Document:

EXHIBIT 4.2

                                    ATNG INC.
       NON-EMPLOYEE DIRECTORS AND CONSULTANTS RETAINER STOCK PLAN FOR THE
                                    YEAR 2004

     1.   Introduction.  This Plan shall be known as the "ATNG Inc. Non-Employee
          ------------
Directors  and  Consultants  Retainer  Stock  Plan  for  the  Year 2004," and is
hereinafter  referred to as the "Plan."  The purposes of this Plan are to enable
ATNG Inc., a Nevada corporation (the "Company"), to promote the interests of the
Company  and its stockholders by attracting and retaining non-employee Directors
and  Consultants  capable of furthering the future success of the Company and by
aligning  their  economic  interests  more  closely  with those of the Company's
stockholders,  by  paying  their  retainer  or fees in the form of shares of the
Company's  common  stock,  par  value  $0.0001  per  share (the "Common Stock").

     2.   Definitions.  The  following  terms  shall have the meanings set forth
          -----------
below:

     "Board" means the Board of Directors of the Company.

     "Change of Control" has the meaning set forth in Paragraph 12(d) hereof.

     "Code"  means  the Internal Revenue Code of 1986, as amended, and the rules
and  regulations  thereunder. References to any provision of the Code or rule or
regulation  thereunder  shall  be  deemed  to  include  any amended or successor
provision,  rule  or  regulation.

     "Committee"  means  the committee that administers this Plan, as more fully
defined  in  Paragraph  13  hereof.

     "Common Stock" has the meaning set forth in Paragraph 1 hereof.

     "Company" has the meaning set forth in Paragraph 1 hereof.

     "Deferral Election" has the meaning set forth in Paragraph 6 hereof.

     "Deferred  Stock  Account"  means  a  bookkeeping account maintained by the
Company  for a Participant representing the Participant's interest in the shares
credited  to  such  Deferred  Stock  Account  pursuant  to  Paragraph  7 hereof.

     "Delivery Date" has the meaning set forth in Paragraph 6 hereof.

     "Director" means an individual who is a member of the Board of Directors of
the  Company.

     "Dividend  Equivalent"  for  a given dividend or other distribution means a
number  of  shares  of  the  Common  Stock having a Fair Market Value, as of the
record date for such dividend or distribution, equal to the amount of cash, plus
the  Fair  Market  Value  on  the  date of distribution of any property, that is
distributed  with  respect  to  one  share  of the Common Stock pursuant to such
dividend  or  distribution;  such  Fair  Market  Value  to  be determined by the
Committee  in  good  faith.

     "Effective Date" has the meaning set forth in Paragraph 3 hereof.

     "Exchange Act" has the meaning set forth in Paragraph 12(d) hereof.

     "Fair  Market Value" means the mean between the highest and lowest reported
sales  prices  of the Common Stock on the New York Stock Exchange Composite Tape
or, if not listed on such exchange, on any other national securities exchange on
which  the  Common  Stock is listed or on The Nasdaq Stock Market, or, if not so
listed  on  any

                                        1
<PAGE>
other  national securities exchange or The Nasdaq Stock Market, then the average
of  the  bid  price of the Common Stock during the last five trading days on the
OTC  Bulletin Board immediately preceding the last trading day prior to the date
with  respect to which the Fair Market Value is to be determined.  If the Common
Stock  is  not  then  publicly  traded, then the Fair Market Value of the Common
Stock shall be the book value of the Company per share as determined on the last
day  of March, June, September, or December in any year closest to the date when
the  determination  is  to  be  made.  For the purpose of determining book value
hereunder,  book  value  shall be determined by adding as of the applicable date
called  for  herein  the capital, surplus, and undivided profits of the Company,
and after having deducted any reserves theretofore established; the sum of these
items  shall  be divided by the number of shares of the Common Stock outstanding
as  of  said date, and the quotient thus obtained shall represent the book value
of  each  share  of  the  Common  Stock  of  the  Company.

     "Participant" has the meaning set forth in Paragraph 4 hereof.

