Document:

Separation Agreement and General Release

 Exhibit 10.1 
 SEPARATION AGREEMENT AND GENERAL RELEASE OF ALL CLAIMS 
 This Separation Agreement and
Release (“Agreement”) is entered into between Kelyn Brannon (“Employee”) and Calix, Inc., a Delaware corporation (collectively with its past and present officers, directors, shareholders, affiliates, successors, assigns, agents,
employees and representatives, the “Company”) , effective eight days after Employee’s signature (the “Effective Date”), unless Employee revokes Employee’s acceptance as provided in Paragraph 5(h), below. In
consideration of the covenants set forth below and other good and valuable consideration the parties agree as follows: 
 1.
Separation of Employment. 
 (a) Separation Date. Employee and the Company acknowledge and agree that
Employee’s status as an officer and employee of the Company terminated effective March 4, 2011 (“Separation Date”). Employee resigns all positions with the Company and its subsidiaries as of the Separation Date. 

(b) Payment of Final Wages. Employee acknowledges and agrees that as of the Separation Date, the Company has paid Employee
(1) all salary, bonuses, commissions and variable compensation owed to the Employee through the Separation Date (subject to applicable tax withholding), (2) all accrued but unused vacation and floating days of Employee at Employee’s
final rate of pay (subject to applicable tax withholding), and (3) all unreimbursed business expenses incurred and submitted by Employee prior to the Separation Date. The Company will reimburse any remaining expenses upon timely submission by
Employee according to Company policy. 
 (c) SEC Reporting. Employee further acknowledges that to the extent
required by the Securities Exchange Act of 1934, as amended, Employee will have continuing obligations under Section 16(a) and 16(b) of such act to report her transactions in Company common stock for six months following the termination of
Employee’s status as an officer of the Company (it being agreed Employee shall be solely responsible for such forms). Employee shall be released from the Company’s Insider Trading Compliance Program effective on the Separation Date, in
reliance on Employee’s representation that she does not presently possess material non-public information regarding the Company. 
 2. Severance Benefits. In consideration for the release of claims set forth below and other obligations under this Agreement, and provided this Agreement is signed by Employee and not
revoked under paragraph 5(h) below, the Company agrees to provide the following severance benefits to Employee. Employee acknowledges and agrees that the severance benefits set forth in this Section 2 include all severance benefits payable to
Employee under the Calix, 

  
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Inc. Executive Change in Control and Severance Plan, effective July 20, 2010 (“Plan”), and no additional benefits will be payable under the Plan, any other agreement with or plan
or arrangement of the Company or otherwise, except as set forth in this Section 2. 
 (a) The Company will pay Employee a
lump sum cash payment in the amount of: $285,000, which is equal to the sum of 12 months of Employee’s base salary as in effect as of the Separation Date; plus $141,200, which is equal to the sum of Employee’s 2010 target bonus
opportunity; plus $142,500, which is equal to the sum of Employee’s 2011 target bonus opportunity. 
 (b) As of the
Effective Date, each outstanding equity award that Employee holds as of the Separation Date will vest and, if applicable, become exercisable to the same extent such equity award would have vested had Employee continued to remain employed by the
Company for 12 months after the Separation Date. Each vested option to purchase Company common stock held by Employee will remain exercisable in accordance with the agreement evidencing such option; and 

