-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, I4biInIDhVZ7XdrpWkHx0jr5QFaRcl25AnTHj6+6YEQvggSuqpbMD0jRCynxq7S6 GxvCuENa20sNiHPrrE1iHw== 0000921895-07-002097.txt : 20070907 0000921895-07-002097.hdr.sgml : 20070907 20070907171759 ACCESSION NUMBER: 0000921895-07-002097 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20070907 DATE AS OF CHANGE: 20070907 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ORCHID CELLMARK INC CENTRAL INDEX KEY: 0001107216 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-TESTING LABORATORIES [8734] IRS NUMBER: 223392819 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-59033 FILM NUMBER: 071107046 BUSINESS ADDRESS: STREET 1: 4390 US ROUTE ONE CITY: PRINCETON STATE: NJ ZIP: 08540 BUSINESS PHONE: 6097502200 MAIL ADDRESS: STREET 1: 4390 US ROUTE ONE CITY: PRINCETON STATE: NJ ZIP: 08540 FORMER COMPANY: FORMER CONFORMED NAME: ORCHID BIOSCIENCES INC DATE OF NAME CHANGE: 20000217 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: ACCIPITER CAPITAL MANAGEMENT, LLC CENTRAL INDEX KEY: 0001280190 IRS NUMBER: 134220800 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 399 PARK AVENUE STREET 2: 38TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 BUSINESS PHONE: 2127058700 MAIL ADDRESS: STREET 1: 399 PARK AVENUE STREET 2: 38TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10022 FORMER COMPANY: FORMER CONFORMED NAME: ACCIPITER CAPITAL MANAGEMENT DATE OF NAME CHANGE: 20040213 SC 13G/A 1 sc13ga306588orc_09052007.htm sec document 

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 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)

                              Orchid Cellmark Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

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

                                    68573C107
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                September 5, 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)


- ----------------
      (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 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 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. 68573C107                   13G                    Page 2 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    ACCIPITER LIFE SCIENCES 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  512,295
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   0 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              512,295
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              0 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    512,295
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    1.75%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 3 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    ACCIPITER LIFE SCIENCES FUND (OFFSHORE), 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  513,207 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   0 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              513,207 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              0 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    513,207 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    1.75%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 4 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    ACCIPITER LIFE SCIENCES FUND II, 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  323,053 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   0 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              323,053 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              0 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    323,053 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    1.10%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 5 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    ACCIPITER LIFE SCIENCES FUND II (OFFSHORE), 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  639,881 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   0 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              639,881 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              0 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    639,881 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    2.18%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 6 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    ACCIPITER LIFE SCIENCES FUND II (QP), 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  368,971 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   0 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              368,971 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              0 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    368,971 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    1.26%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 7 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    CANDENS CAPITAL, 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  0 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   1,204,319 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              0 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              1,204,319 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    1,204,319 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    4.10%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 8 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    ACCIPITER 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         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  0 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   1,153,088 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              0 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              1,153,088 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    1,153,088 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    3.93%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 9 of 14 Pages
- ----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    GABE HOFFMAN
- --------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) / /
- --------------------------------------------------------------------------------
     3         SEC USE ONLY

- --------------------------------------------------------------------------------
     4         CITIZENSHIP OR PLACE OF ORGANIZATION

                    USA
- --------------------------------------------------------------------------------
 NUMBER OF         5     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  0 shares
  OWNED BY     -----------------------------------------------------------------
    EACH           6     SHARED VOTING POWER
 REPORTING
PERSON WITH                   2,357,407 shares
               -----------------------------------------------------------------
                   7     SOLE DISPOSITIVE POWER

                              0 shares
               -----------------------------------------------------------------
                   8     SHARED DISPOSITIVE POWER

                              2,357,407 shares
- --------------------------------------------------------------------------------
     9         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
               PERSON

                    2,357,407 shares
- --------------------------------------------------------------------------------
    10         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
               CERTAIN SHARES*                                               / /
- --------------------------------------------------------------------------------
    11         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

                    8.03%
- --------------------------------------------------------------------------------
    12         TYPE OF REPORTING PERSON*

                    IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 10 of 14 Pages
- ----------------------                                    ----------------------


Item 1(a).  Name of Issuer:

            Orchid Cellmark Inc.

