1 CARDIAC PATHWAYS CORPORATION 1991 STOCK PLAN (AS AMENDED APRIL 1996) (AS FURTHER AMENDED OCTOBER 1997) 1. PURPOSES OF THE PLAN. The purposes of this Stock Plan are to attract and retain the best available personnel for positions of substantial responsibility, to provide additional incentive to Employees and Consultants of the Company and its Subsidiaries and to promote the success of the Company's business. Options granted under the Plan may be incentive stock options (as defined under Section 422 of the Code) or nonstatutory stock options, as determined by the Administrator at the time of grant of an option and subject to the applicable provisions of Section 422 of the Code, as amended, and the regulations promulgated thereunder. Stock purchase rights may also be granted under the Plan. 2. CERTAIN DEFINITIONS. As used herein, the following definitions shall apply: (A) "ADMINISTRATOR" means the Board or any of its Committees appointed pursuant to Section 4 of the Plan. (B) "BOARD" means the Board of Directors of the Company. (C) "CODE" means the Internal Revenue Code of 1986, as amended. (D) "COMMITTEE" means the Committee appointed by the Board of Directors in accordance with paragraph (a) of Section 4 of the Plan. (E) "COMMON STOCK" means the Common Stock of the company. (F) "COMPANY" means Cardiac Pathways Corporation, a California corporation. (G) "CONSULTANT" means any person, including an advisor, who is engaged by the Company or any Parent or Subsidiary to render services and is compensated for such services. The term Consultant shall not include directors who are not compensated for their services or are paid only a director's fee by the Company. (H) "CONTINUOUS STATUS AS AN EMPLOYEE OR CONSULTANT" means that the employment or consulting relationship with the Company, any Parent, or Subsidiary, is not interrupted or terminated. Continuous Status as an Employee or Consultant shall not be considered interrupted in the case of (i) any leave of absence approved by the Company or (ii) transfers between locations of the Company or between the Company, its Parent, any Subsidiary, or any successor. A leave of absence approved by the Company shall include sick leave, military leave, or any other 2 personal leave approved by an authorized representative of the Company. For purposes of Incentive Stock Options, no such leave may exceed ninety days, unless reemployment upon expiration of such leave is guaranteed by statute or contract. If reemployment upon expiration of a leave of absence approved by the Company is not so guaranteed, on the 181st day of such leave any Incentive Stock Option held by the Optionee shall cease to be treated as an Incentive Stock Option and shall be treated for tax purposes as a Nonstatutory Stock Option. (I) "EMPLOYEE" means any person, including officers and directors, employed by the Company or any Parent or Subsidiary of the Company. The payment of a director's fee by the Company shall not be sufficient to constitute "employment" by the Company. (J) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended. (K) "FAIR MARKET VALUE" means, 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 time 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, the Fair Market Value of a Share of Common Stock shall be the mean between the high bid and low asked prices for the Common Stock on the last market trading day prior to the day 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 shall be determined in good faith by the Administrator. (L) "INCENTIVE STOCK OPTION" means an Option intended to qualify as an incentive stock option within the meaning of Section 422 of the Code. (M) "NONSTATUTORY STOCK OPTION" means an Option not intended to qualify as an Incentive Stock Option. (N) "OPTION" means a stock option granted pursuant to the Plan. (O) "OPTIONED STOCK" means the Common Stock subject to an Option. (P) "OPTIONEE" means an Employee or Consultant who receives an Option. -2- 3 (Q) "PARENT" means a "parent corporation," whether now or hereafter existing, as defined in Section 424(e) of the Code. (R) "PLAN" means this 1991 Stock Plan. (S) "RESTRICTED STOCK" means shares of Common Stock acquired pursuant to a grant of a Stock Purchase Right under Section 11 below. (T) "SHARE" means a share of the Common Stock, as adjusted in accordance with Section 13 of the Plan. (U) "SUBSIDIARY" means a "subsidiary corporation," whether now or hereafter existing, as defined in Section 424(f) of the Code. 3. STOCK SUBJECT TO THE PLAN. Subject to the provisions of Section 14 of the Plan, the maximum aggregate number of shares which may be optioned and sold under the Plan is 2,267,030 shares of Common Stock. The shares may be authorized, but unissued, or re-acquired Common Stock. If an Option or Stock Purchase Right should expire or become unexercisable for any reason without