Document:

Employee Stock Purchase Plan

 Exhibit 10.5 
  
 RENOVIS, INC. 
  
 EMPLOYEE STOCK PURCHASE PLAN 
  
 Renovis, Inc., a Delaware corporation (the “Company”), hereby adopts the Renovis, Inc. Employee Stock Purchase Plan (the
“Plan”), effective as of the Effective Date (as defined herein). 
  
 1.    Purpose. The purposes of the Plan are as follows: 
  
 (a)    To assist employees of the Company and its Designated Subsidiaries (as defined below) in acquiring a stock ownership interest
in the Company pursuant to a plan which is intended to qualify as an “employee stock purchase plan” within the meaning of Section 423(b) of the Internal Revenue Code of 1986, as amended. 
  
 (b)    To help employees provide for their future
security and to encourage them to remain in the employment of the Company and its Designated Subsidiaries. 
  
 2.    Definitions. 
  
 (a)    “Administrator” shall mean the administrator of the Plan, as determined pursuant to Section 14 hereof.

  
 (b)    “Board” shall mean
the Board of Directors of the Company. 
  
 (c)    “Code” shall mean the Internal Revenue Code of 1986, as amended. 
  
 (d)    “Committee” shall mean the committee appointed to administer the Plan pursuant to Section 14 hereof.

  
 (e)    “Common Stock”
shall mean the common stock of the Company. 
  
 (f)    “Company” shall mean Renovis, Inc., a Delaware corporation, and any successor by merger, consolidation or otherwise. 
  
 (g)    “Compensation” shall mean all base straight time gross earnings and commissions,
exclusive of payments for overtime, shift premium, incentive compensation, incentive payments, bonuses, expense reimbursements, fringe benefits and other compensation. 
  
 (h)    “Designated Subsidiary” shall mean any Subsidiary which has been designated by
the Administrator from time to time in its sole discretion as eligible to participate in the Plan. The Administrator may designate, or terminate the designation of, a subsidiary as a Designated Subsidiary without the approval of the stockholders of
the Company. 
  
 (i)    “Effective
Date” shall mean the date on which the Company’s Registration Statement on Form S-1 filed with respect to the Company’s initial public offering becomes effective. 
  

 (j)    “Eligible Employee” shall mean an Employee of the Company or
a Designated Subsidiary: (i) who does not, immediately after the Option is granted, own stock possessing five percent (5%) or more of the total combined voting power or value of all classes of stock of the Company, a Parent or a Subsidiary (as
determined under Section 423(b)(3) of the Code); (ii) whose customary employment is for more than twenty (20) hours per week; and (iii) whose customary employment is for more than five (5) months in any calendar year. For purposes of clause (i), 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. 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 1.421-7(h)(2). Where the period of leave exceeds ninety (90) days 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 ninety-first (91st) day of such leave. 
  
 (k)    “Employee” shall mean any person
who renders services to the Company or a Subsidiary in the status of an employee within the meaning of Code Section 3401(c). “Employee” shall not include any director of the Company or a Subsidiary who does not render services to the
Company or a Subsidiary in the status of an employee within the meaning of Code Section 3401(c). 
  
 (l)    “Enrollment Date” shall mean the first Trading Day of each Offering Period. 
  
 (m)    “Exercise Date” shall mean the
last Trading Day of each Purchase Period. 
  
 (n)    “Fair Market Value” shall mean, as of any date, the value of Common Stock determined as follows: 
  
 (i)    If the Common Stock is listed on any established stock exchange or a national market system, including without limitation the
Nasdaq National Market or The Nasdaq SmallCap Market of The Nasdaq Stock 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 for the last
market trading day prior to the date of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; 
  

(ii)    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 date prior to the date of determination as reported in The Wall Street Journal or such other source as the Administrator deems reliable;

  
 (iii)    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; or 
  
 (iv)    For purposes of the first Offering Period under the Plan, the Fair Market Value shall be the initial price to the public as
set forth in the final prospectus included 
  

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 within the registration statement in Form S-1 filed with the Securities and Exchange Commission for the initial public
offering of the Company’s Common Stock. 
  
 (o)    “Offering Period” shall mean (i) the period commencing on the Effective Date and ending on the last Trading Day on or before the June 1 or December 1 following the Effective Date that is at least
eighteen (18) months but not more than twenty-four (24) months following the Effective Date, and (ii) subject to Section 24, each twenty-four (24) month period commencing on any December 1 or June 1 following the Effective Date and terminating on
the last Trading Day in the periods ending twenty-four (24) months later. The duration and timing of Offering Periods may be changed pursuant to Section 4 of this Plan. 
  
 (p)    “Parent” means any corporation, other than the Company, in an unbroken chain of
corporations ending with the Company if, at the time of the determination, each of the corporations other than the Company owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other corporations
in such chain. 
  
 (q)    “Plan” shall mean this Renovis, Inc. Employee Stock Purchase Plan. 
  
 (r)    “Purchase Period” shall mean the approximately six (6) month period commencing after one Exercise Date and
ending with the next Exercise Date, except that the first Purchase Period of any Offering Period shall commence on the Enrollment Date and end with the next Exercise Date. Notwithstanding the foregoing, the first Purchase Period with respect to the
initial Offering Period under the Plan shall end on the last Trading Day on or before the next occurring December 1 or June 1, whichever is later, following the Effective Date and such period may be more than six-months in duration. 
  
 (s)    “Purchase Price” shall mean 85%
of the Fair Market Value of a share of Common Stock on the Enrollment Date or on the Exercise Date, whichever is lower; provided, however, that the Purchase Price may be adjusted by the Administrator pursuant to Section 20;
provided, further, that the Purchase Price shall not be less than the par value of a share of Common Stock. 
  
