XNAS:ANAC Anacor Pharmaceuticals Inc Insider Activity 4 Filing - 9/11/2012

Effective Date 9/11/2012

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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 OF SECURITIES

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
VENROCK ASSOCIATES IV L P
  2. Issuer Name and Ticker or Trading Symbol
Anacor Pharmaceuticals Inc [ANAC]
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 VENROCK, 3340 HILLVIEW AVE.
3. Date of Earliest Transaction (Month/Day/Year)
09/11/2012
(Street)

PALO ALTO, CA 94304
4. If Amendment, Date Original Filed (Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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
Common Stock 09/11/2012   S   10,177 D $6.6427 3,794,808 I By Funds and LLC's(1)(2)
Common Stock 09/13/2012   S   15,000 D $6.5553 3,779,808 I By Funds and LLC's(2)(3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
VENROCK ASSOCIATES IV L P
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
Venrock Partners, L.P.
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
VENROCK ENTREPRENEURS FUND IV L P
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
Venrock Management IV, LLC
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
Venrock Partners Management, LLC
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
VEF Management IV, LLC
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
VENROCK HEALTHCARE CAPITAL PARTNERS LP
C/O VENROCK
3340 HILLVIEW AVE
PALO ALTO, CA 94304
    X    
VHCP Co-Investment Holdings, LLC
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    
VHCP Management, LLC
C/O VENROCK
3340 HILLVIEW AVE.
PALO ALTO, CA 94304
    X    

Signatures

 /s/ David L. Stepp, authorized signatory   09/13/2012
** Signature of Reporting Person Date

 /s/ David L. Stepp, as attorney in fact   09/13/2012
** Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Consists of 1,721,350 shares held by Venrock Associates IV, L.P. ("VA4"), 351,036 shares held by Venrock Partners, L.P. ("VP"), 42,293 shares held by Venrock Entrepreneurs Fund IV, L.P. ("VEF4"), 1,361,755 shares held by Venrock Healthcare Capital Partners, L.P. ("VHCP"), 249,101 shares held by VHCP Co-Investment Holdings LLC ("VHCP Co-Invest"), 46,092 shares held by Venrock Associates V, L.P. ("VA5"), 3,908 shares held by Venrock Partners V, L.P. ("VP5"), 5,663 shares held by Venrock Management IV, LLC ("VM4"), 1,193 shares held by Venrock Partners Management, LLC ("VPM"), 82 shares held by VEF Managment IV, LLC ("VEFM4") and 12,335 shares held by VHCP Management, LLC ("VHCP Management").
(2) VM4, VPM, VEFM4 are the sole general partners of VA4, VP and VEF4, respectively, and may be deemed to beneficially own these shares. VHCP Management is the general partner of VHCP and the manager of VHCP Co-Invest and may be deemed to beneficially own these shares. Venrock Management V, LLC ("VM5") and Venrock Partners Management V, LLC ("VPM5") are the sole general partners of VA5 and VP5, respectively, and may be deemed to beneficially own these shares. Bryan Roberts is a member of VM4, VPM, VEFM4, VM5 and VPM5 and a managing member of VHCP Management. Dr. Roberts expressly disclaims beneficial ownership over all shares held by VA4, VP, VEF4, VA5, VP5, VHCP, VHCP Co-Invest, VM4, VPM, VEFM4, VM5, VPM5 and VHCP Management except to the extent of his indirect pecuniary interest therein.
(3) Consists of 1,721,350 shares held by VA4, 351,036 shares held by VP, 42,293 shares held by VEF4, 1,361,755 shares held by VHCP, 249,101 shares held by VHCP Co-Invest, 32,265 shares held by VA5, 2,735 shares held by VP5, 5,663 shares held by VM4, 1,193 shares held by VPM, 82 shares held by VEFM4 and 12,335 shares held by VHCP Management.
 
Remarks:
Number one of two filings for the Venrock funds, dated September 13, 2012.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.

XNAS:ANAC Anacor Pharmaceuticals Inc Insider Activity 4 Filling

Anacor Pharmaceuticals Inc XNAS:ANAC Stock - Get Insider Activity SEC Filing of Anacor Pharmaceuticals Inc XNAS:ANAC stocks, including company profile, shares outstanding, strategy, business segments, operations, officers, consolidated financial statements, financial notes and ownership information.

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