(c) Subject to the requirements of the Internal Revenue Code of 1986, as amended, the Company will pay, or, at its election, reimburse
Employee for, premiums for health insurance coverage to the same extent it paid health insurance premiums on Employee’s behalf as of immediately prior the Separation Date, if Employee elects to continue health insurance pursuant to the
Consolidated Omnibus Budget Reconciliation Act (“COBRA”) (this health coverage is generally referred to as “Company-Paid Premiums”). Company-Paid Premiums will continue for 12 months; provided, however, that the
Company-Paid Premiums will terminate earlier if Employee cancels the underlying coverage or such coverage otherwise ends sooner because Employee become eligible for and elect health coverage with another employer. If Employee’s Company-Paid
Premiums included dependents immediately prior to the Separation Date, the Company will continue to pay for the premiums of such dependents after the Separation Date to the same extent, and for the same duration, as are paid by the Company for
Employee unless Employee elects otherwise. 
 (d) The severance payments set forth in Section 2(a) shall be paid on the
Company’s first regular payroll date after the Effective Date. 
 (e) Employee understands and agrees that all payments
under this Agreement will be subject to appropriate tax withholding as and to the extent required by law. To the extent any taxes may be payable by Employee for the benefits provided to Employee by this Agreement beyond those withheld by the
Company, Employee agrees to pay those amounts and to indemnify and hold the Company and the other released entities harmless for any tax claims or penalties, and associated attorneys’ fees and costs, resulting from any failure by Employee to
make required payments. 
 3. Release of Claims. In consideration for the obligations of the Company set forth in
this Agreement, Employee, on behalf of Employee and Employee’s heirs, executors, administrators and assigns, fully and forever releases the Company and its current and former officers, directors, employees, investors, stockholders,
administrators, attorneys, predecessor and successor corporations and assigns (“Releasees”), of and from any claim, duty, obligation or 

  

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cause of action relating to any matters of any kind, whether presently known or unknown, suspected or unsuspected, that Employee may possess arising from any omissions, acts or facts that have
occurred up until and including the date of this Agreement including, without limitation: 
 (a) any and all claims relating to
or arising from Employee’s employment relationship with the Company and the termination of that relationship, including but not limited to any claims for wages, salary, bonus, compensation, deferred compensation, or other cash payments;

 (b) any and all claims relating to, or arising from, Employee’s right to purchase, or actual purchase of shares of the
capital stock of the Company; 
 (c) any and all claims for wrongful discharge of employment; breach of contract, both express
and implied; breach of a covenant of good faith and fair dealing, both express and implied; negligent or intentional infliction of emotional distress; negligent or intentional misrepresentation; negligent or intentional interference with contract or
prospective economic advantage; negligence; defamation; personal injury, or any claims arising out of any other agreement, incident or relationship between the parties prior to the execution of this Agreement; and 

(d) any and all claims for violation of any federal, state or municipal statute, including, but not limited to, Title VII of the
Civil Rights Act of 1964, the Civil Rights Act of 1991, the Equal Pay Act, the False Claims Act, the Worker Adjustment and Retraining Notification Act, the Fair Labor Standards Act, the Sarbanes-Oxley Act of 2002, the Age Discrimination in
Employment Act of 1967, the Americans with Disabilities Act of 1990, the California Fair Employment and Housing Act, the California Labor Code, the Rehabilitation Act of 1973, California Family Rights Act, California Business & Professions
Code Section 17200, Executive Order 11126, Title 42 of the United States Code, the Employee Retirement Income Security Act of 1974, and any family and medical leave acts. 
 (e) Employee does not release the following claims: 
 (i) claims for unemployment
compensation or any state disability insurance benefits pursuant to the terms of applicable state law; 
 (ii) claims for
workers’ compensation insurance benefits under the terms of any worker’s compensation insurance policy or fund of the Company; 
 (iii) claims to continued participation in certain of the Company’s group benefit plans pursuant to the terms and conditions of COBRA; 

(iv) claims to any benefit entitlements vested as the date of Employee’s employment termination, pursuant to written terms of any
Company employee benefit plan; 
 (v) claims for indemnification under California Labor Code Section 2802, the
Company’s Certificate of Incorporation, the Company’s Bylaws, Delaware General Corporation Law or other applicable law, and under the terms of any policy of insurance purchased by the Company; and 