 (t)    “Subsidiary” shall mean any corporation, other than the Company, in an unbroken chain of corporations
beginning with the Company if, at the time of the determination, each of the corporations other than the last corporation in an unbroken chain owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the
other corporations in such chain. 
  
 (u)    “Trading Day” shall mean a day on which national stock exchanges and the Nasdaq System are open for trading. 
  
 3.    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 
  

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 participate in the Plan during such Offering Period, subject to the requirements of Section 5 and the limitations imposed
by Section 423(b) of the Code. 
  
 (b)    Each
person who, during the course of an Offering Period, first becomes an Eligible Employee subsequent to the Enrollment Date will be eligible to become a participant in the Plan on the first day of the first Purchase Period following the day on which
such person becomes an Eligible Employee, subject to the requirements of Section 5 and the limitations imposed by Section 423(b) of the Code. 
  
 (c)    No Eligible Employee shall be granted an option under the Plan which permits his rights to purchase stock under the Plan, and
to purchase stock under all other employee stock purchase plans of the Company, any Parent or any Subsidiary subject to the Section 423, 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. For purpose of the limitation imposed by this subsection, the right to purchase stock under an option accrues when the option (or any portion thereof) first becomes
exercisable during the calendar year, the right to purchase stock under an option accrues at the rate provided in the option, but in no case may such rate exceed $25,000 of fair market value of such stock (determined at the time such option is
granted) for any one calendar year, and a right to purchase stock which has accrued under an option may not be carried over to any option. This limitation shall be applied in accordance with Section 423(b)(8) of the Code and the Treasury Regulations
thereunder. 
  
 4.    Offering Periods.
Subject to Section 24, the Plan shall be implemented by consecutive, overlapping Offering Periods which shall continue until the Plan expires or is terminated in accordance with Section 20 hereof. The Administrator shall have the power to change the
duration of Offering Periods (including the commencement dates thereof) with respect to future offerings without shareholder approval if such change is announced at least five (5) days prior to the scheduled beginning of the first Offering Period to
be affected thereafter. 
  
 5.    Participation. 
  
 (a)    Each Eligible Employee who is employed by the Company or a Designated Subsidiary on the calendar day immediately preceding the Effective Date shall automatically become a participant in the Plan with respect to
the first Offering Period. Each such participant shall be granted an option to purchase shares of Common Stock and shall be enrolled in such first Offering Period to the extent of twenty percent (20%) of his or her Compensation for the pay days
during the first Offering Period (or, if less, the maximum amount of contributions permitted to be made by such participant for such Offering Period by payroll deduction under the terms of this Plan). Participants wishing to purchase shares of
Common Stock during the first Offering Period shall do so by making a lump sum cash payment to the Company not later than ten (10) calendar days before each Exercise Date of such Offering Period, and each such payment may be made in an amount not
exceeding twenty percent (20%) of such participant’s Compensation for the pay days occurring during such Offering Period and occurring prior to such lump sum payment; provided, however, that such participant shall not be required
to make such lump sum cash payments, or exercise all or any portion of such option to purchase shares of Common Stock by making such lump sum payments. Following the Effective Date, each such participant may, during the period designated from time
to 
  

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 time by the Administrator for such purpose, elect to make such contributions (or a lesser amount of contributions) for
the first Offering Period by payroll deductions in accordance with Section 6, in lieu of making contributions in such lump sum cash payments under this subsection (a), or may elect to make no contributions for such Offering Period; provided,
however, that, to make contributions by payroll deductions, such participant must complete the form of subscription agreement provided by the Company for the first Offering Period under this Plan. If (i) during such Offering Period, such a
participant elects to make contributions by payroll deduction, or elects to make no contributions for such Offering Period, or (ii) on or prior to the tenth (10th) calendar day before the last Exercise Date of such Offering Period, such a participant fails to make any lump sum cash payment, such participant shall be deemed to have elected not to make
contributions by lump sum payment with respect to such first Offering Period. Except as described in subsection (e) below, a participant may not make contributions by lump sum payment for any Offering Period other than the first Offering
Period. 
  
 (b)    Following the first
Offering Period, an Eligible Employee may become a participant in the Plan by completing a subscription agreement authorizing payroll deductions in the form of Exhibit A to this Plan and filing it with the Company’s payroll office fifteen (15)
days (or such shorter or longer period as may be determined by the Administrator, in its sole discretion) prior to the applicable Enrollment Date. 
  
 (c)    Each person who, during the course of an Offering Period, first becomes an Eligible Employee subsequent to the Enrollment Date
will be eligible to become a participant in the Plan on the first day of the first Purchase Period following the day on which such person becomes an Eligible Employee. Such person may become a participant in the Plan by completing a subscription
agreement authorizing payroll deductions in the form of Exhibit A to this Plan and filing it with the Company’s payroll office fifteen (15) days (or such shorter or longer period as may be determined by the Administrator, in its sole
discretion) prior to the first day of any Purchase Period during the Offering Period in which such person becomes an Eligible Employee. The rights granted to such participant shall have the same characteristics as any rights originally granted
during that Offering Period except that the first day of the Purchase Period in which such person initially participates in the Plan shall be the “Enrollment Date” for all purposes for such person, including determination of the Purchase
Price. 
  
 (d)    Except as provided in
subsection (a), payroll deductions for a participant shall commence on the first payroll following the Enrollment Date and shall end on the last payroll in the Offering Period to which such authorization is applicable, unless sooner terminated by
the participant as provided in Section 10 hereof.  
  
