Sec Form 4 Filing - ACCEL IX LP @ Facebook Inc - 2012-08-16

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person ACCEL IX LP 2. Issuer Name and Ticker or Trading Symbol Facebook Inc [ FB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O ACCEL PARTNERS, 428 UNIVERSITY AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 08/16/2012 (Street) PALO ALTO, CA94301 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 08/16/2012 J( 1 ) V 49,698,765 D $ 0 56,612,648 I By Accel IX L.P. ( 2 ) Class A Common Stock 08/16/2012 J( 1 ) V 5,294,863 D $ 0 6,032,562 I By Accel IX Strategic Partners L.P. ( 3 ) Class A Common Stock 08/16/2012 C 2,785,949 A $ 0 2,785,949 I By Accel Growth Fund L.P. ( 4 ) Class A Common Stock 08/16/2012 J( 1 ) V 2,785,949 D $ 0 0 I By Accel Growth Fund L.P. ( 4 ) Class A Common Stock 08/16/2012 C 54,385 A $ 0 54,385 I By Accel Growth Fund Strategic Partners L.P. ( 5 ) Class A Common Stock 08/16/2012 J( 1 ) V 54,385 D $ 0 0 I By Accel Growth Fund Strategic Partners L.P. ( 5 ) Class A Common Stock 08/16/2012 J( 1 ) V 724,144 A $ 0 724,144 I By Accel Growth Fund Associates L.L.C. ( 6 ) Class A Common Stock 08/16/2012 J( 1 ) V 16,491,451 A $ 0 16,491,451 I By Accel IX Associates L.L.C. ( 7 ) Class A Common Stock 08/16/2012 J( 8 ) 176,416 A $ 0 176,416 I By Accel Meritech Associates III L.L.C. ( 9 ) Class A Common Stock 08/16/2012 J( 8 ) 98,018 A $ 0 98,018 I By Accel Meritech Investors III L.L.C. ( 10 ) Class A Common Stock 9,910,536 I By Accel Investors 2005 L.L.C. ( 11 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 12 ) ( 12 ) 08/16/2012 C 2,785,949 ( 12 ) ( 12 ) Class A Common Stock ( 13 ) 2,785,949 $ 0 4,741,307 I By Accel Growth Fund L.P. ( 4 ) Class B Common Stock ( 12 ) ( 12 ) 08/16/2012 C 54,385 ( 12 ) ( 12 ) Class A Common Stock ( 13 ) 54,385 $ 0 92,554 I By Accel Growth Fund Strategic Partners L.P. ( 5 ) Class B Common Stock ( 12 ) ( 12 ) ( 12 ) ( 12 ) Class A Common Stock 100,292 100,292 I By Accel Growth Fund Investors 2009 L.L.C. ( 14 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ACCEL IX LP C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Growth Fund Associates L.L.C. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Growth Fund Investors 2009 L.L.C. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Growth Fund L.P. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Growth Fund Strategic Partners L.P. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Investors 2005 L.L.C. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel IX Associates L.L.C. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X ACCEL IX STRATEGIC PARTNERS LP C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Meritech Associates III L.L.C. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Accel Meritech Investors III L.L.C. C/O ACCEL PARTNERS 428 UNIVERSITY AVENUE PALO ALTO, CA94301 X Signatures Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member ofAccel IX Associates L.L.C., the General Partner of Accel IX L.P. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Growth Fund Associates L.L.C. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Growth Fund Investors 2009 L.L.C. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Growth Fund Associates L.L.C., the General Partner of Accel Growth Fund L.P. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Growth Fund Associates L.L.C., the General Partner of Accel Growth Fund Strategic Partners L.P. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Investors 2005 L.L.C. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel IX Associates L.L.C. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel IX Associates L.L.C., the General Partner of Accel IX Strategic Partners L.P. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Meritech Associates III L.L.C. 08/20/2012 Signature of Reporting Person Date Tracy L. Sedlock as attorney-in-fact for James W. Breyer as a Managing Member of Accel Meritech Investors III L.L.C. 08/20/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Transactions reported on this form represent pro rata distributions, and not a purchase or sale of securities, by Accel IX L.P., Accel IX Strategic Partners L.P., Accel Growth Fund L.P. and Accel Growth Fund Strategic Partners L.P. to their respective general and limited partners or members without consideration. Distribution transactions were executed pursuant to a plan established in compliance with the requirements of Rule 10b5-1. ( 2 )Accel IX Associates L.L.C. ("A9A"), which is the General Partner of Accel IX L.P. ("Accel IX"), has sole voting and investment power over the securities held by Accel IX. A9A disclaims beneficial ownership over such securities except to the extent of its pecuniary interest therein. In addition, James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of A9A and may be deemed to share voting and investment power over the shares held of record by Accel IX. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 3 )A9A, which is the General Partner of Accel IX Strategic Partners L.P. ("Accel SP"), has sole voting and investment power over the securities held by Accel SP. A9A disclaims beneficial ownership over such securities except to the extent of its pecuniary interest therein. In addition, James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of A9A and may be deemed to share voting and investment power over the shares held of record by Accel SP. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 4 )Accel Growth Fund Associates L.L.C ("AGFA"), which is the General Partner of Accel Growth Fund L.P. ("Accel Growth"), has sole voting and investment power over the securities held by Accel Growth. AGFA disclaims beneficial ownership over such securities except to the extent of its pecuniary interest therein. In addition, James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of AGFA and may be deemed to share voting and investment power over the shares held of record by Accel Growth. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 5 )AGFA, which is the General Partner of Accel Growth Fund Strategic Partners L.P. ("Accel Growth SP"), has sole voting and investment power over the securities held by Accel Growth SP. AGFA disclaims beneficial ownership over such securities except to the extent of its pecuniary interest therein. In addition, James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of AGFA and may be deemed to share voting and investment power over the shares held of record by Accel Growth SP. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 6 )James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of AGFA and may be deemed to share voting and investment power over the shares held of record by AGFA. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 7 )James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of A9A and may be deemed to share voting and investment power over the shares held of record by A9A. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 8 )Transactions reported on this form represent pro rata distributions, and not a purchase or sale of securities, by Meritech Capital Associates III L.L.C. and Meritech Capital Affiliates III L.P. to their respective general and limited partners or members without consideration. ( 9 )James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of Accel Meritech Associates III L.L.C. ("AMA III"), and may be deemed to share voting and investment power over the securities held by AMA III. Each of such individuals disclaims beneficial ownership over such securities except to the extent of his or her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 10 )James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of Accel Meritech Investors III L.L.C. ("AMI III"), and may be deemed to share voting and investment power over the securities held by AMI III. Each of such individuals disclaims beneficial ownership over such securities excep t to the extent of his or her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 11 )James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of Accel Investors 2005 L.L.C. ("Accel 2005"), and may be deemed to share voting and investment power over the securities held by Accel 2005. Each of such individuals disclaims beneficial ownership over such securities except to the extent of his or her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. ( 12 )The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1-for-1 basis (a) at the holder's option or (b) upon certain transfers of such shares and has no expiration date. ( 13 )The shares of Class B Common Stock automatically converted into Class A Common Stock on a 1-for-1 basis in connection with the transfer of such shares. ( 14 )James W. Breyer, who is a Director of the issuer, and certain other individuals are Managing Members of Accel Growth Fund Investors 2009 L.L.C. ("Accel Growth 2009"), and may be deemed to share voting and investment power over the securities held by Accel Growth 2009. Each of such individuals disclaims beneficial ownership over such securities except to the extent of his or her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

Remarks: In prior filings for the issuer, certain individual managing members of Accel IX Associates L.L.C., Accel Growth Fund Associates L.L.C., Accel Investors 2005 L.L.C. and Accel Growth Fund Investors 2009 L.L.C. were included as reporting persons. These individuals are not beneficial owners of shares amounting to 10% or more of the issuer and are therefore not required to report on this or future filings.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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