  
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 (vi) Employee’s right to bring to the attention of the Equal Employment Opportunity
Commission claims of discrimination; provided, however, that Employee does release Employee’s right to secure any damages for alleged discriminatory treatment. 
 (f) Employee agrees that the release set forth in this Section 3 shall be and remain in effect in all respects as a complete general release as to the matters released. This release does not extend
to any obligations incurred or specified under this Agreement. 
 4. Civil Code Section 1542. Employee
represents that Employee is not aware of any claim by Employee other than the claims that are released by this Agreement. Employee acknowledges that Employee has been advised by legal counsel and is familiar with the provisions of California Civil
Code Section 1542, which provides as follows: 
 A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES NOT
KNOW OR SUSPECT TO EXIST IN HIS OR HER FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF KNOWN BY HIM OR HER MUST HAVE MATERIALLY AFFECTED HIS OR HER SETTLEMENT WITH THE DEBTOR. 

Employee, being aware of said Code section, agrees to expressly waive any rights Employee may have thereunder, as well as under any other
statute or common law principles of similar effect. 
 5. Acknowledgment of Waiver of Claims under ADEA. Employee
acknowledges that Employee is waiving and releasing any rights Employee may have under the Age Discrimination in Employment Act of 1967 (“ADEA”) and that this waiver and release is knowing and voluntary. Employee fully understands,
acknowledges and agrees that Employee has the right not to execute this Agreement without first having considered it for a full 21 days from receipt of the Agreement. Employee further understands and agrees that Employee: 

(a) May sign this Agreement without waiting the full 21 days and that, if Employee has done so, Employee’s decision to do so has
been knowing and voluntary, and not induced through fraud, misrepresentation, a threat to withdraw or alter the offer prior to the expiration of the 21-day period, or the provision of different terms to employees who sign any release prior to
expiration of the 21-day period. 
 (b) Did not execute this Agreement without first being advised in writing to consult an
attorney of Employee’s choice. 
 (c) Has carefully read and fully understands all of the provisions of this Agreement and
knowingly and voluntarily agrees to all of the terms of this Agreement; 
 (d) Has at all times during the course of negotiation
and execution of this Agreement been advised by an attorney or has had adequate opportunity to consult counsel of Employee’s choice concerning the terms of this Agreement. Employee was and is hereby advised in writing to consult with counsel of
Employee’s choice before entering into this Agreement; 

  
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 (e) Is, through this Agreement, releasing the Releasees from any and all claims that
Employee has or may have against them; 
 (f) Knowingly and voluntarily agrees to all of the terms set forth in this Agreement;

 (g) Knowingly and voluntarily intends to be legally bound by all of the terms of this Agreement; 

(h) Has a period of seven full days following execution of this Agreement to revoke this Agreement (the “Revocation Period”) by
providing written notice of such revocation to the Company and was previously advised, and is hereby further advised in writing, that this Agreement shall not become effective or enforceable until this Revocation Period has expired without Employee
having exercised Employee’s right of revocation. If Employee wishes to revoke this Agreement, Employee must deliver notice of Employee’s revocation in writing, no later than 5:00 p.m. on the 7th day following Employee’s execution of
this Agreement to Senior Director, Human Resources, Calix, Inc., 1035 N. McDowell Boulevard, Petaluma, CA 94954, fax: (707) 283-3237. 
 (i) Understands that rights or claims under the Age Discrimination in Employment Act of 1967, 29 U.S.C., Section 621 et seq., that may arise after the date this Agreement is executed by all parties
are not waived; and 
 (j) Acknowledges that Employee’s employment with the Company terminated as of the date set forth in
Section 1 above, regardless of whether Employee elects to revoke this Agreement. 
 6. Nondisparagement.
Employee and the Company agree to refrain from any disparagement, criticism, defamation, slander of the other, or tortious interference with the contracts and relationships of the other. 

