Document:

Amended and Restated 1997 Stock Incentive Plan

 Exhibit 10.2 
 AVICI SYSTEMS INC. 
 AMENDED AND RESTATED 1997 STOCK INCENTIVE PLAN 
  

	1.	Purpose 

 The purpose of this Amended and Restated
1997 Stock Incentive Plan (the “Plan”) of Avici Systems Inc., a Delaware corporation (the “Company”), is to advance the interests of the Company’s stockholders by enhancing the Company’s ability to attract, retain and
motivate persons who make (or are expected to make) important contributions to the Company by providing such persons with equity ownership opportunities and performance-based incentives and thereby better aligning the interests of such persons with
those of the Company’s stockholders. Except where the context otherwise requires, the term “Company” shall include any present or future subsidiary corporations of Avici Systems Inc. as defined in Section 424(f) of the Internal
Revenue Code of 1986, as amended, and any regulations promulgated thereunder (the “Code”). 
  

	2.	Eligibility 

 All of the Company’s employees,
officers, directors, consultants and advisors are eligible to be granted options, restricted stock, or other stock-based awards (each, an “Award”) under the Plan. Any person who has been granted an Award under the Plan shall be deemed a
“Participant”. 
  

	3.	Administration, Delegation 

 (a) Administration
by Board of Directors. The Plan will be administered by the Board of Directors of the Company (the “‘Board”). The Board shall have authority to grant Awards and to adopt, amend and repeal such administrative rules, guidelines and
practices relating to the Plan as it shall deem advisable. The Board may correct any defect, supply any omission or reconcile any inconsistency in the Plan or any Award in the manner and to the extent it shall deem expedient to carry the Plan into
effect and it shall be the sole and final judge of such expediency. All decisions by the Board shall be made in the Board’s sole discretion and shall be final and binding on all persons having or claiming any interest in the Plan or in any
Award. No director or person acting pursuant to the authority delegated by the Board shall be liable for any action or determination relating to or under the Plan made in good faith. 
 (b) Delegation to Executive Officers. To the extent permitted by applicable law, the Board may delegate to one or more executive officers of the
Company the power to make Awards and exercise such other powers under the Plan as the Board may determine, provided that the Board shall fix the maximum number of shares subject to Awards and the maximum number of shares for any one Participant to
be made by such executive officers. 

 (c) Appointment of Committees. To the extent permitted by applicable law, the Board may delegate
any or all of its powers under the Plan to one or more committees or subcommittees of the Board (a “Committee”). If and when the common stock, $.0001 par value per share, of the Company (the “Common Stock”) is registered under
the Securities Exchange Act of 1934 (the “Exchange Act”), the Board shall appoint one such Committee of not less than two members, each member of which shall be an “outside director” within the meaning of Section 162(m) of
the Code and a “Non-Employee director” as defined in Rule 16b-3 promulgated under the Exchange Act.” All references in the Plan to the “Board” shall mean the Board or a Committee of the Board or the executive officer
referred to in Section 3(b) to the extent that the Board’s powers or authority under the Plan have been delegated to such Committee or executive officer. 
  

