ANESTA CORP /DE/
S-8, 1999-12-03
PHARMACEUTICAL PREPARATIONS
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<PAGE>   1
    As filed with the Securities and Exchange Commission on December 3, 1999
                                                 Registration No. 333-__________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                ----------------

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                                ----------------


                                  ANESTA CORP.
          -------------------------------------------------------------
                  (Exact name of registrant as specified in its
                                    charter)



          DELAWARE                                       87-0424798
  (State of Incorporation)                  (I.R.S. Employer of Identification
                                                            No.)
                               4745 WILEY POST WAY
                               PLAZA 6, SUITE 650
                           SALT LAKE CITY, UTAH 84116
                                 (801) 595-1405
          -------------------------------------------------------------
          (Address and telephone number of principal executive offices)





                             1993 STOCK OPTION PLAN
                       1993 NON-EMPLOYEE DIRECTORS' STOCK
                                   OPTION PLAN
            -------------------------------------------------------
                            (Full title of the plan)


                                 THOMAS B. KING
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                  ANESTA CORP.
                               4745 WILEY POST WAY
                               PLAZA 6, SUITE 650
                           SALT LAKE CITY, UTAH 84116
                                 (801) 595-1405
            ----------------------------------------------------------
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

                                ----------------

                                   Copies to:
                            JAMES C.T. LINFIELD, ESQ.
                               COOLEY GODWARD LLP
                        2595 CANYON BOULEVARD, SUITE 250
                          BOULDER, COLORADO 80302-6737
                                 (303) 546-4000

                                ----------------

                         Exhibit Index appears on Page 4

                                       1.
<PAGE>   2

<TABLE>
<CAPTION>
                                                CALCULATION OF REGISTRATION FEE
==================================================================================================================================

    =========================== ========================= ========================= ========================= ====================
                                                              PROPOSED MAXIMUM          PROPOSED MAXIMUM
       TITLE OF SECURITIES TO          AMOUNT TO BE          OFFERING PRICE PER        AGGREGATE OFFERING         AMOUNT OF
          BE REGISTERED               REGISTERED (1)             SHARE (1)                  PRICE (1)           REGISTRATION FEE
    --------------------------- ------------------------- ------------------------- ------------------------- --------------------
    <S>                               <C>                    <C>                       <C>                          <C>
    Stock Options and Common
    Stock (par value $.001)              900,000                  $ 13.6875               $ 12,318,750              $ 3,252.15
    --------------------------- ------------------------- ------------------------- ------------------------- --------------------

====================================================================================================================================
</TABLE>

(1)      Comprised of 700,000 shares of Common Stock to be registered under the
         1993 Stock Option Plan, as amended, and 200,000 shares of Common Stock
         to be registered under the 1993 Non-Employee Directors' Stock Option
         Plan, as amended.

(2)      Estimated solely for the purpose of calculating the amount of the
         registration fee, pursuant to Rule 457(h) under the Securities Act of
         1933, as amended (the "Act"). The offering price per share and
         aggregate offering price are based on the price per share and aggregate
         offering price based upon the closing price of Registrant's Common
         Stock on November 29, 1999 as reported on the Nasdaq National Market
         for options and shares to be granted under the 1993 Stock Option Plan,
         as amended, and the 1993 Non-Employee Directors' Stock Option Plan, as
         amended.


================================================================================

         Approximate date of commencement of proposed sale to the public: as
soon as practicable after this Registration Statement becomes effective.


                                       2.
<PAGE>   3


                                     PART I

         ITEM 1.  PLAN INFORMATION

                  Not required to be filed with this Registration Statement.

         ITEM 2.  REGISTRANT INFORMATION AND EMPLOYEE PLAN ANNUAL INFORMATION

                  Not required to be filed with this Registration Statement.

                                     PART II

         ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE

         The following documents filed by Anesta Corp., a Delaware corporation
(the "Company" or the "Registrant") with the Securities and Exchange Commission
(the "Commission") are incorporated by reference into this Registration
Statement:

         (a) The Registration Statement on Form S-8 No. 33-74650 filed on
February 1, 1994;

         (b) The Registration Statement on Form S-8 No. 333-31565 filed on July
18, 1997;

         (c) The Registration Statement on Form S-8 No. 333-72281 filed on
February 12, 1998;

         (d) The Company's latest annual report on Form 10-K for the fiscal year
ended December 31, 1998;

         (e) The Company's latest quarterly report on Form 10-Q for the quarter
ended March 31, 1999;

         (f) The Company's latest quarterly report on Form 10-Q for the quarter
ended June 30, 1999;

         (g) The Company's latest quarterly report on Form 10-Q for the quarter
ended October 31, 1999.

         (h) A description of the Company's Common Stock, which is contained in
the Form 8-A Registration Statement filed by the Company with the Commission
which was declared effective on January 27, 1994; and

         (i) All reports and other documents subsequently filed by the Company
pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act
of 1934, as amended (the "Exchange Act") prior to the filing of a post-effective
amendment which indicates that all securities offered have been sold or which
deregisters all securities remaining unsold, shall be deemed to be incorporated
by reference herein and to be a part of this registration statement from the
date of the filing of such reports and documents.

         ITEM 4.  DESCRIPTION OF SECURITIES

         Not required to be filed with this Registration Statement.

         ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL

         Not applicable.

         ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

         Not required to be filed with this Registration Statement.

         ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED

         Not applicable.



                                       3.
<PAGE>   4
       ITEM 8.  EXHIBITS

                                    EXHIBITS

       EXHIBIT
       NUMBER
         5.1         Opinion of Cooley Godward LLP.
         23.1        Consent of PricewaterhouseCoopers LLP
         23.2        Consent of Cooley Godward LLP is contained in Exhibit 5.1
                     to this Registration Statement.
         24.1        Power of Attorney is contained on the signature pages.
         99.5        Registrant's 1993 Stock Option Plan, as amended.
         99.6        Registrant's 1993 Non-Employee Directors' Stock Option
                     Plan, as amended.


       ITEM 9.  UNDERTAKINGS

       Not required to be filed with this Registration Statement.


                                       4.
<PAGE>   5


                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Salt Lake City, State of Utah, on December 3,
1999.

                                      ANESTA CORP.



