MAYFIELD VII
SC 13G/A, 1998-02-17
Previous: KLS ENVIRO RESOURCES INC, 10QSB, 1998-02-17
Next: MAYFIELD VII, SC 13G/A, 1998-02-17



<PAGE>   1

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                                       
                                ---------------

                                 SCHEDULE 13G
                                 (Rule 13d-102)
                                      
                                       
             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
             TO RULES 13d-1(b) AND (c) AND AMENDMENTS THERETO FILED
                              PURSUANT TO 13d-2(b)
                              (Amendment No. 2)(1)
                                            
                                       
                                       
                               
                               Heartstream, Inc.
                               (Name of Issuer)
                                       
                                       
                                       
                                       
                                    
                     Common Stock, par value $.001 per share
                         (Title of Class of Securities)
                                       
                                       
                                       
                                       

                                   421963109
                                (CUSIP Number)
                                       






(1)The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).





<PAGE>   2
CUSIP NO.    421963109                      13G        PAGE   2   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          MAYFIELD VII, A CALIFORNIA LIMITED PARTNERSHIP
          94-3167809
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          CALIFORNIA
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                            -0-
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          777,678      
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                           -0- 
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    777,678     
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

               777,678                
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               6.6%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              PN
          ---------------------------------------------------------------------


<PAGE>   3
CUSIP NO.    421963109                      13G        PAGE   3   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          MAYFIELD VII MANAGEMENT PARTNERS, A CALIFORNIA LIMITED PARTNERSHIP
          94-3167811
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          CALIFORNIA
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                            -0-
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          777,678      
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                           -0- 
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    777,678     
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

               777,678                
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               6.6%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              PN
          ---------------------------------------------------------------------


<PAGE>   4
CUSIP NO.    421963109                      13G        PAGE   4   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          MAYFIELD ASSOCIATES FUND II, A CALIFORNIA LIMITED PARTNERSHIP
          94-3191510

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

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          CALIFORNIA
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                            -0-
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          33,036
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                           -0- 
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    33,036
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                33,036
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               0.3%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              PN
          ---------------------------------------------------------------------


<PAGE>   5
CUSIP NO.    421963109                      13G        PAGE   5   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          YOGEN K. DALAL
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         27,811
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        27,811
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                838,525
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.1%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   6
CUSIP NO.    421963109                      13G        PAGE   6   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          F. GIBSON MYERS, JR.
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         45,876
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        45,876
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                856,590
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.2%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   7

CUSIP NO.    421963109                      13G        PAGE   7   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          KEVIN A. FONG
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         33,493
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        33,493
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                844,207
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.1%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   8
CUSIP NO.    421963109                      13G        PAGE   8   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          WILLIAM D. UNGER
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         30,746
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        30,746
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                841,460
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.1%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   9

CUSIP NO.    421963109                      13G        PAGE   9   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          WENDELL G. VAN AUKEN
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         22,603
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        22,603
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                833,317
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.0%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   10
CUSIP NO.    421963109                      13G        PAGE  10   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          MICHAEL J. LEVINTHAL
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         56,350 (includes options to purchase 21,149 
                                    shares)
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        56,350 (includes options to purchase 21,149 
                                    shares)
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                867,064 (includes options to purchase 21,149 shares)
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES*                                                         [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.3%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   11
CUSIP NO.    421963109                      13G        PAGE  11   OF  17   PAGES
         ---------------------                              -----    -----      

  (1)     NAMES OF REPORTING PERSONS                 
          S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS                

          A. GRANT HEIDRICH, III
          SOCIAL SECURITY NUMBER: ###-##-####
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [   ]
                                                                    (b)   [ X ]

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

  (3)     SEC USE ONLY

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

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          U.S.
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                         43,290
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                          810,714
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                        43,290
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                                    810,714
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

                854,004
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
          SHARES                                                          [   ]

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

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

               7.2%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

              IN
          ---------------------------------------------------------------------


<PAGE>   12
ITEM 1.

         (a)      NAME OF ISSUER:

                  Heartstream, Inc.

         (b)      ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

                  2401 4th Avenue, Suite 300
                  Seattle, WA 98121

ITEM 2.

         (a)      NAME OF PERSONS FILING:

                  Mayfield VII, a California Limited Partnership
                  Mayfield VII Management Partners, a California Limited
                  Partnership
                  Mayfield Associates Fund II, a California Limited Partnership
                  Yogen K. Dalal
                  Kevin A. Fong
                  Wendell G. Van Auken
                  A. Grant Heidrich, III
                  F. Gibson Myers, Jr.
                  William D. Unger
                  Michael J. Levinthal

         (b)      ADDRESS OF PRINCIPAL BUSINESS OFFICE:

                  c/o The Mayfield Fund
                  2800 Sand Hill Road
                  Menlo Park, CA 94025

         (c)      CITIZENSHIP:

                  The entities listed in Item 2(a) are California Limited
                  Partnerships.
                  The individuals listed in Item 2(a) are U.S. citizens.