	4.	Stock Available for Awards 

 (a) Number of
Shares. Subject to adjustment under Section 4(c), Awards may be made under the Plan for up to 1,381,562 shares of Common Stock. If any Award expires or is terminated, surrendered or canceled without having been fully exercised or is
forfeited in whole or in part or results in any Common Stock not being issued, the unused Common Stock covered by such Award shall again be available for the grant of Awards under the Plan, subject, however, in the case of Incentive Stock Options
(as hereinafter defined), to any limitation required under the Code. Shares issued under the Plan may consist in whole or in part of authorized but unissued shares or treasury shares. 
 (b) Per-Participant Limit. Subject to adjustment under Section 4(c), for Awards granted after the Common Stock is registered under the
Exchange Act, the maximum number of shares with respect to which any Award may be granted to any Participant under the Plan shall be 250,000 per calendar year. The per-participant limit described in this Section 4(b) shall be construed and
applied consistently with Section 162(m) of the Code. 
 (c) Adjustment to Common Stock. In the event of any stock split, stock
dividend, recapitalization, reorganization, merger, consolidation, combination, exchange of shares, liquidation, spin-off, split-up, or other similar change in capitalization or event, or any distribution to holders of Common Stock other than a
normal cash dividend (i) the number and class of securities available under this Plan, (ii) the number and class of security and exercise price per share subject to each outstanding Option, (iii) the repurchase price per security
subject to each outstanding Restricted Stock Award, and (iv) the terms of each other outstanding stock-based Award shall be appropriately adjusted by the Board (or substituted Awards may be made), in order in the case of each outstanding Award
to preserve the economic value of the Award. If this Section 4(c) applies and Section 8(e)(1) also applies to any event, Section 8(e)(1) shall be applicable to such event, and this Section 4(c) shall not be applicable.
Adjustments under this Section 4(c) shall be mandatory and shall be final, binding and conclusive. 
  

	5.	Stock Options 

 (a) General. The Board may
grant options to purchase Common Stock (each, an “Option”) and determine the number of shares of Common Stock to be covered by each Option, 

  

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the exercise price of each Option and the conditions and limitations applicable to the exercise of each Option, including conditions relating to applicable
federal or state securities laws, as it considers necessary or advisable. An Option which is not intended to be an Incentive Stock Option (as hereinafter defined) shall be designated a “Nonstatutory Stock Option”. 
 (b) Incentive Stock Options. An Option that the Board intends to be an “incentive stock option” as defined in Section 422 of the
Code (an “Incentive Stock Option”) shall only be granted to employees of the Company and shall be subject to and shall be construed consistently with the requirements of Section 422 of the Code. The Company shall have no liability to
a Participant, or any other, party, if an Option (or any part thereof) which is intended to be an Incentive Stock Option is not an Incentive Stock Option. 
 (c) Exercise Price. The Board shall establish the exercise price at the time each Option is granted and specify it in the applicable option agreement. 
 (d) Duration of Options. Each Option shall be exercisable at such times and subject to such terms and conditions as the Board may specify in the
applicable option agreement. No Option will be granted for a term in excess of 10 years. 
 (e) Exercise of Option. Options may be
exercised only by delivery to the Company of a written notice of exercise signed by the proper person together with payment in full as specified in Section 5(f) for the number of shares for which the Option is exercised. 
 (f) Payment Upon Exercise. Common Stock purchased upon the exercise of an Option granted under the Plan shall be paid for as follows: 

 

	 	(1)	in cash or by check, payable to the order of the Company; 

  

	 	(2)	except as the Board may otherwise provide in an Option Agreement, delivery of an irrevocable and unconditional undertaking by a creditworthy broker to deliver promptly to the
Company sufficient funds to pay the exercise price, or delivery by the Participant to the Company of a copy of irrevocable and unconditional instructions to a creditworthy broker to deliver promptly to the Company cash or a check sufficient to pay
the exercise price; 

  

	 	(3)	to the extent permitted by the Board and explicitly provided in an Option Agreement (i) by delivery of shares of Common Stock owned by the Participant valued at their fair
market value as determined by the Board in good faith (“Fair Market Value”), which Common Stock was owned by the Participant at least six months prior to such delivery, (ii) by delivery of a promissory note of the Participant to the
Company on terms determined by the Board, or (iii) by payment of such other lawful consideration as the Board may determine; or 

  

	 	(4)	any combination of the above permitted forms of payment. 