 (e)    During a leave of absence approved by the Company or a Subsidiary and meeting the requirements of Treasury Regulation Section 1.421-7(h)(2), a participant may continue to participate in the Plan by making cash
payments to the Company on each pay day equal to the amount of the participant’s payroll deductions under the Plan for the pay day immediately preceding the first day of such participant’s leave of absence. If a leave of absence is
unapproved or fails to meet the requirements of Treasury Regulation Section 1.421-7(h)(2), the participant will cease automatically to participate in the Plan. In such event, the company will automatically cease to deduct the participant’s
payroll under the Plan. The Company will pay to the participant his or her 
  

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 total payroll deductions for the Purchase Period, in cash in one lump sum (without interest), as soon as practicable
after the participant ceases to participate in the Plan. 
  
 (f)    A participant’s completion of a subscription agreement will enroll such participant in the Plan for each successive Purchase Period and each subsequent Offering Period on the terms contained therein until the
participant either submits a new subscription agreement, withdraws from participation under the Plan as provided in Section 10 hereof or otherwise becomes ineligible to participate in the Plan. 
  
 6.    Payroll Deductions. 
  
 (a)    At the time a participant files his or her
subscription agreement, he or she shall elect to have payroll deductions made on each pay day during the Offering Period in an amount from one percent (1%) to twenty percent (20%) of the Compensation which he or she receives on each pay day during
the Offering Period. 
  
 (b)    All payroll
deductions made for a participant shall be credited to his or her account under the Plan and shall be withheld in whole percentages only. Except as described in Section 5(a) hereof, a participant may not make any additional payments into such
account. 
  
 (c)    A participant may
discontinue his or her participation in the Plan as provided in Section 10 hereof, or may increase or decrease the rate of his or her payroll deductions during the Offering Period by completing or filing with the Company a new subscription agreement
authorizing a change in payroll deduction rate. The Administrator may, in its discretion, limit the number of participation rate changes during any Offering Period. The change in rate shall be effective with the first full payroll period following
five (5) business days after the Company’s receipt of the new subscription agreement (or such shorter or longer period as may be determined by the Administrator, in its sole discretion). 
  
 (d)    Notwithstanding the foregoing, to the extent
necessary to comply with Section 423(b)(8) of the Code and Section 3(c) hereof, a participant’s payroll deductions may be decreased to zero percent (0%) at any time during a Purchase Period. 
  
 (e)    At the time the option is exercised, in whole or
in part, or at the time some or all of the Company’s Common Stock issued under the Plan is disposed of, the participant must make adequate provision for the Company’s federal, state, or other tax withholding obligations, if any, which
arise upon the exercise of the option or the disposition of the Common Stock. At any time, the Company may, but shall not be obligated to, withhold from the participant’s compensation the amount necessary for the Company to meet applicable
withholding obligations, including any withholding required to make available to the Company any tax deductions or benefits attributable to sale or early disposition of Common Stock by the Employee. 
  
 7.    Grant of Option. On the Enrollment Date of
each Offering Period, each Eligible Employee participating in such Offering Period shall be granted an option to purchase on each Exercise Date during such Offering Period (at the applicable Purchase Price) up to a number of shares of the
Company’s Common Stock determined by dividing such participant’s payroll 
  

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 deductions accumulated prior to such Exercise Date and retained in the participant’s account as of the Exercise Date
by the applicable Purchase Price; provided, however, that in no event shall a participant be permitted to purchase during each Offering Period more than 800,000 shares of the Company’s Common Stock (subject to any adjustment
pursuant to Section 19) and during each Purchase Period more than 200,000 shares of the Company’s Common Stock (subject to any adjustment pursuant to Section 19); and provided, further, that such purchase shall be subject to the
limitations set forth in Sections 3(c) and 13 hereof. The Administrator may, for future Offering Periods, increase or decrease, in its absolute discretion, the maximum number of shares of the Company’s Common Stock a participant may purchase
during each Purchase Period and Offering Period. Exercise of the option shall occur as provided in Section 8 hereof, unless the participant has withdrawn pursuant to Section 10 hereof or otherwise becomes ineligible to participate in the Plan. The
option shall expire on the last day of the Offering Period. 
  
 8.    Exercise of Option. 
  
 (a)    Unless a participant withdraws from the Plan as provided in Section 10 hereof or otherwise becomes ineligible to participate in the Plan, his or her option for the purchase of shares shall be exercised
automatically on the Exercise Date, and the maximum number of full shares subject to the option shall be purchased for such participant at the applicable Purchase Price with the accumulated payroll deductions in his or her account. No fractional
shares shall be purchased; any payroll deductions accumulated in a participant’s account which are not sufficient to purchase a full share shall be retained in the participant’s account for the subsequent Purchase Period or Offering
Period. During a participant’s lifetime, a participant’s option to purchase shares hereunder is exercisable only by him or her. 
  
 (b)    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 (i) the number of shares of Common Stock that were available for sale under the Plan on the Enrollment Date of the applicable Offering Period, or (ii) the number of shares available for sale under the Plan on such Exercise Date,
the Administrator may in its sole discretion (x) provide that the Company shall make a pro rata allocation of the shares of Common Stock available for purchase on such Enrollment Date or Exercise Date, as applicable, 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 continue all Offering Periods then in effect, or (y) provide that the
Company shall make a pro rata allocation of the shares available for purchase on such Enrollment Date or Exercise Date, as applicable, 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 terminate any or all Offering Periods then in effect pursuant to Section 20 hereof. The Company may make pro rata allocation of the shares available on the
Enrollment Date of any applicable Offering Period pursuant to the preceding sentence, notwithstanding any authorization of additional shares for issuance under the Plan by the Company’s shareholders subsequent to such Enrollment Date. The
balance of the amount credited to the account of each participant which has not been applied to the purchase of shares of stock shall be paid to such participant in one lump sum in cash as soon as reasonably practicable after the Exercise Date,
without any interest thereon. 
  

