Form: SC 13G/A

Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

SC 13G/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

Published on



UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549


SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 4)*

SONUS PHARMACEUTICALS, INC.
- -------------------------------------------------------------------------------
(Name of Issuer)

Common Stock, $0.001 Par Value Per Share
- -------------------------------------------------------------------------------
(Title of Class of Securities)

835692104
(CUSIP Number)


December 31, 2004
(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 the
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).


Page 1 of 11



CUSIP No. 835692104 13G Page 2 of 11 Pages


________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

S.A.C. Capital Advisors, LLC

________________________________________________________________________________
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 5. SOLE VOTING POWER

SHARES 0
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER

OWNED BY 220,950(1)(2) (see Item 4)
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER

REPORTING 0
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER

WITH 220,950(1)(2) (see Item 4)
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

220,950(1)(2) (see Item 4)

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

[_]

________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

1.0% (see Item 4)

________________________________________________________________________________
12. TYPE OF REPORTING PERSON*

00

________________________________________________________________________________
*SEE INSTRUCTIONS BEFORE FILLING OUT!


Page 2 of 11



CUSIP No. 835692104 13G Page 3 of 11 Pages


________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

S.A.C. Capital Management, LLC

________________________________________________________________________________
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 5. SOLE VOTING POWER

SHARES 0
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER

OWNED BY 220,950(1)(2) (see Item 4)
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER

REPORTING 0
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER

WITH 220,950(1)(2) (see Item 4)
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

220,950(1)(2) (see Item 4)

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

[_]

________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

1.0% (see Item 4)

________________________________________________________________________________
12. TYPE OF REPORTING PERSON*

00

________________________________________________________________________________
*SEE INSTRUCTIONS BEFORE FILLING OUT!


Page 3 of 11




CUSIP No. 835692104 13G Page 4 of 11 Pages


________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

S.A.C. Capital Associates, LLC

________________________________________________________________________________
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [_]
(b) [X]

________________________________________________________________________________
3. SEC USE ONLY



________________________________________________________________________________
4. CITIZENSHIP OR PLACE OF ORGANIZATION

Anguilla, British West Indies


________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER

SHARES 0
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER

OWNED BY 110,475(1) (see Item 4)
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER

REPORTING 0
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER

WITH 110,475(1) (see Item 4)
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

110,475(1) (see Item 4)

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

[_]

________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

0.5% (see Item 4)

________________________________________________________________________________
12. TYPE OF REPORTING PERSON*

00

________________________________________________________________________________
*SEE INSTRUCTIONS BEFORE FILLING OUT!


Page 4 of 11



CUSIP No. 835692104 13G Page 5 of 11 Pages


________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

S.A.C. Healthco Fund, LLC

________________________________________________________________________________
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [_]
(b) [X]

________________________________________________________________________________
3. SEC USE ONLY



________________________________________________________________________________
4. CITIZENSHIP OR PLACE OF ORGANIZATION

Anguilla, British West Indies


________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER

SHARES 0
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER

OWNED BY 110,475(2) (see Item 4)
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER

REPORTING 0
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER

WITH 110,475(2) (see Item 4)
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

110,475(2) (see Item 4)

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

[_]

________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

0.5% (see Item 4)

________________________________________________________________________________
12. TYPE OF REPORTING PERSON*

00

________________________________________________________________________________
*SEE INSTRUCTIONS BEFORE FILLING OUT!


Page 5 of 11



CUSIP No. 835692104 13G Page 6 of 11 Pages


________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

Steven A. Cohen

________________________________________________________________________________
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 5. SOLE VOTING POWER

SHARES 0
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER

OWNED BY 220,950(1)(2) (see Item 4)
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER

REPORTING 0
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER

WITH 220,950(1)(2) (see Item 4)
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

220,950(1)(2) (see Item 4)

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

[_]

________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

1.0% (see Item 4)

________________________________________________________________________________
12. TYPE OF REPORTING PERSON*

IN

________________________________________________________________________________
*SEE INSTRUCTIONS BEFORE FILLING OUT!


Page 6 of 11




ITEM 1(a) NAME OF ISSUER:
--------------
Sonus Pharmaceuticals, Inc.

ITEM 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
-----------------------------------------------
22026 20th Avenue SE
Bothell, Washington 98021

ITEMS 2(a) NAME OF PERSON FILING:
----------------------
This statement is filed by: (i) S.A.C. Capital Advisors, LLC,
("SAC Capital Advisors") with respect to shares of common
stock, par value $0.001 per share ("Shares"), of the Issuer
beneficially owned by S.A.C. Capital Associates, LLC ("SAC
Capital Associates") and S.A.C. Healthco Fund, LLC ("SAC
Healthco"); (ii) S.A.C. Capital Management, LLC, ("SAC Capital
Management") with respect to Shares beneficially owned by SAC
Capital Associates and SAC Healthco; (iii) SAC Capital
Associates with respect to Shares beneficially owned by it;
(iv) SAC Healthco with respect to Shares beneficially owned by
it; and (v) Steven A. Cohen with respect to Shares beneficially
owned by SAC Capital Advisors, SAC Capital Management, SAC
Capital Associates and SAC Healthco.


