SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

Schedule 13G
(Rule 13d-102)

 

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b)

(Amendment No. 1)*

 

Ambit Biosciences Corporation

(Name of Issuer)

 

Common Stock

(Title of Class of Securities)

 

02318X100

(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)

 

¨ Rule 13d-1(c)

 

x 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 disclosures provided in a prior cover page.

 

The information required on 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).

 

(Continued on following pages)

 

Page 1 of 9

Exhibit Index on Page 8

 

 
 

 

CUSIP #02318X100 Page 2 of 9

 

1 NAME OF REPORTING PERSONS Foresite Capital Fund I, L.P. (“FCF I”)
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a) [_] (b) [X]
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
2,079,569 shares, except that Foresite Capital Management I, LLC (“FCM I”), the general partner of FCF I, may be deemed to have sole power to vote these shares, and James Tananbaum (“Tananbaum”), the managing member of FCM I, may be deemed to have sole power to vote these shares.
6 SHARED VOTING POWER
See response to row 5.
7 SOLE DISPOSITIVE POWER
2,079,569 shares, except that FCM I, the general partner of FCF I, may be deemed to have sole power to dispose of these shares, and Tananbaum, the managing member of FCM I, may be deemed to have sole power to dispose of these shares.
8 SHARED DISPOSITIVE POWER
See response to row 7.
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
  2,079,569
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
EXCLUDES CERTAIN SHARES
  [_]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
  11.6%
12 TYPE OF REPORTING PERSON PN
       

 

 
 

 

CUSIP #02318X100 Page 3 of 9

 

1 NAME OF REPORTING PERSONS Foresite Capital Management I, LLC (“FCM I”)
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a) [_] (b) [X]
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
2,079,569 shares, all of which are directly owned by Foresite Capital Fund I, L.P. (“FCF I”).  FCM I, the general partner of FCF I, may be deemed to have sole power to vote these shares, and James Tananbaum (“Tananbaum”), the managing member of FCM I, may be deemed to have sole power to vote these shares.
6 SHARED VOTING POWER
See response to row 5.
7 SOLE DISPOSITIVE POWER
2,079,569 shares, all of which are directly owned by FCF I.  FCM I, the general partner of FCF I, may be deemed to have sole power to dispose of these shares, and Tananbaum, the managing member of FCM I, may be deemed to have sole power to dispose of these shares.
8 SHARED DISPOSITIVE POWER
See response to row 7.
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
  2,079,569
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
EXCLUDES CERTAIN SHARES
  [_]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
  11.6%
12 TYPE OF REPORTING PERSON OO
       

 

 
 

 

CUSIP #02318X100 Page 4 of 9

 

1 NAME OF REPORTING PERSONS James Tananbaum (“Tananbaum”)
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a) [_] (b) [X]
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
2,079,569 shares, all of which are directly owned by Foresite Capital Fund I, L.P. (“FCF I”).  Foresite Capital Management I, LLC (“FCM I”), the general partner of FCF I, may be deemed to have sole power to vote these shares, and James Tananbaum (“Tananbaum”), the managing member of FCM I, may be deemed to have sole power to vote these shares.
6 SHARED VOTING POWER
See response to row 5.
7 SOLE DISPOSITIVE POWER
2,079,569 shares, all of which are directly owned by FCF I.  FCM I, the general partner of FCF I, may be deemed to have sole power to dispose of these shares, and Tananbaum, the managing member of FCM I, may be deemed to have sole power to dispose of these shares.
8 SHARED DISPOSITIVE POWER
See response to row 7.
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON
  2,079,569
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)
EXCLUDES CERTAIN SHARES
  [_]
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
  11.6%
12 TYPE OF REPORTING PERSON IN
       

 

 
 

 

CUSIP #02318X100 Page 5 of 9

 

ITEM 1(A). NAME OF ISSUER

 

Ambit Biosciences Corporation (the “Issuer”)

 

ITEM 1(B). ADDRESS OF ISSUER’S PRINCIPAL EXECUTIVE OFFICES

11080 Roselle Street

San Diego, California 92121

 

ITEM 2(A). NAME OF PERSONS FILING

This Schedule is filed by Foresite Capital Fund I, L.P., a Delaware limited partnership, Foresite Capital Management I, LLC, a Delaware limited liability company and James Tananbaum. The foregoing entities and individuals are collectively referred to as the “Reporting Persons.”

 

ITEM 2(B). ADDRESS OF PRINCIPAL OFFICE

 

The address for each of the Reporting Persons is:

 

c/o Foresite Capital Management

101 California Street, Suite 4100
San Francisco, CA 94111

ITEM 2(C). CITIZENSHIP

See Row 4 of cover page for each Reporting Person.

 

ITEM 2(D). TITLE OF CLASS OF SECURITIES

Common Stock, $0.001 par value

 

ITEM 2(D) CUSIP NUMBER

02318X100

 

ITEM 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

Not applicable.

 

ITEM 4. OWNERSHIP

 

The following information with respect to the ownership of the ordinary shares of the Issuer by the persons filing this Statement is provided as of December 31, 2013:

 

(a)Amount beneficially owned:

See Row 9 of cover page for each Reporting Person.

 

(b)Percent of Class:

See Row 11 of cover page for each Reporting Person.

 

 
 

 

CUSIP #02318X100 Page 6 of 9

 

(c)Number of shares as to which such person has:

 

(i)Sole power to vote or to direct the vote:

See Row 5 of cover page for each Reporting Person.

 

(ii)Shared power to vote or to direct the vote:

 

See Row 6 of cover page for each Reporting Person.

 

(iii)Sole power to dispose or to direct the disposition of:

 

See Row 7 of cover page for each Reporting Person.

 

(iv)Shared power to dispose or to direct the disposition of:

See Row 8 of cover page for each Reporting Person.

 

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.

Under certain circumstances set forth in the limited partnership agreement of FCF I and the limited liability company agreement of FCM I, the partners or members, as the case may be, of each of such entities may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the Issuer owned by each such entity of which they are a partner or member.

 

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.

Not applicable

 

ITEM 9. NOTICE OF DISSOLUTION OF GROUP.

Not applicable

 

ITEM 10. CERTIFICATION.

Not applicable

 

 
 

 

CUSIP #02318X100 Page 7 of 9

 

SIGNATURES

 

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.

 

Date: February 13, 2014

 

  FORESITE CAPITAL FUND I, L.P.
   
  By:  FORESITE CAPITAL MANAGEMENT I, LLC
  Its: Managing Member
     
     
     
  By: /s/ James Tananbaum
  Name: James Tananbaum
  Title: Managing Member

 

 

  Foresite Capital Management I, LLC
     
     
     
  By: /s/ James Tananbaum
  Name: James Tananbaum
  Title: Managing Member

 

 

  JAMES TANANBAUM
     
     
     
  By: /s/ James Tananbaum
  Name: James Tananbaum

 

 
 

 

CUSIP #02318X100 Page 8 of 9

 

EXHIBIT INDEX

 

 

Found on

Sequentially

Exhibit Numbered Page
   
Exhibit A:  Agreement of Joint Filing 9

 

 
 

 

CUSIP #02318X100 Page 9 of 9

 

exhibit A

 

Agreement of Joint Filing

 

The Reporting Persons hereby agree that a single Schedule 13G (or any amendment thereto) relating to the common stock of the Issuer shall be filed on behalf of each of the Reporting Persons. Note that a copy of the applicable Agreement of Joint Filing is already on file with the appropriate agencies.