  

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	6.	Restricted Stock 

 (a) Grants. The Board may
grant Awards entitling recipients to acquire shares of Common Stock, subject to the right of the Company to repurchase all or part of such shares at their issue price or other stated or formula price (or to require forfeiture of such shares if
issued at no cost) from the recipient in the event that conditions specified by the Board in the applicable Award are not satisfied prior to the end of the applicable restriction period or periods established by the Board for such Award (each,
“Restricted Stock Award”). 
 (b) Terms and Conditions. The Board shall determine the terms and conditions of any such
Restricted Stock Award, including the conditions for repurchase (or forfeiture) and the issue price, if any. Any stock certificates issued in respect of a Restricted Stock Award shall be registered in the name of the Participant and, unless
otherwise determined by the Board, deposited by the Participant, together with a stock power endorsed in blank, with the Company (or its designee). At the expiration of the applicable restriction periods, the Company (or such designee) shall deliver
the certificates no longer subject to such restrictions to the Participant or if the Participant has died, to the beneficiary designated, in a manner determined by the Board, by a Participant to receive amounts due or exercise rights of the
Participant in the event of the Participant’s death (the “Designated Beneficiary”). In the absence of an effective designation by a Participant, Designated Beneficiary shall mean the Participant’s estate. 
  

	7.	Other Stock-Based Awards 

 The Board shall have the
right to grant other Awards based upon the Common Stock having such terms and conditions as the Board may determine, including the grant of shares based upon certain conditions, the grant of securities convertible into Common Stock and the grant of
stock appreciation rights. 
  

	8.	General Provisions Applicable to Awards 

 (a)
Transferability of Awards. Except a the Board may otherwise determine or provide in an Award, Awards shall not be sold, assigned, transferred, pledged or otherwise encumbered by the person to whom they are granted, either voluntarily or by
operation of law, except by will or the laws of descent and distribution, and, during the life of the Participant, shall be exercisable only by the Participant. References to a Participant, to the extent relevant in the context, shall include
references to authorized transferees. 
 (b) Documentation. Each Award under the Plan shall be evidenced by a written instrument in
such form as the Board shall determine. Each Award may contain terms and conditions in addition to those set forth in the Plan. 
 (c)
Board Discretion. Except as otherwise provided by the Plan, each type of Award may be made alone or in addition or in relation to any other type of Award. The terms of each type of Award need not be identical, and the Board need not treat
Participants uniformly. 
  

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 (d) Termination of Status. The Board shall determine the effect on an Award of the disability,
death, retirement, authorized leave of absence or other change in the employment or other status of a Participant and the extent to which, and the period during which, the Participant, the Participant’s legal representative, conservator,
guardian or Designated Beneficiary may exercise rights under the Award. 
 (e) Acquisition Events 
  

	 	(1)	Consequences of Acquisition Events. Upon the occurrence of an Acquisition Event (as defined below), or the execution by the Company of any agreement with respect to an
Acquisition Event, the Board shall take any one or more of the following actions with respect to then outstanding Awards: (i) provide that outstanding Options shall be assumed, or equivalent Options shall be substituted, by the acquiring or
succeeding corporation (or an affiliate thereof), provided that any such Options substituted for Incentive Stock Options shall satisfy, in the determination of the Board, the requirements of Section 424(a) of the Code; (ii) upon written
notice to the Participants, provide that all or a portion of then unexercised Options will become exercisable in full or in part as of a specified time (the “Acceleration Time”) prior to the Acquisition Event and will terminate immediately
prior to the consummation of such Acquisition Event, except to the extent exercised by the Participants between the Acceleration Time and the consummation of such Acquisition Event; (iii) in the event of an Acquisition Event under the terms of
which holders of Common Stock will receive upon consummation thereof a cash payment for each share of Common Stock surrendered pursuant to such Acquisition Event (the “Acquisition Price”), provide that all outstanding Options shall
terminate upon consummation of such Acquisition Event and each Participant shall receive, in exchange therefor, a cash payment equal to the amount (if any) by which (A) the Acquisition Price multiplied by the number of shares of Common Stock
subject to such outstanding Options (whether or not then exercisable), exceeds (B) the aggregate exercise price of such Options; (iv) provide that all or any portion of the Restricted Stock Awards then outstanding shall become free of all
or certain restrictions prior to the consummation of the Acquisition Event; and (v) provide that any other stock-based Awards outstanding (A) shall become exercisable, realizable or vested in full or in part, or shall be free of all or
certain conditions or restrictions, as applicable to each such Award, prior to the consummation of the Acquisition Event, or (B), if applicable, shall be assumed, or equivalent Awards shall be substituted, by the acquiring or succeeding corporation
(or an affiliate thereof). 

