Document:

Second Amendment to Loan and Security Agreement

 Exhibit 10.4 
 SECOND AMENDMENT TO LOAN AND SECURITY AGREEMENT 
 THIS SECOND AMENDMENT TO
LOAN AND SECURITY AGREEMENT (this “Amendment”) is entered into as of April 5, 2011, by and among MAP PHARMACEUTICALS, INC, a Delaware corporation (“Borrower”), SILICON VALLEY BANK, a California bank
(“SVB”) and OXFORD FINANCE CORPORATION, a Delaware corporation (“Oxford”, and together with SVB, the “Lenders”). 
 RECITALS 
 A. Lenders and Borrower have entered into a Loan and
Security Agreement dated as of May 2, 2008, as amended by that certain First Amendment to Loan and Security Agreement dated as of October 28, 2008 (as the same may from time to time be further amended, modified, supplemented or restated,
the “Loan Agreement”). 
 B. Lenders and Borrower desire to amend and modify certain terms of the Loan
Agreement, subject to the terms and conditions hereinafter set forth. 
 C. Unless otherwise defined herein, terms capitalized
herein and defined in the Loan Agreement shall have the meanings ascribed to them in the Loan Agreement. 
 AGREEMENT

 The parties agree as follows: 
  

	1.	AMENDMENTS 

 1.1
Definitions. The following new definitions are hereby added to Section 1.1 of the Loan Agreement in the alphabetically appropriate place: 
 “Funding Transaction” means any transaction or series of transactions entered into by a Lender, any Affiliate of Lender or any Securitization Entity with a Permitted Transferee for the
purpose of obtaining funding for any such entity and pursuant to which such Lender, Affiliate or Securitization Entity may sell, convey or otherwise transfer, or pledge or grant a security interest in any of their respective interests in the Loan
Agreement or any Loan Document. 
 “Permitted Transferee” means any Person, other than a natural Person, that
is (i) an Affiliate of a Lender, (ii) a Securitization Entity, or (iii) a commercial bank, insurance company, investment or mutual fund or other entity that is an “accredited investor” (as defined in Regulation D under the
Securities Act) and which extends credit or buys loans or financial assets in the ordinary course of business; provided that so long as no Event of Default exists, such entity shall not be a distressed debt or vulture fund or a competitor of
Borrower, in each case as reasonably defined by either Lender 

 “Securitization Entity” means a Lender Subsidiary formed by a Lender for
the purpose of obtaining funding secured by assets including all or any part of the Lender’s interests in the Loan Agreement or any Loan Document, and that engages in no material activities other than in connection with the financing or
securitization of loans or financial assets. For the purpose of this definition, “Lender Subsidiary”, with respect to any Lender, means any entity (a) of which securities or other ownership interests representing more than 50% of the
equity or more than 50% of the ordinary voting power, as of such date, are owned, controlled or held by such Lender, and (b) as to which such Lender possesses, directly or indirectly, the power to direct or cause the direction of the management
or policies of a Person, whether through the ability to exercise voting power, by contract or otherwise. 
 1.2 Successor
and Assigns. Section 12.1 of the Loan Agreement is hereby amended and restated in its entirety to read as follows: 

“12.1 Successor and Assigns. 
 (a) This Agreement and the Loan Documents shall bind and inure to the benefit of the respective successors and permitted assigns of each of the parties; provided, however, neither this Agreement nor any
rights hereunder may be assigned by Borrower without Lenders’ prior written consent, which consent may be granted or withheld in any Lenders sole discretion. Prior to an Event of Default, each of Lenders has the right, with the consent of
Borrower (which shall not be unreasonably withheld), to sell, transfer, negotiate, assign, or grant participation of all or any part of, or any interest in, its obligations, rights, and benefits under this Agreement and the other Loan Documents;
provided that each of Lenders has the right, without Borrower’s consent, to sell or assign all or any part of, or any interest in, its obligations, rights, and benefits under this Agreement and the other Loan Documents in connection with
(i) any sale of such Lender, or (ii) any assignment of a material part of its assets, or (iii) if otherwise required by law (as by way of example only, a portfolio divestment required by regulators). While an Event of Default exists,
each of Lenders has the right, without the consent of or notice to Borrower, to sell, transfer, negotiate, or grant participation in all or any part of, or any interest in, its obligations, rights, and benefits under this Agreement and the other
Loan Documents. Lenders may disclose the Loan Documents and any other financial or other information relating to Borrower or any Subsidiary to any potential participant or assignee of any of the Loans; provided that such participant or assignee
agrees to protect the confidentiality of such documents and information using the same measures that it uses to protect its own confidential information. 
 (b) Notwithstanding anything in the Loan Documents or this Agreement to the contrary, there shall be no limitation or restriction on (i) the ability of any Lender or any Securitization Entity to
pledge, assign or otherwise transfer any of its interest in the Loan Agreement or any Loan Document in connection with any such Funding Transaction or (ii) the ability of a Permitted Transferee to assign or otherwise transfer any of its
interest in the Loan Agreement or any Loan Document upon the occurrence of an event of default or similar occurrence with respect to any such Funding Transaction; provided, however, that such Lender shall continue to be liable as a
“Lender” under the Loan Agreement and the Loan Documents.” 

