to the benefit of the
parties hereto and their respective successors and permitted assigns. This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware, without regard to its principles of conflicts of law. This Agreement
constitutes the entire agreement between the parties with respect to the subject matter hereof and, except as otherwise provided in the Plan, may not be modified other than by written instrument executed by the parties. 
  
 IN WITNESS WHEREOF, this Agreement has been executed as of the date first
above written. 
  

			
	ALEXION PHARMACEUTICALS, INC.
		
	By:	 	  


	Name:	 	 
	Title:	 	 


  
  

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 Exhibit A 
  

			
	Date	 	Options Vested

  
 No shares of Common Stock may be
purchased hereunder unless the Optionee shall have remained in the continuous employment or other service of the Company or an affiliate up to and including the specified date shown on this Exhibit A from the Grant Date. Unless earlier terminated,
this Option shall expire if and to the extent it is not exercised on or prior to the Expiration Date. 
  

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