SCHEDULE 13G
Amendment No. 6
Atheros Communications Incorporated
Common Stock
Cusip #04743P108
Cusip #04743P108
Item 1: Reporting Person - FMR LLC
Item 4: Delaware
Item 5: 412,295
Item 6: 0
Item 7: 9,679,130
Item 8: 0
Item 9: 9,679,130
Item 11: 14.345%
Item 12: HC
Cusip #04743P108
Item 1: Reporting Person - Edward C. Johnson 3d
Item 4: United States of America
Item 5: 0
Item 6: 0
Item 7: 9,679,130
Item 8: 0
Item 9: 9,679,130
Item 11: 14.345%
Item 12: IN
SCHEDULE 13G - TO BE INCLUDED IN
STATEMENTS
FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)
Item 1(a). Name of Issuer:
Atheros Communications Incorporated
Item 1(b). Name of Issuer's Principal Executive Offices:
5480 Great America Parkway
Santa Clara, CA 95054
Item 2(a). Name of Person Filing:
FMR LLC
Item 2(b). Address or Principal Business Office or, if None,
Residence:
82 Devonshire Street, Boston,
Massachusetts 02109
Item 2(c). Citizenship:
Not applicable
Item 2(d). Title of Class of Securities:
Common Stock
Item 2(e). CUSIP Number:
04743P108
Item 3. This statement is filed pursuant to Rule 13d-1(b) or 13d-2(b)
and the person filing, FMR LLC, is a parent holding company
in accordance with Section 240.13d-1(b)(ii)(G). (Note: See
Item 7).
Item 4. Ownership
(a) Amount Beneficially Owned: 9,679,130
(b) Percent of Class: 14.345%
(c) Number of shares as to which such
person has:
(i) sole power to vote or to direct
the vote: 412,295
(ii) shared power to vote or to
direct the vote: 0
(iii) sole power to dispose or to
direct the disposition of: 9,679,130
(iv) shared power to dispose or to
direct the disposition of: 0
Item 5. Ownership of Five Percent or Less of a Class.
Not applicable.
Item 6. Ownership of More than Five Percent on Behalf of Another
Person.
Various persons have the right to receive or the power to
direct the receipt of dividends from, or the proceeds from the
sale of, the Common Stock of Atheros Communications
Incorporated. The interest of one person, Fidelity Growth
Company Fund, an investment company registered under the
Investment Company Act of 1940, in the Common Stock of
Atheros Communications Incorporated, amounted to
7,985,152 shares or 11.834% of the total outstanding Common
Stock at December 31, 2009.
Item 7. Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on By the Parent
Holding Company.
See attached Exhibit A.
Item 8. Identification and Classification of Members of
the Group.
Not applicable. See attached Exhibit A.
Item 9. Notice of Dissolution of Group.
Not applicable.
Item 10. Certification.
By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired in the
ordinary course of business and were not acquired for the
purpose of and do not have the effect of changing or
influencing the control of the issuer of such securities and
were not acquired in connection with or as a participant in any
transaction having such purpose or effect.
Signature
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.
February 12, 2010
Date
/s/ Scott C. Goebel
Signature
Scott C. Goebel
Duly authorized under Power of Attorney
effective as of June 1, 2008 by and on behalf of FMR LLC
and its direct and indirect subsidiaries
SCHEDULE 13G - TO BE INCLUDED IN
STATEMENTS
FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)
Pursuant to the instructions in Item 7 of Schedule 13G,
Fidelity Management & Research Company ("Fidelity"), 82
Devonshire Street, Boston, Massachusetts 02109, a wholly-
owned subsidiary of FMR LLC and an investment adviser
registered under Section 203 of the Investment Advisers Act
of 1940, is the beneficial owner of 9,266,835 shares or
13.733% of the Common Stock outstanding of Atheros
Communications Incorporated ("the Company") as a result of
acting as investment adviser to various investment companies
registered under Section 8 of the Investment Company Act of
1940.
The ownership of one investment company, Fidelity
Growth Company Fund, amounted to 7,985,152 shares or
11.834% of the Common Stock outstanding. Fidelity Growth
Company Fund has its principal business office at 82
Devonshire Street, Boston, Massachusetts 02109.
Edward C. Johnson 3d and FMR LLC, through its
control of Fidelity, and the funds each has sole power to
dispose of the 9,266,835 shares owned by the Funds.
