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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. 2)*

ATHENAHEALTH, INC.
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
04685W 10 3
(CUSIP Number)
December 31, 2009
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

     o Rule 13d-1(b)

     o Rule 13d-1(c)

     þ 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 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).

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.

 
 

 

                     
CUSIP No.
  
04685W103 
 13G Page  
2 
   of   
9 
   Pages

 

           
1   NAME OF REPORTING PERSON

Venrock Associates
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ1
  (b)   o
     
3   SEC USE ONLY
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  New York, United States
       
  5   SOLE VOTING POWER
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   0
       
WITH 8   SHARED DISPOSITIVE POWER
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  0
     
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0%
     
12   TYPE OF REPORTING PERSON*
   
  PN
1 Venrock Associates, Venrock Associates II, L.P., Venrock Entrepreneurs Fund, L.P. and Venrock Management, LLC, the general partner of Venrock Entrepreneurs Fund, L.P., are members of a group for purposes of this Schedule 13G.

 

 

                     
CUSIP No.
  
04685W103 
 13G Page  
3 
   of   
9 
   Pages

 

           
1   NAME OF REPORTING PERSON

Venrock Associates II, L.P.
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ1
  (b)   o
     
3   SEC USE ONLY
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  New York, United States
       
  5   SOLE VOTING POWER
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   0
       
WITH 8   SHARED DISPOSITIVE POWER
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  0
     
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0%
     
12   TYPE OF REPORTING PERSON*
   
  PN
1 Venrock Associates, Venrock Associates II, L.P., Venrock Entrepreneurs Fund, L.P. and Venrock Management, LLC, the general partner of Venrock Entrepreneurs Fund, L.P., are members of a group for purposes of this Schedule 13G.

 

 

                     
CUSIP No.
  
04685W103 
 13G Page  
4 
   of   
9 
   Pages

 

           
1   NAME OF REPORTING PERSON

Venrock Entrepreneurs Fund, L.P.
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ1
  (b)   o
     
3   SEC USE ONLY
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  New York, United States
       
  5   SOLE VOTING POWER
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   0
       
WITH 8   SHARED DISPOSITIVE POWER
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  0
     
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0%
     
12   TYPE OF REPORTING PERSON*
   
  PN
1 Venrock Associates, Venrock Associates II, L.P., Venrock Entrepreneurs Fund, L.P. and Venrock Management, LLC, the general partner of Venrock Entrepreneurs Fund, L.P., are members of a group for purposes of this Schedule 13G.

 

 

                     
CUSIP No.
  
04685W103 
 13G Page  
5 
   of   
9 
   Pages

 

           
1   NAME OF REPORTING PERSON

Venrock Management, LLC
     
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
  (a)   þ1
  (b)   o
     
3   SEC USE ONLY
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION
   
  Delaware, United States
       
  5   SOLE VOTING POWER
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER
REPORTING    
PERSON   0
       
WITH 8   SHARED DISPOSITIVE POWER
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
   
  0
     
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
   
  0%
     
12   TYPE OF REPORTING PERSON*
   
  OO
1 Venrock Associates, Venrock Associates II, L.P., Venrock Entrepreneurs Fund, L.P. and Venrock Management, LLC, the general partner of Venrock Entrepreneurs Fund, L.P., are members of a group for purposes of this Schedule 13G.

 

 

                         
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6 
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9 
  Pages
Introductory Note: This Statement on Schedule 13G is filed on behalf of Venrock Associates, a limited partnership organized under the laws of the State of New York (“Venrock”), Venrock Associates II, L.P., a limited partnership organized under the laws of the State of New York (“Venrock II”), Venrock Entrepreneurs Fund, L.P., a limited partnership organized under the laws of the State of New York (“Entrepreneurs Fund”) and Venrock Management, LLC, a limited liability company organized under the laws of the State of Delaware (“Venrock Management” and collectively with Venrock, Venrock II and Entrepreneurs Fund, the “Venrock Entities”) in respect of shares of common stock of athenahealth, Inc.
     Item 1(a)   Name of Issuer:
athenahealth, Inc.
     Item 1(b)   Address of Issuer’s Principal Executive Offices:
311 Arsenal Street
Watertown, MA 02472
     Item 2(a)   Name of Person Filing:
Venrock Associates
Venrock Associates II, L.P.
Venrock Entrepreneurs Fund, L.P.
Venrock Management, LLC
     Item 2(b)   Address of Principal Business Office or, if none, Residence:
         
New York Office:
  Palo Alto Office:   Cambridge Office:
 
530 Fifth Avenue
  3340 Hillview Avenue   55 Cambridge Parkway
22nd Floor
  Palo Alto, CA 94304   Suite 100
New York, NY 10036
      Cambridge, MA 02142
     Item 2(c)   Citizenship:
         Each of Venrock, Venrock II and Entrepreneurs Fund are limited partnerships organized in the State of New York. Venrock Management is a limited liability company organized under the laws of the State of Delaware.
     Item 2(d)    Title of Class of Securities:
               Common Stock
     Item 2(e)    CUSIP Number
               04685W 10 3
     Item 3   Not applicable.
     Item 4   Ownership
               (a) and (b)
               Venrock, Venrock II and Entrepreneurs Fund do not own any shares of the Issuer’s common stock.

 

 

                         
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              (c)
              Not applicable.
     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 þ.
     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:
         This Schedule is being filed pursuant to Rule 13d-1(d). The identities of each of the Venrock Entities are stated in Item 2(a).
     Item 9   Notice of Dissolution of Group:
              Not applicable.
     Item 10   Certification
               Not applicable.

 

 

                         
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04685W103
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9 
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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.
         
Dated: February 16, 2010  VENROCK ASSOCIATES
VENROCK ASSOCIATES II, L.P.  		  
  By:   A General Partner
 		  
     
  By:   /s/ David L. Stepp    
    Authorized Signatory   
       
 
  VENROCK ENTREPRENEURS FUND, L.P.    
  By:   VENROCK MANAGEMENT, LLC    
  Its: General Partner   
       
     
  By:   /s/ David L. Stepp    
    Authorized Signatory   
       
 
  VENROCK MANAGEMENT, LLC

 		  
  By:   /s/ David L. Stepp    
    Authorized Signatory   
       

 

 

                         
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EXHIBIT INDEX
     
Exhibit No.    
 
    
99.1
  Agreement pursuant to Rule13d-1(k)(1) among Venrock Associates, Venrock Associates II, L.P., Venrock Entrepreneurs Fund, LP and Venrock Management, LLC.