     "Payment  Time"  means  the  time  when  a  Stock  Retainer is payable to a
Participant  pursuant to Paragraph 5 hereof (without regard to the effect of any
Deferral  Election).

     "Stock Retainer" has the meaning set forth in Paragraph 5 hereof.

     "Third Anniversary" has the meaning set forth in Paragraph 6 hereof.

     3.   Effective  Date  of  the  Plan.  This  Plan  was  adopted by the Board
          ------------------------------
effective  January  23,  2004  (the  "Effective  Date").

     4.   Eligibility.  Each  individual  who is a Director or Consultant on the
          -----------
Effective  Date  and  each  individual  who  becomes  a  Director  or Consultant
thereafter  during  the  term  of  this  Plan,  shall  be  a  participant  (the
"Participant")  in this Plan, in each case during such period as such individual
remains a Director or Consultant and is not an employee of the Company or any of
its  subsidiaries.  Each  credit  of shares of the Common Stock pursuant to this
Plan shall be evidenced by a written agreement duly executed and delivered by or
on  behalf of the Company and a Participant, if such an agreement is required by
the  Company  to  assure  compliance  with  all applicable laws and regulations.

     5.   Grants  of  Shares.  Commencing  on  the Effective Date, the amount of
          ------------------
compensation  for service to directors or consultants shall be payable in shares
of  the  Common Stock (the "Stock Retainer") pursuant to this Plan at the deemed
issuance  price  of  $0.015  per  Share.

     6.   Deferral Option.  From and after the Effective Date, a Participant may
          ---------------
make an election (a "Deferral Election") on an annual basis to defer delivery of
the Stock Retainer specifying which one of the following ways the Stock Retainer
is to be delivered (a) on the date which is three years after the Effective Date
for  which  it was originally payable (the "Third Anniversary"), (b) on the date
upon  which the Participant ceases to be a Director or Consultant for any reason
(the  "Departure  Date")  or (c) in five equal annual installments commencing on
the  Departure  Date  (the  "Third  Anniversary" and "Departure Date" each being
referred  to  herein as a "Delivery Date").  Such Deferral Election shall remain
in  effect  for each Subsequent Year unless changed, provided that, any Deferral
Election  with  respect  to  a  particular Year may not be changed less than six
months  prior to the beginning of such Year, and provided, further, that no more
than  one  Deferral  Election  or  change  thereof  may  be  made  in  any Year.

     Any Deferral Election and any change or revocation thereof shall be made by
delivering  written  notice  thereof  to  the Committee no later than six months
prior to the beginning of the Year in which it is to be effected; provided that,
with  respect to the Year beginning on the Effective Date, any Deferral Election
or  revocation  thereof must be delivered no later than the close of business on
the  30th  day  after  the  Effective  Date.

     7.   Deferred  Stock Accounts.  The Company shall maintain a Deferred Stock
          ------------------------
Account  for  each  Participant  who makes a Deferral Election to which shall be
credited,  as of the applicable Payment Time, the number of shares of the Common
Stock  payable  pursuant  to  the  Stock Retainer to which the Deferral Election
relates.  So  long  as  any amounts in such Deferred Stock Account have not been
delivered  to  the  Participant  under

                                        2
<PAGE>
Paragraph  8  hereof,  each  Deferred  Stock Account shall be credited as of the
payment  date  for  any dividend paid or other distribution made with respect to
the  Common  Stock, with a number of shares of the Common Stock equal to (a) the
number of shares of the Common Stock shown in such Deferred Stock Account on the
record  date  for  such  dividend or distribution multiplied by (b) the Dividend
Equivalent  for  such  dividend  or  distribution.