7. Employee Representations. Employee warrants and represents that (a) Employee has not filed or authorized the filing
of any complaints, charges or lawsuits against the Company or any affiliate of the Company with any governmental agency or court, and that if, unbeknownst to Employee, such a complaint, charge or lawsuit has been filed on Employee’s behalf,
Employee will immediately cause it to be withdrawn and dismissed, (b) Employee has reported all hours worked as of the date of this Agreement and has been paid all compensation, wages, bonuses, commissions, and/or benefits to which Employee may
be entitled and no other compensation, wages, bonuses, commissions and/or benefits are due to Employee, except as provided in this Agreement, (c) Employee has no known workplace injuries or occupational diseases and has been provided and/or has
not been denied any leave requested under the Family and Medical Leave Act or any similar state law, (d) the execution, delivery and performance of this Agreement by Employee does not and will not conflict with, breach, violate or cause a
default under any agreement, contract or instrument to which Employee is a party or any judgment, order or decree to which Employee is subject, and (e) upon the execution and delivery of this Agreement by the Company and Employee, this
Agreement will be a valid and binding obligation of Employee, enforceable in accordance with its terms. 

  
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 8. Nondisclosure. Employee understands and agrees that Employee’s
obligations to the Company under Employee’s existing Confidential Information and Invention Assignment Agreement between Employee and the Company (the “Confidentiality Agreement”), a copy of which is attached as Exhibit A,
shall survive termination of Employee’s relationship with the Company under this Agreement. Employee warrants that at all times in the past Employee has been, and agrees that at all times hereafter Employee shall continue to be, in compliance
with Employee’s obligations to maintain the confidentiality of all confidential and proprietary information of the Company as provided by the Confidentiality Agreement. Employee expressly agrees that Employee shall not intentionally divulge,
furnish or make available to any party any of the trade secrets, patents, patent applications, price decisions or determinations, marketing plans, business plans, product plans, inventions, customers, proprietary information or other intellectual
property of the Company, until after such time as such information has become publicly known otherwise than by act of collusion of Employee. Employee agrees to execute the Separation Certification, attached as Exhibit B, and return it to the
Company with this Agreement, which certifies that Employee has returned all the Company’s property and confidential and proprietary information in Employee’s possession to the Company. 

9. Severability. In the event that any provision of this Agreement becomes or is declared by a court or other tribunal of
competent jurisdiction to be illegal, unenforceable or void, the remainder of this Agreement and the application of such provision to other persons or circumstances shall be interpreted so as best to effect the intent of the parties. The parties
further agree to replace any such illegal, unenforceable or void provision of this Agreement with a valid and enforceable provision that will achieve, to the extent possible, the economic, business, and other purposes of the void or unenforceable
provision. 
 10. Arbitration. The parties shall attempt to settle all disputes arising in connection with this
Agreement through good faith consultation. In the event no agreement can be reached on such dispute within 15 days after notification in writing by either party to the other concerning such dispute, the dispute shall be settled by binding
arbitration to be conducted in Sonoma County under the American Arbitration Association’s California Employment Dispute Resolution Rules by an arbitrator to be mutually agreed upon. The arbitration decision shall be final, conclusive and
binding on both parties and any arbitration award or decision may be entered in any court having jurisdiction. The parties agree that the prevailing party in any arbitration shall be entitled to injunctive relief in any court of competent
jurisdiction to enforce the arbitration award. The parties further agree that the prevailing party in any such proceeding shall be awarded reasonable attorneys’ fees and costs to the extent permitted by law. This Section shall not apply to the
Confidentiality Agreement. Employee and the Company waive any rights they may have to trial by jury in regard to arbitrable claims. 
 11. Entire Agreement. This Agreement and its Exhibits represent the entire agreement and understanding between the Company and Employee concerning Employee’s separation from the
Company, and supersede and replace any and all prior agreements and understandings concerning Employee’s relationship with the Company and Employee’s compensation by the Company. Employee acknowledges that neither the Company nor any
representative of Company has made any representation or promise to Employee other than as set forth in this Agreement. No other promises or agreements shall be binding unless in writing and signed by both parties. Any oral representations regarding
this Agreement shall have no force or effect. 