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 9.    Deposit of Shares. As promptly as practicable after each Exercise Date
on which a purchase of shares occurs, the Company may arrange for the deposit, into each participant’s account with any broker designated by the Company to administer this Plan, of the number of shares purchased upon exercise of his or her
option. 
  
 10.    Withdrawal.

  
 (a)    A participant may withdraw all but
not less than all of the payroll deductions credited to his or her account and not yet used to exercise his or her option under the Plan at any time by giving written notice to the Company in the form of Exhibit A to this Plan. All of the
participant’s payroll deductions credited to his or her account during the Offering Period shall be paid to such participant as soon as reasonably practicable after receipt of notice of withdrawal and such participant’s option for the
Offering Period shall be automatically terminated, and no further payroll deductions for the purchase of shares shall be made for such Offering Period. If a participant withdraws from an Offering Period, payroll deductions shall not resume at the
beginning of the succeeding Offering Period unless the participant delivers to the Company a new subscription agreement. 
  
 (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. 
  
 11.    Termination of Employment. 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 payroll deductions credited to such participant’s account during the Offering Period shall be
paid to such participant or, in the case of his or her death, to the person or persons entitled thereto under Section 15 hereof, as soon as reasonably practicable and such participant’s option for the Offering Period shall be automatically
terminated. 
  
 12.    Interest. No
interest shall accrue on the payroll deductions or lump sum contributions of a participant in the Plan. 
  
 13.    Shares Subject to Plan. 
  
 (a)    Subject to adjustment upon changes in capitalization of the Company as provided in Section 19 hereof, the maximum number of
shares of the Company’s Common Stock which shall be made available for sale under the Plan shall be 2,750,000 shares, plus an annual increase to be added on each January 1 during the term of the Plan equal to the least of (i) 875,000 shares,
(ii) .75% of the Company’s outstanding shares on such date or (iii) a lesser amount determined by the Board. If any right granted under the Plan shall for any reason terminate without having been exercised, the Common Stock not purchased under
such right shall again become available for issuance under the Plan. The stock subject to the Plan may be unissued shares or reacquired shares, bought on the market or otherwise. 
  

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 (b)    With respect to shares of stock subject to an option granted under the Plan, a
participant shall not be deemed to be a stockholder of the Company, and the participant shall not have any of the rights or privileges of a stockholder, until such shares have been issued to the participant or his or her nominee following exercise
of the participant’s option. No adjustments shall be made for dividends (ordinary or extraordinary, whether in cash securities, or other property) or distribution or other rights for which the record date occurs prior to the date of such
issuance, except as otherwise expressly provided herein. 
  
 14.    Administration. 
  
 (a)    The Plan shall be administered by the Board unless and until the Board delegates administration to a Committee as set forth below. The Board may delegate administration of the Plan to a Committee comprised of two
or more members of the Board, each of whom is a “non-employee director” within the meaning of Rule 16b-3 which has been adopted by the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, and which is
otherwise constituted to comply with applicable law, and the term “Committee” shall apply to any persons to whom such authority has been delegated. If administration is delegated to a Committee, the Committee shall have, in connection with
the administration of the Plan, the powers theretofore possessed by the Board, including the power to delegate to a subcommittee any of the administrative powers the Committee is authorized to exercise, subject, however, to such resolutions, not
inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. Each member of the Committee shall serve for a term commencing on a date specified by the Board and continuing until the member dies or resigns or is
removed from office by the Board. References in this Plan to the “Administrator” shall mean the Board unless administration is delegated to a Committee or subcommittee, in which case references in this Plan to the Administrator shall
thereafter be to the Committee or subcommittee. 
  
 (b)    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. 
  
 (c)    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, with the approval of the Board, 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 Board 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 Board shall be fully protected by the Company in respect to any such action, determination, or interpretation. 
  
  

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 15.    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 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 account under the Plan 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 Company. 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. 
  
 16.    Transferability. Neither payroll deductions credited to a participant’s account nor
any rights with regard to the exercise of an option or to receive shares under the Plan may be assigned, transferred, pledged or otherwise disposed of in any way (other than by will, the laws of descent and distribution or as provided in Section 15
hereof) by the participant. Any such attempt at assignment, transfer, pledge or other disposition shall be without effect, except that the Company may treat such act as an election to withdraw funds from an Offering Period in accordance with Section
10 hereof. 
  
 17.    Use of Funds. All
payroll deductions received or held by the Company under the Plan may be used by the Company for any corporate purpose, and the Company shall not be obligated to segregate such payroll deductions. 
  
 18.    Reports. Individual accounts shall be
maintained for each participant in the Plan. Statements of account shall be given to participating Employees at least annually, which statements shall set forth the amounts of payroll deductions, the Purchase Price, the number of shares purchased
and the remaining cash balance, if any. 
  
 19.    Adjustments Upon Changes in Capitalization, Dissolution, Liquidation, Merger or Asset Sale. 
  
 (a)    Changes in Capitalization. Subject to any required action by the shareholders of the Company, the number of shares of
Common Stock which have been authorized for issuance under the Plan but not yet placed under option, the maximum number of shares each participant may purchase each Purchase Period (pursuant to Section 7), 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 
  

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 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. 
  
 (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 ten (10) 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 10 hereof. 
  
 (c)    Merger or Asset Sale. In the event of a
proposed sale of all or substantially all of the assets of the Company, or the merger of the Company with or into another corporation, each outstanding option shall be assumed or an equivalent option substituted by the successor corporation or a
Parent or Subsidiary of the successor corporation. In the event that the successor corporation refuses to assume or substitute for the option, any Purchase 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 Company’s proposed sale or merger. The Administrator shall notify each participant in writing, at least ten (10) 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 10 hereof. 
  