     8.   Delivery  of  Shares.
          --------------------

     (a)  The  shares  of  the  Common  Stock  in a Participant's Deferred Stock
Account  with  respect  to  any Stock Retainer for which a Deferral Election has
been  made (together with dividends attributable to such shares credited to such
Deferred  Stock  Account) shall be delivered in accordance with this Paragraph 8
as  soon as practicable after the applicable Delivery Date.  Except with respect
to  a  Deferral  Election  pursuant  to  Paragraph  6 hereof, or other agreement
between  the parties, such shares shall be delivered at one time; provided that,
if  the  number  of shares so delivered includes a fractional share, such number
shall  be rounded to the nearest whole number of shares.  If the Participant has
in  effect  a Deferral Election pursuant to Paragraph 6 hereof, then such shares
shall  be  delivered  in five equal annual installments (together with dividends
attributable  to  such shares credited to such Deferred Stock Account), with the
first  such installment being delivered on the first anniversary of the Delivery
Date;  provided  that,  if  in  order  to equalize such installments, fractional
shares  would  have  to  be  delivered,  such  installments shall be adjusted by
rounding  to  the  nearest  whole share.  If any such shares are to be delivered
after  the  Participant  has  died  or become legally incompetent, they shall be
delivered  to the Participant's estate or legal guardian, as the case may be, in
accordance  with  the  foregoing;  provided that, if the Participant dies with a
Deferral  Election pursuant to Paragraph 6 hereof in effect, the Committee shall
deliver  all  remaining  undelivered  shares  to  the  Participant's  estate
immediately.  References  to a Participant in this Plan shall be deemed to refer
to the Participant's estate or legal guardian, where appropriate.

     (b)  The  Company may, but shall not be required to, create a grantor trust
or  utilize  an existing grantor trust (in either case, "Trust") to assist it in
accumulating  the  shares  of the Common Stock needed to fulfill its obligations
under this Paragraph 8.  However, Participants shall have no beneficial or other
interest  in  the Trust and the assets thereof, and their rights under this Plan
shall  be  as  general  creditors of the Company, unaffected by the existence or
nonexistence  of  the  Trust,  except  that  deliveries  of  Stock  Retainers to
Participants  from  the  Trust  shall,  to  the  extent  thereof,  be treated as
satisfying the Company's obligations under this Paragraph 8.

     9.   Share  Certificates;  Voting  and  Other Rights.  The certificates for
          -----------------------------------------------
shares  delivered to a Participant pursuant to Paragraph 8 above shall be issued
in the name of the Participant, and from and after the date of such issuance the
Participant shall be entitled to all rights of a stockholder with respect to the
Common Stock for all such shares issued in his name, including the right to vote
the  shares,  and  the  Participant  shall  receive  all  dividends  and  other
distributions  paid  or  made  with  respect  thereto.

     10.  General  Restrictions.
          ---------------------

          (a)  Notwithstanding  any  other  provision of this Plan or agreements
made pursuant thereto, the Company shall not be required to issue or deliver any
certificate or certificates for shares of the Common Stock under this Plan prior
to  fulfillment  of  all  of  the  following  conditions:

               (i)  Listing  or  approval  for  listing  upon official notice of
issuance  of  such  shares  on  the New York Stock Exchange, Inc., or such other
securities  exchange  as  may  at  the  time  be  a market for the Common Stock;

               (ii) Any registration or other qualification of such shares under
any state or federal law or regulation, or the maintaining in effect of any such
registration  or  other qualification which the Committee shall, upon the advice
of  counsel,  deem  necessary  or  advisable;  and

               (iii) Obtaining  any  other consent, approval, or permit from any
state  or federal governmental agency which the Committee shall, after receiving
the  advice  of  counsel,  determine  to  be  necessary  or  advisable.

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<PAGE>
          (b)  Nothing  contained  in  this  Plan shall prevent the Company from
adopting  other  or  additional  compensation arrangements for the Participants.

     11.  Shares  Available.  Subject  to Paragraph 12 below, the maximum number
          -----------------
of  shares  of  the  Common  Stock  which  may in the aggregate be paid as Stock
Retainers  pursuant  to  this  Plan  is  20,000,000.  Shares of the Common Stock
issuable  under  this  Plan  may be taken from treasury shares of the Company or
purchased  on the open market.  In the event that any outstanding Stock Retainer
under  this  Plan  for any reason expires or is terminated, the shares of Common
Stock  allocable  to  the  unexercised  portion  of  the Stock Retainer shall be
available for issuance under the ATNG Inc. Employee Stock Incentive Plan for the
Year  2004.

