UNITED STATES 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. ___)* Atheros Communications, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 04743P108 -------------------------------------------------------------------------------- (CUSIP Number) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [ ] Rule 13d-(c) [X] Rule 13d-1(d) *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 disclosures provided in a prior cover page. The information required on 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 1 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 2 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Foundation Capital Management Co. II, L.L.C. (94-3294072 ) ("FCM2") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 3,190,629 shares, of which 2,833,785 shares are directly owned by BENEFICIALLY Foundation Capital II, L.P. ("FC2"), 119,282 shares are directly owned OWNED BY EACH REPORTING by Foundation Capital II Principals Fund, L.L.C. ("FC2P"), and 237,562 PERSON shares are directly owned by Foundation Capital II Entrepreneurs Fund, WITH L.L.C. ("FC2E"). FCM2, the sole General Partner of FC2 and the sole Manager of FC2P and FC2E, may be deemed to have sole power to vote all of these shares. FCM2 hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein. -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 3,190,629 shares, of which 2,833,785 shares are directly owned by Foundation Capital II, L.P. ("FC2"), 119,282 shares are directly owned by Foundation Capital II Principals Fund, L.L.C. ("FC2P"), and 237,562 shares are directly owned by Foundation Capital II Entrepreneurs Fund, L.L.C. ("FC2E"). FCM2, the sole General Partner of FC2 and the sole Manager of FC2P and FC2E, may be deemed to have sole power to vote all of these shares. FCM2 hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein. -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,190,629 shares, of which 2,833,785 shares are directly owned by Foundation Capital II, L.P. ("FC2"), 119,282 shares are directly owned by Foundation Capital II Principals Fund, L.L.C. ("FC2P"), and 237,562 shares are directly owned by Foundation Capital II Entrepreneurs Fund, L.L.C. ("FC2E"). FCM2, the sole General Partner of FC2 and the sole Manager of FC2P and FC2E, may be deemed to have sole power to vote all of these shares. FCM2 hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein. ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.01% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 2 of 18 Pages ---------------------------------------------------------- --------------------------------------- CUSIP NO. 04743P108 13 G Page 3 of 18 Pages ---------------------------------------------------------- --------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Foundation Capital II, L.P. (94-3294074) ("FC2") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 2,833,785 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 2,833,785 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,833,785 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.23% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 3 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 4 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Foundation Capital II Principals Fund, L.L.C. (94-3296579) ("FC2P") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 119,282 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 119,282 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 119,282 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.26% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 4 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 5 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Foundation Capital II Entrepreneurs Fund, L.L.C. (94-3301748) ("FC2E") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 237,562 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 237,562 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 237,562 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.52% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 5 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 6 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) FC Leadership Management Co., L.L.C (91-2076858) ("FCLM") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 1,235,990 shares, of which 1,203,885 shares are directly owned by BENEFICIALLY Foundation Capital Leadership Fund, L.P. ("FCL") and 32,105 shares are OWNED BY EACH REPORTING directly owned by FC Leadership Principals Fund, L.L.C. ("FCLP"). PERSON FCLM, the sole General Partner of FCL and the sole Manager of FCLP, WITH may be deemed to have sole power to vote all of these shares. FCLM hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein. -------- ------------------------------------------------------------------------ 6 SHARED VOTING POWER 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 1,235,990 shares, of which 1,203,885 shares are directly owned by Foundation Capital Leadership Fund, L.P. ("FCL") and 32,105 shares are directly owned by FC Leadership Principals Fund, L.L.C. ("FCLP"). FCLM, the sole General Partner of FCL and the sole Manager of FCLP, may be deemed to have sole power to vote all of these shares. FCLM hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein. -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,235,990 shares, of which 1,203,885 shares are directly owned by Foundation Capital Leadership Fund, L.P. ("FCL") and 32,105 shares are directly owned by FC Leadership Principals Fund, L.L.C. ("FCLP"). FCLM, the sole General Partner of FCL and the sole Manager of FCLP, may be deemed to have sole power to vote all of these shares. FCLM hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein. ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.72% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 6 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 7 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Foundation Capital Leadership Fund, L.P. (94-3370925) ("FCL") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 1,203,885 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 1,203,885 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,203,885 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.65% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 7 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 8 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) FC Leadership Principals Fund, L.L.C. (94-3377483) ("FCLP") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware, United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 32,105 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 0 shares -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 32,105 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 0 shares ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 32,105 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.07% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 8 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 9 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) James C. Anderson ("Anderson") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 3,190,629 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, and 237,562 shares are directly owned by FC2E. Anderson is a Manager of FCM2. Anderson may be deemed to have shared power to vote all of these shares. Anderson hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,190,629 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, and 237,562 shares are directly owned by FC2E. Anderson is a Manager of FCM2. Anderson may be deemed to have shared power to vote all of these shares. Anderson hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. ------------------------------------ -------- ------------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,190,629 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.01% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 9 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 10 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) William B. Elmore ("Elmore") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 22,618 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Elmore is a Manager of FCM2 and FCLM. Elmore may be deemed to have shared power to vote all of these shares. Elmore hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 22,618 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Elmore is a Manager of FCM2 and FCLM. Elmore may be deemed to have shared power to vote all of these shares. Elmore hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,449,237 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.73% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 10 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 11 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Kathryn C. Gould ("Gould") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 81,942 shares BENEFICIALLY OWNED BY EACH REPORTING -------- ------------------------------------------------------------------------ PERSON 6 SHARED VOTING POWER WITH 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Gould is a Manager of FCM2 and FCLM. Gould may be deemed to have shared power to vote all of these shares. Gould hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in her name. -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 81,942 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Gould is a Manager of FCM2 and FCLM. Gould may be deemed to have shared power to vote all of these shares. Gould hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in her name. ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,508,561 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.73% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 11 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 12 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Paul G. Koontz ("Koontz") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 shares BENEFICIALLY OWNED BY EACH REPORTING -------- ------------------------------------------------------------------------ PERSON WITH 6 SHARED VOTING POWER 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Koontz is a Manager of FCM2 and FCLM. Koontz may be deemed to have shared power to vote all of these shares. Koontz hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Koontz is a Manager of FCM2 and FCLM. Koontz may be deemed to have shared power to vote all of these shares. Koontz hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,426,619 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.73% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 12 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 13 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Michael N. Schuh ("Schuh") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 63,250 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Schuh is a Manager of FCM2 and FCLM. Schuh may be deemed to have shared