 An “Acquisition Event” shall mean: (a) any merger or consolidation which results
in the voting securities of the Company outstanding immediately prior thereto representing immediately thereafter (either by remaining outstanding or by being converted into voting 

  

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securities of the surviving r acquiring entity) less than 51% of the combined voting power of the voting securities of the Company or such surviving or
acquiring entity outstanding immediately after such merger or consolidation; (b) any sale of all or substantially all of the assets of the Company; or (c) the complete liquidation of the Company. 
  

	 	(2)	Assumption of Options Upon Certain Events. The Board may grant Awards under the Plan in substitution for stock and stock-based awards held by employees of another corporation
who become employees of the Company as a result of a merger or consolidation of the employing corporation with the Company or the acquisition by the Company of property or stock of the employing corporation. The substitute Awards shall be granted on
such terms and conditions as the Board considers appropriate in the circumstances. 

 (f) Withholding. Each Participant
shall pay to the Company, or make provision satisfactory to the Board for payment of, any taxes required by law to be withheld in connection with Awards to such Participant no later than the date of the event creating the tax liability. The Board
may allow Participants to satisfy such tax obligations in whole or in part in shares of Common Stock, including shares retained from the Award creating the tax obligation, valued at their Fair Market Value. The Company may, to the extent permitted
by law, deduct any such tax obligations from any payment of any kind otherwise due to a Participant. 
 (g) Amendment of Award. The
Board may amend, modify or terminate any outstanding Award, including but not limited to, substituting therefor another Award of the same or a different type, changing the date of exercise or realization, and converting an Incentive Stock Option to
a Nonstatutory Stock Option, provided that the Participant’s consent to such action shall be required unless the Board determines that the action, taking into account any related action, would not materially and adversely affect the
Participant, provided further that no Award may be repriced by cancellation or amendment of such Award without approval of the shareholders of the Company (except pursuant to Section 4(c) or Section 8(e)) if the effect would be to
reduce the exercise price for the shares underlying such Award. 
 (h) Conditions on Delivery of Stock. The Company will not be
obligated to deliver any shares of Common Stock pursuant to the Plan or to remove restrictions from shares previously delivered under the Plan until (i) all conditions of the Award have been met or removed to the satisfaction of the Company,
(ii) in the opinion of the Company’s counsel, all other legal matters in connection with the issuance and delivery of such shares have been satisfied, including any applicable securities laws and any applicable stock exchange or stock
market rules and regulations, and (iii) the Participant has executed and delivered to the Company such representations or agreements as the Company may consider appropriate to satisfy the requirements of any applicable laws, rules or
regulations. 
 (i) Acceleration. The Board may at an time provide that any Options shall become immediately exercisable in full or in
part, that any Restricted Stock Awards shall be free of all restrictions or that any other stock-based Awards may become exercisable in full or in part or 

  

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free of some or all restrictions or conditions, or otherwise realizable in full or in part, as the case may be. 
  

	9.	Miscellaneous 

 (a) No Right To Employment or
Other Status. No person shall have any claim or right to be granted an Award, and the grant of an Award shall not be construed as giving a Participant the right to continued employment or any other relationship with the Company. The Company
expressly reserves the right at any time to dismiss or otherwise terminate its relationship with a Participant free from any liability or claim under the Plan, except as expressly provided in the applicable Award. 
 (b) No Rights As Stockholder. Subject to the provisions of the applicable Award, no Participant or Designated Beneficiary shall have any rights as
a stockholder with respect to any shares of Common Stock to be distributed with respect to an Award until becoming the record holder of such shares. 
 (c) Effective Date and Term of Plan. The Plan shall become effective on the date on which it is adopted by the Board. No Awards shall be granted under the Plan after the completion of ten years from the earlier
of (i) the date on which the Plan was adopted by the Board or (ii) the date a Plan was approved by the Company’s stockholders, but Awards previously granted may extend beyond that date. 
 (d) Amendment of Plan. The Board may amend, suspend or terminate the Plan or any portion thereof at any time. 
 (e) Governing Law. The provisions of the Plan and all Awards made hereunder shall be governed by and interpreted in accordance with the laws of
the State of Delaware, without regard to any applicable conflicts of law. 
 Amendment and Restatement Adopted by