having been exercised in full, the unpurchased Shares which were subject thereto shall, unless the Plan shall have been terminated, become available for future grant under the Plan. 4. ADMINISTRATION OF THE PLAN. (A) PROCEDURE. (i) MULTIPLE ADMINISTRATIVE BODIES. If permitted by Rule 16b-3, the Plan may be administered by different bodies with respect to directors, officers who are not directors, and Employees who are neither directors nor officers. (ii) ADMINISTRATION WITH RESPECT TO DIRECTORS AND OFFICERS SUBJECT TO SECTION 16(b). With respect to Option or Stock Purchase Right grants made to Employees who are also officers or directors subject to Section 16 of the Exchange Act, the Plan shall be administered by (A) the Board, if the Board may administer the Plan in a manner complying with the rules under Rule 16b-3 relating to the disinterested administration of employee benefit plans under which Section 16(b) exempt discretionary grants and awards of equity securities are to be made, or (B) a Committee designated by the Board to administer the Plan, which Committee shall be constituted to comply with the rules under Rule 16b-3 relating to the disinterested administration of employee benefit plans under which Section 16(b) exempt discretionary grants and awards of equity securities are to be made. Once appointed, such Committee shall continue to serve in its designated capacity until otherwise directed by the Board. From time to time the Board may increase the size of the Committee and appoint additional members, remove members (with or without cause) and substitute new members, fill vacancies (however caused), and remove all members of the Committee and -3- 4 thereafter directly administer the Plan, all to the extent permitted by the rules under Rule 16b-3 relating to the disinterested administration of employee benefit plans under which Section 16(b) exempt discretionary grants and awards of equity securities are to be made. (iii) ADMINISTRATION WITH RESPECT TO OTHER PERSONS. With respect to Option or Stock Purchase Right grants made to Employees or Consultants who are neither directors nor officers of the Company, the Plan shall be administered by (A) the Board or (B) a Committee designated by the Board, which committee shall be constituted to satisfy the legal requirements relating to the administration of incentive stock plans of California corporate and securities laws and the Code (the "Applicable Laws"). Once appointed, such Committee shall serve in its designated capacity until otherwise directed by the Board. The Board may increase the size of the Committee and appoint additional members, remove members (with or without cause) and substitute new members, fill vacancies (however caused), and remove all members of the Committee and thereafter directly administer the Plan, all to the extent permitted by Applicable Laws. (B) POWERS OF THE ADMINISTRATOR. Subject to the provisions of the Plan and in the case of a Committee, the specific duties delegated by the Board to such Committee, the Administrator shall have the authority, in its discretion: (i) to determine the Fair Market Value of the Common Stock, in accordance with Section 2(k) of the Plan; (ii) to select the Consultants and Employees to whom Options and Stock Purchase Rights may from time to time be granted hereunder; (iii) to determine whether and to what extent Options and Stock Purchase Rights or any combination thereof, are granted hereunder; (iv) to determine the number of shares of Common Stock to be covered by each such award granted hereunder; (v) to approve forms of agreement for use under the Plan; (vi) to determine the terms and conditions, not inconsistent with the terms of the Plan, of any award granted hereunder (including, but not limited to, the share price and any restriction or limitation or waiver of forfeiture restrictions regarding any Option or other award and/or the shares of Common Stock relating thereto, based in each case on such factors as the Administrator shall determine, in its sole discretion; (vii) to determine whether and under what circumstances an Option may be settled in cash under subsection 10(f) instead of Common Stock; (viii) to determine whether, to what extent and under what circumstances Common Stock and other amounts payable with respect to an award under this Plan shall be deferred -4- 5 either automatically or at the election of the participant (including providing for and determining the amount, if any, of any deemed earnings on any deferred amount during any deferral period); (ix) to reduce the exercise price of any Option to the then current Fair Market Value if the Fair Market Value of the Common Stock covered by such Option shall have declined since the date the Option was granted; provided, however, that the Administrator must seek the prior consent of the Board of Directors and stockholders of the Company to effect such action; and (x) to determine the terms and restrictions applicable to Stock Purchase Rights and the Restricted Stock purchased by exercising such Stock Purchase Rights. (C) EFFECT OF COMMITTEE'S DECISION. All decisions, determinations and interpretations of the Administrator shall be final and binding on all Optionees and any other holders of any Options. 