     12.  Adjustments;  Change  of  Control.
          ---------------------------------

          (a)  In  the  event  that there is, at any time after the Board adopts
this  Plan,  any  change  in  corporate  capitalization,  such as a stock split,
combination  of  shares,  exchange  of  shares,  warrants  or rights offering to
purchase  the  Common  Stock  at  a  price  below  its  Fair  Market  Value,
reclassification,  or  recapitalization, or a corporate transaction, such as any
merger,  consolidation,  separation,  including  a  spin-off, stock dividend, or
other  extraordinary  distribution  of  stock  or  property  of the Company, any
reorganization  (whether  or not such reorganization comes within the definition
of  such term in Section 368 of the Code) or any partial or complete liquidation
of  the Company (each of the foregoing a "Transaction"), in each case other than
any  such  Transaction which constitutes a Change of Control (as defined below),
(i)  the  Deferred  Stock Accounts shall be credited with the amount and kind of
shares  or  other  property  which  would  have been received by a holder of the
number  of  shares  of  the Common Stock held in such Deferred Stock Account had
such  shares of the Common Stock been outstanding as of the effectiveness of any
such  Transaction,  (ii) the number and kind of shares or other property subject
to  this  Plan  shall  likewise  be  appropriately  adjusted  to  reflect  the
effectiveness  of  any  such  Transaction,  and  (iii)  the  Committee  shall
appropriately  adjust  any  other  relevant provisions of this Plan and any such
modification  by  the  Committee shall be binding and conclusive on all persons.

          (b)  If  the shares of the Common Stock credited to the Deferred Stock
Accounts  are  converted  pursuant  to  Paragraph  12(a)  into  another  form of
property,  references  in  this  Plan to the Common Stock shall be deemed, where
appropriate,  to  refer  to  such  other  form  of  property,  with  such  other
modifications as may be required for this Plan to operate in accordance with its
purposes.  Without  limiting  the  generality  of  the  foregoing, references to
delivery of certificates for shares of the Common Stock shall be deemed to refer
to delivery of cash and the incidents of ownership of any other property held in
the  Deferred  Stock  Accounts.

          (c)  In lieu of the adjustment contemplated by Paragraph 12(a), in the
event  of  a  Change  of  Control,  the following shall occur on the date of the
Change  of Control (i) the shares of the Common Stock held in each Participant's
Deferred  Stock  Account  shall be deemed to be issued and outstanding as of the
Change  of Control; (ii) the Company shall forthwith deliver to each Participant
who  has  a  Deferred Stock Account all of the shares of the Common Stock or any
other property held in such Participant's Deferred Stock Account; and (iii) this
Plan  shall  be  terminated.

          (d)  For  purposes  of  this Plan, Change of Control shall mean any of
the  following  events:

               (i)  The  acquisition  by any individual, entity or group (within
the  meaning  of  Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of
1934,  as  amended  (the  "Exchange  Act")) (a "Person") of beneficial ownership
(within  the  meaning  of  Rule  13d-3 promulgated under the Exchange Act) of 20
percent or more of either (1) the then outstanding shares of the Common Stock of
the Company (the "Outstanding Company Common Stock"), or (2) the combined voting
power  of  then  outstanding  voting  securities of the Company entitled to vote
generally  in  the  election  of  directors  (the  "Outstanding  Company  Voting
Securities");  provided,  however,  that  the  following  acquisitions shall not
constitute  a  Change  of  Control (A) any acquisition directly from the Company
(excluding  an  acquisition  by virtue of the exercise of a conversion privilege
unless  the  security  being  so converted was itself acquired directly from the
Company),  (B)  any  acquisition  by  the  Company,  (C)  any acquisition by any
employee  benefit plan (or related trust) sponsored or maintained by the Company
or  any  corporation  controlled  by  the  Company or (D) any acquisition by any
corporation  pursuant  to  a  reorganization,