 Board of Directors 
 April 18, 2007 
 Amendment and Restatement Adopted by 
 Stockholders 
 May 31, 2007 
  

 - 7 -Amended and Restated 2000 Non-Employee Director Stock Option Plan

 Exhibit 10.3 
 AVICI SYSTEMS INC. 
 AMENDED AND RESTATED 2000 NON-EMPLOYEE DIRECTOR STOCK OPTION PLAN

 1. Purpose. This Non-Qualified Stock Option Plan, to be known as the Amended and Restated 2000 Non-Employee Director
Stock Option Plan (hereinafter, this “Plan”) is intended to promote the interests of Avici Systems Inc. (hereinafter, the “Company”) by providing an inducement to obtain and retain the services of qualified persons who are not
employees or officers of the Company to serve as members of its Board of Directors (the “Board”). 
 2. Available
Shares. The total number of shares of common stock, par value $.0001 per share, of the Company (the “Common Stock”) for which options may be granted under this Plan shall initially be 100,000 shares, subject to adjustment in
accordance with paragraph 11 of this Plan, which number shall automatically increase on January 1 of each year, beginning with January 1, 2001, by such number of shares as is equal to the number of shares necessary to
cause the total number of shares then available to be issued pursuant to the Plan (after deducting shares issued upon exercise of options under the Plan and shares issuable pursuant to outstanding options under the Plan) to be 100,000, subject to
adjustment in accordance with paragraph 11 of this Plan. Shares subject to this Plan are authorized but unissued shares or shares that were once issued and subsequently reacquired by the Company. If any options granted under this Plan are
surrendered before exercise or lapse without exercise, in whole or in part, the shares reserved therefor shall continue to be available under this Plan. 
 3. Administration. This Plan shall become effective on the date on which the Common Stock becomes registered under the Securities Exchange Act (the “Initial Public Offering Date”). This Plan
shall be administered by the Board or by a committee appointed by the Board (the “Committee”). In the event the Board fails to appoint or refrains from appointing a Committee, the Board shall have all power and authority to administer this
Plan. In such event, the word “Committee” wherever used herein shall be deemed to mean the Board. The Committee shall, subject to the provisions of the Plan, have the power to construe this Plan, to determine all questions hereunder, and
to adopt and amend such rules and regulations for the administration of this Plan as it may deem desirable. No member of the Board or the Committee shall be liable for any action or determination made in good faith with respect to this Plan or any
option granted under it. 
 4. Automatic Grant of Options. Subject to the availability of shares under this Plan, each person
who is a member of the Board and who is not an employee or officer of the Company or any subsidiary (a “Non-Employee Director”) on the date of each annual meeting of stockholders of the Company (each, an “Annual Meeting Date”)
shall be automatically granted on such date, without further action by the Board, an option to purchase 3,750 shares of the Common Stock (the “Annual Grant”). 