                                      By  /s/ Thomas B. King
                                        ---------------------------------------
                                         Thomas B. King
                                         President and Chief Executive Officer



                                POWER OF ATTORNEY


         KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Thomas B. King and Roger P. Evans, and
each or any one of them, his true and lawful attorney-in-fact and agent, with
full power of substitution and resubstitution, for him and in his name, place
and stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement, and to file the same,
with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and
every act and thing requisite and necessary to be done in connection therewith,
as fully to all intents and purposes as he might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, or any of
them, or their or his substitutes or substitute, may lawfully do or cause to be
done by virtue hereof.


                                       5.
<PAGE>   6


         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.


<TABLE>
<CAPTION>
         SIGNATURE                                               TITLE                                    DATE
<S>                                                     <C>                                         <C>
                    /s/ William C. Moeller                       Chairman of the Board,             December 3, 1999
- ------------------------------------------------------  Treasurer and Director (Principal
                      William C. Moeller                Financial Officer)


                      /s/ Thomas B. King                         President, Chief Executive         December 3, 1999
- ------------------------------------------------------  Officer and Director (Principal
                        Thomas B. King                  Executive Officer)


                    /s/ Theodore H. Stanley                      Founding Chairman and              December 3, 1999
- ------------------------------------------------------  Secretary
                   Theodore H. Stanley, M.D.


                      /s/ Roger P. Evans                         Vice President, Finance and        December 3, 1999
- ------------------------------------------------------  Administration (Principal Accounting
                        Roger P. Evans                  Officer)


                     /s/ Daniel L. Kisner                        Director                           December 3, 1999
- ------------------------------------------------------
                    Daniel L. Kisner, M.D.


                     /s/ Richard H. Leazer                       Director                           December 3, 1999
- ------------------------------------------------------
                       Richard H. Leazer


                     /s/ Emanuel M. Papper                       Director                           December 3, 1999
- ------------------------------------------------------
                Emanuel M. Papper, M.D., Ph.D.


                     /s/ Richard P. Urfer                        Director                           December 3, 1999
- ------------------------------------------------------
                       Richard P. Urfer
</TABLE>


                                       6.
<PAGE>   7


                                  EXHIBIT INDEX


<TABLE>
<CAPTION>
EXHIBIT
NUMBER                                     DESCRIPTION                                    SEQUENTIAL PAGE NUMBER
- -------                                    -----------                                    ----------------------
<S>          <C>                                                                          <C>
    5.1      Opinion of Cooley LLP
   23.1      Consent of PricewaterhouseCoopers LLP
   23.2      Consent of Cooley Godward LLP is contained in Exhibit 5.1 to this
             Registration Statement.
   24.1      Power of Attorney is contained on the signature pages.
   99.5      Registrant's 1993 Stock Option Plan, as amended.
   99.6      Registrant's 1993 Non-Employee Directors' Stock Option Plan, as
             amended.
</TABLE>


<PAGE>   1
                                                                     EXHIBIT 5.1

                            ATTORNEYS AT LAW               San Francisco, CA
                                                           415 693-2000

COOLEY GODWARD LLP          2595 Canyon Boulevard          Palo Alto, CA
                            Suite 250                      415 843-5000
                            Boulder, CO
                            80302-6737                     Menlo Park, CA
                            Main   303 546-4000            415 843-5000
                            Fax    303 546-4099
                                                           San Diego, CA
                                                           619 550-6000
                                                           Denver, CO
                                                           303 606-4800
                            http://www.cooley.com


                            JAMES C. T. LINFIELD
                            303 546-4010
                            [email protected]

December 3, 1999

Anesta Corp.
4745 Wiley Post Way
Plaza 6, Suite 650
Salt Lake City, UT  84116

         Ladies and Gentlemen:

         You have requested our opinion with respect to certain matters in
connection with the filing by Anesta Corp. (the "Company") of a Registration
Statement on Form S-8 (the "Registration Statement") with the Securities and
Exchange Commission covering the offering of up to 700,000 shares of the
Company's Common Stock, $.001 par value, pursuant to its 1993 Stock Option Plan,
as amended (the "Plan"), and up to 200,000 shares of the Company's Common Stock
pursuant to its 1993 Non-Employee Directors' Stock Option Plan (the "Directors'
Plan") (collectively, the "Shares").

         In connection with this opinion, we have examined the Registration
Statement and related Prospectuses, your Certificate of Incorporation and
By-laws, as amended, and such other documents, records, certificates, memoranda
and other instruments as we deem necessary as a basis for this opinion. We have
assumed the genuineness and authenticity of all documents submitted to us as
originals, the conformity to originals of all documents submitted to us as
copies thereof, and the due execution and delivery of all documents where due
execution and delivery are a prerequisite to the effectiveness thereof.

         On the basis of the foregoing, and in reliance thereon, we are of the
opinion that the Shares, when sold and issued in accordance with the Plan or the
Directors' Plan, respectively, the Registration Statement and related
Prospectuses, will be validly issued, fully paid, and nonassessable (except as
to shares issued pursuant to certain deferred payment arrangements, which will
be fully paid and nonassessable when such deferred payments are made in full).

         We consent to the filing of this opinion as an exhibit to the
Registration Statement.

         Very truly yours,

Cooley Godward LLP



By:  /s/ James C.T. Linfield
   -------------------------------
     James C. T. Linfield



<PAGE>   1
                                                                    EXHIBIT 23.1



                       Consent of Independent Accountants




We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated February 23, 1999 relating to the
financial statements, which appears in the 1998 Annual Report to Shareholders of
Anesta Corp., which is incorporated by reference in Anesta Corp.'s Annual Report
on Form 10-K for the year ended December 31, 1998. We also consent to the
incorporation by reference of our report dated February 23, 1999 relating to the
financial statement schedules, which appears in such Annual Report on Form 10-K.




/s/ PricewaterhouseCoopers LLP



Salt Lake City, Utah
November 30, 1999

<PAGE>   1
                                                                    EXHIBIT 99.5

                                  ANESTA CORP.

                               STOCK OPTION PLAN

                           ADOPTED SEPTEMBER 13, 1993
                             AMENDED AUGUST 22, 1996
                            AMENDED FEBRUARY 26, 1997
                     APPROVED BY STOCKHOLDERS JUNE 17, 1997
                             AMENDED APRIL 24, 1998
                     APPROVED BY STOCKHOLDERS JUNE 23, 1998
                              AMENDED APRIL 6, 1999

1.       PURPOSES.

         (a) The purpose of the Plan is to provide a means by which selected
Employees and Directors of and Consultants to the Company, and its Affiliates,
may be given an opportunity to purchase stock of the Company.