power to vote all of these shares. Schuh hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 63,250 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 4,426,619 shares, of which 2,833,785 are directly owned by FC2, 119,282 shares are directly owned by FC2P, 237,562 shares are directly owned by FC2E, 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Schuh is a Manager of FCM2 and FCLM. Schuh may be deemed to have shared power to vote all of these shares. Schuh hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,489,869 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.73% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 13 of 18 Pages ---------------------------------------------------------- -------------------------------------- CUSIP NO. 04743P108 13 G Page 14 of 18 Pages ---------------------------------------------------------- -------------------------------------- ------------ --------------------------------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Adam Grosser ("Grosser") ------------ --------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ------------ --------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY ------------ --------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------ --------------------------------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 6,045 shares BENEFICIALLY -------- ------------------------------------------------------------------------ OWNED BY EACH REPORTING PERSON 6 SHARED VOTING POWER WITH 1,235,990 shares, of which 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Grosser is a Manager of FCLM. Grosser may be deemed to have shared power to vote all of these shares. Grosser hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. -------- ------------------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 6,045 shares -------- ------------------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 1,235,990 shares, of which 1,203,885 shares are directly owned by FCL and 32,105 shares are directly owned by FCLP. Grosser is a Manager of FCLM. Grosser may be deemed to have shared power to vote all of these shares. Grosser hereby disclaims beneficial ownership of shares reported herein, except to the extent of any pecuniary interest therein and any shares held in his name. ------------ --------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,242,035 shares ------------ --------------------------------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------ --------------------------------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.72% ------------ --------------------------------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------ ---------------------------------------------------------------------------------------------------------* SEE INSTRUCTIONS BEFORE FILLING OUT! Page 14 of 18 Pages Item 1 (a) Name of Issuer: Atheros Communications, Inc. (b) Address of Issuer's Principal Executive Offices: 529 Almanor Avenue Sunnyvale, CA 94085 Item 2 (a) Foundation Capital Management Company II, L.L.C. ("FCM2") Foundation Capital II, L.P. ("FC2") Foundation Capital II Principals Fund, L.L.C. ("FC2P") Foundation Capital II Entrepreneurs Fund, L.L.C. ("FC2E") FC Leadership Management Co., L.L.C. ("FCLM") Foundation Capital Leadership Fund, L.P. ("FCL") FC Leadership Principals Fund, L.L.C. ("FCLP") James C. Anderson ("Anderson") William B. Elmore ("Elmore") Kathryn C. Gould ("Gould") Paul G. Koontz ("Koontz") Michael N. Schuh ("Schuh") Adam Grosser ("Grosser") FCM2 is the General Partner of FC2 and the Manager of FC2P and FC2E, and may be deemed to have sole power to vote and sole power to dispose of shares of the Issuer directly owned by FC2, FC2P and FC2E. FCLM is the General Partner of FCL and the Manager of FCLP, and may be deemed to have sole power to vote and sole power to dispose of shares of the Issuer directly owned by FCL and FCLP. Anderson, Elmore, Gould, Koontz and Schuh are Managers of FCM2, and may be deemed to have shared power to vote and shared power to dispose of the shares of Issuer directly owned by FC2, FC2P and FC2E. Elmore, Gould, Koontz, Schuh and Grosser are Managers of FCLM, and may be deemed to have shared power to vote and shared power to dispose of the shares of Issuer directly owned by FCL and FCLP. (b) Address of Principal Business Office: c/o Foundation Capital 70 Willow Road, Suite 200 Menlo Park, CA 94025 (c) Citizenship: FCM2, FC2, FC2P, FC2E, FCLM, FCL and FCLP - Delaware, United States of America Anderson, Elmore, Gould, Koontz, Schuh and Grosser - United States of America (d) Title of Class of Securities: Common Stock (e) CUSIP Number: 04743P108 Item 3 Not applicable. Page 15 of 18 Pages Item 4 Ownership. The following information with respect to the ownership of the Common Stock of the Issuer by the persons filing this Statement is provided as of December 31, 2004: ========================= ========== =========== ========== ========== ========== ========== =========== Ownership/Power FCM2 FC2 FC2P FC2E FCLM FCL FCLP ------------------------- ---------- ----------- ---------- ---------- ---------- ---------- ----------- Beneficial Ownership 3,190,629 2,833,785 119,282 237,562 1,235,990 1,203,885 32,105 ------------------------- ---------- ----------- ---------- ---------- ---------- ---------- ----------- Percentage of Class 7.01 6.23 0.26 0.52 2.72 2.65 0.07 ------------------------- ---------- ----------- ---------- ---------- ---------- ---------- ----------- Sole