 20.    Amendment or Termination. 
  
 (a)    The Board may at any time and for any reason terminate or amend the Plan. Except as provided in Section 19 hereof, no such termination can affect options previously granted, provided that an
Offering Period may be terminated by the Board if the Board determines that the termination of the Offering Period or the Plan is in the best interests of the Company and its shareholders. Except as provided in Section 19 and this Section 20 hereof,
no amendment may make any change in any option theretofore granted which adversely affects the rights of any participant without the consent of such participant. To the extent necessary to comply with Section 423 of the Code (or any successor rule
or provision or any other applicable law, regulation or stock exchange rule), the Company shall obtain stockholder approval in such a manner and to such a degree as required. 
  

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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. 
  
 (c)    In the event the Board determines that the ongoing
operation of the Plan may result in unfavorable financial accounting consequences, the Board may, in its discretion and, to the extent necessary or desirable, modify or amend the Plan to reduce or eliminate such accounting consequence including, but
not limited to: 
  
 (i)    altering the
Purchase Price for any Offering Period including an Offering Period underway at the time of the change in Purchase Price; 
  
 (ii)    shortening any Offering Period so that the Offering Period ends on a new Exercise Date, including an Offering Period underway
at the time of the Administrator action; and 
  
 (iii)    allocating shares. 
  
 Such
modifications or amendments shall not require stockholder approval or the consent of any Plan participants. 
  
 21.    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. 
  
 22.    Conditions To Issuance of Shares. The Company shall not be required to issue or deliver
any certificate or certificates for shares of 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 
  

 12 

 (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 
  
 (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. 
  

23.    Term of Plan. The Plan shall become effective on the Effective Date. Subject to approval by the stockholders of the
Company in accordance with this Section, the Plan shall be in effect until the tenth (10th) anniversary of the date
of the initial adoption of the Plan by the Board, unless sooner terminated under Section 20 hereof. The Plan shall be submitted for the approval of the Company’s stockholders within twelve (12) months after the date of the initial adoption of
the Plan by the Board. 
  
 24.    Automatic
Transfer to Low Price Offering Period. To the extent permitted by any applicable laws, regulations, or stock exchange rules, if the Fair Market Value of the Common Stock on any Exercise Date in an Offering Period is lower than the Fair Market
Value of the Common Stock on the Enrollment Date of such Offering Period, then (i) a new twenty-four (24) month Offering Period will automatically begin on the first trading day following that Exercise Date, and (ii) all participants in such
Offering Period shall be automatically withdrawn from such Offering Period immediately after the exercise of their option on such Exercise Date and automatically re-enrolled in the immediately following Offering Period as of the first day thereof.

  
 25.    Equal Rights and Privileges.
All Eligible Employees of the Company (or of any Designated Subsidiary) will have equal rights and privileges under this Plan so that this 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 this Plan that is inconsistent with Section 423 or applicable Treasury regulations 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. 
  
 26.    No Employment Rights. Nothing in the Plan shall be construed to give any person (including any Eligible Employee or
participant) the right to remain in the employ of the Company, a Parent or a Subsidiary or to affect the right of the Company, any Parent or any Subsidiary to terminate the employment of any person (including any Eligible Employee or participant) at
any time, with or without cause. 
  
 27.    Notice of Disposition of Shares. Each participant shall give prompt notice to the Company of any disposition or other transfer of any shares of stock purchased upon exercise of an option if such disposition
or transfer is made: (a) within two (2) years from the Enrollment Date of the Offering Period in which the shares were purchased or (b) within one (1) year after the Exercise Date on which such shares were purchased. Such notice shall specify the
date of such disposition or 
  

 13 

 other transfer and the amount realized, in cash, other property, assumption of indebtedness or other consideration, by
the participant in such disposition or other transfer. 
  
 28.    Governing Law. The validity and enforceability of this Plan shall be governed by and construed in accordance with the laws of the State of Delaware without regard to otherwise governing principles of
conflicts of law. 
  

 14Form Stock Purchase Warrant

 THIS SECURITY AND THE SHARES OF COMMON STOCK ISSUABLE UPON EXERCISE OF THIS SECURITY HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AND HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH TRANSFER MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION
OF COUNSEL IN A FORM SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933. 
  
 STOCK PURCHASE WARRANT 
  
 To Subscribe for and Purchase Common Stock of 
  
 FIRST AVENUE NETWORKS, INC. 
  
 VOID AFTER JANUARY             , 2009 
  
 THIS CERTIFIES that, for value received,
[                        ] or registered assigns, is entitled, subject to the terms of Section 1 hereof, to
subscribe for and purchase from First Avenue Networks, Inc., a Delaware corporation (the “Company”), at the price of $1.84 per share (the “Warrant Price”), up to
[                        ] fully paid, nonassessable shares of Common Stock (as defined in Section 2(i) below) of
the Company, subject, however, to the provisions and upon the terms and conditions hereinafter set forth, including, without limitation, the provisions of Section 3 hereof. 
  
 SECTION 1. Exercise of Warrant. The rights represented by this Warrant shall vest and become exercisable at any time
or from time to time after the date hereof (the “Issue Date”), and on or prior to 5:00 p.m. New York City Time on January             , 2009. 
  
 As provided above, this Warrant shall terminate after 5:00 p.m. New York City
Time on January             , 2009. 
  