ITEM 2(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE:
-------------------------------------
The address of the principal business office of (i) SAC Capital
Advisors and Mr. Cohen is 72 Cummings Point Road, Stamford,
Connecticut 06902, (ii) SAC Capital Management is 540 Madison
Avenue, New York, New York 10022, and (iii) SAC Capital
Associates and SAC Healthco is P.O. Box 58, Victoria House, The
Valley, Anguilla, British West Indies.

ITEM 2(c) CITIZENSHIP:
------------
SAC Capital Advisors and SAC Capital Management are Delaware
limited liability companies. SAC Capital Associates and SAC
Healthco are Anguillan limited liability companies. Mr. Cohen
is a United States citizen.

ITEM 2(d) TITLE OF CLASS OF SECURITIES:
-----------------------------
Common Stock, par value $0.001 per share



Page 7 of 11




ITEM 2(e) CUSIP NUMBER:
-------------
835692104

ITEM 3 Not Applicable

ITEM 4 OWNERSHIP:
----------
The percentages used herein are calculated based upon the Shares
issued and outstanding as of November 2, 2004 as reported on the
Issuer's quarterly report on Form 10-Q filed with the Securities and
Exchange Commission by the Company for the fiscal quarter ended
September 30, 2004.

As of the close of business on December 31, 2004:

1. S.A.C. Capital Advisors, LLC
(a) Amount beneficially owned: 220,950(1)(2)
(b) Percent of class: 1.0%
(c)(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 220,950(1)(2)
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 220,950(1)(2)

2. S.A.C. Capital Management, LLC
(a) Amount beneficially owned: 220,950(1)(2)
(b) Percent of class: 1.0%
(c)(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 220,950(1)(2)
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 220,950(1)(2)

3. S.A.C. Capital Associates, LLC
(a) Amount beneficially owned: 110,475(1)
(b) Percent of class: 0.5%
(c)(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 110,475(1)
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 110,475(1)


Page 8 of 11



4. S.A.C. Healthco Fund, LLC
(a) Amount beneficially owned: 110,475(2)
(b) Percent of class: 0.5%
(c)(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 110,475(2)
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 110,475(2)

5. Steven A. Cohen
(a) Amount beneficially owned: 220,950(1)(2)
(b) Percent of class: 1.0%
(c)(i) Sole power to vote or direct the vote: -0-
(ii) Shared power to vote or direct the vote: 220,950(1)(2)
(iii) Sole power to dispose or direct the disposition: -0-
(iv) Shared power to dispose or direct the disposition: 220,950(1)(2)

1. The number of shares reported herein includes 110,475 shares
issuable upon exercise of warrants held by SAC Capital Associates.

2. The number of shares reported herein includes 110,475 shares
issuable upon exercise of warrants held by SAC Healthco.

SAC Capital Advisors, SAC Capital Management, and Mr. Cohen own
directly no shares of Common Stock or Warrants. Pursuant to
investment agreements, each of SAC Capital Advisors and SAC Capital
Management share all investment and voting power with respect to the
securities held by SAC Capital Associates and SAC Healthco. Mr. Cohen
controls both SAC Capital Advisors and SAC Capital Management. By
reason of the provisions of Rule 13D-3 of the Securities Exchange Act
of 1934, as amended, each of SAC Advisors, SAC Management and Mr.
Cohen may be deemed to own beneficially 220,950(1)(2) Shares
(constituting approximately 1.0% of the Shares outstanding). Each of
SAC Capital Advisors, SAC Capital Management and Mr. Cohen disclaim
beneficial ownership of any of the securities covered by this
statement.

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. |X|



Page 9 of 11




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 the signatory certifies that, to the best of his
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 10 of 11



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 14, 2005

S.A.C. CAPITAL ADVISORS, LLC


By: /s/ Peter Nussbaum
-----------------------------------------
Name: Peter Nussbaum
Title: Authorized Person


S.A.C. CAPITAL MANAGEMENT, LLC


By: /s/ Peter Nussbaum
-----------------------------------------
Name: Peter Nussbaum
Title: Authorized Person


S.A.C. CAPITAL ASSOCIATES, LLC


By: /s/ Peter Nussbaum
-----------------------------------------
Name: Peter Nussbaum
Title: Authorized Person


S.A.C. HEALTHCO FUND, LLC


By: /s/ Peter Nussbaum
-----------------------------------------
Name: Peter Nussbaum
Title: Authorized Person


STEVEN A. COHEN


By: /s/ Peter Nussbaum
---------------------------------
Name: Peter Nussbaum
Title: Authorized Person


Page 11 of 11