Voting Power 3,190,629 2,833,785 119,282 237,562 1,235,990 1,203,885 32,105 ------------------------- ---------- ----------- ---------- ---------- ---------- ---------- ----------- Shared Voting Power 0 0 0 0 0 0 0 ------------------------- ---------- ----------- ---------- ---------- ---------- ---------- ----------- Sole Dispositive Power 3,190,629 2,833,785 119,282 237,562 1,235,990 1,203,885 32,105 ------------------------- ---------- ----------- ---------- ---------- ---------- ---------- ----------- Shared Dispositive Power 0 0 0 0 0 0 0 ========================= ========== =========== ========== ========== ========== ========== =========== ========================= =========== ========== ========== =========== =========== ============ Ownership/Power Anderson Elmore Gould Koontz Schuh Grosser ------------------------- ----------- ---------- ---------- ----------- ----------- ------------ Beneficial Ownership 3,190,629 4,449,237 4,508,561 4,426,619 4,489,869 1,235,990 ------------------------- ----------- ---------- ---------- ----------- ----------- ------------ Percentage of Class 7.01 9.73 9.73 9.73 9.73 2.72 ------------------------- ----------- ---------- ---------- ----------- ----------- ------------ Sole Voting Power 0 22,618 81,942 0 63,250 6,045 ------------------------- ----------- ---------- ---------- ----------- ----------- ------------ Shared Voting Power 3,190,629 4,426,619 4,426,619 4,426,619 4,426,619 1,235,990 ------------------------- ----------- ---------- ---------- ----------- ----------- ------------ Sole Dispositive Power 0 22,618 81,942 0 63,250 6,045 ------------------------- ----------- ---------- ---------- ----------- ----------- ------------ Shared Dispositive Power 3,190,629 4,426,619 4,426,619 4,426,619 4,426,619 1,235,990 ========================= =========== ========== ========== =========== =========== ============ 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. Under certain circumstances set forth in the limited partnership agreement of FC2 and FCL and the limited liability company agreements of FCM2, FC2P, FC2E, FCLM and FCLP, the general partner, members and limited partners of each of such entities may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the Issuer owned by each such entity of which they are a partner. 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. Page 16 of 18 Pages Item 10 Certification. 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. Dated: February 10, 2005 /s/ William B. Elmore --------------------- William B. Elmore, individually and on behalf of Foundation Capital Management Company II, L.L.C. in his capacity as a Manager thereof, and on behalf of Foundation Capital II, L.P., Foundation Capital II Principals Fund, L.L.C. and Foundation Capital II Entrepreneurs Fund, L.L.C. in his capacity as a Manager of Foundation Capital Management Company II, L.L.C., the General Partner of Foundation Capital II, L.P. and the Manager of Foundation Capital II Principals Fund, L.L.C. and Foundation Capital II Entrepreneurs Fund, L.L.C. /s/ William B. Elmore --------------------- William B. Elmore, individually and on behalf of FC Leadership Management Co., L.L.C. in his capacity as a Manager thereof, and on behalf of Foundation Capital Leadership Fund, L.P. and FC Leadership Principals Fund, L.L.C. in his capacity as a Manager of FC Leadership Management Co., L.L.C., the General Partner of Foundation Capital Leadership Fund, L.P. and the Manager of FC Leadership Principals Fund, L.L.C. /s/ James C. Anderson ---------------------- Signature /s/ William B. Elmore ---------------------- Signature /s/ Kathryn C. Gould ---------------------- Signature /s/ Paul G. Koontz ---------------------- Signature /s/ Michael N. Schuh ---------------------- Signature /s/ Adam Grosser ---------------------- Signature Exhibit(s): A: Agreement of Joint Filing Page 17 of 18 Pages EXHIBIT A We, the undersigned, hereby express our agreement that the attached Schedule 13G (or any amendments thereto) relating to the Common Stock of Atheros Communications, Inc. is filed on behalf of each of us. Dated: February 10, 2005 /s/ William B. Elmore ---------------------- William B. Elmore, individually and on behalf of Foundation Capital Management Company II, L.L.C. in his capacity as a Manager thereof, and on behalf of Foundation Capital II, L.P., Foundation Capital II Principals Fund, L.L.C. and Foundation Capital II Entrepreneurs Fund, L.L.C. in his capacity as a Manager of Foundation Capital Management Company II, L.L.C., the General Partner of Foundation Capital II, L.P. and the Manager of Foundation Capital II Principals Fund, L.L.C. and Foundation Capital II Entrepreneurs Fund, L.L.C. /s/ William B. Elmore ---------------------- William B. Elmore, individually and on behalf of FC Leadership Management Co., L.L.C. in his capacity as a Manager thereof, and on behalf of Foundation Capital Leadership Fund, L.P. and FC Leadership Principals Fund, L.L.C. in his capacity as a Manager of FC Leadership Management Co., L.L.C., the General Partner of Foundation Capital Leadership Fund, L.P. and the Manager of FC Leadership Principals Fund, L.L.C. /s/ James C. Anderson ---------------------- Signature /s/ William B. Elmore ---------------------- Signature /s/ Kathryn C. Gould ---------------------- Signature /s/ Paul G. Koontz ---------------------- Signature /s/ Michael N. Schuh ---------------------- Signature /s/ Adam Grosser ---------------------- Signature Page 18 of 18 Pages