                                        4
<PAGE>
merger  or  consolidation,  if,  following  such  reorganization,  merger  or
consolidation, the conditions described in clauses (A), (B) and (C) of paragraph
(iii)  of  this  Paragraph  12(d)  are  satisfied;  or

               (ii) Individuals who, as of the date hereof, constitute the Board
of  the  Company (as of the date hereof, "Incumbent Board") cease for any reason
to  constitute  at  least  a  majority of the Board; provided, however, that any
individual  becoming a director subsequent to the date hereof whose election, or
nomination for election by the Company's stockholders, was approved by a vote of
at  least  a majority of the directors then comprising the Incumbent Board shall
be  considered  as  though such individual were a member of the Incumbent Board,
but excluding, for this purpose, any such individual whose initial assumption of
office occurs as a result of either an actual or threatened election contest (as
such  terms  are  used  in  Rule  14a-11 of Regulation 14A promulgated under the
Exchange  Act) or other actual or threatened solicitation of proxies or consents
by  or  on  behalf  of  a  Person  other  than  the  Board;  or

               (iii) Approval  by  the  stockholders  of  the  Company  of  a
reorganization,  merger,  binding  share  exchange  or  consolidation,  unless,
following  such  reorganization, merger, binding share exchange or consolidation
(A)  more  than  60  percent of, respectively, then outstanding shares of common
stock  of  the  corporation  resulting from such reorganization, merger, binding
share  exchange  or  consolidation  and  the  combined  voting  power  of  then
outstanding  voting securities of such corporation entitled to vote generally in
the election of directors is then beneficially owned, directly or indirectly, by
all or substantially all of the individuals and entities who were the beneficial
owners,  respectively,  of  the Outstanding Company Common Stock and Outstanding
Company  Voting  Securities  immediately  prior  to such reorganization, merger,
binding share exchange or consolidation in substantially the same proportions as
their ownership, immediately prior to such reorganization, merger, binding share
exchange  or  consolidation,  of  the  Outstanding  Company  Common  Stock  and
Outstanding  Company  Voting  Securities,  as  the  case  may  be, (B) no Person
(excluding  the  Company,  any  employee  benefit plan (or related trust) of the
Company  or such corporation resulting from such reorganization, merger, binding
share  exchange or consolidation and any Person beneficially owning, immediately
prior  to  such reorganization, merger, binding share exchange or consolidation,
directly  or  indirectly,  20  percent or more of the Outstanding Company Common
Stock or Outstanding Company Voting Securities, as the case may be) beneficially
owns,  directly  or  indirectly,  20  percent  or  more  of,  respectively, then
outstanding  shares  of  common  stock  of  the  corporation resulting from such
reorganization,  merger, binding share exchange or consolidation or the combined
voting  power of then outstanding voting securities of such corporation entitled
to  vote  generally in the election of directors, and (C) at least a majority of
the  members  of  the  board of directors of the corporation resulting from such
reorganization,  merger, binding share exchange or consolidation were members of
the  Incumbent  Board  at  the  time  of  the execution of the initial agreement
providing  for  such  reorganization,  merger,  binding  share  exchange  or
consolidation;  or