Members of the family of Edward C. Johnson 3d,
Chairman of FMR LLC, are the predominant owners, directly
or through trusts, of Series B voting common shares of FMR
LLC, representing 49% of the voting power of FMR LLC.
The Johnson family group and all other Series B shareholders
have entered into a shareholders' voting agreement under
which all Series B voting common shares will be voted in
accordance with the majority vote of Series B voting common
shares. Accordingly, through their ownership of voting
common shares and the execution of the shareholders' voting
agreement, members of the Johnson family may be deemed,
under the Investment Company Act of 1940, to form a
controlling group with respect to FMR LLC.
Neither FMR LLC nor Edward C. Johnson 3d,
Chairman of FMR LLC, has the sole power to vote or direct
the voting of the shares owned directly by the Fidelity Funds,
which power resides with the Funds' Boards of Trustees.
Fidelity carries out the voting of the shares under written
guidelines established by the Funds' Boards of Trustees.
Impresa Fund II LLC ("Impresa II"), 82 Devonshire
Street, Boston, Massachusetts 02109, a Delaware limited
liability company, is the beneficial owner of 271,265 shares or
0.402% of the outstanding common stock of the Company.
Northern Neck Investors LLC, a Delaware limited liability
company, is the manager and investment adviser of Impresa II,
and is registered
under Section 203 of the Investment Advisers Act of 1940.
Amista Ventures III Limited Partnership ("Amista
III"), 82 Devonshire Street, Boston, Massachusetts 02109, is
the beneficial owner of 105,231 shares or 0.156% of the
outstanding common stock of the Company. Amista III is a
Delaware limited partnership. The general partner of Amista
III is Amista Ventures Advisors III Limited Partnership, a
Delaware limited partnership. The general partner of Amista
Advisors III Limited Partnership is Northern Neck Investors
LLC, a Delaware limited liability company. The limited
partners of Amista III are Impresa Fund II LLC, Impresa Fund
III Limited Partnership, FIL Limited, Fidelity Ventures
Limited and an individual.
Amista Ventures Principals III Limited Partnership
("AVPIII"), 82 Devonshire Street, Boston, Massachusetts
02109, is the beneficial owner of 3,278 shares or 0.005% of
the outstanding common stock of the Company. AVPIII is a
Delaware limited partnership. The general partner of AVPIII
is Amista Ventures Advisors III Limited Partnership, a
Delaware limited partnership. The general partner of Amista
Ventures Advisors III Limited Partnership is Northern Neck
Investors LLC, a Delaware limited liability company. The
limited partners of AVPIII are members of the investment
management team of Volition Capital LLC, a sub-advisor to
Northern Neck Investors LLC, and other individuals.
Fidelity Ventures Principals I LLC ("FVPI"), 82
Devonshire Street, Boston, Massachusetts 02109, is the
beneficial owner of 32,521 shares or 0.048% of the
outstanding common stock of the Company. FVPI is a
Delaware limited liability company. The managing member
of FVPI is Fidelity Capital Associates, Inc., a Delaware
corporation. Fidelity Capital Associates, Inc. is a wholly-
owned subsidiary of FMR LLC. The members of FVPI are
members of the investment management team of Volition
Capital LLC and other individuals.
SCHEDULE 13G - TO BE INCLUDED IN
STATEMENTS
FILED PURSUANT TO RULE 13d-1(b) or 13d-2(b)
RULE 13d-1(f)(1) AGREEMENT
The undersigned persons, on February 12, 2010, agree
and consent to the joint filing on their behalf of this Schedule
13G in connection with their beneficial ownership of the
Common Stock of Atheros Communications Incorporated at
December 31, 2009.
FMR LLC
By /s/ Scott C. Goebel
Scott C. Goebel
Duly authorized under Power of Attorney effective as
of June 1, 2008, by and on behalf of FMR LLC and its direct
and indirect subsidiaries
Edward C. Johnson 3d
By /s/ Scott C. Goebel
Scott C. Goebel
Duly authorized under Power of Attorney effective as
of June 1, 2008, by and on behalf of Edward C. Johnson 3d
Fidelity Management & Research Company
By /s/ Scott C. Goebel
Scott C. Goebel
Senior V.P. and General Counsel
Fidelity Growth Company Fund
By /s/ Scott C. Goebel
Scott C. Goebel
Secretary