         (b) The Company, by means of the Plan, seeks to retain the services of
persons who are now Employees or Directors of or Consultants to the Company and
its Affiliates, to secure and retain the services of new Employees, Directors
and Consultants, and to provide incentives for such persons to exert maximum
efforts for the success of the Company and its Affiliates.

         (c) The Company intends that the Options issued under the Plan shall,
in the discretion of the Board or any Committee to which responsibility for
administration of the Plan has been delegated pursuant to subsection 3(c), be
either Incentive Stock Options or Nonstatutory Stock Options. All Options shall
be separately designated Incentive Stock Options or Nonstatutory Stock Options
at the time of grant, and in such form as issued pursuant to Section 6, and a
separate certificate or certificates will be issued for shares purchased on
exercise of each type of Option.


                                       1.
<PAGE>   2


2. DEFINITIONS.

         (a) "AFFILIATE" means any parent corporation or subsidiary corporation,
whether now or hereafter existing, as those terms are defined in Sections 424(e)
and (f) respectively, of the Code.

         (b) "BOARD" means the Board of Directors of the Company.

         (c) "CODE" means the Internal Revenue Code of 1986, as amended.

         (d) "COMMITTEE" means a Committee appointed by the Board in accordance
with subsection 3(c) of the Plan.

         (e) "COMPANY" means Anesta Corp., a Delaware corporation.

         (f) "CONSULTANT" means any person, including an advisor, engaged by the
Company or an Affiliate to render services and who is compensated for such
services, provided that the term "Consultant" shall not include Directors who
are paid only a director's fee by the Company or who are not compensated by the
Company for their services as Directors.

         (g) "CONTINUOUS STATUS AS AN EMPLOYEE, DIRECTOR OR CONSULTANT" means
the employment or relationship as a Director or Consultant is not interrupted or
terminated. The Board, in its sole discretion, may determine whether Continuous
Status as an Employee, Director or Consultant shall be considered interrupted in
the case of: (i) any leave of absence approved by the Board, including sick
leave, military leave, or any other personal leave; or (ii) transfers between
locations of the Company or between the Company, Affiliates or their successors.

         (h) "DIRECTOR" means a member of the Board.

         (i) "DISABILITY" means total and permanent disability as defined in
Section 22(e)(3) of the Code.


                                       2.
<PAGE>   3


         (j) "DISINTERESTED PERSON" means a Director: (i) who was not during the
one year prior to service as an administrator of the Plan granted or awarded
equity securities pursuant to the Plan or any other plan of the Company or any
of its affiliates entitling the participants therein to acquire equity
securities of the Company or any of its affiliates except as permitted by Rule
16b-3(c)(2)(i); or (ii) who is otherwise considered to be a "disinterested
person" in accordance with Rule 16b-3(c)(2)(i), or any other applicable rules,
regulations or interpretations of the Securities and Exchange Commission.

         (k) "EMPLOYEE" means any person, including Officers and Directors,
employed by the Company or any Affiliate of the Company. Neither service as a
Director nor payment of a director's fee by the Company shall be sufficient to
constitute "employment" by the Company.

         (l) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

         (m) "FAIR MARKET VALUE" means, as of any date, the value of the common
stock of the Company determined as follows:

                  (1) If the common stock is listed on any established stock
exchange or a national market system, including without limitation the National
Market System of the National Association of Securities Dealers, Inc. Automated
Quotation ("NASDAQ") System, the Fair Market Value of a share of common stock
shall be the closing sales price for such stock (or the closing bid, if no sales
were reported) as quoted on such system or exchange (or the exchange with the
greatest volume of trading in common stock) on the last market trading day prior
to the day of determination, as reporting in the Wall Street Journal or such
other source as the Board deems reliable;


                                       3.
<PAGE>   4


                  (2) If the common stock is quoted on the NASDAQ System (but
not on the National Market System thereof) or 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 bid and
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 Board deems reliable;

                  (3) In the absence of an established market for the common
stock, the Fair Market Value shall be determined in good faith by the Board.

         (n) "INCENTIVE STOCK OPTION" means an Option intended to qualify as an
incentive stock option within the meaning of Section 422 of the Code and the
regulations promulgated thereunder.

         (o) "NON-EMPLOYEE DIRECTOR" means a Director of the Company who is not
otherwise an Employee.

         (p) "NONSTATUTORY STOCK OPTION" means an Option not intended to qualify
as an Incentive Stock Option.

         (q) "OFFICER" means a person who is an officer of the Company within
the meaning of Section 16 of the Exchange Act and the rules and regulations
promulgated thereunder.

         (r) "OPTION" means a stock option granted pursuant to the Plan.

         (s) "OPTION AGREEMENT" means a written agreement between the Company
and an Optionee evidencing the terms and conditions of an individual Option
grant. Each Option Agreement shall be subject to the terms and conditions of the
Plan.


                                       4.
<PAGE>   5


         (t) "OPTIONED STOCK" means the common stock of the Company subject to
an Option.

         (u) "OPTIONEE" means an Employee, Director or Consultant who holds an
outstanding Option.

         (v) "PLAN" means this 1993 Anesta Corp. Stock Option Plan.

         (w) "RULE 16b-3" means Rule 16b-3 of the Exchange Act or any successor
to Rule 16b-3, as in effect when discretion is being exercised with respect to
the Plan.

3.       ADMINISTRATION.

         (a) The Plan shall be administered by the Board unless and until the
Board delegates administration to a Committee, as provided in subsection 3(c).

         (b) The Board shall have the power, subject to, and within the
limitations of, the express provisions of the Plan:

                  (1) To determine from time to time which of the persons
eligible under the Plan shall be granted Options; when and how each Option shall
be granted; whether an Option will be an Incentive Stock Option or a
Nonstatutory Stock Option; the provisions of each Option granted (which need not
be identical), including the time or times such Option may be exercised in whole
or in part; and the number of shares for which an Option shall be granted to
each such person.

                  (2) To construe and interpret the Plan and Options granted
under it, and to establish, amend and revoke rules and regulations for its
administration. The Board, in the exercise of this power, may correct any
defect, omission or inconsistency in the Plan or in any


                                       5.
<PAGE>   6


Option Agreement, in a manner and to the extent it shall deem necessary or
expedient to make the Plan fully effective.

                  (3) To amend the Plan as provided in Section 11.

                  (4) Generally, to exercise such powers and to perform such
acts as the Board deems necessary or expedient to promote the best interests of
the Company.