 Subject to the availability of shares under this Plan, each Non-Employee Director on the Initial Public
Offering Date shall be automatically granted on such date, without further action by the Board, an option to purchase 10,000 shares of Common Stock (the “Existing Director Grant”), unless such Non-Employee Director has been granted an
option to purchase at least 10,000 shares of Common Stock in fiscal year 2000 pursuant to the Company’s 1997 Stock Incentive Plan. 
 Subject to the availability of shares under this Plan, each Non-Employee Director first elected to the Board following the Initial Public Offering Date shall be automatically granted on the date such person is first elected to the Board,
without further action by the Board, an option to purchase 8,750 shares of the Common Stock (the “Election Grant”). 
 The
options to be granted under this paragraph 4 shall be the only options ever to be granted at any time to such member under this Plan. The number of shares covered by outstanding options granted under this paragraph 4 or for which options may
subsequently be granted under this paragraph 4 shall be subject to adjustment in accordance with the provisions of paragraph 11 of this Plan. 
 5. Option Price. The purchase price of the stock covered by an option granted pursuant to this Plan shall be 100% of the fair market value of such shares on the day the option is granted; provided, however, that the purchase
price of the stock covered by an Existing Director Grant shall be equal to 100% of the price per share at which the Common Stock is initially sold to the public in the initial public offering of the Common Stock without regard to any applicable
underwriting discounts or commissions. The option price will be subject to adjustment in accordance with the provisions of paragraph 11 of this Plan. For purposes of this Plan, if, at the time an option is granted under the Plan, the
Company’s Common Stock is publicly traded, “fair market value” shall be determined as of the last business day for which the prices or quotes discussed in this sentence are available prior to the date such option is granted and shall
mean (i) the closing price (on that date) of the Common Stock on the Nasdaq Global Market or other principal national securities exchange on which the Common Stock is traded, if the Common Stock is then traded on a national securities exchange;
or (ii) the closing bid price (or average of bid prices) last quoted (on that date) by an established quotation service for over-the-counter securities, if the Common Stock is not reported on a principal national securities exchange.

 6. Period of Option. Unless sooner terminated in accordance with the provisions of paragraph 9 of this Plan, an option
granted hereunder shall expire on the date which is ten (10) years after the date of grant of the option. 
 7. Vesting of Shares
and Non-Transferability of Options. Options granted under this Plan shall not be exercisable until they become vested. Options granted under this Plan shall vest in the optionee and thus become exercisable in accordance with the following
schedule, provided that the optionee has continuously served as a member of the Board through such vesting date: 
 Annual
Grant: 
  

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	 Option Shares for which
Option Will be Exercisable
	  	 Date of Vesting

		
	 1,250
	  	Date of grant
	 an additional 625
	  	One year from the date of grant or, if earlier, the day immediately prior to the first Annual Meeting Date following the grant date
	 an additional 625
	  	Two years from the date of grant or, if earlier, the day immediately prior to the second Annual Meeting Date following the grant date
	 an additional 625
	  	Three years from the date of grant or, if earlier, the day immediately prior to the third Annual Meeting Date following the grant date
	 an additional 625
	  	Four years from the date of grant or, if earlier, the date immediately prior to the fourth Annual Meeting Date following the grant date

 The foregoing number of shares for which such options will become exercisable shall be subject to
adjustment in accordance with paragraph 11. 
 Existing Director Grant and Election Grant: 
  

			
	 Percentage of Option
Shares for which
Option Will be Exercisable
	  	 Date of Vesting

		
	 25%
	  	One year from the date of grant
	 50%
	  	Two years from the date of grant
	 75%
	  	Three years from the date of grant
	 100%
	  	Four years from the date of grant

 In the event any optionee’s service as a member of the Board terminates as of an Annual
Meeting Date occurring within thirty (30) days prior to the date any option installment would otherwise have vested had such optionee continued to serve as a member of the Board, then notwithstanding the foregoing, such installment shall be
vested and exercisable as of such Annual Meeting Date. 
 The number of shares as to which options may be exercised shall be cumulative, so
that once the option shall become exercisable as to any shares it shall continue to be exercisable as to said shares, until expiration or termination of the option as provided in this Plan. 
 8. Non-transferability. Any option granted pursuant to this Plan shall not be assignable or transferable other than by will or the laws of
descent and distribution or pursuant to 

  