	2.	GENERAL PROVISIONS 

2.1 Ratification. The Loan Agreement, as amended hereby, is hereby ratified and remains in full force and effect.

 2.2 Effect of Amendment. Upon the effectiveness of this Amendment, on and after the date hereof each reference
in the Loan Agreement, to “this Agreement”, “hereof”, “hereunder” or words of like import referring to the Loan Agreement, or any reference in any other Loan Document (as defined in the Loan Agreement) to the Loan
Agreement shall mean and be a reference to the Loan Agreement as modified, confirmed and ratified hereby. 
 2.3
Successors and Assigns. This Amendment shall inure to the benefit of the parties hereto and their respective successors and assigns, and bind the parties hereto and their respective successors and permitted assigns. 

2.4 Counterparts. This Amendment may be executed in any number of counterparts, each of which shall be deemed an original,
and all of which, when taken together, shall constitute one and the same instrument, and any facsimile or photocopied signature hereto shall be deemed original signatures hereto, all of which shall be equally valid. 

2.5 Governing Law. This Amendment shall be governed by and construed and interpreted in accordance with the governing or
choice of law provisions set forth in the Loan Agreement and shall be subject to the waiver of jury trial and notice provisions of the Loan Agreement. 
 2.6 Severability. In the event any term or provision of this Amendment or the application thereof to any person or entity or circumstance, shall, for any reason or to any extent be invalid
or unenforceable, the remaining terms and provisions of this Amendment, or the application of any such provision to persons, entities or circumstances other than those as to whom or which it has been determined to be invalid or unenforceable, shall
not be affected thereby, and every provision of this Amendment shall be valid and enforceable to the fullest extent permitted by law. 
 [Signature Pages Follow] 

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed as of the
date first above written. 
  

			
	OXFORD FINANCE CORPORATION, as Lender
		
	By:	 	 /s/ John G. Henderson

	Name:	 	 John G. Henderson

	Title:	 	 Vice President & General Counsel

	
	SILICON VALLEY BANK, as Lender
		
	By:	 	 /s/ Jason Hughs

	Name:	 	 Jason Hughs

	Title:	 	 DTC

	
	MAP PHARMACEUTICALS, INC., as Borrower
		
	By:	 	 /s/ Timothy S. Nelson

	Name:	 	 Timothy S. Nelson

	Title:	 	 President & CEO

SIGNATURE PAGE TO AMENDMENT TO LOAN AND SECURITY AGREEMENT (MAP)Symmetricom, Inc. 2010 Employee Stock Purchase Plan

 Exhibit 10.1 
 SYMMETRICOM, INC. 
 2010 EMPLOYEE STOCK PURCHASE PLAN 

(Amended and Restated as of February 18, 2011) 
 ARTICLE I. 
 ESTABLISHMENT OF THE PLAN 

The Symmetricom, Inc. 2010 Employee Stock Purchase Plan, as amended and restated herein, provides employees of Symmetricom, Inc. and its
Designated Subsidiaries with an opportunity to acquire a stock ownership interest in the Company pursuant to a plan which is intended to qualify as an “employee stock purchase plan” under Section 423 of the Internal Revenue Code of
1986, as amended. 
 ARTICLE II. 
 DEFINITIONS 
 Whenever the following terms are used in the Plan, they shall
have the meaning specified below unless the context clearly indicates to the contrary. The singular pronoun shall include the plural where the context so indicates. 
 2.1 “Administrator” shall mean the Committee (or the Board, to the extent that it administers the Plan). 
 2.2 “Board” shall mean the Board of Directors of the Company. 

2.3 “Code” shall mean the Internal Revenue Code of 1986, as amended. 

2.4 “Committee” shall mean the Compensation Committee of the Board (or such other committee of the Board which is
appointed to administer the Plan). 
 2.5 “Common Stock” shall mean shares of common stock of the Company.

 2.6 “Company” shall mean Symmetricom, Inc., a Delaware corporation. 