5. ELIGIBILITY. Nonstatutory Stock Options and Stock Purchase Rights may be granted to Employees and Consultants. Incentive Stock Options may be granted only to Employees. An Employee or Consultant who has been granted an Option or Stock Purchase Right may, if he is otherwise eligible, be granted additional Options or Stock Purchase Rights. 6. LIMITATIONS. (a) Each Option shall be designated in the written option agreement as either an Incentive Stock Option or a Nonstatutory Stock Option. However, notwithstanding such designation, to the extent that the aggregate Fair Market Value of the Shares with respect to which Incentive Stock Options are exercisable for the first time by the Optionee during any calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds $100,000, such Options shall be treated as Nonstatutory Stock Options. For purposes of this Section 6(a), Incentive Stock Options shall be taken into account in the order in which they were granted. The Fair Market Value of the Shares shall be determined as of the time the Option with respect to such Shares is granted. If an Option is granted hereunder that is part Incentive Stock Option and part Nonstatutory Stock Option due to becoming first exercisable in any calendar year in excess of $100,000, the Incentive Stock Option portion of such Option shall become exercisable first in such calendar year, and the Nonstatutory Stock Option portion shall commence becoming exercisable once the $100,000 limit has been reached. (b) Neither the Plan nor any Option or Stock Purchase Right shall confer upon an Optionee any right with respect to continuing the Optionee's employment or consulting relationship with the Company, nor shall they interfere in any way with the Optionee's right or the Company's right to terminate such employment or consulting relationship at any time, with or without cause. (c) The following limitations shall apply to grants of Options and Stock Purchase Rights to Employees: -5- 6 (i) No Employee shall be granted, in any fiscal year of the Company, Options to purchase more than 200,000 Shares. (ii) In connection with his or her initial employment, an Employee may be granted Options to purchase up to an additional 100,000 Shares which shall not count against the limit set forth in subsection (i) above. (iii) The foregoing limitations shall be adjusted proportionately in connection with any change in the Company's capitalization as described in Section 14. (iv) If an Option or Stock Purchase Right is cancelled in the same fiscal year of the Company in which it was granted (other than in connection with a transaction described in Section 14), the cancelled Option or Stock Purchase Right will be counted against the limits set forth in subsections (i) and (ii) above. For this purpose, if the exercise price of an Option or Stock Purchase Right is reduced, the transaction will be treated as a cancellation of the Option or Stock Purchase Right and the grant of a new Option or Stock Purchase Right. 7. TERM OF PLAN. The Plan shall become effective upon the earlier to occur of its adoption by the Board of Directors or its approval by the stockholders of the Company as described in Section 20 of the Plan. It shall continue in effect for a term of ten (10) years unless sooner terminated under Section 16 of the Plan. 8. TERM OF OPTION. The term of each Option shall be the term stated in the Option Agreement; provided, however, that in the case of an Incentive Stock Option, the term shall be no more than ten (10) years from the date of grant thereof or such shorter term as may be provided in the Option Agreement. However, in the case of an Option granted to an Optionee who, at the time the Option is granted, owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the term of the Option shall be five (5) years from the date of grant thereof or such shorter term as may be provided in the Option Agreement. 