  
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 12. Governing Law. This Agreement shall be governed by the laws of the State
of California, without regard to its conflicts of law provisions. 
 13. Expiration of Offer. This Agreement is
offered by the Company on March 5, 2011, and shall remain available, unless otherwise rejected by the Employee or revoked by the Company, until 5:00 p.m. Pacific Time on March 26, 2011. Employee may accept the offer only by returning an
executed copy of this Agreement to the Company and by completing the other conditions specified in this Agreement. If the Agreement is not accepted by Employee before the date and time specific, the offer shall be deemed rescinded. 

14. Counterparts. This Agreement may be executed in counterparts, and each counterpart shall have the same force and effect
as an original and shall constitute an effective, binding agreement on the part of each of the undersigned. All executed copies of this Agreement shall constitute duplicate originals and shall be equally admissible in evidence. 

15. Assignment. This Agreement may not be assigned by Employee or the Company without the prior written consent of the
other party. Notwithstanding the foregoing, this Agreement may be assigned by the Company to a corporation controlling, controlled by or under common control with the Company without the consent of Employee. 

16. Employee’s Cooperation. Employee shall cooperate with the Company and its affiliates, upon the Company’s
reasonable request, with respect to any internal investigation or administrative, regulatory or judicial proceeding involving matters within the scope of Employee’s duties and responsibilities to the Company during his employment with the
Company (including, without limitation, Employee being available to the Company upon reasonable notice for interviews and factual investigations, appearing at the Company’s reasonable request to give testimony without requiring service of a
subpoena or other legal process, and turning over to the Company all relevant Company documents which are or may have come into Employee’s possession during Employee’s employment); provided, however, that any such request by the Company
shall not be unduly burdensome or interfere with Employee’s personal schedule or ability to engage in gainful employment. In the event the Company requires Employee’s cooperation in accordance with this Section 16, the Company shall
reimburse Employee for reasonable out-of-pocket expenses (including travel, lodging and meals) incurred by Employee in connection with such cooperation, subject to reasonable documentation. 

17. Voluntary Execution of Agreement. This Agreement is executed voluntarily and without any duress or undue influence on
the part or behalf of the parties, with the full intent of releasing all claims. The parties acknowledge that they have read this Agreement; they have been represented in the preparation, negotiation, and execution of this Agreement by legal counsel
of their own choice or that they have voluntarily declined to seek such counsel; they understand the terms and consequences of this Agreement and of the releases it contains; and they are fully aware of the legal and binding effect of this
Agreement. 

  
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 IN WITNESS, the parties have executed this Separation Agreement and General Release of all
Claims on the respective dates set forth below. 
  

							
		 		 	CALIX, INC.
				
	Dated as of March 7, 2011	 		 	By:	 	 /s/ Tish Rutledge

				
		 		 	Title:	 	 Sr. Director, Human Resources

EMPLOYEE ACKNOWLEDGES THAT EMPLOYEE HAS COMPLETELY AND CAREFULLY READ THE FOREGOING, INCLUDING THE WAIVER AND RELEASE OF CLAIMS SET FORTH IN SECTIONS 3,
4 AND 5 ABOVE, AND THE PARAGRAPHS REGARDING PROPRIETARY INFORMATION, CONFIDENTIALITY OF THE COMPANY’S INFORMATION AND CONFIDENTIALITY OF THIS RELEASE CONTAINED IN SECTIONS 6 AND 7 ABOVE, AND EMPLOYEE FULLY UNDERSTANDS AND VOLUNTARILY AGREES TO
THE FOREGOING TERMS: 
  

					
		 		 	Kelyn Brannon, an individual
			
	Dated as of March 7, 2011	 		 	 /s/ Kelyn Brannon

		 		 	Signature

  
 Page 8 of 9Offer Letter

 Exhibit 10.2 

 

			
		 	March 5, 2011

 Michael Ashby 

23 Sessions Road 
 Lafayette, CA 94549

 Dear Michael: 
 On
behalf of Calix, Inc. (the “Company”), I am pleased to offer you this employment agreement for the full time position of Executive Vice President and Chief Financial Officer of the Company. 