2.7 “Compensation” shall mean the regular straight-time earnings or base salary paid to an Eligible Employee by the
Company or any Designated Subsidiary before deduction for any salary deferral contributions made by the Eligible Employee to any tax-qualified retirement plan or nonqualified deferred compensation plan of the Company or any Designated Subsidiary,
but excluding all overtime payments, bonuses and other incentive-type payments, reimbursements, fringe benefits, or income recognized in connection with any compensatory equity-based awards. 

2.8 “Designated Subsidiary” shall mean the Subsidiaries that have been designated by the
Administrator from time to time in its sole discretion as eligible to participate in the Plan, including any Subsidiary in existence on the Effective Date and any Subsidiary formed or acquired following the Effective Date. 

 2.9 “Effective Date” shall mean the date the Plan was initially adopted by
the Board, subject to its approval by stockholders of the Company. 
 2.10 “Eligible Employee” shall mean an
Employee who (a) is customarily scheduled to work at least 20 hours per week, (b) is customarily employed for more than five (5) months in a calendar year, and (c) after the granting of the Option would not be deemed for purposes
of Section 423(b)(3) of the Code to possess 5% or more of the total combined voting power or value of all classes of stock of the Company or any Parent or Subsidiary. For purposes of clause (c), the rules of Section 424(d) of the Code with
regard to the attribution of stock ownership shall apply in determining the stock ownership of an individual, and stock which an Employee may purchase under outstanding options shall be treated as stock owned by the Employee. Notwithstanding the
foregoing, the Administrator may exclude from participation in the Plan as an Eligible Employee any Employee who is a citizen or resident of a foreign jurisdiction (without regard to whether they are also a citizen of the Unites States or a resident
alien (within the meaning of Section 7701(b)(1)(A) of the Code)) if either (i) the grant of the Option is prohibited under the laws of the jurisdiction governing such Employee, or (ii) compliance with the laws of the foreign
jurisdiction would cause the Plan or the Option to violate the requirements of Section 423 of the Code. 
 2.11
“Employee” shall mean any person who renders services to the Company or a Designated Subsidiary in the status of an employee within the meaning of Section 3401(c) of the Code. “Employee” shall not include any director
of the Company or a Designated Subsidiary who does not render services to the Company or a Designated Subsidiary in the status of an employee within the meaning of Section 3401(c) of the Code. For purposes of the Plan, the employment
relationship shall be treated as continuing intact while the individual is on sick leave or other leave of absence approved by the Company or Designated Subsidiary and meeting the requirements of Treasury Regulation Section 1.421-1(h)(2) Where
the period of leave exceeds three (3) months and the individual’s right to reemployment is not guaranteed either by statute or by contract, the employment relationship shall be deemed to have terminated on the first day immediately
following such three (3)-month period. 
 2.12 “Enrollment Date” shall mean the first day of each Offering
Period. 
 2.13 “Exercise Date” except as provided in Section 5.2, shall mean the last Trading Day of each
Offering Period. 
 2.14 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended. 

2.15 “Fair Market Value” means, as of any date, the value of Common Stock determined as follows: 

(a) If the Common Stock is listed on any established stock exchange or a national market system, including, without limitation, the New
York Stock Exchange, the Nasdaq Global Select Market or the Nasdaq Global Market, its Fair Market Value shall be the closing sales price for such stock (or the closing bid, if no sales were reported) as quoted on such exchange or system on the
Exercise Date, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; 

  
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 (b) If the Common Stock is regularly quoted by a recognized securities dealer but selling
prices are not reported, its Fair Market Value shall be the mean of the closing bid and asked prices for the Common Stock on the Exercise Date as reported in The Wall Street Journal or such other source as the Administrator deems reliable;

 (c) In the absence of an established market for the Common Stock, the Fair Market Value thereof shall be determined in good
faith by the Administrator. 
 2.16 “Offering Period” shall mean (a) the period commencing on
March 1, 2011 and ending on the last Trading Day of August 2011, and (b) thereafter, the six-month period commencing on the first Trading Day of each March and September. The duration and timing of Offering Periods may be changed by the
Administrator, in its sole discretion, provided that in no event may an Offering Period exceed twenty-seven (27) months in length. 
 2.17 “Option” shall mean the right to purchase shares of Common Stock pursuant to the Plan during each Offering Period. 

2.18 “Option Price” shall mean the purchase price of a share of Common Stock hereunder as provided in Section 4.2
below. 
 2.19 “Parent” shall mean any entity that is a parent corporation of the Company within the meaning of
Section 424(e) of the Code and the Treasury Regulations promulgated thereunder. 
 2.20 “Participant”
shall mean any Eligible Employee who elects to participate in the Plan. 
 2.21 “Plan” shall mean this
Symmetricom, Inc. 2010 Employee Stock Purchase Plan, as amended and restated herein and as may be further amended from time to time. 
 2.22 “Plan Account” shall mean a bookkeeping account established and maintained by the Company (or its designee) in the name of each Participant. 