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a domestic relations order and shall be exercisable during the optionee’s lifetime only by him or her.  
 9. Termination of Option Rights. 
 (a) In the event an optionee ceases to be a member of the Board for any reason other than death or permanent disability, any then unexercised portion of options granted to such optionee shall, to the extent not then vested, immediately
terminate and become void; any portion of an option which is then vested but has not been exercised at the time the optionee so ceases to be a member of the Board may be exercised, to the extent it is then vested, by the optionee within
180 days of the date the optionee ceased to be a member of the Board, but not later than the scheduled expiration of the date of the option; and all options shall terminate after such 180 days have expired. 
 (b) In the event that an optionee ceases to be a member of the Board by reason of his or her death or permanent disability, any option granted to such
optionee shall be immediately and automatically accelerated and become fully vested and all unexercised options shall be exercisable by the optionee (or by the optionee’s personal representative, heir or legatee, in the event of death) until
the scheduled expiration date of the option. 
 10. Exercise of Option. Subject to the terms and conditions of this Plan and
the option agreements, an option granted hereunder shall, to the extent then exercisable, be exercisable in whole or in part by giving written notice to the Company by mail or in person addressed to Avici Systems Inc., at its principal executive
offices, stating the number of shares with respect to which the option is being exercised, accompanied by payment in full for such shares. Payment may be (a) in United States dollars in cash or by check, (b) in whole or in part in shares
of the Common Stock of the Company already owned by the person or persons exercising the option or shares subject to the option being exercised (subject to such restrictions and guidelines as the Board may adopt from time to time), valued at fair
market value determined in accordance with the provisions of paragraph 5 or (c) consistent with applicable law, through the delivery of an assignment to the Company of a sufficient amount of the proceeds from the sale of the Common Stock
acquired upon exercise of the option and an authorization to the broker or selling agent to pay that amount to the Company, which sale shall be at the participant’s direction at the time of exercise. There shall be no such exercise at any one
time as to fewer than twenty-five (25) shares or all of the remaining shares then purchasable by the person or persons exercising the option, if fewer than twenty-five (25) shares. The Company’s transfer agent shall, on behalf of the
Company, prepare a certificate or certificates representing such shares acquired pursuant to exercise of the option, shall register the optionee as the owner of such shares on the books of the Company and shall cause the fully executed
certificate(s) representing such shares to be delivered to the optionee as soon as practicable after payment of the option price in full. The holder of an option shall not have any rights of a stockholder with respect to the shares covered by the
option, except to the extent that one or more certificates for such shares shall be delivered to him or her upon the due exercise of the option. 
  

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 11. Adjustments Upon Changes in Capitalization and Other Events. Upon the occurrence of any
of the following events, an optionee’s rights with respect to options granted to him or her hereunder shall be adjusted as hereinafter provided: 
 (a) Stock Dividends and Stock Splits. If the shares of Common Stock shall be subdivided or combined into a greater or smaller number of shares or if the Company shall issue any shares of Common Stock as a stock
dividend on its outstanding Common Stock, the number of shares of Common Stock deliverable upon the exercise of previously outstanding options shall be appropriately increased or decreased proportionately, and appropriate adjustments shall be made
in the purchase price per share to reflect such subdivision, combination or stock dividend. 
 (b) Recapitalization and Distribution
Adjustments. If the Company is to be consolidated with or acquired by another entity in a merger, sale of all or substantially all of the Company’s assets or otherwise, each option granted under this plan which is outstanding but unvested
as of the effective date of such event shall become exercisable in full thirty (30) days prior to the effective date of such event. In the event of an extraordinary cash dividend, recapitalization, reorganization, merger, consolidation,
combination, exchange of shares, liquidation, spin-off, split-up, or other similar change in capitalization or event, or any distribution to holders of Common Stock other than a normal cash dividend, adjustments in the number and kind of shares
authorized by this Plan and in the number and kind of shares covered by, and in the option price of outstanding options under this Plan shall be adjusted by the Board (or substituted Options may be made), in order in the case of each outstanding
Option to preserve the economic value of the Option. Notwithstanding the foregoing, no such adjustment shall be made which would, within the meaning of any applicable provisions of the Internal Revenue Code of 1986, as amended, constitute a
modification, extension or renewal of any Option or a grant of additional benefits to the holder of an Option. 
 (c) Issuances of
Securities. 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 subject to Options. 
 (d) Adjustments. Upon the happening of any of the foregoing events
described in subparagraphs 11(a) and (b), the class and aggregate number of shares set forth in paragraph 2 available under this Plan, the number of shares that are subject to, and the exercise price of, outstanding options which previously have
been granted under this Plan, and the number of shares for which options may subsequently be granted under the Plan shall be adjusted by the Board (or substituted Options may be made), in order in the case of each outstanding Option to preserve the
economic value of the Option. Adjustments under this paragraph 11 shall be mandatory and shall be final, binding and conclusive. 
 (e)
Repricing. No option granted under this Plan may be repriced through by cancellation or amendment of such option without approval of the shareholders of the Company (except pursuant to this paragraph 11) if the effect would be to reduce the
exercise price for the shares underlying such option. 
  