               (iv) Approval  by  the  stockholders  of  the  Company  of  (1) a
complete  liquidation  or  dissolution  of the Company, or (2) the sale or other
disposition of all or substantially all of the assets of the Company, other than
to  a  corporation,  with  respect  to  which  following  such  sale  or  other
disposition,  (A) more than 60 percent of, respectively, then outstanding shares
of  common  stock  of  such  corporation  and  the combined voting power of then
outstanding  voting securities of such corporation entitled to vote generally in
the election of directors is then beneficially owned, directly or indirectly, by
all or substantially all of the individuals and entities who were the beneficial
owners,  respectively,  of  the Outstanding Company Common Stock and Outstanding
Company Voting Securities immediately prior to such sale or other disposition in
substantially  the same proportion as their ownership, immediately prior to such
sale  or  other  disposition,  of  the  Outstanding  Company  Common  Stock  and
Outstanding  Company  Voting  Securities,  as  the  case  may  be, (B) no Person
(excluding  the  Company and any employee benefit plan (or related trust) of the
Company  or  such  corporation  and  any Person beneficially owning, immediately
prior  to  such sale or other disposition, directly or indirectly, 20 percent or
more  of  the  Outstanding  Company  Common  Stock or Outstanding Company Voting
Securities,  as  the  case may be) beneficially owns, directly or indirectly, 20
percent  or  more  of,  respectively, then outstanding shares of common stock of
such  corporation  and  the  combined  voting  power  of then outstanding voting
securities  of  such  corporation  entitled to vote generally in the election of
directors,  and (C) at least a majority of the members of the board of directors
of  such  corporation  were  members  of  the Incumbent Board at the time of the
execution  of  the  initial  agreement or action of the Board providing for such
sale  or  other  disposition  of  assets  of  the  Company.

     13.  Administration;  Amendment  and  Termination.
          --------------------------------------------

                                        5
<PAGE>
          (a)  This  Plan shall be administered by a committee consisting of two
members  who  shall  be the current directors of the Company or senior executive
officers or other directors who are not Participants as may be designated by the
Chief  Executive  Officer  (the "Committee"), which shall have full authority to
construe  and  interpret  this  Plan,  to establish, amend and rescind rules and
regulations  relating  to  this  Plan, and to take all such actions and make all
such  determinations  in  connection  with this Plan as it may deem necessary or
desirable.

          (b)  The  Board  may  from  time  to time make such amendments to this
Plan,  including  to  preserve or come within any exemption from liability under
Section  16(b)  of  the  Exchange  Act,  as  it  may deem proper and in the best
interest  of the Company without further approval of the Company's stockholders,
provided  that,  to  the  extent  required  under  Nevada  law  or  to  qualify
transactions  under  this  Plan for exemption under Rule 16b-3 promulgated under
the  Exchange  Act,  no  amendment to this Plan shall be adopted without further
approval  of  the  Company's stockholders and, provided, further, that if and to
the  extent  required  for this Plan to comply with Rule 16b-3 promulgated under
the  Exchange Act, no amendment to this Plan shall be made more than once in any
six  month period that would change the amount, price or timing of the grants of
the  Common  Stock hereunder other than to comport with changes in the Code, the
Employee  Retirement Income Security Act of 1974, as amended, or the regulations
thereunder.  The  Board  may  terminate  this  Plan  at  any time by a vote of a
majority  of  the  members  thereof.

     14.  Restrictions  on  Transfer.  Each Stock Option granted under this Plan
          --------------------------
shall  be transferable only by will or the laws of descent and distribution.  No
interest  of  any  Employee  under  this  Plan  shall  be subject to attachment,
execution, garnishment, sequestration, the laws of bankruptcy or any other legal
or  equitable  process.  Each  Stock  Option  granted  under  this Plan shall be
exercisable  during  an  Employee's  lifetime  only  by  the  Employee or by the
Employee's  legal  representative.

     15.  Term  of  Plan.  No shares of the Common Stock shall be issued, unless
          --------------
and  until  the  Directors  of the Company have approved this Plan and all other
legal  requirements have been met.  This Plan was adopted by the Board effective
January 23, 2004, and shall expire on January 23, 2014.

     16.  Governing  Law.  This  Plan  and all actions taken thereunder shall be
          --------------
governed by, and construed in accordance with, the laws of the State of Nevada.

     17.  Information to Shareholders.  The Company shall furnish to each of its
          ---------------------------
stockholders financial statements of the Company at least annually.

     18.  Miscellaneous.
          -------------

          (a)  Nothing  in this Plan shall be deemed to create any obligation on
the  part  of the Board to nominate any Director for reelection by the Company's
stockholders  or to limit the rights of the stockholders to remove any Director.