2.23 “Subsidiary” shall mean any entity that is a subsidiary corporation of the Company within the meaning of
Section 424(f) of the Code and the Treasury Regulations promulgated thereunder. 
 2.24 “Trading Day”
shall mean a day on which national stock exchanges are open for trading. 
 ARTICLE III. 

PARTICIPATION 
 3.1 Eligibility. 
 (a) Any Eligible Employee who shall be employed by the
Company or a Designated Subsidiary on a given Enrollment Date for an Offering Period shall be eligible to participate in the Plan during such Offering Period, subject to the requirements of Articles IV and V, and the limitations imposed by
Section 423(b) of the Code and the Treasury Regulations thereunder. 

  
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 (b) No Eligible Employee shall be granted an Option under the Plan which provides such
Eligible Employee with rights to purchase stock under the Plan, together with options to purchase stock under all other employee stock purchase plans of the Company, any Parent or any Subsidiary which are subject to the Section 423 of the Code,
to accrue at a rate which exceeds $25,000 of Fair Market Value of such stock (determined at the time the option is granted) for each calendar year in which the Option is outstanding at any time. This limitation shall be applied in accordance with
Section 423(b)(8) of the Code and the Treasury Regulations thereunder. 
 3.2 Election to Participate; Payroll
Deductions 
 (a) Except as provided in Section 3.3, an Eligible Employee may participate in the Plan only by means of
payroll deduction. An Eligible Employee may elect to participate in the Plan by delivering to the Company by such time designated by the Administrator preceding the Enrollment Date for such Offering Period a payroll deduction authorization in such
manner as prescribed by the Administrator. 
 (b) An Eligible Employee shall designate on the payroll deduction authorization
form the percentage of his or her Compensation which he or she elects to have withheld for the purchase of Common Stock hereunder, which may be any whole percentage from 1% to 10% of the Participant’s Compensation. The Administrator may, for
future Offering Periods, increase or decrease the maximum percentage of a Participant’s Compensation which may be withheld for the purchase of Common Stock during an Offering Period or express the limit on payroll deductions for each
Participant as a fixed dollar amount. No Participant may increase or decrease the rate of payroll withholding during an Offering Period, provided, that any Participant may withdraw from the Plan during an Offering Period pursuant to Section 6.1
below. Amounts deducted from a Participant’s Compensation pursuant to this Section 3.2 shall be credited to the Participant’s Plan Account. 
 (c) A Participant’s election to participate in the Plan with respect to an Offering Period shall enroll such Participant in the Plan for each successive Offering Period at the same payroll deduction
percentage as in effect at the termination of the prior Offering Period, unless such Participant delivers to the Company a different election with respect to the successive Offering Period by such time and in such manner as is designated by the
Administrator for enrollment in the Plan for such successive Offering Period, or unless such Participant becomes ineligible for participation in the Plan. 
 3.3 Leave of Absence. During leaves of absence approved by the Company meeting the requirements of Treasury Regulation Section 1.421-1(h)(2) under the Code, a Participant may continue
participation in the Plan by making cash payments to the Company on his or her normal payday equal to his or her authorized payroll deduction. 