         (c) The Board may delegate administration of the Plan to a committee
composed of not fewer than two (2) members (the "Committee"), all of the members
of which Committee shall be Disinterested Persons, if required under subsection
3(d). 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 (and references in this Plan to the Board shall
thereafter be to the Committee), subject, however, to such resolutions, not
inconsistent with the provisions of the Plan, as may be adopted from time to
time by the Board. The Board may abolish the Committee at any time and revest in
the Board the administration of the Plan. Additionally, prior to the date of the
first registration of an equity security of the Company under Section 12 of the
Exchange Act, and notwithstanding anything to the contrary contained herein, the
Board may delegate administration of the Plan to any person or persons and the
term "Committee" shall apply to any person or persons to whom such authority has
been delegated. Notwithstanding anything in this Section 3 to the contrary, the
Board or the Committee may delegate to a committee of one or more members of the
Board the authority to grant options to eligible persons who are not then
subject to Section 16 of the Securities Exchange Act of 1934, as amended (the
"Exchange Act").


                                       6.
<PAGE>   7


         (d) Any requirement that an administrator of the Plan be a
Disinterested Person shall not apply (i) prior to the date of the first
registration of an equity security of the Company under Section 12 of the
Exchange Act, or (ii) if the Board or the Committee expressly declares that such
requirement shall not apply. Any Disinterested Person shall otherwise comply
with the requirements of Rule 16b-3.

4.       SHARES SUBJECT TO THE PLAN.

         (a) Subject to the provisions of Section 10 relating to adjustments
upon changes in stock, the stock that may be sold pursuant to Options shall not
exceed in the aggregate Two Million Four Hundred Thousand (2,400,000) shares of
the Company's common stock. If any Option shall for any reason expire or
otherwise terminate without having been exercised in full, the stock not
purchased under such Option shall revert to and again become available for
issuance under the Plan.

         (b) The stock subject to the Plan may be unissued shares or reacquired
shares, bought on the market or otherwise.

5.       ELIGIBILITY.

         (a) Incentive Stock Options may be granted only to Employees.
Nonstatutory Stock Options may be granted only to Employees, Directors or
Consultants.

         (b) A Director shall in no event be eligible for the benefits of the
Plan unless at the time discretion is exercised in the selection of the Director
as a person to whom Options may be granted, or in the determination of the
number of shares which may be covered by Options granted to the Director: (i)
the Board has delegated its discretionary authority over the Plan to a Committee
which consists solely of Disinterested Persons; or (ii) the Plan otherwise
complies


                                       7.
<PAGE>   8


with the requirements of Rule 16b-3. The Board shall otherwise comply with the
requirements of Rule 16b-3. This subsection 5(b) shall not apply (i) prior to
the date of the first registration of an equity security of the Company under
Section 12 of the Exchange Act, or (ii) if the Board or Committee expressly
declares that it shall not apply.

         (c) No person shall be eligible for the grant of an Incentive Stock
Option if, at the time of grant, such person owns (or is deemed to own pursuant
to Section 424(d) of the Code) stock possessing more than ten percent (10%) of
the total combined voting power of all classes of stock of the Company or of any
of its Affiliates unless the exercise price of such Incentive Stock Option is at
least one hundred ten percent (110%) of the Fair Market Value of such stock at
the date of grant and the Incentive Stock Option is not exercisable after the
expiration of five (5) years from the date of grant.

6. OPTION PROVISIONS.

         Each Option shall be in such form and shall contain such terms and
conditions as the Board shall deem appropriate. The provisions of separate
Options need not be identical, but each Option shall include (through
incorporation of provisions hereof by reference in the Option or otherwise) the
substance of each of the following provisions:

         (a) TERM. No Option shall be exercisable after the expiration of ten
(10) years from the date it was granted.

         (b) PRICE. The exercise price of each Incentive Stock Option shall be
not less than one hundred percent (100%) of the Fair Market Value of the stock
subject to the Option on the date the Option is granted. The exercise price of
each Nonstatutory Stock Option shall be not


                                       8.
<PAGE>   9


less than eighty five percent (85%) of the Fair Market Value of the stock
subject to the Option on the date the Option is granted.

         (c) CONSIDERATION. The purchase price of stock acquired pursuant to an
Option shall be paid, to the extent permitted by applicable statutes and
regulations, either (i) in cash at the time the option is exercised, or (ii) at
the discretion of the Board or the Committee, either at the time of the grant or
exercise of the Option, (A) by delivery to the Company of other common stock of
the Company, (B) according to a deferred payment or other arrangement (which may
include, without limiting the generality of the foregoing, the use of other
common stock of the Company) with the person to whom the Option is granted or to
whom the Option is transferred pursuant to subsection 6(d), or (C) in any other
form of legal consideration that may be acceptable to the Board.

         In the case of any deferred payment arrangement, interest shall be
payable at least annually and shall be charged at the minimum rate of interest
necessary to avoid the treatment as interest, under any applicable provisions of
the Code, of any amounts other than amounts stated to be interest under the
deferred payment arrangement.

         (d) TRANSFERABILITY. An Incentive Stock Option shall not be
transferable except by will or by the laws of descent and distribution, and
shall be exercisable during the lifetime of the person to whom the Incentive
Stock Option is granted only by such person. A Nonstatutory Stock Option shall
not be transferable except by will or by the laws of descent and distribution or
pursuant to a qualified domestic relations order as defined by the Code or Title
I of the Employee Retirement Income Security Act, or the rules thereunder (a
"QDRO"), and shall be exercisable


                                       9.
<PAGE>   10


during the lifetime of the person to whom the Option is granted only by such
person or any transferee pursuant to a QDRO.

         (e) VESTING. The total number of shares of stock subject to an Option
may, but need not, be allotted in periodic installments (which may, but need
not, be equal) or pursuant to performance criteria or other factors. The Option
Agreement may provide that from time to time during each of such installment
periods, the Option may become exercisable ("vest") with respect to some or all
of the shares allotted to that period, and may be exercised with respect to some
or all of the shares allotted to such period and/or any prior period as to which
the Option became vested but was not fully exercised. During the remainder of
the term of the Option (if its term extends beyond the end of the installment
periods), the option may be exercised from time to time with respect to any
shares then remaining subject to the Option. The provisions of this subsection
6(e) are subject to any Option provisions governing the minimum number of shares
as to which an Option may be exercised.