9. OPTION EXERCISE PRICE AND CONSIDERATION. (A) The per share exercise price for the Shares to be issued pursuant to exercise of an Option shall be such price as is determined by the Administrator, but shall be subject to the following: (i) In the case of an INCENTIVE STOCK OPTION (A) granted to an Employee who, at the time of the grant of such Incentive Stock Option, owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the per Share exercise price shall be no less than 110% of the Fair Market Value per Share on the date of grant. -6- 7 (B) granted to any other Employee, the per Share exercise price shall be no less than 100% of the Fair Market Value per Share on the date of grant. (ii) In the case of a NONSTATUTORY STOCK OPTION, the per Share exercise price shall be determined by the Administrator. (B) FORM OF CONSIDERATION. The Administrator shall determine the acceptable form of consideration for exercising an Option, including the method of payment. In the case of an Incentive Stock Option, the Administrator shall determine the acceptable form of consideration at the time of grant. Such consideration may consist entirely of: (i) cash; (ii) check; (iii) promissory note; (iv) other Shares which (A) in the case of Shares acquired upon exercise of an option, have been owned by the Optionee for more than six months on the date of surrender, and (B) have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the Shares as to which said Option shall be exercised; (v) delivery of a properly executed exercise notice together with such other documentation as the Administrator and the broker, if applicable, shall require to effect an exercise of the Option and delivery to the Company of the sale or loan proceeds required to pay the exercise price; (vi) a reduction in the amount of any Company liability to the Optionee, including any liability attributable to the Optionee's participation in any Company-sponsored deferred compensation program or arrangement; (vii) any combination of the foregoing methods of payment; or (viii) such other consideration and method of payment for the issuance of Shares to the extent permitted by Applicable Laws. 10. EXERCISE OF OPTION. (A) PROCEDURE FOR EXERCISE; RIGHTS AS A STOCKHOLDER. Any Option granted hereunder shall be exercisable at such times and under such conditions as determined by the Administrator, including performance criteria with respect to the Company and/or the Optionee, and as shall be permissible under the terms of the Plan. An Option may not be exercised for a fraction of a Share. -7- 8 An Option shall be deemed to be exercised when written notice of such exercise has been given to the Company in accordance with the terms of the Option by the person entitled to exercise the Option, and full payment for the Shares with respect to which the Option is exercised has been received by the Company. Full payment may, as authorized by the Administrator, consist of any consideration and method of payment allowable under Section 9(b) of the Plan. Until the issuance (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company) of the stock certificate evidencing such Shares, no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Optioned Stock, notwithstanding the exercise of the Option. The Company shall issue (or cause to be issued) such stock certificate promptly upon exercise of the Option. No adjustment will be made for a dividend or other right for which the record date is prior to the date the stock certificate is issued, except as provided in Section 14 of the Plan. Exercise of an Option in any manner shall result in a decrease in the number of Shares which thereafter may be available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to which the Option is exercised. (B) TERMINATION OF EMPLOYMENT OR CONSULTING RELATIONSHIP. Upon termination of an Optionee's Continuous Status as an Employee, other than upon the Optionee's death or Disability, the Optionee may exercise his or her Option within such period of time as is specified in the option agreement to the extent that he or she is entitled to exercise it on the date of termination (but in no event later than the expiration of the term of such Option). In the absence of a specified time in the option agreement, the Option shall remain exercisable for three (3) months following the Optionee's termination. In the case of an Incentive Stock Option, such period of time for exercise shall not exceed three (3) months from the date of termination. If, on the date of termination, the Optionee is not entitled to exercise his or her entire Option, the Shares covered by the unexercisable portion of the Option shall revert to the Plan. If, after termination, the Optionee does not exercise his or her Option within the time specified by the Administrator, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan. Notwithstanding the above, in the event of an Optionee's change in status from Consultant to Employee or Employee to Consultant, the Optionee's Continuous Status as an Employee or Consultant shall not automatically terminate solely as a result of such change in status. In such event, an Incentive Stock Option held by the Optionee shall cease to be treated as an Incentive Stock Option and shall be treated for tax purposes as a Nonstatutory Stock Option beginning three months and one day following such change of status. (C) DISABILITY