  
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 ARTICLE IV. 
 PURCHASE OF SHARES 
 4.1 Grant of Option. Subject to the limitations
of Section 3.1(b), each Participant participating in such Offering Period shall be granted an Option to purchase on the Exercise Date for such Offering Period (at the applicable Option Price) up to a number of shares of Common Stock determined
by dividing such Participant’s payroll deductions accumulated prior to such Exercise Date and retained in the Participant’s Plan Account on such Exercise Date by the applicable Option Price; provided that in no event shall a Participant be
permitted to purchase during each Offering Period more than one thousand two hundred fifty (1,250) shares of Common Stock (subject to any adjustment pursuant to Section 5.2); and, provided further, that in no event shall a Participant be
permitted to purchase during an twelve-month period more than two thousand five hundred (2,500) shares of Common Stock (subject to any adjustment pursuant to Section 5.2). The Administrator may, for future Offering Periods, increase or
decrease, in its absolute discretion, the maximum number of shares of Common Stock that a Participant may purchase during such future Offering Periods. The Option shall expire on the last Trading Day of such Offering Period immediately after the
automatic exercise of the Option in accordance with Section 4.3 hereof, unless such Option terminates earlier in accordance with Article V or VI. 
 4.2 Option Price. The Option Price for each share of Common Stock shall be the lesser of (a) eighty five percent (85%) of the Fair Market Value of such share on the first Trading Day of
an applicable Offering Period, or (b) eighty-five percent (85%) of the Fair Market Value of such share on the Exercise Date for an applicable Offering Period. 
 4.3 Purchase of Shares. 
 (a) On each Exercise Date on which he or she
remains an Eligible Employee, each Participant will automatically and without any action on his or her part be deemed to have exercised his or her Option to purchase at the Option Price the largest number of whole shares of Common Stock which can be
purchased with the amount in the Participant’s Plan Account as of such date. Any portion of a Participant’s Plan Account which was not applied to the purchase of shares of Common Stock on the Exercise Date shall be paid to such Participant
in one lump sum in cash as soon as reasonably practicable after such Exercise Date, without any interest thereon; provided, however, that to the extent that the unused balance in the Participant’s Plan Account consists of cash in lieu of
fractional shares of Common Stock remaining after the purchase of whole shares of Common Stock on the Exercise Date, the Administrator may, but shall not be required to, provide that such amount will be credited to such Participant’s account
and carried forward to the next Offering Period, unless the Participant has elected to withdraw from the Plan pursuant to Section 6.1 below. 
 (b) As soon as practicable following each Exercise Date, the number of shares of Common Stock purchased by such Participant pursuant to subsection (a) above will be delivered, in the Company’s
sole discretion, to either (i) the Participant, or (ii) an account established in the Participant’s name at a stock brokerage or other financial services firm designated by the Company. If the Company is required to obtain from any
commission or agency authority to issue any such shares of Common Stock, the Company will seek to obtain such authority. Inability of the Company to obtain from any such commission or agency authority which counsel for the Company deems necessary
for the lawful issuance of any such shares shall relieve the Company from liability to any Participant except to refund to him or her the amount withheld. 

  
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 (c) A Participant shall have the right at any time to request in writing a certificate or
certificates for all or a portion of the whole shares of Common Stock purchased hereunder. Upon receipt of a Participant’s written request for any such certificate, the Company shall (or shall cause its agent to), deliver any such certificate
to the Participant as soon as practicable thereafter. 
 4.4 Transferability of Rights. An Option granted under the Plan
shall not be transferable and is exercisable only by the Participant. No Option or interest or right to the Option shall be available to pay off any debts, contracts or engagements of the Participant or his or her successors in interest or shall be
subject to disposition by pledge, encumbrance, assignment or any other means whether such disposition be voluntary or involuntary or by operation of law by judgment, levy, attachment, garnishment or any other legal or equitable proceedings
(including bankruptcy), and any attempt at disposition of the Option shall have no effect. 
 ARTICLE V. 

SHARES SUBJECT TO THE PLAN 
 5.1 Common Stock Reserved. Subject to adjustment as provided in Section 5.2, the maximum number of shares of Common Stock that may be issued upon the exercise of Options granted under the Plan
shall be one million four hundred thousand (1,400,000). Shares of Common Stock made available for sale under the Plan may be authorized but unissued or reacquired shares reserved for issuance under the Plan. If and to the extent that any Option is
not exercised by a Participant for any reason, or if such Option shall terminate as provided herein, shares that have not been issued pursuant to such Option shall again become available for the purposes of this Plan. 

5.2 Adjustments Upon Changes in Capitalization, Dissolution, Liquidation, Merger or Asset Sale. 

(a) Changes in Capitalization. The number of shares of Common Stock which have been reserved for issuance under the Plan, as well
as the price per share and the number of shares of Common Stock covered by each Option under the Plan which has not yet been exercised, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock
resulting from a stock split, reverse stock split, stock dividend, combination or reclassification of the Common Stock, or any other increase or decrease in the number of shares of Common Stock effected without receipt of consideration by the
Company; provided, however, that conversion of any convertible securities of the Company shall not be deemed to have been “effected without receipt of consideration.” Such adjustment shall be made by the Administrator, whose
determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issuance by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price of shares of Common Stock subject to an Option. 

  
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 (b) Dissolution or Liquidation. In the event of the proposed dissolution or
liquidation of the Company, the Offering Period then in progress shall be shortened by setting a new Exercise Date (the “New Exercise Date”), and shall terminate immediately prior to the consummation of such proposed dissolution or
liquidation, unless provided otherwise by the Administrator. The New Exercise Date shall be before the date of the Company’s proposed dissolution or liquidation. The Administrator shall notify each Participant in writing, at least five
(5) business days prior to the New Exercise Date, that the Exercise Date for the Participant’s Option has been changed to the New Exercise Date and that the Participant’s Option shall be exercised automatically on the New Exercise
Date, unless prior to such date the Participant has withdrawn from the Offering Period as provided in Section 6.1 hereof. 