The terms of your position with the Company are as set forth below: 

1. Position. 
 (a) You will serve as the Executive Vice President and Chief Financial Officer of the Company, working out of the Company’s headquarters office in Petaluma, California. You will report directly to
the President and Chief Executive Officer of the Company. 
 (b) You agree to the best of your ability and experience that you
will at all times loyally and conscientiously perform all of the duties and obligations required of and from you pursuant to the express and implicit terms hereof, and to the reasonable satisfaction of the Company. During the term of your
employment, you further agree that: 
 (1) you will devote all of your business time and attention to the business of the
Company, 
 (2) the Company will be entitled to all of the benefits and profits arising from or incident to all such work
services and advice, 
 (3) you will not render commercial or professional services of any nature to any person or
organization, whether or not for compensation, without the prior written consent of the Company’s Board of Directors, and 

(4) you will not directly or indirectly engage or participate in any business that is competitive in any manner with the business of the
Company. 
 However, you shall be permitted to continue to serve on the boards of directors of the companies set forth on
Exhibit A; provided, however, that you will devote only such time to those companies as is required to properly discharge your fiduciary duties and you shall, as situations allow, make a good faith effort to resign from such boards as soon as
practicable. Nothing in this letter agreement will prevent you from accepting speaking or presentation engagements in exchange for honoraria or from serving on boards of charitable organizations, or from owning no more than 1% of the outstanding
equity securities of a corporation whose stock is listed on a national stock exchange. 

  
 1 

 2. Effective Date. Subject to fulfillment of any conditions imposed by this
letter agreement, the terms of this agreement shall commence March 7, 2011. 
 3. Proof of Right to Work. For
purposes of federal immigration law, you will be required to provide to the Company documentary evidence of your identity and eligibility for employment in the United States. Such documentation must be provided to us within three business days of
your date of hire, or our employment relationship with you may be terminated. 
 4. Compensation. You will receive
a base salary of $10,769.23 every two weeks, which equates to $280,000 annually, on the Company’s regular payroll dates and subject to applicable tax withholding. In addition, you will be eligible to receive a 2011 bonus targeted at 50% of your
base salary based on meeting objectives and funding approved by the Compensation Committee. The Compensation Committee will review your compensation on an annual basis based on your performance and Calix’s performance. 

5. Stock Option Grant. In connection with the commencement of your employment, the Company will recommend that the Board of
Directors grant you an option to purchase 200,000 shares of the Company’s Common Stock (“Shares”), subject to the terms of the Calix, Inc. 2010 Equity Incentive Award Plan (“Equity Plan”), with an exercise price equal to the
closing trading price of Calix common stock on the date of the grant. This option will vest during the period that you remain continuously employed by the Company at the rate of 25% of the Shares on the one year anniversary of the Effective Date,
with the remainder of the Shares vesting monthly thereafter in equal installments over the next 36 months, subject to the terms of the Equity Plan and a stock option agreement to be entered into between you and the Company. 

6. Benefits. 
 (a) Insurance Benefits. The Company will provide you with the opportunity to participate in the standard benefits plans currently available to other executive-level employees of the Company,
subject to any eligibility requirements imposed by such plans. 
 (b) Vacation; Sick Leave. You will be entitled
to such number of paid vacation days per year equivalent to that provided to other executive-level employees of the Company. Vacation accrues ratably per pay period and may not be taken before it is accrued. 