         (f) SECURITIES LAW COMPLIANCE. The Company may require any Optionee, or
any person to whom an Option is transferred under subsection 6(d), as a
condition of exercising any such Option, (1) to give written assurances
satisfactory to the Company as to the Optionee's knowledge and experience in
financial and business matters and/or to employ a purchaser representative
reasonably satisfactory to the Company who is knowledgeable and experienced in
financial and business matters, and that he or she is capable of evaluating,
alone or together with the purchaser representative, the merits and risks of
exercising the Option; and (2) to give written assurances satisfactory to the
Company stating that such person is acquiring the stock subject to the Option
for such person's own account and not with any present intention of selling or


                                      10.
<PAGE>   11


otherwise distributing the stock. These requirements, and any assurances given
pursuant to such requirements, shall be inoperative if (i) the issuance of the
shares upon the exercise of the Option has been registered under a then
currently effective registration statement under the Securities Act of 1933, as
amended (the "Securities Act"), or (ii) as to any particular requirement, a
determination is made by counsel for the Company that such requirement need not
be met in the circumstances under the then applicable securities laws. The
Company may, upon advice of counsel to the Company, place legends on stock
certificates issued under the Plan as such counsel deems necessary or
appropriate in order to comply with applicable securities laws, including, but
not limited to, legends restricting the transfer of the stock.

         (g) TERMINATION OF EMPLOYMENT OR RELATIONSHIP AS DIRECTOR OR
CONSULTANT. In the event an Optionee's Continuous Status as an Employee,
Director or Consultant terminates (other than upon the Optionee's death or
Disability), the Optionee may exercise his or her Option (to the extent that the
Optionee was entitled to exercise it at the date of termination) but only within
such period of time ending on the earlier of (i) the date forty-five (45) days
after the termination of the Optionee's Continuous Status as an Employee,
Director or Consultant (or such longer or shorter period specified in the Option
Agreement), or (ii) the expiration of the term of the Option as set forth in the
Option Agreement. If, after termination, the Optionee does not exercise his or
her Option within the time specified in the Option Agreement, the Option shall
terminate, and the shares covered by such Option shall revert to and again
become available for issuance under the Plan.

         (h) DISABILITY OF OPTIONEE. In the event an Optionee's Continuous
Status as an Employee, Director or Consultant terminates as a result of the
Optionee's Disability, the

                                      11.
<PAGE>   12

Optionee may exercise his or her Option (to the extent that the Optionee was
entitled to exercise it at the date of termination), but only within such period
of time ending on the earlier of (i) the date twelve (12) months following such
termination (or such longer or shorter period specified in the Option
Agreement), or (ii) the expiration of the term of the Option as set forth in the
Option Agreement. If, at 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 and again become available for issuance
under the Plan. If, 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 and again become available for
issuance under the Plan.

         (i) DEATH OF OPTIONEE. In the event of the death of an Optionee during,
or within forty-five (45) days of the termination of, the Optionee's Continuous
Status as an Employee, Director or Consultant, the Option may be exercised (to
the extent the Optionee was entitled to exercise the Option at the date of
death) by the Optionee's estate or by a person who acquired the right to
exercise the Option by bequest or inheritance, but only within the period ending
on the earlier of (i) the date twelve (12) months following the date of death
(or such longer or shorter period specified in the Option Agreement), or (ii)
the expiration of the term of such Option as set forth in the Option Agreement.
If, at the time of death, the Optionee was not entitled to exercise his or her
entire Option, the shares covered by the unexercisable portion of the Option
shall revert to and again become available for issuance under the Plan. If,
after death, the Optionee's estate or a person who acquired 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


                                      12.
<PAGE>   13


shares covered by such Option shall revert to and again become available for
issuance under the Plan.

         (j) EARLY EXERCISE. The Option may, but need not, include a provision
whereby the Optionee may elect at any time while an Employee, Director or
Consultant to exercise the Option as to any part or all of the shares subject to
the Option prior to the full vesting of the Option. Any unvested shares so
purchased may be subject to a repurchase right in favor of the Company or to any
other restriction the Board determines to be appropriate.

         (k) WITHHOLDING. To the extent provided by the terms of an Option
Agreement, the Optionee may satisfy any federal, state or local tax withholding
obligation relating to the exercise of such Option by any of the following means
or by a combination of such means: (1) tendering a cash payment; (2) authorizing
the Company to withhold shares from the shares of the common stock otherwise
issuable to the participant as a result of the exercise of the Option; or (3)
delivering to the Company owned and unencumbered shares of the common stock of
the Company.

7. COVENANTS OF THE COMPANY.

         (a) During the terms of the Options, the Company shall keep available
at all times the number of shares of stock required to satisfy such Options.

         (b) The Company shall seek to obtain from each regulatory commission or
agency having jurisdiction over the Plan such authority as may be required to
issue and sell shares of stock upon exercise of the Options; provided, however,
that this undertaking shall not require the Company to register under the
Securities Act either the Plan, any Option or any stock issued or issuable
pursuant to any such Option. If, after reasonable efforts, the Company is unable
to


                                      13.
<PAGE>   14


obtain from any such regulatory commission or agency the authority which counsel
for the Company deems necessary for the lawful issuance and sale of stock under
the Plan, the Company shall be relieved from any liability for failure to issue
and sell stock upon exercise of such Options unless and until such authority is
obtained.

8. USE OF PROCEEDS FROM STOCK.

         Proceeds from the sale of stock pursuant to Options shall constitute
general funds of the Company.

9. MISCELLANEOUS.

         (a) The Board shall have the power to accelerate the time at which an
Option may first be exercised or the time during which an Option or any part
thereof will vest pursuant to subsection 6(e), notwithstanding the provisions in
the Option stating the time at which it may first be exercised or the time
during which it will vest.

         (b) Neither an Optionee nor any person to whom an Option is transferred
under subsection 6(d) shall be deemed to be the holder of, or to have any of the
rights of a holder with respect to, any shares subject to such Option unless and
until such person has satisfied all requirements for exercise of the Option
pursuant to its terms.

         (c) Nothing in the Plan or any instrument executed or Option granted
pursuant thereto shall confer upon any Employee, Director, Consultant or
Optionee any right to continue in the employ of the Company or any Affiliate (or
to continue acting as a Consultant) or shall affect the right of the Company or
any Affiliate to terminate the employment or relationship as a Consultant of any
Employee, Director, Consultant or Optionee with or without cause.


