SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

SCHEDULE 13G

 

Under the Securities Exchange Act of 1934

(Amendment No.)*

 

 

SONUS PHARMACEUTICALS INC,

(Name of Issuer)

 

COMMON STOCK, Par Value $0.001 per share

(Title of Class of Securities)

 

835692104

(CUSIP Number)

 

October 15, 2007

(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)

 

* 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).


CUSIP No. 835692104   Page 2 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Visium Balanced Fund, LP

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(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

 

            None

 

  6    SHARED VOTING POWER

 

            302,384 (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

            None

 

  8    SHARED DISPOSITIVE POWER

 

            302,384 (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            302,384 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            .82%

   
12  

TYPE OF REPORTING PERSON*

 

            OO

   

*SEE INSTRUCTIONS BEFORE FILLING OUT.

 

Page 2 of 12 Pages


CUSIP No. 835692104   Page 3 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Visium Long Bias Fund, LP

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(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

 

            None

 

  6    SHARED VOTING POWER

 

            106,770 (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

            None

 

  8    SHARED DISPOSITIVE POWER

 

            106,770 (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            106,770 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            .29%

   
12  

TYPE OF REPORTING PERSON*

 

            OO

   

*SEE INSTRUCTIONS BEFORE FILLING OUT.

 

Page 3 of 12 Pages


CUSIP No. 835692104   Page 4 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Visium Balanced Offshore Fund, Ltd.

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(b)  ¨

   
  3  

SEC USE ONLY

 

   
  4  

CITIZENSHIP OR PLACE OF ORGANIZATION

 

            Cayman Islands

   

 

NUMBER OF  

SHARES  

BENEFICIALLY  

OWNED BY  

EACH  

REPORTING  

PERSON  

WITH  

 

 

  5    SOLE VOTING POWER

 

            None

 

  6    SHARED VOTING POWER

 

            560,083 (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

            None

 

  8    SHARED DISPOSITIVE POWER

 

            560,083 (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            560,083 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            1.52%

   
12  

TYPE OF REPORTING PERSON*

 

            CO

   

*SEE INSTRUCTIONS BEFORE FILLING OUT.

 

Page 4 of 12 Pages


CUSIP No. 835692104   Page 5 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Visium Long Bias Offshore Fund, Ltd.

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(b)  ¨

   
  3  

SEC USE ONLY

 

   
  4  

CITIZENSHIP OR PLACE OF ORGANIZATION

 

            Cayman Islands

   

 

NUMBER OF  

SHARES  

BENEFICIALLY  

OWNED BY  

EACH  

REPORTING  

PERSON  

WITH  

 

 

  5    SOLE VOTING POWER

 

            None

 

  6    SHARED VOTING POWER

 

            365,692 (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

            None

 

  8    SHARED DISPOSITIVE POWER

 

            365,692 (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            365,692 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            .99%

   
12  

TYPE OF REPORTING PERSON*

 

            CO

   

*SEE INSTRUCTIONS BEFORE FILLING OUT.

 

Page 5 of 12 Pages


CUSIP No. 835692104   Page 6 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Visium Capital Management, LLC

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(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

 

            None

 

  6    SHARED VOTING POWER

 

            409,154 (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

            None

 

  8    SHARED DISPOSITIVE POWER

 

            409,154 (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            409,154 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            1.11%

   
12  

TYPE OF REPORTING PERSON*

 

            OO

   

 

Page 6 of 12 Pages


CUSIP No. 835692104   Page 7 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Visium Asset Management, LLC

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(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

 

            2,692,256 (See Item 4)

 

  6    SHARED VOTING POWER

 

            None

 

  7    SOLE DISPOSITIVE POWER

 

            2,692,256 (See Item 4)

 

  8    SHARED DISPOSITIVE POWER

 

            None

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            2,692,256 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            7.29%

   
12  

TYPE OF REPORTING PERSON*

 

            OO

   

*SEE INSTRUCTIONS BEFORE FILLING OUT.

 

Page 7 of 12 Pages


CUSIP No. 835692104   Page 8 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Atlas Master Fund, Ltd.