OF OPTIONEE. Upon termination of an Optionee's Continuous Status as an Employee or Consultant as a result of the Optionee's total and permanent disability (as defined in Section 22(e)(3) of the Code), the Optionee may exercise his or her Option at any time within twelve (12) months from the date of termination, but only to the extent that the Optionee is entitled to exercise it on the date of termination (and in no event later than the expiration of the term of the Option). If, on the date of termination, the Optionee is not entitled to exercise his or her entire Option, the Shares covered by the unexercisable portion of the Option shall revert to the Plan. If, -8- 9 after termination, the Optionee does not exercise his or her Option within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan. (D) DEATH OF OPTIONEE. Upon the death of an Optionee, the Option may be exercised at any time within twelve (12) months following the date of death (but in no event later than the expiration of the term of such Option), by the Optionee's estate or by a person who acquires the right to exercise the Option by bequest or inheritance, but only to the extent that the Optionee would have been entitled to exercise the Option on the date of death. If, at the time of death, the Optionee is not entitled to exercise his or her entire Option, the Shares covered by the unexercisable portion of the Option shall immediately revert to the Plan. If the Optionee's estate or the person who acquires the right to exercise the Option by bequest or inheritance does not exercise the Option within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan. (E) RULE 16B-3. Options granted to persons subject to Section 16 of the Exchange Act must comply with Rule 16b-3 and shall contain such additional conditions or restrictions as may be required thereunder to qualify for the maximum exemption from Section 16 of the Exchange Act with respect to Plan transactions. (F) BUYOUT PROVISIONS. The Administrator may at any time offer to buy out for a payment in cash or Shares, an Option previously granted, based on such terms and conditions as the Administrator shall establish and communicate to the Optionee at the time that such offer is made. 11. STOCK PURCHASE RIGHTS. (A) RIGHTS TO PURCHASE. Stock Purchase Rights may be issued either alone, in addition to, or in tandem with other awards granted under the Plan and/or cash awards made outside of the Plan. After the Administrator determines that it will offer Stock Purchase Rights under the Plan, it shall advise the offeree in writing of the terms, conditions and restrictions related to the offer, including the number of Shares that such person shall be entitled to purchase, the price to be paid (which price shall not be less than 50% of the Fair Market Value of the Shares as of the date of the offer), and the time within which such person must accept such offer, which shall in no event exceed thirty (30) days from the date upon which the Administrator made the determination to grant the Stock Purchase Right. The offer shall be accepted by execution of a Restricted Stock purchase agreement in the form determined by the Administrator. Shares purchased pursuant to the grant of a Stock Purchase Right shall be referred to herein as "Restricted Stock." (B) REPURCHASE OPTION. Unless the Administrator determines otherwise, the Restricted Stock purchase agreement shall grant the Company a repurchase option exercisable upon the voluntary or involuntary termination of the purchaser's employment with the Company for any reason (including death or Disability). The purchase price for Shares repurchased pursuant to the Restricted Stock purchase agreement shall be the original price paid by the purchaser and may be paid by cancellation of any indebtedness of the purchaser to the Company. The repurchase option shall lapse at such rate as the Committee may determine. -9- 10 (C) RULE 16B-3. Stock Purchase Rights granted to persons subject to Section 16 of the Exchange Act, and Shares purchased by such persons in connection with Stock Purchase Rights, shall be subject to any restrictions applicable thereto in compliance with Rule 16b-3. Such persons may only purchase Shares pursuant to the grant of a Stock Purchase Right, and may only sell Shares purchased pursuant to the grant of a Stock Purchase Right, during such time or times as are permitted by Rule 16b-3. (D) OTHER PROVISIONS. The Restricted Stock purchase agreement shall contain such other terms, provisions and conditions not inconsistent with the Plan as may be determined by the Administrator in its sole discretion. In addition, the provisions of Restricted Stock purchase agreements need not be the same with respect to each purchaser. (E) RIGHTS AS A STOCKHOLDER. Once the Stock Purchase Right is exercised, the purchaser shall have the rights equivalent to those of a stockholder, and shall be a stockholder when his or her purchase is entered upon the records of the duly authorized transfer agent of the Company. No adjustment will be made for a dividend or other right for which the record date is prior to the date the Stock Purchase Right is exercised, except as provided in Section 14 of the Plan. 12. NON-TRANSFERABILITY OF OPTIONS AND STOCK PURCHASE RIGHTS. An Option or Stock Purchase Right may not be sold, pledged, assigned, hypothecated, transferred, or disposed of in any manner other than by will or by the laws of descent or distribution and may be exercised, during the lifetime of the Optionee, only by the Optionee. 