(c) Merger, Acquisition or Asset Sale. In the event of a sale of all or substantially all of the assets of the Company, an
acquisition of the Company or the merger of the Company with or into another corporation, each outstanding Option may be assumed or an equivalent Option substituted by the successor corporation or a parent or subsidiary of the successor corporation,
with appropriate adjustments as to the number and kind of shares and prices. In the event that the successor corporation (or a parent or subsidiary of the successor corporation) refuses to assume or substitute for the Option, any Offering Periods
then in progress shall be shortened by setting a New Exercise Date and any Offering Periods then in progress shall end on the New Exercise Date. The New Exercise Date shall be before the date of the applicable transaction. The Administrator shall
notify each Participant in writing, at least five (5) business days prior to the New Exercise Date, that the Exercise Date for the Participant’s Option has been changed to the New Exercise Date and that the Participant’s Option shall
be exercised automatically on the New Exercise Date, unless prior to such date the Participant has withdrawn from the Offering Period as provided in Section 6.1 hereof. 
 (d) Limitation on Adjustments. No adjustment or action described in this Section 5.2 or in any other provision of the Plan shall be effected to the extent that such adjustment or action would
cause the Plan to fail to satisfy the requirements of Section 423 of the Code. 
 5.3 Insufficient Shares. If the
Administrator determines that, on a given Exercise Date, the number of shares with respect to which Options are to be exercised may exceed the number of shares of Common Stock that remain available for issuance under the Plan on such date, the
Administrator shall make a pro rata allocation of the shares of Common Stock available for issuance on such Exercise Date in as uniform a manner as shall be practicable and as it shall determine in its sole discretion to be equitable among all
Participants exercising Options to purchase Common Stock on such Exercise Date, and the balance of the amount credited to a Participant’s Plan Account which was not applied to the purchase of shares of Common Stock shall be paid to such
Participant in one lump sum in cash as soon as reasonably practicable after such Exercise Date, without any interest thereon. 

5.4 Rights as a Stockholder. With respect to shares of Common Stock subject to an Option, a Participant shall not be deemed to be
a stockholder and shall not have any of the rights or privileges of a stockholder. A Participant shall have the rights and privileges of a stockholder when, but not until, such shares have been issued to him or her following the exercise of his or
her Option. 

  
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 ARTICLE VI. 
 TERMINATION OF PARTICIPATION 
 6.1 Cessation of Contributions; Voluntary
Withdrawal. 
 (a) A Participant may cease payroll deductions during an Offering Period by delivering written notice of such
cessation to the Company in such form and at such time prior to the Exercise Date for such Offering Period as may be established by the Administrator. Upon any such cessation, the Participant may elect either to withdraw from the Plan pursuant to
subsection (b) below or to have amounts credited to his or her Plan Account held in the Plan for the purchase of Common Stock pursuant to Section 4.3 for such Offering Period. Upon receipt of a notice of withdrawal from the Plan,
the Participant’s payroll deduction authorization and his or her Option to purchase under the Plan shall terminate. 
 (b)
A participant’s withdrawal from an Offering Period shall not have any effect upon his or her eligibility to participate in any similar plan which may hereafter be adopted by the Company or in succeeding Offering Periods which commence after the
termination of the Offering Period from which the Participant withdraws. 
 (c) A Participant who ceases contributions to the
Plan during any Offering Period shall not be permitted to resume contributions to the Plan during that Offering Period. 
 6.2
Termination of Eligibility. Upon a Participant’s ceasing to be an Eligible Employee, for any reason, he or she shall be deemed to have elected to withdraw from the Plan and the Participant’s Plan Account shall be paid to such
Participant or, in the case of his or her death, to the person or persons entitled thereto under Section 7.2 hereof, as soon as reasonably practicable and such Participant’s Option for the Offering Period shall be automatically terminated.

 ARTICLE VII. 
 GENERAL PROVISIONS 
 7.1 Administration. 

(a) It shall be the duty of the Administrator to conduct the general administration of the Plan in accordance with the provisions of the
Plan. The Administrator shall have the power to interpret the Plan and the terms of the Options and to adopt such rules for the administration, interpretation, and application of the Plan as are consistent therewith and to interpret, amend or revoke
any such rules. The Administrator at its option may utilize the services of an agent to assist in the administration of the Plan including establishing and maintaining an individual securities account under the Plan for each Participant. In its
absolute discretion, the Board may at any time and from time to time exercise any and all rights and duties of the Administrator under the Plan. 

