Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Hull Brandon H
2. Date of Event Requiring Statement (Month/Day/Year)
09/19/2007
3. Issuer Name and Ticker or Trading Symbol
ATHENAHEALTH INC [ATHN]
(Last)
(First)
(Middle)
C/O CARDINAL PARTNERS, 600 ALEXANDER PARK, SUITE 204
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PRINCETON, NJ 08540
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Series C preferred stock   (1)   (2) Common Stock 1,915,246 $ (1) I See Footnote (3)
Series D preferred stock   (1)   (2) Common Stock 1,450,944 $ (1) I See Footnote (4)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Hull Brandon H
C/O CARDINAL PARTNERS
600 ALEXANDER PARK, SUITE 204
PRINCETON, NJ 08540
  X   X    

Signatures

/s/ Christopher E. Nolin Attorney-in-Fact 09/19/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) These shares will automatically convert into common stock on a one-for-one basis upon the closing of the Issuer's initial public offering of common stock.
(2) The preferred stock has no expiration date.
(3) The Reporting Person is a Director of the Issuer and a managing member of Cardinal Health Partners Management, L.L.C. which is the general partner of Cardinal Health Partners, L.P. ("Fund I"). The shares reported are owned directly by Fund I. The shares reported are owned indirectly by the Reporting Person named herein, who disclaims benefical ownership except to the extent of his pecuniary interest therein.
(4) The Reporting Person is a Director of the Issuer and a managing member of CHP II Management, L.L.C. which is the general partner of CHP II, L.P. ("Fund II"). The shares reported are owned directly by Fund II. The shares reported are owned indirectly by the Reporting Person named herein, who disclaims benefical ownership except to the extent of his pecuniary interest therein.

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