13. STOCK WITHHOLDING TO SATISFY WITHHOLDING TAX OBLIGATIONS. At the discretion of the Administrator, Optionees may satisfy withholding obligations as provided in this paragraph. When an Optionee incurs tax liability in connection with an Option or Stock Purchase Right, which tax liability is subject to tax withholding under applicable tax laws, and the Optionee is obligated to pay the Company an amount required to be withheld under applicable tax laws, the Optionee may satisfy the withholding tax obligation by electing to have the Company withhold from the Shares to be issued upon exercise of the Option, or the Shares to be issued in connection with the Stock Purchase Right, if any, that number of Shares having a Fair Market Value equal to the amount required to be withheld. The Fair Market Value of the Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined (the "Tax Date"). All elections by an Optionee to have Shares withheld for this purpose shall be made in writing in a form acceptable to the Administrator and shall be subject to the following restrictions: (A) the election must be made on or prior to the applicable Tax Date; (B) once made, the election shall be irrevocable as to the particular Shares of the Option or Right as to which the election is made; (C) all elections shall be subject to the consent or disapproval of the Administrator; -10- 11 (D) if the Optionee is subject to Section 16 of the Exchange Act, the election must comply with the applicable provisions of Rule 16b-3 and shall be subject to such additional conditions or restrictions as may be required thereunder to qualify for the maximum exemption from Section 16 of the Exchange Act with respect to Plan transactions. In the event the election to have Shares withheld is made by an Optionee and the Tax Date is deferred under Section 83 of the Code because no election is filed under Section 83(b) of the Code, the Optionee shall receive the full number of Shares with respect to which the Option or Stock Purchase Right is exercised, but such Optionee shall be unconditionally obligated to tender back to the Company the proper number of Shares on the Tax Date. 14. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION, DISSOLUTION, MERGER OR ASSET SALE. (A) CHANGES IN CAPITALIZATION. Subject to any required action by the stockholders of the Company, the number of shares of Common Stock covered by each outstanding Option and Stock Purchase Right, and the number of shares of Common Stock which have been authorized for issuance under the Plan but as to which no Options or Stock Purchase Rights have yet been granted or which have been returned to the Plan upon cancellation or expiration of an Option or Stock Purchase Right, as well as the price per share of Common Stock covered by each such outstanding Option or Stock Purchase Right, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock resulting from a stock split, reverse stock split, stock dividend, combination or reclassification of the Common Stock, or any other increase or decrease in the number of issued 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 Board, 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 or Stock Purchase Right. (B) DISSOLUTION OR LIQUIDATION. In the event of the proposed dissolution or liquidation of the Company, the Administrator shall notify each Optionee as soon as practicable prior to the effective date of such proposed transaction. The Administrator in its discretion may provide for an Optionee to have the right to exercise his or her Option until ten (10) days prior to such transaction as to all of the Optioned Stock covered thereby, including Shares as to which the Option would not otherwise be exercisable. In addition, the Administrator may provide that any Company repurchase option applicable to any Shares purchased upon exercise of an Option shall lapse as to all such Shares, provided the proposed dissolution or liquidation takes place at the time and in the manner contemplated. To the extent it has not been previously exercised, an Option will terminate immediately prior to the consummation of such proposed action. -11- 12 (C) MERGER