 This Warrant may be exercised by the holder hereof, in whole or in part (but not as to a fractional share of Common Stock), by the completion of the
subscription form attached hereto and by the surrender of this Warrant (properly endorsed) at the principal executive offices of the Company set forth in Section 7 hereof (or at such other agency or office of the Company in the United States as it
may designate by notice in writing to the holder hereof at the address of the holder hereof appearing on the books of the Company), and by payment to the Company of the Warrant Price, at the election of such holder, (i) in cash or by certified or
official bank check, for each share being purchased, or (ii) by receiving from the Company the number of shares of Common Stock equal to the number of shares of Common Stock otherwise issuable upon such exercise less the number of shares of Common
Stock having a fair market value on the date of exercise equal to the Warrant Price applicable to the number of shares of Common Stock for which this Warrant is being exercised. 
  
 (a) In the event of any exercise of the rights represented by this Warrant, a certificate or certificates
for the shares of Common Stock so purchased, registered in the name of the holder hereof, shall be delivered to the holder hereof within a reasonable 
  

 1 

 time, not exceeding three business days, after the rights represented by this Warrant shall have been so
exercised; and, unless this Warrant has expired or been exercised in full, a new Warrant representing the number of shares (except a remaining fractional share), if any, with respect to which this Warrant shall not then have been exercised shall
also be issued to the holder hereof within such time. With respect to any such exercise, the holder hereof shall for all purposes be deemed to have become the holder of record of the number of shares of Common Stock evidenced by such certificate or
certificates from the date on which this Warrant was surrendered and payment of the Warrant Price was made irrespective of the date of delivery of such certificate, except that, if the date of such surrender and payment is a date on which the stock
transfer books of the Company are closed, such person shall be deemed to have become the holder of such shares at the close of business on the next succeeding date on which the stock transfer books are open. No fractional shares shall be issued upon
exercise of this Warrant. If any fractional interest in a share of Common Stock would, except for the provisions of this Section 1, be delivered upon any such exercise, the Company, in lieu of delivering the fractional share thereof, shall pay to
the holder hereof an amount in cash equal to the current fair market value of such fractional interest based on the fair market value of a share of Common Stock as determined pursuant to Section 1(b) hereof. 
  
 (b) For purposes hereof, the fair market value of a share of
Common Stock on any date shall be equal to the average of the representative bid and asked prices quoted in the NASDAQ system as of 3:30 p.m., New York time, on such day, or, if on any day the Common Stock shall not be quoted in the NASDAQ system,
the average of the closing prices of sales of shares of Common Stock on all national securities exchanges on which the Common Stock may at the time be listed or, if there shall have been no sales on any such day, the average of the highest bid and
lowest asked prices on all such exchanges at the end of such day, or, if on any day the Common Stock shall not be so listed, the average of the high and low bid and asked prices on such day in the over-the-counter market as reported by National
Quotation Bureau Incorporated, or any single successor organization. If at any time the Common Stock is not listed on any national securities exchange or quoted in the NASDAQ system or the over-the-counter market, the fair market value of the shares
of Common Stock shall be the fair market value thereof determined in good faith by the Board of Directors of the Company. 
  
 SECTION 2. Adjustment of Warrant Price and Number of Shares. 
  
 (a) Dividends, Subdivision or Combination of Stock. In case the Company shall (i) pay a dividend in,
or make a distribution of, Common Stock or of any other interests in the Company convertible into shares of Common Stock, (ii) subdivide its outstanding shares of Common Stock into a greater number of such shares or (iii) combine its outstanding
shares of Common Stock into a smaller number of such shares, the Warrant Price in effect immediately prior to such payment, distribution or subdivision shall be proportionately reduced, i.e., the holder shall be entitled to purchase after
such payment, distribution or subdivision, for the same consideration as applicable prior to such payment, distribution or subdivision, the same percentage of outstanding Common Stock that such holder was entitled to purchase prior to such payment,
distribution or subdivision, and conversely, in case the outstanding shares of Common Stock of the 
  

 2 

 Company shall be combined into a smaller number of shares, the Warrant Price in effect immediately prior
to such combination shall be proportionately increased. 
  
 (b) Reorganization, Reclassification, Consolidation, Merger or Sale. If any capital reorganization or reclassification of the capital stock of the Company or any consolidation or merger of the Company with
another corporation, or the sale of all or substantially all of the Company’s assets to another corporation shall be effected in such a way that holders of Common Stock shall be entitled to receive stock, securities or assets with respect to or
in exchange for Common Stock, then, as a condition of such reorganization, reclassification, consolidation, merger or sale, lawful and adequate provisions shall be made whereby each holder of the Warrants shall thereafter have the right to receive
upon the basis and upon the terms and conditions specified herein and in lieu of the shares of Common Stock of the Company immediately theretofore receivable upon the exercise of such Warrant or Warrants, such shares of stock, securities or assets
(including cash) as may be issued or payable with respect to or in exchange for a number of outstanding shares of Common Stock equal to the number of shares of such stock immediately theretofore so receivable had such reorganization,
reclassification, consolidation, merger or sale not taken place, and in any such case this Warrant shall become immediately exercisable upon such event, notwithstanding any other provision contained herein, and appropriate provision shall be made
with respect to the rights and interests of such holder to the end that the provisions hereof (including, without limitation, provisions for adjustments of the Warrant Price) shall thereafter be applicable, as nearly as may be, in relation to any
shares of stock, securities or assets thereafter deliverable upon the exercise of such Warrants (including an immediate adjustment, by reason of such consolidation or merger, of the Warrant Price to the value for the Common Stock reflected by the
terms of such consolidation or merger if the value so reflected is less than the Warrant Price in effect immediately prior to such consolidation or merger). In the event of a merger or consolidation of the Company as a result of which a greater or
lesser number of shares of common stock of the surviving corporation are issuable to holders of Common Stock of the Company outstanding immediately prior to such merger or consolidation, the Warrant Price in effect immediately prior to such merger
or consolidation shall be adjusted in the same manner as though there were a subdivision or combination of the outstanding shares of Common Stock of the Company. The Company will not effect any such consolidation, merger or sale, unless prior to the
consummation thereof the successor corporation (if other than the Company) resulting from such consolidation or merger or the corporation purchasing such assets shall assume, by written instrument executed and mailed or delivered to each
Warrantholder at the last address of such holder appearing on the books of the Company, the obligation to deliver to such holder such shares of stock, securities or assets as, in accordance with the foregoing provisions, such holder may be entitled
to receive upon exercise of such Warrants. 
  