                                      14.
<PAGE>   15


         (d) To the extent that the aggregate Fair Market Value (determined at
the time of grant) of stock with respect to which Incentive Stock Options are
exercisable for the first time by any Optionee during any calendar year under
all plans of the Company and its Affiliates exceeds one hundred thousand dollars
($100,000), the Options or portions thereof which exceed such limit (according
to the order in which they were granted) shall be treated as Nonstatutory Stock
Options.

10. ADJUSTMENTS UPON CHANGES IN STOCK.

         (a) If any change is made in the stock subject to the Plan, or subject
to any Option (through merger, consolidation, reorganization, recapitalization,
stock dividend, dividend in property other than cash, stock split, liquidating
dividend, combination of shares, exchange of shares, change in corporate
structure or otherwise), the Plan and outstanding Options will be appropriately
adjusted in the class(es) and maximum number of shares subject to the Plan and
the class(es) and number of shares and price per share of stock subject to
outstanding Options.

         (b) In the event of: (1) a dissolution or liquidation of the Company;
(2) a merger or consolidation in which the Company is not the surviving
corporation; or (3) a reverse merger in which the Company is the surviving
corporation but the shares of the Company's common stock outstanding immediately
preceding the merger are converted by virtue of the merger into other property,
whether in the form of securities, cash or otherwise, then to the extent
permitted by applicable law the Board shall have the power and discretion to
prescribe the terms and conditions for the exercise of, or modification of, the
options granted hereunder. By way of illustration, and not by way of limitation,
the Board may provide for the complete or partial acceleration of the dates of
exercise of the Options, or may provide that such Options will be


                                      15.
<PAGE>   16


exchanged for or converted into options or rights to acquire securities of the
surviving or acquiring corporation, or may provide for a payment or distribution
in respect of outstanding Options (or the portion thereof that is currently
exercisable) in cancellation thereof. The Board or the Committee may provide
that Options granted hereunder must be exercised in connection with the closing
of such transaction, and that if not so exercised such Options or rights will
expire. Any such determinations by the Board may be made generally with respect
to all Optionees, or may be made on a case-by-case basis with respect to
particular Optionees. The provisions of this Section 10(b) shall not apply to
any transaction undertaken for the purpose of reincorporating the Company under
the laws of another jurisdiction, if such transaction does not materially affect
the beneficial ownership of the Company's capital stock.

11. AMENDMENT OF THE PLAN.

         (a) The Board at any time, and from time to time, may amend the Plan.
However, except as provided in Section 10 relating to adjustments upon changes
in stock, no amendment shall be effective unless approved by the stockholders of
the Company within twelve (12) months before or after the adoption of the
amendment, where the amendment will:

                  (1) Increase the number of shares reserved for Options under
the Plan;

                  (2) Modify the requirements as to eligibility for
participation in the Plan (to the extent such modification requires stockholder
approval in order for the Plan to satisfy the requirements of Section 422 of the
Code); or
                  (3) Modify the Plan in any other way if such modification
requires stockholder approval in order for the Plan to satisfy the requirements
of Section 422 of the Code or to comply with the requirements of Rule 16b-3.


                                      16.
<PAGE>   17


         (b) It is expressly contemplated that the Board may amend the Plan in
any respect the Board deems necessary or advisable to provide Optionees with the
maximum benefits provided or to be provided under the provisions of the Code and
the regulations promulgated thereunder relating to Incentive Stock Options
and/or to bring the Plan and/or Incentive Stock Options granted under it into
compliance therewith.

         (c) Rights and obligations under any Option granted before amendment of
the Plan shall not be altered or impaired by any amendment of the Plan unless
(i) the Company requests the consent of the person to whom the Option was
granted and (ii) such person consents in writing.

12. TERMINATION OR SUSPENSION OF THE PLAN.

         (a) The Board may suspend or terminate the Plan at any time. Unless
sooner terminated, the Plan shall terminate on September 12, 2003. No Options
may be granted under the Plan while the Plan is suspended or after it is
terminated.

         (b) Rights and obligations under any Option granted while the Plan is
in effect shall not be altered or impaired by suspension or termination of the
Plan, except with the consent of the person to whom the Option was granted.

13. EFFECTIVE DATE OF PLAN.

         The Plan shall become effective as determined by the Board, but no
Options granted under the Plan shall be exercised unless and until the Plan has
been approved by the stockholders of the Company.



                                      17.


<PAGE>   1
                                                                    EXHIBIT 99.6

                                  ANESTA CORP.

                 1993 NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN

                          ADOPTED ON DECEMBER 22, 1993
                  APPROVED BY STOCKHOLDERS ON JANUARY 14, 1994
                    AMENDED BY THE BOARD ON FEBRUARY 26, 1998
                    APPROVED BY STOCKHOLDERS ON JUNE 23, 1998
                      AMENDED BY THE BOARD ON JUNE 23, 1998
                      AMENDED BY THE BOARD ON APRIL 6, 1999


1.       PURPOSE

         (a) The purpose of the 1993 Non-Employee Directors' Stock Option Plan
(the "Plan") is to provide a means by which each director of Anesta Corp. (the
"Company") who is not otherwise an employee of the Company or of any Affiliate
of the Company (each such person being hereafter referred to as a "Non-Employee
Director") will be given an opportunity to purchase stock of the Company.

         (b) The word "Affiliate" as used in the Plan means any parent
corporation or subsidiary corporation of the Company as those terms are defined
in Sections 424(e) and (f), respectively, of the Internal Revenue Code of 1986,
as amended from time to time (the "Code").

         (c) The Company, by means of the Plan, seeks to retain the services of
persons now serving as Non-Employee Directors of the Company, to secure and
retain the services of persons capable of serving in such capacity, and to
provide incentives for such persons to exert maximum efforts for the success of
the Company.

2.       ADMINISTRATION

         (a) The Plan shall be administered by the Board of Directors of the
Company (the "Board") unless and until the Board delegates administration to a
committee, as provided in subparagraph 2(b).

         (b) The Board may delegate administration of the Plan to a committee
composed of not fewer than two (2) members of the Board (the "Committee"). 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, subject, however, to such resolutions, not inconsistent with the
provisions of the Plan, as may be adopted from time to time by the Board. The
Board may abolish the Committee at any time and revest in the Board the
administration of the Plan.


                                       1.
<PAGE>   2


3.       SHARES SUBJECT TO THE PLAN

         (a) Subject to the provisions of paragraph 10 relating to adjustments
upon changes in stock, the stock that may be sold pursuant to options granted
under the Plan shall not exceed in the aggregate three hundred fifty thousand
(350,000) shares of the Company's common stock. If any option granted under the
Plan shall for any reason expire or otherwise terminate without having been
exercised in full, the stock not purchased under such option shall again become
available for the Plan.