OR ASSET SALE. In the event of a merger of the Company with or into another corporation, or the sale of substantially all of the assets of the Company, each outstanding Option and Stock Purchase Right shall be assumed or an equivalent option or right 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 or Stock Purchase Right, the Optionee shall have the right to exercise the Option or Stock Purchase Right as to all of the Optioned Stock, including Shares as to which it would not otherwise be exercisable. If an Option or Stock Purchase Right is exercisable in lieu of assumption or substitution in the event of a merger or sale of assets, the Administrator shall notify the Optionee that the Option or Stock Purchase Right shall be fully exercisable for a period of fifteen (15) days from the date of such notice, and the Option or Stock Purchase Right shall terminate upon the expiration of such period. For the purposes of this paragraph, the Option or Stock Purchase Right shall be considered assumed if, following the merger or sale of assets, the option or right confers the right to purchase or receive, for each Share of Optioned Stock subject to the Option or Stock Purchase Right immediately prior to the merger or sale of assets, the consideration (whether stock, cash, or other securities or property) received in the merger or sale of assets by holders of Common Stock for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the merger or sale of assets was not solely common stock of the successor corporation or its Parent, the Administrator may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of the Option or Stock Purchase Right, for each Share of Optioned Stock subject to the Option or Stock Purchase Right, to be solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received by holders of Common Stock in the merger or sale of assets. 15. TIME OF GRANTING OPTIONS. The date of grant of an Option or Stock Purchase Right shall, for all purposes, be the date on which the Administrator makes the determination granting such Option or Stock Purchase Right, or such other date as is determined by the Board. Notice of the determination shall be given to each Employee or Consultant to whom an Option or Stock Purchase Right is so granted within a reasonable time after the date of such grant. 16. AMENDMENT AND TERMINATION OF THE PLAN. The Board may at any time amend, alter, suspend or discontinue the Plan, but no amendment, alteration, suspension or discontinuation shall be made which would impair the rights of any Optionee under any grant theretofore made, without his or her consent. In addition, to the extent necessary and desirable to comply with Rule 16b-3 under the Exchange Act or with Section 422 of the Code (or any other applicable law or regulation, including the requirements of the NASD of an established stock exchange), the Company shall obtain stockholder approval of any Plan amendment in such a manner and to such a degree as required. 17. CONDITIONS UPON ISSUANCE OF SHARES. Shares shall not be issued pursuant to the exercise of an Option unless the exercise of such Option and the issuance and delivery of such Shares pursuant thereto shall comply with all relevant provisions of law, including, without limitation, the Securities Act of 1933, as amended, the Exchange Act, the rules and regulations -12- 13 promulgated thereunder, and the requirements of any stock exchange upon which the Shares may then be listed, and shall be further subject to the approval of counsel for the Company with respect to such compliance. 18. RESERVATION OF SHARES. The Company, during the term of this Plan, shall at all times reserve and keep available such number of Shares as shall be sufficient to satisfy the requirements of the Plan. The inability of the Company to obtain authority from any regulatory body having jurisdiction, which authority is deemed by the Company's counsel to be necessary to the lawful issuance and sale of any Shares hereunder, shall relieve the Company of any liability in respect of the failure to issue or sell such Shares as to which such requisite authority shall not have been obtained. 19. AGREEMENTS. Options and Stock Purchase Rights shall be evidenced by written agreements in such form as the Board shall approve from time to time. 20. STOCKHOLDER APPROVAL. Continuance of the Plan shall be subject to approval by the stockholders of the Company within twelve (12) months before or after the date the Plan is adopted. Such stockholder approval shall be obtained in the degree and manner required under applicable state and federal law. In addition, should the Administrator determine that it is appropriate to reduce the exercise price of any Option pursuant to Section 4(b)(ix) of the Plan, the Administrator shall seek the prior consent of the stockholders to effect such action. -13-