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 12. Restrictions on Issuance of Shares. Notwithstanding the provisions of paragraphs 4
and 11 of this Plan, the Company shall have no obligation to deliver any certificate or certificates upon exercise of an option until one of the following conditions shall be satisfied: 
 (i) The issuance of shares with respect to which the option has been exercised is at the time of the issue of such shares effectively
registered under applicable Federal and state securities laws as now in force or hereafter amended; or 
 (ii) Counsel for the
Company shall have given an opinion that the issuance of such shares is exempt from registration under Federal and state securities laws as now in force or hereafter amended; 
 and the Company has complied with all applicable laws and regulations with respect thereto, including without limitation all regulations
required by any stock exchange upon which the Company’s outstanding Common Stock is then listed. 
 13. Legend on
Certificates. The certificates representing shares issued pursuant to the exercise of an option granted hereunder shall carry such appropriate legend, and such written instructions shall be given to the Company’s transfer agent, as may
be deemed necessary or advisable by counsel to the Company in order to comply with the requirements of the Securities Act of 1933 or any state securities laws. 
 14. Representation of Optionee. If requested by the Company, the optionee shall deliver to the Company written representations and warranties upon exercise of the option that are necessary to show
compliance with Federal and state securities laws, including representations and warranties to the effect that a purchase of shares under the option is made for investment and not with a view to their distribution (as that term is used in the
Securities Act of 1933). 
 15. Option Agreement. Each option granted under the provisions of this Plan shall be evidenced by
an option agreement, which agreement shall be duly executed and delivered on behalf of the Company and by the optionee to whom such option is granted. The option agreement shall contain such terms, provisions and conditions not inconsistent with
this Plan as may be determined by the officer executing it. 
 16. Termination and Amendment of Plan. The Board may at any time
terminate this Plan or make such modification or amendment thereof as it deems advisable; provided, however, that the Board may not, without approval of the stockholders, (a) increase the maximum number of shares for which options
may be granted under this Plan (except by adjustment pursuant to paragraphs 2 and 11), (b) materially modify the requirements as to eligibility to participate in this Plan or (c) materially increase benefits accruing to option holders
under this Plan. Termination or any modification or amendment of this Plan shall not, without consent of a participant, affect his or her rights under an option previously granted to him or her. 
 17. Withholding of Income Taxes. Upon the exercise of an option, the Company, in accordance with Section 3402(a) of the Internal
Revenue Code, may require the optionee to pay 

  

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withholding taxes in respect of amounts considered to be compensation includible in the optionee’s gross income. 
 18. Compliance with Regulations. It is the Company’s intent that the Plan comply in all respects with Rule 16b-3 under the
Securities Exchange Act of 1934 (or any successor or amended provision thereof) and any applicable Securities and Exchange Commission interpretations thereof. If any provision of this Plan is deemed not to be in compliance with Rule 16b-3, the
provision shall be null and void. 
 19. Governing Law. The validity and construction of this Plan and the instruments
evidencing options shall be governed by the laws of the Commonwealth of Massachusetts, without giving effect to the principles of conflicts of law thereof. 
 Amendment and Restatement Adopted by 
 Board of Directors 
 April 18, 2007 
 Amendment and Restatement Adopted by 
 Stockholders 
 May 31, 2007 
  

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