         (d)      TITLE OF CLASS OF SECURITIES:

                  Common Stock, par value $.001 per share

         (e)      CUSIP NUMBER:

                  421963109






                              Page 12 of 17 Pages.


<PAGE>   13


ITEM 3.           IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR
                  13d-2(b), CHECK WHETHER THE PERSON FILING IS A:

                  Not applicable

ITEM 4.           OWNERSHIP

                  The information regarding ownership as set forth in Items 5-9
                  of Pages 2-11 hereto, is hereby incorporated by reference.

                  For a summary of total ownership by all Reporting Persons, see
                  Exhibit 2 hereto.

ITEM 5.           OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS

                  If this statement is being filed to report the fact that as of
                  the date hereof the reporting person has ceased to be the
                  beneficial owner of more than five percent of the class of
                  securities, check the following [].

ITEM 6.           OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
                  PERSON

                  Not applicable.

ITEM 7.           IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
                  ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
                  COMPANY

                  Not applicable.

ITEM 8.           IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

                  Not applicable.

ITEM 9.           NOTICE OF DISSOLUTION OF GROUP

                  Not applicable.

ITEM 10.          CERTIFICATION

                  Not applicable.








                              Page 13 of 17 Pages.

<PAGE>   14

                                   SIGNATURES


                  After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement is true,
complete and correct.

Date:  February 17, 1998
                                    MAYFIELD VII
                                    A California Limited Partnership

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Authorized Signatory

                                    MAYFIELD VII MANAGEMENT PARTNERS
                                    A California Limited Partnership

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Authorized Signatory

                                    MAYFIELD ASSOCIATES FUND II
                                    A California Limited Partnership

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Authorized Signatory


                                    YOGEN K. DALAL

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact

                                    F. GIBSON MYERS, JR.


                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact


                                    KEVIN A. FONG

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact


                                    WILLIAM D. UNGER

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact





                              Page 14 of 17 Pages.
<PAGE>   15


                                    WENDELL G. VAN AUKEN

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact

                                    MICHAEL J. LEVINTHAL

                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact

                                    A. GRANT HEIDRICH, III


                                    By: /s/ George A. Pavlov
                                       ----------------------------------------
                                       George A. Pavlov, Attorney In Fact












                              Page 15 of 17 Pages.



<PAGE>   16

                                    EXHIBIT 1


Exhibit 1-       "Statement Appointing Designated Filer and Authorized
                 Signatory" is hereby incorporated by reference to Exhibit B to
                 the Statement on Schedule 13G dated February 10, 1997.




















                              Page 16 of 17 Pages.



<PAGE>   17

                                    EXHIBIT 2


<TABLE>
<CAPTION>
                                                                     PERCENT OF CLASS
                                                                       BENEFICIALLY
     NAME OF REPORTING PERSON              NUMBER OF SHARES              OWNED(1)
- -----------------------------------     -----------------------    ---------------------
<S>                                        <C>                         <C>
Mayfield VII,
a California Limited Partnership                  777,678                       6.6%

Mayfield VII Management Partners,
a California Limited Partnership
                                                  777,678 (2)                   6.6%

Mayfield Associates Fund II , a                    33,036 (3)                   0.3%
California Limited Partnership

Yogen K. Dalal                                    838,525 (4)                   7.1%

F. Gibson Myers                                   856,590 (4)                   7.2%

Kevin A. Fong                                     844,207 (4)                   7.1%

William D. Unger                                  843,460 (4)                   7.1%

Wendell G. Van Auken                              833,317 (4)                   7.0%

Michael J. Levinthal                              867,064 (4)(5)                7.3%

A. Grant Heidrich, III                            854,004 (4)                   7.2%

Total                                           1,072,659                       9.0%
</TABLE>


(1) The respective percentages set forth in this column were obtained by
dividing the number of shares by the aggregate number of outstanding shares of
Common Stock as of 12/31/97.

(2) Represents shares held of record by Mayfield VII, of which Mayfield VII
Management Partners is the sole General Partner.

(3) Represents shares held of record by Mayfield Associates Fund II.

(4) The individual Reporting Persons listed are General Partners of Mayfield VII
Management, which is the General Partner of Mayfield VII. The individual
Reporting Persons are also General Partners of Mayfield Associates Fund II. The
individual Reporting Persons may be deemed to have shared voting and dispositive
power over the shares which are or may be deemed to be beneficially owned by
Mayfield VII and Mayfield Associates Fund II but disclaim such beneficial
ownership. Each individual Reporting Person expressly disclaims that he is the
beneficial owner of any shares which are held by any other individual Reporting
Person in his individual capacity.

(5) Includes director options to purchase 21,149 shares, which are exercisable
by March 1, 1998.  Excludes options to purchase 4,183 shares, of which 277
shares will become exercisable every month through May 1999 and options to
purchase 6,668 shares, of which 833 shares will become exercisable quarterly
after January 29, 1998.




                              Page 17 of 17 Pages.


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission