SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
SCHEDULE 13G/A
 
Under the Securities Exchange Act of 1934
(Amendment No. 2)*
 

EnteroMedics Inc.

(Name of Issuer)
 

Common Stock, par value $0.01 per share

(Title of Class of Securities)
 

29365M208

(CUSIP Number)
 

December 31, 2013

(Date of Event Which Requires Filing of This Statement)
 
 
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
 
¨ Rule 13d-1(b)
x Rule 13d-1(c)
¨ Rule 13d-1(d)
 
(Page 1 of 14 Pages)

 

______________________________

*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).

 
CUSIP No. 29365M20813G/APage 2 of 14 Pages

 

1

NAME OF REPORTING PERSON

Ardsley Partners Fund II, L.P.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

2,187,600 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

2,187,600 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,187,600 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

3.6%

12

TYPE OF REPORTING PERSON

PN

         

 

 

 
CUSIP No. 29365M20813G/APage 3 of 14 Pages

 

1

NAME OF REPORTING PERSON

Ardsley Partners Institutional Fund, L.P.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

1,812,400 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

1,812,400 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,812,400 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

3.0%

12

TYPE OF REPORTING PERSON

PN

         
 
CUSIP No. 29365M20813G/APage 4 of 14 Pages

 

1

NAME OF REPORTING PERSON

Ardsley Healthcare Fund, L.P.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

100,000 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

100,000 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

100,000 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

0.2%

12

TYPE OF REPORTING PERSON

PN

         

 

 

 

 
CUSIP No. 29365M20813G/APage 5 of 14 Pages

 

1

NAME OF REPORTING PERSON

Ardsley Partners Renewable Energy Fund, L.P.

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

200,000 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

200,000 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

200,000 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

0.3%

12

TYPE OF REPORTING PERSON

PN

         
 
CUSIP No. 29365M20813G/APage 6 of 14 Pages

 

1

NAME OF REPORTING PERSON

Ardsley Advisory Partners

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

New York

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

4,300,000 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

4,300,000 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,300,000 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

7.1%

12

TYPE OF REPORTING PERSON

PN; IA

         

 

 

 
CUSIP No. 29365M20813G/APage 7 of 14 Pages

 

1

NAME OF REPORTING PERSON

Ardsley Partners I

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

New York

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

4,200,000 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

4,200,000 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,200,000 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.9%

12

TYPE OF REPORTING PERSON

PN

         
 
CUSIP No. 29365M20813G/APage 8 of 14 Pages

 

1

NAME OF REPORTING PERSON

Philip J. Hempleman

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) x

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH:
5

SOLE VOTING POWER

0

6

SHARED VOTING POWER

5,917,872 shares of Common Stock

7

SOLE DISPOSITIVE POWER

0

8

SHARED DISPOSITIVE POWER

5,917,872 shares of Common Stock

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

5,917,872 shares of Common Stock

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

9.8%

12

TYPE OF REPORTING PERSON

IN

         
 
CUSIP No. 29365M20813G/APage 9 of 14 Pages

 

Item 1(a). NAME OF ISSUER
   
  The name of the issuer is EnteroMedics Inc. (the "Company").

 

Item 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
   
  The Company's principal executive offices are located at 2800 Patton Road, St. Paul, Minnesota 55113.

 

Item 2(a). NAME OF PERSON FILING
  This statement is filed by:
   
  (i) Ardsley Partners Fund II, L.P., a Delaware limited partnership ("AP II"), with respect to the shares of Common Stock, par value $0.01 per share ("Common Stock") directly owned by it;
   
  (ii) Ardsley Partners Institutional Fund, L.P., a Delaware limited partnership ("Ardsley Institutional"), with respect to the shares of Common Stock directly owned by it;
     
  (iii) Ardsley Healthcare Fund, L.P., a Delaware limited partnership ("Ardsley Healthcare"), with respect to the shares of Common Stock directly owned by it;
     
  (iv) Ardsley Partners Renewable Energy Fund, L.P., a Delaware limited partnership ("Ardsley Energy"), with respect to the shares of Common Stock directly owned by it;
     
  (v) Ardsley Advisory Partners, a New York general partnership ("Ardsley") which serves as Investment Adviser of AP II, Ardsley Institutional, Ardsley Healthcare and Ardsley Energy, with respect to the shares of Common Stock directly owned by AP II, Ardsley Institutional, Ardsley Healthcare and Ardsley Energy;
     
  (vi) Ardsley Partners I, a New York general partnership ("Ardsley Partners") which serves as General Partner of AP II, Ardsley Institutional and Ardsley Energy with respect to the shares of Common Stock owned by AP II, Ardsley Institutional and Ardsley Energy; and
     
  (vii) Philip J. Hempleman ("Mr. Hempleman"), the Managing Partner of Ardsley and Ardsley Partners and the General Partner of Ardsley Healthcare, with respect to the shares of Common Stock owned by AP II, Ardsley Institutional, Ardsley Healthcare and Ardsley Energy and with respect to the shares of Common Stock owned by certain accounts managed by him directly.
   
  The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons."  Any disclosures herein with respect to persons other than the Reporting Persons are made on information and belief after making inquiry to the appropriate party.  The filing of this statement should not be construed as an admission that any of the Reporting Persons is, for the purposes of Section 13G of the Act, the beneficial owner of the shares of Common Stock reported herein.

 

Item 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE
   
 
CUSIP No. 29365M20813G/APage 10 of 14 Pages

 

  The address of the business office of each of the Reporting Persons is 262 Harbor Drive, Stamford, Connecticut 06902.
   