 (c) Other Dividends. In case the Company shall distribute to all holders of its Common Stock (the “Company Shareholders”) interests in the Company (other than Common Stock or other interests convertible into or
exchangeable for Common Stock), evidences of its indebtedness, cash or assets, or rights or warrants to subscribe for or purchase such interests, evidences of indebtedness or assets, then in each such case the 
  

 3 

 Warrant Price applicable in effect thereafter shall be determined in good faith by multiplying the
Purchase Price applicable to each Warrant by a fraction, of which the numerator shall be the total number of outstanding shares of Common Stock multiplied by the fair market value of a share of Common Stock (as defined in Section 1(b) above) on the
record date (as defined below), less the then fair market value, as reasonably determined in good faith by the Company, of the interests, assets or evidences of indebtedness or of such rights or warrants so distributed to all such holders, and of
which the denominator shall be the total number of outstanding shares of Common Stock, multiplied by such fair market value of a share of Common Stock (as defined in Section 1(b) above). Such adjustments shall be made whenever any such distribution
is made, and shall become effective as of the record date for the determination of the Company Shareholders entitled to receive such distribution. 
  
 (d) Notice of Adjustment. Upon any adjustment of the Warrant Price pursuant to this Section 2, then and in each such case the
Company shall give written notice thereof, by first class mail, postage prepaid, addressed to each Warrantholder at the address of such holder as shown on the books of the Company, which notice shall state the Warrant Price resulting from such
adjustment, setting forth in reasonable detail the method of calculation and the facts upon which such calculation is based. 
  
 (e) Stock to Be Reserved. The Company shall at all times reserve and keep available out of its authorized Common Stock or its
treasury shares, solely for the purpose of issuance upon the exercise of this Warrant as herein provided, such number of shares of Common Stock as shall then be issuable upon the exercise of this Warrant. The Company covenants that all shares of
Common Stock which shall be so issued shall be duly and validly issued and fully paid and nonassessable and free from all taxes, liens and charges with respect to the issue thereof, and, without limiting the generality of the foregoing, the Company
covenants that it will from time to time take all such action as may be requisite to assure that, in the event that the Company designates a par value per share of Common Stock, the par value per share of the Common Stock shall be at all times equal
to or less than the effective Warrant Price. The Company shall take all such action as may be necessary to assure that all such shares of Common Stock may be so issued without violation of any applicable law or regulation, or of any requirements of
any national securities exchange upon which the Common Stock of the Company may be listed. Anything herein to the contrary notwithstanding, the Company shall not take any action which results in any adjustment of the Warrant Price if the total
number of shares of Common Stock issued and issuable after such action upon exercise of this Warrant would exceed the total number of shares of Common Stock then authorized by the Company’s Certificate of Incorporation, as amended. The Company
has not granted and will not grant any right of first refusal with respect to shares issuable upon exercise of this Warrant, and there are no preemptive rights associated with such shares. 
  
 (f) Certain Issues of Common Stock Excepted. Anything
herein to the contrary notwithstanding, the Company shall not be required to make any adjustment in the Warrant Price in the case of the issuance of Awards and/or options under the Stock Option Plan (as defined in the Plan) or the issuance of any
shares of Common Stock upon exercise of such Awards and Options. 
  

 4 

 (g) Issue Tax. The issuance of certificates for shares of Common Stock upon
exercise of this Warrant shall be made without charge to the holder hereof for any issuance tax in respect thereof, provided that the Company shall not be required to pay any tax which may be payable in respect of any transfer involved in the
issuance and delivery of any certificate in a name other than that of the holder hereof. 
  
 (h) Closing of Transfer Books. The Company will at no time close its transfer books against the transfer of the shares of Common
Stock issued or issuable upon the exercise of this Warrant in any manner which interferes with the timely exercise of this Warrant. 
  
 (i) Definition of Common Stock. As used herein the term “Common Stock” shall mean and include the Common Stock, $.001 par
value, of the Company as authorized on the Issue Date, or shares of any class or classes resulting from any reclassification or reclassifications thereof and in case at any time there shall be more than one such resulting class, the shares of each
class then so issuable shall be substantially in the proportion which the total number of shares of such class resulting from all such reclassifications bears to the total number of shares of all such classes resulting from all such
reclassifications. 
  