  
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 (b) All expenses and liabilities incurred by the Administrator in connection with the
administration of the Plan shall be borne by the Company. The Administrator may employ attorneys, consultants, accountants, appraisers, brokers or other persons. The Administrator, the Company and its officers and directors shall be entitled to rely
upon the advice, opinions or valuations of any such persons. All actions taken and all interpretations and determinations made by the Administrator in good faith shall be final and binding upon all Participants, the Company and all other interested
persons. No member of the Administrator shall be personally liable for any action, determination or interpretation made in good faith with respect to the Plan or the Options, and all members of the Administrator shall be fully protected by the
Company in respect to any such action, determination, or interpretation. 
 7.2 Designation of Beneficiary. 

(a) A Participant may file a written designation of a beneficiary who is to receive any shares and cash, if any, from the
Participant’s Plan Account under the Plan in the event of such Participant’s death subsequent to an Exercise Date on which the Option is exercised but prior to delivery to such Participant of such shares and cash. In addition, a
Participant may file a written designation of a beneficiary who is to receive any cash from the Participant’s Plan Account in the event of such Participant’s death prior to exercise of the Option. If a Participant is married and the
designated beneficiary is not the spouse, spousal consent shall be required for such designation to be effective. 
 (b) Such
designation of beneficiary may be changed by the Participant at any time by written notice to the Administrator. In the event of the death of a Participant and in the absence of a beneficiary validly designated under the Plan who is living at the
time of such Participant’s death, the Company shall deliver such shares and/or cash to the executor or administrator of the estate of the Participant, or if no such executor or administrator has been appointed (to the knowledge of the Company),
the Company, in its discretion, may deliver such shares and/or cash to the spouse or to any one or more dependents or relatives of the Participant, or if no spouse, dependent or relative is known to the Company, then to such other person as the
Company may designate. 
 7.3 Reports. Individual accounts shall be maintained for each Participant in the Plan.
Statements of Plan Accounts shall be given to Participants at least annually, which statements shall set forth the amounts of payroll deductions, the Option Price, the number of shares purchased and the remaining cash balance, if any. 

7.4 No Right to Continued Employment. Nothing in the Plan nor an Employee’s participation herein shall be deemed to create a
contract of employment, any right of continued employment or in any way affect the right of the Company or a Subsidiary to terminate an Employee at any time with or without cause. 

7.5 Amendment and Termination of the Plan 
 (a) The Board or the Committee may amend, suspend or terminate the Plan at any time and from time to time; provided, however, that an amendment of the Plan shall be subject to stockholder approval only to
the extent necessary to satisfy the requirements of Section 423 of the Code or any other applicable laws, regulations or rules. Except as otherwise provided in the Plan, including, without limitation, Article V or this Article VII, no
amendment, suspension or termination may make any change in any outstanding Option which adversely affects the rights of any Participant without the consent of such Participant, or except as necessary to comply with any laws or governmental
regulations, or except as necessary to ensure that the Plan and/or Options granted under the Plan comply with the requirements of Section 423 of the Code. 

  
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 (b) Without stockholder consent and without regard to whether any participant rights may be
considered to have been “adversely affected,” the Administrator shall be entitled to change the Offering Periods, limit the frequency and/or number of changes in the amount withheld during an Offering Period, establish the exchange ratio
applicable to amounts withheld in a currency other than U.S. dollars, permit payroll withholding in excess of the amount designated by a Participant in order to adjust for delays or mistakes in the Company’s processing of properly completed
withholding elections, establish reasonable waiting and adjustment periods and/or accounting and crediting procedures to ensure that amounts applied toward the purchase of Common Stock for each Participant properly correspond with amounts withheld
from the Participant’s Compensation, and establish such other limitations or procedures as the Administrator determines in its sole discretion advisable which are consistent with the Plan and Section 423 of the Code. 

(c) Upon termination of the Plan, the balance in each Participant’s Plan Account shall be refunded as soon as practicable after such
termination, without any interest thereon. 
 7.6 Use of Funds; No Interest Paid. All funds received or held by the
Company under the Plan will be included in the general funds of the Company free of any trust or other restriction and may be used for any corporate purpose. No interest will be paid to any Participant or credited under the Plan. 