         (b) The stock subject to the Plan may be unissued shares or reacquired
shares, bought on the market or otherwise.

4.       ELIGIBILITY

         Options shall be granted only to Non-Employee Directors of the Company.

5.       NON-DISCRETIONARY GRANTS

         (a) Upon the effective date of the initial public offering of shares of
the Company's Common Stock (the "IPO Date"), each person who is then a
Non-Employee Director shall be granted an option to purchase ten thousand
(10,000) shares of common stock of the Company on the terms and conditions set
forth herein (the "Initial Option").

         (b) Each person who is, after the IPO Date and on or before June 23,
1998, elected for the first time to be a Non-Employee Director shall, upon the
date of his initial election to be a Non-Employee Director by the Board or
stockholders of the Company, be granted an option to purchase ten thousand
(10,000) shares of common stock of the Company on the terms and conditions set
forth herein. Each person who is, after June 23, 1998, elected for the first
time to be a Non-Employee Director shall, upon the date of his initial election
to be a Non-Employee Director by the Board or stockholders of the Company, be
granted an option to purchase fifteen thousand (15,000) shares of common stock
of the Company on the terms and conditions set forth herein.

         (c) On January 1 of each year, commencing with January 1, 1995 and
ending on January 1, 1997, each person who is then a Non-Employee Director and
has been a Non-Employee Director for at least three (3) months shall be granted
an option to purchase one thousand five hundred (1,500) shares of common stock
of the Company. In addition, each Non-Employee Director who received an option
grant hereunder on January 1, 1997 and who is reelected at the 1997 annual
meeting of the Company's stockholders shall, upon such reelection, be granted an
option to purchase three thousand five hundred (3,500) shares of Common Stock of
the Company. Furthermore, immediately following each annual meeting of the
Company's stockholders, commencing with the 1998 Annual Stockholders Meeting,
each person who is then a Non-Employee Director shall be granted an option to
purchase five thousand (5,000) shares of the Common Stock of the Company.
Collectively, the options granted pursuant to this


                                       2.
<PAGE>   3


subparagraph 5(c) are the "Annual Options," and all such Annual Options shall be
made on the terms and conditions set forth in this Plan.

         (d) Effective with respect to Board meetings occurring after June 23,
1998, each Director who attends a meeting of the Board of Directors in person or
by conference telephone shall be granted an option to purchase 400 shares of
Common Stock. Such options shall be granted as of the date of such meeting.

         (e) Each director who is serving as a chair of a committee of the Board
of Directors as of the date of each Stockholders Annual Meeting, commencing with
the Annual Meeting of Stockholders held on June 23, 1998, shall be granted an
option to purchase 2,000 shares of Common Stock. Such options shall be granted
as of the date of such annual meeting.

6.       OPTION PROVISIONS

         Each option shall contain the following terms and conditions:

         (a) The term of each option commences on the date it is granted and,
unless sooner terminated as set forth herein, expires on the date ("Expiration
Date") five (5) years from the date of grant. If the optionee's service as a
Non-Employee Director of the Company terminates for any reason or for no reason,
the option shall terminate on the earlier of the Expiration Date or the date
three (3) months following the date of termination of service; provided,
however, that if such termination of service is due to the optionee's death, the
option shall terminate on the earlier of the Expiration Date or six (6) months
following the date of the optionee's death. In any and all circumstances, an
option may be exercised following termination of the optionee's service as a
Non-Employee Director of the Company only as to that number of shares as to
which it was exercisable on the date of termination of such service under the
provisions of subparagraph 6(e).

         (b) Subject to subparagraph 4(b), the exercise price of each Initial
Option shall be equal to the price to the public of the stock in the Company's
initial public offering subject to such option. The exercise price of all other
options shall be equal to the fair market value of the stock subject to such
option at the close of the market on the day before the date such option is
granted.

         (c) Payment of the exercise price of each option is due in full in cash
upon any exercise when the number of shares being purchased upon such exercise
is less than 1,000 shares; but when the number of shares being purchased upon an
exercise is 1,000 or more shares, the optionee may elect to make payment of the
exercise price under one of the following alternatives:

                  (i) Payment of the exercise price per share in cash at the
time of exercise; or

                  (ii) Provided that at the time of the exercise the Company's
common stock is publicly traded and quoted regularly in the Wall Street Journal,
payment by delivery of shares of common stock of the Company already owned by
the optionee, held for the period required to avoid a charge to the Company's
reported earnings, and owned free and clear of any liens,


                                       3.
<PAGE>   4


claims, encumbrances or security interest, which common stock shall be valued at
fair market value on the date preceding the date of exercise; or

                  (iii) Payment by a combination of the methods of payment
specified in subparagraph 6(c)(i) and 6(c)(ii) above.

         Notwithstanding the foregoing, this option may be exercised pursuant to
a program developed under Regulation T as promulgated by the Federal Reserve
Board which results in the receipt of cash (or check) by the Company prior to
the issuance of shares of the Company's common stock.

         (d) Unless otherwise provided in an option, each option shall not be
transferable except by will or by the laws of descent and distribution, or
pursuant to a domestic relations order and shall be exercisable during the
lifetime of the person to whom the option is granted only by such person or by
his guardian or legal representative. Notwithstanding the foregoing, the
optionee may during his or her lifetime designate a person to receive and
exercise any of the options following the optionee's death.

         (e) The Annual Options shall become exercisable in equal annual
installments over a period of three (3) years from the date of grant, commencing
on the date one year after the date of grant of the Annual Options, provided
that the optionee has, during the entire period prior to such vesting date,
continuously served as a Non-Employee Director or as an employee of or
consultant to the Company or any Affiliate of the Company, whereupon such option
shall become fully exercisable in accordance with its terms with respect to that
portion of the shares represented by that installment. All other options shall
become exercisable in installments over a period of four years from the date of
grant at the rate of two thousand five hundred (2,500) shares in four (4) equal
annual installments commencing on the date one year after the date of grant of
such option, provided that the optionee has, during the entire period prior to
such vesting date, continuously served as a Non-Employee Director or as an
employee of or consultant to the Company or any Affiliate of the Company,
whereupon such option shall become fully exercisable in accordance with its
terms with respect to that portion of the shares represented by that
installment.