 SECTION 3. Notices of Record
Dates. In the event of: 
  
 (1) any taking by
the Company of a record of the holders of any class of securities for the purpose of determining the holders thereof who are entitled to receive any dividend or other assets, property or distribution, or any right to subscribe for, purchase or
otherwise acquire any shares of stock of any class or any other securities or property, or to receive any right to sell shares of stock of any class or any other right; or 
  
 (2) any capital reorganization of the Company, any reclassification or recapitalization of the capital stock
of the Company or any transfer of all or substantially all the assets of the Company to or consolidation or merger of the Company with or into any other corporation or entity; or 
  
 (3) any voluntary or involuntary dissolution, liquidation or winding-up of the Company; 
  
 then and in each such event the Company shall give notice to the holder of this Warrant
specifying (i) the date on which any such record is to be taken for the purpose of such dividend, distribution or right and stating the amount and character of such dividend, distribution or right, and (ii) the date on which any such reorganization,
reclassification, recapitalization, transfer, consolidation, merger, dissolution, liquidation or winding-up is to take place, and the time, if any is to be fixed, as of which the holders of record of Common Stock will be entitled to exchange their
shares of Common Stock for securities or other property deliverable upon such reorganization, reclassification, recapitalization, transfer, consolidation, merger, dissolution, liquidation or winding-up. Such notice shall be given at least 20 days
and not more than 90 days prior to the date therein specified, and such notice shall state that the action in question or the 
  

 5 

 record date is subject to (x) the effectiveness of a registration statement under the Securities Act of 1933, as amended,
and applicable state securities laws, or (y) a favorable vote of stockholders, if either is required. 
  
 SECTION 4. No Stockholder Rights or Liabilities. 
  
 (a) This warrant shall not entitle the holder hereof to any voting rights or other rights as a shareholder of the Company. No provision
hereof, in the absence of affirmative action by the holder hereof to purchase shares of Common Stock, and no mere enumeration herein of the rights or privileges of the holder hereof, shall give rise to any liability of such holder for the Warrant
Price or as a stockholder of the Company, whether such liability is asserted by the Company or by creditors of the Company. 
  
 (b) If the Company, at any time while this Warrant is outstanding, shall make a distribution to the holders of its Common Stock of its
property or assets as a dividend in liquidation or partial liquidation or by way of return of capital or any dividend payable out of funds legally available for dividends under the laws of the State of Delaware, the holder of this Warrant shall be
entitled to receive at the time of such distribution, without payment of any consideration, a sum equal to the amount of such property or assets as would have been payable to the holder hereof as an owner of the shares issuable upon the exercise
hereof had the holder hereof been the holder of record of such shares on the record date for such distribution; and an appropriate provision with respect to such payment to such holder as described in this paragraph (b) shall be made a part of any
such distribution. 
  
 SECTION 5. Lost, Stolen, Mutilated or
Destroyed Warrant. If this Warrant is lost, stolen, mutilated or destroyed, the Company may, on such terms as to indemnity or otherwise as it may in its discretion reasonably impose (which shall, in the case of a mutilated Warrant, include the
surrender thereof), issue a new Warrant of like denomination and tenor as the Warrant so lost, stolen, mutilated or destroyed. Any such new Warrant shall constitute an original contractual obligation of the Company, whether or not the allegedly
lost, stolen, mutilated or destroyed Warrant shall be at any time enforceable by anyone. 
  
 SECTION 6. Restrictions on Transfers. The holder of this Warrant may not dispose of or transfer this Warrant or the Common Stock acquired upon exercise hereof, whether by sale, assignment, gift, pledge,
encumbrance or otherwise, unless either (i) they have been registered under the Securities Act of 1933 (the “Securities Act”) or (ii) the receipt by the Company of an opinion of counsel in a form satisfactory to the Company that
registration is not required under the Securities Act for the transfer of the this Warrant or the Common stock acquired upon exercise hereof, at which time the legend on this Warrant shall be removed from the certificates representing this Warrant
or the Common stock acquired upon exercise hereof, at the request of the holder thereof. 
  
 SECTION 7. Notices. All notices, requests and other communications required or permitted to be given or delivered hereunder shall be in writing, and shall be delivered, or shall be sent by national overnight
courier service or by certified or registered mail, postage prepaid and addressed, if to the holder, to such holder at the address shown on the records of the 
  

 6 

 Company or at such other address as shall have been furnished to the Company by notice from such holder and, if to the
Company, addressed to the Company at: 
  
 First Avenue Networks,
Inc. 
 230 Court Square, Suite 202 
 Charlottesville, VA 
 Attn: Sandra Thomas Watson 
 Phone: (434) 220-4988 
 Fax: (434) 220-4978 
  
 with a copy to: 
  
 Ropes & Gray LLP 
 One International
Place 
 Boston, MA 02110 
 Attn: Joel Freedman 
 Phone: (617) 951-7309 
 Fax: (617) 951-7050 
  
 -and-

  
 Andrews Kurth LLP 
 450 Lexington Avenue 
 New York, NY 10017

 Attn: Paul N. Silverstein, Esq. 
          Richard Baumfield, Esq. 
 Phone: (212) 850-2800 
 Fax: (212) 850-2929 
  
 [Remainder of this page intentionally left blank] 
  

 7 

 IN WITNESS WHEREOF, FIRST AVENUE NETWORKS, INC. has executed this Warrant on and as of the day and year
first above written. 
  

			
	 FIRST AVENUE NETWORKS, INC.
  

		
	By:	 	 
	 	 	

	 Name:
	 	 
	 	 	

	 Title:
	 	 
	 	 	

  
  

			
	[Corporate Seal]
	
	 Attest:

		
	By:	 	 
	 	 	

	 Name:
	 	 
	 	 	

	 Title:
	 	 
	 	 	

  

 8 

 SUBSCRIPTION FORM TO BE EXECUTED 
  
 UPON EXERCISE OF THE WARRANT 
  

Date:              
  
 To First Avenue Networks, Inc.: 
  
 The undersigned, pursuant to the provisions set forth in the Warrant, hereby agrees to subscribe for and purchase
                     shares of Common Stock covered by such Warrant, and herewith tenders $
                     in full payment of the purchase price for such shares. 
  

			
	 Name of Holder:
  

		
	By:	 	 
	 	 	

	 Name:
	 	 
	 	 	

	 Address:
	 	 
	 	 	

	
	

	
	

  

 9

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