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(b)  ¨

   
  3  

SEC USE ONLY

 

   
  4  

CITIZENSHIP OR PLACE OF ORGANIZATION

 

            Cayman Islands

   

 

NUMBER OF  

SHARES  

BENEFICIALLY  

OWNED BY  

EACH  

REPORTING  

PERSON  

WITH  

 

 

  5    SOLE VOTING POWER

 

            (See Item 4)

          None

 

  6    SHARED VOTING POWER

 

            1,357,327 (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

             (See Item 4)

          None

 

  8    SHARED DISPOSITIVE POWER

 

            1,357,327 (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            1,357,327 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            3.68%

   
12  

TYPE OF REPORTING PERSON*

 

            CO

   

 

Page 8 of 12 Pages


CUSIP No. 835692104   Page 9 of 12 Pages                

 

  1  

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (Entities Only)

 

            Jacob Gottlieb

   
  2  

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ¨

(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

 

            2,692,256 (See Item 4)

 

  6    SHARED VOTING POWER

 

            None (See Item 4)

 

  7    SOLE DISPOSITIVE POWER

 

            2,692,256 (See Item 4)

 

  8    SHARED DISPOSITIVE POWER

 

            None (See Item 4)

  9  

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

            2,692,256 (See Item 4)

   
10  

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

 

            Not Applicable

  ¨
11  

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

            7.29%

   
12  

TYPE OF REPORTING PERSON*

 

            IN

   

*SEE INSTRUCTIONS BEFORE FILLING OUT.

 

Page 9 of 12 Pages


CUSIP No. 835692104    Page 10 of 12 Pages                
Item 1  

(a)

   Name of Issuer:      
     Sonus Pharmaceuticals, Inc. (the “Company”)      
 

(b)

   Address of Issuer’s Principal Executive Offices:      
    

22026 20th Ave. SE,

Bothell, Washington 98021

     
Item 2  

(a) – (c)

   This statement is filed on behalf of the following:      
     (1) Visium Balanced Fund, LP, a Delaware limited partnership (“VBF”), with its principal business office at c/o Visum Asset Management, LLC, 950 Third Avenue, New York, NY 10022.
     (6) Visium Long Bias Fund, LP, a Delaware limited partnership (“VLBF”), with its principal business office at c/o Visum Asset Management, LLC, 950 Third Avenue, New York, NY 10022.   
     (7) Visium Balanced Fund Offshore, Ltd., a Cayman Islands corporation (“VBFO”), with its principal business office at c/o Morgan Stanley Fund Services (Cayman) Limited, P.O. Box 2681GT, Century yard, 4th Floor, Cricket Square, Hutchins Drive, Grand Cayman, Cayman Islands, British West Indies.      
     (8) Visium Long Bias Fund Offshore, Ltd., a Cayman Islands corporation (“VLBFO”), with its principal business office at c/o Morgan Stanley Fund Services (Cayman) Limited, P.O. Box 2681GT, Century yard, 4th Floor, Cricket Square, Hutchins Drive, Grand Cayman, Cayman Islands, British West Indies.      
     (9) Visium Asset Management, LLC, a Delaware limited liability company (“VAM”), with its principal business office at Visum Asset Management, LLC, 950 Third Avenue, New York, NY 10022. VAM is the investment advisor to each of VBF, VLBF, VBFO and VLBFO.      
     (10) Visium Capital Management, LLC, a Delaware limited liability company (“VCM”), with its principal business office c/o Visum Asset Management, LLC, 950 Third Avenue, New York, NY 10022. VCM is the General Partner of VBF an VLBF.      
     Atlas Master Fund, Ltd., (“AMF”) a Cayman Islands corporation (“AMF”), with its principal business office at c/o Walkers SPV Limited, Walker House, P.O. Box 908 GT, George Town, Grand Cayman, Cayman Islands, British West Indies.      
 

(d)

   Title of Class of Securities:      
     Common Stock,      
 

(e)

   CUSIP Number:      
     835692104      
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   

 

