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

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 RULE 13d-2(b)
(Amendment No. 3)[1]

Sonus Pharmaceuticals, Inc.
- --------------------------------------------------------------------------------
(Name of Issuer)

Common Stock, $.001 par value
- --------------------------------------------------------------------------------
(Title of Class of Securities)

835692 10 4
- --------------------------------------------------------------------------------
(CUSIP Number)

December 31, 2005
- --------------------------------------------------------------------------------
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)

- ---------------------------------------

(1) 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 or otherwise
subject to the liabilities of that section of the Act but shall be subject to
all other provisions of the Act.



CUSIP No. 835692 10 4 Page 2 of 4 Pages

- --------------------------------------------------------------------------------
1) Name of Reporting Person Domain Public Equity Partners, L.P.
I.R.S. Identification
No. of Above Person
(Entities Only)
- --------------------------------------------------------------------------------
2) Check the Appropriate Box (a) [ ]
if a Member of a Group (b) [ ]
- --------------------------------------------------------------------------------
3) SEC Use Only
- --------------------------------------------------------------------------------
4) Citizenship or Place Delaware
of Organization
- --------------------------------------------------------------------------------
Number of 5) Sole Voting 1,964,197 shares
Shares Beneficially Power of Common Stock
Owned by Each (including shares issuable
Reporting Person upon exercise of warrants)
With
6) Shared Voting
Power -0-
-------------------------------------------------
7) Sole Disposi- 1,964,197 shares
tive Power of Common Stock
(including shares issuable
upon exercise of warrants)
-------------------------------------------------
8) Shared
Dispositive Power -0-
-------------------------------------------------

9) Aggregate Amount Beneficially 1,964,197 shares
Owned by Each Reporting person of Common Stock
(including shares issuable
upon exercise of warrants)
- --------------------------------------------------------------------------------
10) Check if the Aggregate
Amount in Row (9)
Excludes Certain Shares
- --------------------------------------------------------------------------------
11) Percent of Class
Represented by 6.3%
Amount in Row (9)
- --------------------------------------------------------------------------------
12) Type of Reporting Person PN


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CUSIP No. 835692 10 4 Page 3 of 4 Pages

Amendment No. 3 to Schedule 13G
----------------------------------

Reference is hereby made to the statement on Schedule 13G originally filed
with the Securities and Exchange Commission on August 6, 2003, Amendment No. 1
thereto filed on January 22, 2004 and Amendment No. 2 thereto filed on January
20, 2005 (as so amended, the "Schedule 13G"). Terms defined in the Schedule 13G
are used herein as so defined.

The following Items of the Schedule 13G are hereby amended and restated to
read in their entirety as follows:

Item 4 - Ownership.

(a) Amount Beneficially Owned:

1,964,197 shares of Common Stock (including shares issuable upon
exercise of warrants)

(b) Percent of Class:

6.3%

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

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

1,964,197 shares of Common Stock (including shares issuable upon
exercise of warrants)

(ii) shared power to vote or to direct the vote: -0-

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

1,964,197 shares of Common Stock (including shares issuable upon
exercise of warrants)

(iv) shared power to dispose or to direct the disposition of: -0-


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CUSIP No. 835692 10 4 Page 4 of 4 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.


DOMAIN PUBLIC EQUITY PARTNERS, L.P.
By: Domain Public Equity Associates , L.L.C.,
General Partner

By: Domain Associates, L.L.C., Managing Member

By:/s/ Kathleen K. Schoemaker
--------------------------
Managing Member

Date: January 17, 2005



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