Item 2(c). CITIZENSHIP
   
  AP II, Ardsley Institutional, Ardsley Healthcare and Ardsley Energy are Delaware limited partnerships.  Ardsley and Ardsley Partners are New York general partnerships.  Mr. Hempleman is a United States citizen.

   

Item 2(d). TITLE OF CLASS OF SECURITIES
   
  Common Stock, par value $0.01 per share.

 

Item 2(e). CUSIP NUMBER
   
  29365M208

 

Item 3. IF THIS STATEMENT IS FILED PURSUANT TO Rules 13d-1(b), OR 13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

 

  (a) ¨ Broker or dealer registered under Section 15 of the Act;
  (b) ¨ Bank as defined in Section 3(a)(6) of the Act;
  (c) ¨ Insurance company as defined in Section 3(a)(19) of the Act;
  (d) ¨ Investment company registered under Section 8 of the Investment Company Act of 1940;
  (e) ¨ An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
  (f) ¨

An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);

 

  (g) ¨ A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);
  (h) ¨

A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act;

 

  (i) ¨

A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act;

 

  (j) ¨ A non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J);
  (k) ¨ Group, in accordance with Rule 13d-1(b)(1)(ii)(K).

 

 

If filing as a non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J), please

specify the type of institution: ______________________________________

 

Item 4. OWNERSHIP
 
CUSIP No. 29365M20813G/APage 11 of 14 Pages

 

  The information required by Items 4(a) - (c) is set forth in Rows 5 - 11 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
   
  The Company's Form 10-Q, filed on November 8, 2013, indicates that the total number of outstanding shares of Common Stock as of October 31, 2013 was 60,695,410.  The percentages used herein and in the rest of the Schedule 13G/A are based upon such number of shares of Common Stock outstanding.  

 

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


Ardsley, the Investment Adviser of AP II, Ardsley Institutional, Ardsley Healthcare and Ardsley Energy, has the power to vote and direct the disposition of the proceeds from the sale of the shares of Common Stock owned by AP II, Ardsley Institutional, Ardsley Healthcare and Ardsley Energy and accordingly may be considered to be the direct "beneficial owner" of such shares of Common Stock.

Ardsley Partners, the General Partner of AP II, Ardsley Institutional and Ardsley Energy, shares the power to vote and direct the disposition of the shares of Common Stock owned by AP II, Ardsley Institutional and Ardsley Energy, and, accordingly may be considered to be the direct "beneficial owner" of such shares of Common Stock.

Mr. Hempleman is the Managing Partner of Ardsley and Ardsley Partners and the General Partner of Ardsley Healthcare and in that capacity directs their operations and therefore may be considered to be the indirect "beneficial owner" of the shares of Common Stock owned by AP II, Ardsley Institutional, Ardsley Healthcare, Ardsley Energy and certain accounts managed by him directly. Mr. Hempleman disclaims beneficial ownership of all of the shares of Common Stock reported in this 13G/A.

 

Item 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY OR CONTROL PERSON
  Not applicable.
   

  

Item 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
 
  Not applicable.

 

Item 9. NOTICE OF DISSOLUTION OF GROUP
 
  Not applicable.

 

Item 10. CERTIFICATION

 

  Each of the Reporting Persons hereby makes the following certification:
   
 
CUSIP No. 29365M20813G/APage 12 of 14 Pages

 

  By signing below each Reporting Person certifies that, to the best of his or its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

 

 
CUSIP No. 29365M20813G/APage 13 of 14 Pages

 

SIGNATURES

After reasonable inquiry and to the best of his or its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

DATE: February 14, 2014

 

  ARDSLEY PARTNERS FUND II, L.P.
  BY: ARDSLEY PARTNERS I,
  GENERAL PARTNER
   
  BY: /s/ Steve Napoli
  Steve Napoli
  General Partner
   
   
  ARDSLEY PARTNERS INSTITUTIONAL FUND, L.P.
  BY: ARDSLEY PARTNERS I,
  GENERAL PARTNER
   
  BY: /s/ Steve Napoli
  Steve Napoli
  General Partner
   
   
  ARDSLEY HEALTHCARE FUND, L.P.
  BY: PHILIP J. HEMPLEMAN,
  GENERAL PARTNER
   
  BY: /s/ Steve Napoli*
  As attorney in fact for
  Philip J. Hempleman
   
   
  ARDSLEY PARTNERS RENEWABLE ENERGY FUND, L.P..
 

BY: ARDSLEY PARTNERS I,

GENERAL PARTNER

 

   ARDSLEY ADVISORY PARTNERS
  BY: /s/ Steve Napoli
  Steve Napoli
  General Partner
   
   
  ARDSLEY ADVISORY PARTNERS
 
  BY: /s/ Steve Napoli
  Steve Napoli
  Partner
   
   
 
CUSIP No. 29365M20813G/APage 14 of 14 Pages

 

 

 

ARDSLEY PARTNERS I

   
  BY: /s/ Steve Napoli
  Steve Napoli
  General Partner
   
   
  PHILIP J. HEMPLEMAN, INDIVIDUALLY
   
  BY: /s/ Steve Napoli*
  Steve Napoli
  As attorney in fact for
  Philip J. Hempleman
   
* Evidence of Power of Attorney was filed with the Schedule 13G/A filed on February 15, 2006 (Acc-no: 0000902664-06-000895) and is incorporated by reference into this filing.