          (b)  The  Company  shall  have  the  right  to  require,  prior to the
issuance  or  delivery  of any shares of the Common Stock pursuant to this Plan,
that  a  Participant  make  arrangements  satisfactory  to the Committee for the
withholding  of  any  taxes  required  by law to be withheld with respect to the
issuance  or  delivery  of  such  shares,  including, without limitation, by the
withholding  of  shares  that  would  otherwise  be  so  issued or delivered, by
withholding  from any other payment due to the Participant, or by a cash payment
to  the  Company  by  the  Participant.

                                        6
<PAGE>
     IN WITNESS WHEREOF, this Plan has been executed effective as of January 23,
2004.

                                   ATNG INC.

                                   By /s/Robert Simpson
                                      ------------------------------------------
                                      Robert Simpson, President

                                        7
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Exhibit 4.2    
    

	COMMON STOCK	 	COMMON STOCK
	

 
	
CGT	
 	

 
	
INCORPORATED UNDER THE LAWS

OF THE STATE OF DELAWARE	
 	

SEE REVERSE FOR

CERTAIN DEFINITIONS
	

 	
 	

CUSIP 21872P 10 5
	
This Certifies that	
 	

 
	

is the record holder of
 	
 	

 

FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK, $.001 PAR VALUE, OF 

CORGENTECH INC.  

transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon the surrender of this certificate properly
endorsed. This certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar.

WITNESS
the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. 

Dated:

	/s/ Matthew B. Hemington

SECRETARY	 	CORGENTECH INC.

CORPORATE SEAL

1999 DELAWARE	 	/s/ John P. McLaughlin

PRESIDENT AND CHIEF EXECUTIVE OFFICER

COUNTERSIGNED AND REGISTERED 

          MELLON INVESTOR SERVICES LLC

                   TRANSFER
AGENT AND REGISTRAR 

                             AUTHORIZED SIGNATURE 

CORGENTECH INC.  

The Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional, or
other special rights of each class of stock or series thereof and the qualifications, limitations or restrictions of such preferences and/or rights. Such requests shall be made to the Corporation's
Secretary at the principal office of the Corporation. 

        The
following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or
regulations: 

	 	 	TEN COM-	 	as tenants in common
	

 	
 	

TEN ENT-	
 	

as tenants by the entireties
	

 	
 	

JT TEN-	
 	

as joint tenants with

right of survivorship and

not as tenants in common

	UNIF GIFT MIN ACT-	 	    
	 	Custodian	 	    

	 	 	(Cust)	 	 	 	(Minor)
	

 	
 	

under Uniform Gifts to Minors

	 	 	Act	 	    

	 	 	 	 	(State)

	UNIF TRF MIN ACT-	 	    
	 	Custodian	 	(until age	 	    
	 	)
	 	 	(Cust)	 	 	 	 	 	 	 	 
	

 	
 	

    
	
 	

under Uniform Transfers to Minors	
 	

 
	 	 	(Minor)

	 	 	 	 	 	 	 	 

	 	 	Act	 	    

	 	 	 	 	(State)

Additional
abbreviations may also be used though not in the above list. 

	     FOR VALUE RECEIVED,	    
	hereby sell, assign and transfer(s) unto
	

	PLEASE INSERT SOCIAL SECURITY OR

OTHER IDENTIFYING NUMBER OF ASSIGNEE	 	 
	
    
	 	 
	

 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE OF ASSIGNEE)
	    

	    

	
	Shares
	  

of the Common Stock represented by the within Certificate, and do(es) hereby irrevocably constitute and appoint
	

	

Attorney
	  

to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises.

	Dated	 	    
	 	X	 	    

	

 	
 	

 	
 	

X	
 	

    

	 	 	 	 	 	 	NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(s) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.
	SIGNATURE(S) GUARANTEED:

	 	 	 	 

	By	 	    
 THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION, (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN
AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15.

	 	 	 	 

QuickLinks

Exhibit 4.2

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00060-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00060-of-00352.parquet"}]]