7.7 Term; Approval by Stockholders. Unless earlier terminated by the Board or the Committee, the Plan shall terminate at the time
that all of the shares of Common Stock reserved for issuance under the Plan, as increased and/or adjusted from time to time, have been issued under the terms of the Plan. No Option may be granted during any period of suspension of the Plan or after
termination of the Plan. The Plan will be submitted for the approval of the Company’s stockholders within 12 months after the date of the Board’s initial adoption of the Plan. Options may be granted prior to such stockholder approval;
provided, however, that such Options shall not be exercisable prior to the time when the Plan is approved by the stockholders; provided further that if such approval has not been obtained by the end of said 12-month period, all Options previously
granted under the Plan shall thereupon be canceled and become null and void. 
 7.8 Effect Upon Other Plans. The adoption
of the Plan shall not affect any other compensation or incentive plans in effect for the Company or any Subsidiary. Nothing in the Plan shall be construed to limit the right of the Company or any Subsidiary (a) to establish any other forms of
incentives or compensation for Employees of the Company or any Subsidiary, or (b) to grant or assume Options otherwise than under the Plan in connection with any proper corporate purpose, including, but not by way of limitation, the grant or
assumption of options in connection with the acquisition, by purchase, lease, merger, consolidation or otherwise, of the business, stock or assets of any corporation, firm or association. 

  
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 7.9 Conformity to Securities Laws. Notwithstanding any other provision of the Plan,
the Plan and the participation in the Plan by any individual who is then subject to Section 16 of the Exchange Act shall be subject to any additional limitations set forth in any applicable exemption rule under Section 16 of the Exchange
Act (including any amendment to Rule 16b-3 of the Exchange Act) that are requirements for the application of such exemptive rule. To the extent permitted by applicable law, the Plan shall be deemed amended to the extent necessary to conform to such
applicable exemptive rule. 
 7.10 Notice of Disposition of Shares. The Company may require any Participant to give the
Company prompt notice of any disposition of shares of Common Stock acquired pursuant to the Plan, within two years after the applicable Enrollment Date or within one year after the applicable Exercise Date with respect to such shares. The Company
may direct that the certificates evidencing shares acquired pursuant to the Plan refer to such requirement. 
 7.11 Tax
Withholding. The Company shall be entitled to require payment in cash or deduction from other compensation payable to each Participant of any sums required by federal, state or local tax law to be withheld with respect to any purchase of shares
of Common Stock under the Plan or any sale of such shares. 
 7.12 Governing Law. The Plan and all rights and obligations
thereunder shall be construed and enforced in accordance with the laws of the State of Delaware. 
 7.13 Notices. All
notices or other communications by a participant to the Company under or in connection with the Plan shall be deemed to have been duly given when received in the form specified by the Company at the location, or by the person, designated by the
Company for the receipt thereof. 
 7.14 Conditions To Issuance of Shares. The Company shall not be required to issue or
deliver any certificate or certificates for shares of Common Stock purchased upon the exercise of Options prior to fulfillment of all the following conditions: 
 (a) The admission of such shares to listing on all stock exchanges, if any, on which is then listed; and 
 (b) The completion of any registration or other qualification of such shares under any state or federal law or under the rulings or regulations of the Securities and Exchange Commission or any other
governmental regulatory body, which the Administrator shall, in its absolute discretion, deem necessary or advisable; and 
 (c)
The obtaining of any approval or other clearance from any state or federal governmental agency which the Administrator shall, in its absolute discretion, determine to be necessary or advisable; and 

  
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 (d) The payment to the Company of all amounts which it is required to withhold under
federal, state or local law upon exercise of the Option; and 
 (e) The lapse of such reasonable period of time following the
exercise of the Option as the Administrator may from time to time establish for reasons of administrative convenience. 
 7.15
Equal Rights and Privileges. All Eligible Employees of the Company (or of any Designated Subsidiary) will have equal rights and privileges under the Plan so that the Plan qualifies as an “employee stock purchase plan” within the
meaning of Section 423 of the Code or applicable Treasury Regulations thereunder. Any provision of the Plan that is inconsistent with Section 423 or applicable Treasury Regulations thereunder will, without further act or amendment by the
Company, the Board or the Administrator, be reformed to comply with the equal rights and privileges requirement of Section 423 or applicable Treasury Regulations thereunder. 

* * * * * * 

The Symmetricom, Inc. 2010 Employee Stock Purchase Plan was initially duly approved by the Board of Directors of Symmetricom, Inc. on
August 13, 2010. 
 The Symmetricom, Inc. 2010 Employee Stock Purchase Plan was duly approved by the stockholders of
Symmetricom, Inc. on October 29, 2010. 
 I hereby certify that the foregoing amendment and restatement of the Symmetricom,
Inc. 2010 Employee Stock Purchase Plan was duly ratified and approved by the Board of Directors of Symmetricom, Inc. on April 29, 2011. 
 Executed on this 29th day of April, 2011. 
  

	
	 /s/ Justin R. Spencer

	Corporate Secretary

  
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