         (f) The Company may require any optionee, or any person to whom an
option is transferred under subparagraph 6(d), as a condition of exercising any
such option: (i) to give written assurances satisfactory to the Company as to
the optionee's knowledge and experience in financial and business matters; and
(ii) to give written assurances satisfactory to the Company stating that such
person is acquiring the stock subject to the option for such person's own
account and not with any present intention of selling or otherwise distributing
the stock. These requirements, and any assurances given pursuant to such
requirements, shall be inoperative if (i) the issuance of the shares upon the
exercise of the option has been registered under a then-currently-effective
registration statement under the Securities Act of 1933, as amended (the
"Securities Act"), or (ii), as to any particular requirement, a determination is
made by counsel for the Company that such requirement need not be met in the
circumstances under the then-applicable securities laws.


                                       4.
<PAGE>   5


         (g) Notwithstanding anything to the contrary contained herein, an
option may not be exercised unless the shares issuable upon exercise of such
option are then registered under the Securities Act or, if such shares are not
then so registered, the Company has determined that such exercise and issuance
would be exempt from the registration requirements of the Securities Act.

7.       COVENANTS OF THE COMPANY

         (a) During the terms of the options granted under the Plan, the Company
shall keep available at all times the number of shares of stock required to
satisfy such options.

         (b) The Company shall seek to obtain from each regulatory commission or
agency having jurisdiction over the Plan such authority as may be required to
issue and sell shares of stock upon exercise of the options granted under the
Plan; provided, however, that this undertaking shall not require the Company to
register under the Securities Act either the Plan, any option granted under the
Plan, or any stock issued or issuable pursuant to any such option. If the
Company is unable to obtain from any such regulatory commission or agency the
authority which counsel for the Company deems necessary for the lawful issuance
and sale of stock under the Plan, the Company shall be relieved from any
liability for failure to issue and sell stock upon exercise of such options.

8.       USE OF PROCEEDS FROM STOCK

         Proceeds from the sale of stock pursuant to options granted under the
Plan shall constitute general funds of the Company.

9.       MISCELLANEOUS

         (a) Neither an optionee nor any person to whom an option is transferred
under subparagraph 6(d) shall be deemed to be the holder of, or to have any of
the rights of a holder with respect to, any shares subject to such option unless
and until such person has satisfied all requirements for exercise of the option
pursuant to its terms.

         (b) Nothing in the Plan or in any instrument executed pursuant thereto
shall confer upon any Non-Employee Director any right to continue in the service
of the Company or any Affiliate or shall affect any right of the Company, its
Board or stockholders or any Affiliate to terminate the service of any
Non-Employee Director with or without cause.

         (c) No Non-Employee Director, individually or as a member of a group,
and no beneficiary or other person claiming under or through him, shall have any
right, title or interest in or to any option reserved for the purposes of the
Plan except as to such shares of common stock, if any, as shall have been
reserved for him pursuant to an option granted to him.

         (d) In connection with each option made pursuant to the Plan, it shall
be a condition precedent to the Company's obligation to issue or transfer shares
to a Non-Employee Director, or to evidence the removal of any restrictions on
transfer, that such Non-Employee Director make


                                       5.
<PAGE>   6


arrangements satisfactory to the Company to insure that the amount of any
federal or other withholding tax required to be withheld with respect to such
sale or transfer, or such removal or lapse, is made available to the Company for
timely payment of such tax.

10.      ADJUSTMENTS UPON CHANGES IN STOCK

         (a) If any change is made in the stock subject to the Plan, or subject
to any option granted under the Plan (through merger, consolidation,
reorganization, recapitalization, stock dividend, dividend in property other
than cash, stock split, liquidating dividend, combination of shares, exchange of
shares, change in corporate structure or otherwise), the Plan and outstanding
options will be appropriately adjusted in the class(es) and maximum number of
shares subject to the Plan and the class(es) and number of shares and price per
share of stock subject to outstanding options.

         (b) For purpose of this Section 10(b), "Change of Control" means (1) a
dissolution or liquidation of the Company; (2) a merger or consolidation in
which the Company is not the surviving corporation; (3) a reverse merger in
which the Company is the surviving corporation but the shares of the Company's
common stock outstanding immediately preceding the merger are converted by
virtue of the merger into other property, whether in the form of securities,
cash or otherwise; (4) if any person or group (as defined in Section 13(d)(3) of
the Securities and Exchange Act of 1934, as amended, and the regulations
promulgated thereunder) acquires voting securities representing 50% or more of
the voting power of the Company's outstanding voting securities; or (5) if any
person or group acquires voting securities representing 30% or more of the
voting power of the Company's outstanding voting securities and the Board of
Directors declares that a Change of Control has occurred. Upon the occurrence of
a Change of Control prior to June 1, 1999, any surviving corporation shall
assume any options outstanding under the Plan or, if the Company is the
surviving corporation, such options shall continue in full force and effect.
Upon the occurrence of a Change of Control on or after June 1, 1999, any
unvested options granted under this Plan that are then outstanding shall
accelerate and immediately become vested and exercisable.

11.      AMENDMENT OF THE PLAN

         (a) The Board at any time, and from time to time, may amend the Plan.
Except as provided in paragraph 10 relating to adjustments upon changes in
stock, no amendment shall be effective unless approved by the stockholders of
the Company to the extent such stockholder approval is required by any Nasdaq or
securities exchange listing requirements.

         (b) Rights and obligations under any option granted before any
amendment of the Plan shall not be altered or impaired by such amendment unless
(i) the Company requests the consent of the person to whom the option was
granted and (ii) such person consents in writing.


                                       6.
<PAGE>   7


12.      TERMINATION OR SUSPENSION OF THE PLAN

         (a) The Board may suspend or terminate the Plan at any time. Unless
sooner terminated, the Plan shall terminate on December 22, 2003. No options may
be granted under the Plan while the Plan is suspended or after it is terminated.

         (b) Rights and obligations under any option granted while the Plan is
in effect shall not be altered or impaired by suspension or termination of the
Plan, except with the consent of the person to whom the option was granted.

         (c) The Plan shall terminate upon the occurrence of any of the events
described in Section 10(b) above.

13.      EFFECTIVE DATE OF PLAN; CONDITIONS OF EXERCISE

         (a) The Plan shall become effective upon adoption by the Board of
Directors, subject to the condition subsequent that the Plan is approved by the
stockholders of the Company.

         (b) No option granted under the Plan shall be exercised or exercisable
unless and until the condition of subparagraph 13(a) above has been met.



                                       7.



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