Page 10 of 12 Pages


CUSIP No. 835692104   Page 11 of 12 Pages                
Item 4    Ownership:      
   VBF      
   (a)    Amount Beneficially Owned:      
      302,384 shares      
   (b)    Percent of Class:      
      .82%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         None      
      (ii)    shared power to vote or to direct vote:      
         302,384 shares      
      (iii)    sole power to dispose or direct disposition of:      
         None      
      (iv)    shared power to dispose or to direct disposition of:      
         302,384 shares      
   VLBF         
   (a)    Amount Beneficially Owned:      
      106,770 shares      
   (b)    Percent of Class:      
      .29%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         None      
      (ii)    shared power to vote or to direct vote:      
         106,770 shares      
      (iii)    sole power to dispose or direct disposition of:      
         None      
      (iv)    shared power to dispose or to direct disposition of:      
         106,770 shares      
   VBFO         
   (a)    Amount Beneficially Owned:      
      560,083 shares      
   (b)    Percent of Class:      
      1.52%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         None      
      (ii)    shared power to vote or to direct vote:      
         560,083 shares      
      (iii)    sole power to dispose or direct disposition of:      
         None      
      (iv)    shared power to dispose or to direct disposition of:      
         560,083 shares      
   VLBFO         
   (a)    Amount Beneficially Owned:      
      365,692 shares      
   (b)    Percent of Class:      
      .99%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         None      
      (ii)    shared power to vote or to direct vote:      
         365,692 shares      
      (iii)    sole power to dispose or direct disposition of:      
         None      
      (iv)    shared power to dispose or to direct disposition of:      
         365,692 shares      
   VAM         
   (a)    Amount Beneficially Owned:      
      By virtue of its position as investment advisor to each of VBF, VLBF, VBFO and VLBFO as well as managing an account for AMF, VAM may be deemed to beneficially own the 2,692,256 shares of the Company’s Common Stock beneficially owned by VBF, VLBF, VBFO and VLBFO as well as the shares of the Company’s Common Stock in the AMF managed account.      
   (b)    Percent of Class:      
      7.29%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         2,692,256 shares      
      (ii)    shared power to vote or to direct vote:      
         None      
      (iii)    sole power to dispose or direct disposition of:      
         2,692,256 shares      
      (iv)    shared power to dispose or to direct disposition of:      
         None      
   VCM         
   (a)    Amount Beneficially Owned:      
      By virtue of its position as General Partner to each of VBF and VLBF, VCM may be deemed to beneficially own the 409,154 shares of the Company’s Common Stock beneficially owned by VBF and VLBF.      
   (b)    Percent of Class:      
      1.11%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         None      
      (ii)    shared power to vote or to direct vote:      
         409,154 shares      
      (iii)    sole power to dispose or direct disposition of:      
         None      
      (iv)    shared power to dispose or to direct disposition of:      
         409,154 shares      
   Jacob Gottlieb      
   (a)    Amount Beneficially Owned:      
      By virtue of his position as the principal of VAM and the sole managing member of VCM, Dr. Gottlieb may be deemed to beneficially own the 2,692,256 shares of the Company’s Common Stock beneficially owned by VAM.      
   (b)    Percent of Class:      
      7.29%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         2,692,256 shares      
      (ii)    shared power to vote or to direct vote:      
         None      
      (iii)    sole power to dispose or direct disposition of:      
         2,692,256 shares      
      (iv)    shared power to dispose or to direct disposition of:      
         None      

Ownership:

           
   AMF         
   (a)    Amount Beneficially Owned:      
      1,357,327 shares      
   (b)    Percent of Class:      
      3.68%      
   (c)    Number of Shares as to which person has:      
      (i)    sole power to vote or to direct vote:      
         None      
      (ii)    shared power to vote or to direct vote:      
         1,357,327 shares      
      (iii)    sole power to dispose or direct disposition of:      
         None      
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:      
   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:      
   Not Applicable      
Item 9    Notice of Dissolution of Group:      
   Not Applicable      
Item 10    Certification:      
   By signing below I certify that, to the best of my 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.      

 

Page 11 of 12 Pages


CUSIP No. 835692104   Page 12 of 12 Pages                

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.

Date: October 15, 2007

 

VISIUM ASSET MANAGEMENT, LLC     VISIUM LONG BIAS FUND, LP
By:  

/s/ Mark Gottlieb

    By:  

/s/ Mark Gottlieb

  Mark Gottlieb       Mark Gottlieb
  Authorized Signatory       Authorized Signatory
VISIUM BALANCED FUND, LP     VISIUM BALANCED OFFSHORE FUND, LTD.
By:  

/s/ Mark Gottlieb

    By:  

/s/ Mark Gottlieb

  Mark Gottlieb       Mark Gottlieb
  Authorized Signatory       Authorized Signatory
VISIUM CAPITAL MANAGEMENT, LLC     VISIUM LONG BIAS OFFSHORE FUND, LTD.
By:  

/s/ Mark Gottlieb

    By:  

/s/ Mark Gottlieb

  Mark Gottlieb       Mark Gottlieb
  Authorized Signatory       Authorized Signatory
JACOB GOTTLIEB     ATLAS MASTER FUND, LTD.
By:  

/s/ Mark Gottlieb

    By:  

/s/ Matthew Siclari

  Authorized Signatory       Authorized Signatory

 

Page 12 of 12 Pages