(c) Business Expenses. The Company shall reimburse you, following submission of appropriate documentation, for the
reasonable travel, entertainment, cellular telephone and other business expenses incurred in connection with your duties to the Company, other than any expenses related to travel on personal or private aircraft, subject to the Company’s
expenditure and reimbursement guidelines. 
 7. Change in Control and Severance Plan. You will be eligible to
participate in the Calix, Inc. Executive Change in Control and Severance Plan (“CIC Plan”) as a “Senior Executive” (as defined in the CIC Plan). A copy of the CIC Plan is attached as Exhibit B. 

  
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 8. Confidential Information and Invention Assignment Agreement. Your
acceptance of this offer and commencement of employment with the Company is contingent upon your continued adherence to the terms and conditions of the Company’s Confidential Information and Invention Assignment Agreement. A copy of your signed
agreement is enclosed as Exhibit C. 
 9. No Conflicts. You understand and agree that by accepting this offer of
employment, you represent to the Company that your performance will not breach any other agreement to which you are a party and that you have not, and will not during the term of your employment with the Company, enter into any oral or written
agreement in conflict with any of the provisions of this letter or the Company’s policies. You will not use or disclose to any person associated with the Company, any confidential or proprietary information belonging to any former employer or
other third party with respect to which you owe an obligation of confidentiality under any agreement or otherwise. The Company does not need and will not use such information and we will assist you in any way possible to preserve and protect the
confidentiality of proprietary information belonging to third parties. We also expect you to abide by any obligations to refrain from soliciting any person employed by or otherwise associated with any former employer and suggest that you refrain
from having any contact with such persons until such time as any non-solicitation obligation expires. 
 10. At-Will
Employment. Your employment with the Company is on an “at will” basis, meaning that either you or the Company may terminate your employment at any time, with or without cause or advance notice, without further obligation or
liability other than as expressly set forth in this letter. The Company also reserves the right to modify or amend the terms of your employment at any time at its sole discretion with reasonable advance notice, subject to the provisions of this
letter. This policy of at-will employment is the entire agreement as to the duration of your employment and may only be modified in an express written agreement signed by an appropriate officer of the Company. 

11. Equal Opportunity/Affirmative Action. As an employee, you will be expected to adhere to the Company’s standards of
professionalism, loyalty, integrity, honesty, reliability and respect for all. The Company is an equal opportunity and affirmative action employer that does not permit, and will not tolerate, the unlawful discrimination or harassment of any
employees, consultants, or third parties on the basis of sex, race, color, religion, age, national origin or ancestry, marital status, veteran status, mental or physical disability or medical condition, sexual orientation, pregnancy, childbirth or
related medical condition, or any other status protected by law. Any questions regarding these policies should be directed to Human Resources. 
 12. Disability Accommodation. Calix does not discriminate against disabled applicants who are otherwise qualified and able to perform the essential functions of a particular position. If you
are an individual with a disability and require reasonable accommodation in order to perform the essential functions of your position, please contact Tish Rutledge, Director, Human Resources. If the accommodation can be accomplished without creating
an undue hardship, Calix will be happy to cooperate in making this accommodation. 

  
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 We are all delighted to be able to extend you this offer and look forward to working with
you. To indicate your acceptance of the Company’s offer, please sign and date this letter in the space provided below and return it to me. This letter may not be modified or amended except by a written agreement, signed by the Company and by
you. 
  

									
	 Very truly yours,
  

CALIX, INC.
	 		 	ACCEPTED AND AGREED:
				
	By: 	 	/s/ Carl Russo	 		 	/s/ Michael Ashby
		 		 		 	Michael Ashby
					
	Print Name: 	 	Carl Russo	 		 		 	
					
	Title: 	 	President and Chief Executive Officer	 		 	Date:	 	March 7, 2011
		 		 		 		 	

 Exhibit A: List of Board Commitments 
 Exhibit B: Calix, Inc. Executive Change in Control and Severance Plan 
 Exhibit C: Confidential
Information and Invention Assignment Agreement 

  
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