Item 1(b).  Address of Issuer's Principal Executive Offices:

            4390 US Route One
            Princeton, New Jersey 08540

Item 2(a).  Name of Person Filing:

            This statement is jointly filed by Accipiter Life Sciences Fund, LP,
            a Delaware  limited  partnership  ("ALSF"),  Accipiter Life Sciences
            Fund  (Offshore),  Ltd.,  a  Cayman  Islands  company  ("Offshore"),
            Accipiter Life Sciences Fund II, LP, a Delaware limited  partnership
            ("ALSF II"),  Accipiter  Life Sciences Fund II  (Offshore),  Ltd., a
            Cayman Islands Company ("Offshore II"), Accipiter Life Sciences Fund
            II (QP), LP, a Delaware  limited  partnership  ("QP II"),  Accipiter
            Capital  Management,  LLC,  a  Delaware  limited  liability  company
            ("Management"),  Candens Capital,  LLC, a Delaware limited liability
            company  ("Candens") and Gabe Hoffman  (together with ALSF, ALSF II,
            Offshore, Offshore II, QP II, Management and Candens, the "Reporting
            Person").  Because Gabe  Hoffman is the  managing  member of Candens
            (Gabe  Hoffman  and  Candens  are  hereinafter  referred  to as  the
            "Domestic  Controlling  Persons"),  which  in  turn  is the  general
            partner of ALSF,  ALSF II and QP II, and because Gabe Hoffman is the
            managing  member of  Management  (Gabe  Hoffman and  Management  are
            hereinafter referred to as the "Foreign Controlling Persons"), which
            in turn is the  investment  manager of Offshore and Offshore II, the
            Domestic  Controlling Persons and Foreign Controlling Persons may be
            deemed,  pursuant to Rule 13d-3 of the  Securities  Exchange  Act of
            1934,  as amended (the "Act"),  to be the  beneficial  owners of all
            shares of Common Stock held by ALSF, ALSF II, Offshore,  Offshore II
            and QP II. The Reporting Persons are filing this joint statement, as
            they may be considered a "group" under Section  13(d)(3) of the Act.
            However,  neither  the fact of this  filing nor  anything  contained
            herein shall be deemed to be an admission by the  Reporting  Persons
            that such a group exists.

Item 2(b).  Address of Principal Business Office or, if None, Residence:

            399 Park Avenue, 38th Floor
            New York, New York 10022

Item 2(c).  Citizenship:

            ALSF, ALSF II, QP II, Candens and Management are organized under the
            laws  of  the  State  of  Delaware.  Offshore  and  Offshore  II are
            organized  under the laws of the Cayman  Islands.  Gabe Hoffman is a
            citizen of the United States of America.

Item 2(d).  Title of Class of Securities:

            Common Stock



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 11 of 14 Pages
- ----------------------                                    ----------------------


Item 2(e).  CUSIP Number:

            68573C107

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:

            /X/   Not Applicable

      (a)   / /   Broker or dealer  registered  under Section 15 of the Exchange
                  Act.

      (b)   / /   Bank as defined in Section 3(a)(6) of the Exchange Act.

      (c)   / /   Insurance  company  as  defined  in  Section  3(a)(19)  of the
                  Exchange Act.

      (d)   / /   Investment   company   registered   under  Section  8  of  the
                  Investment Company Act.

      (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)   / /   Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

Item 4.     Ownership

            The percentages  reported herein are calculated  based on 29,356,429
shares of Common Stock, $0.001 par value per share, outstanding, as of August 1,
2007, as reported in the Issuer's Quarterly Report on Form 10-Q, for the quarter
ended June 30, 2007 and filed with the  Securities  and Exchange  Commission  on
August 2, 2007.

            See Cover Pages Items 5-11.

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 / /.



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 12 of 14 Pages
- ----------------------                                    ----------------------


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 or Control Person.

            Not Applicable

Item 8.     Identification and Classification of Members of the Group.

            See Exhibit A to the Schedule 13G dated May 25, 2006.

Item 9.     Notice of Dissolution of Group.

            Not Applicable

Item 10.    Certifications.

            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.



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 13 of 14 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.

Dated: September 7, 2007                ACCIPITER LIFE SCIENCES FUND, LP

                                        By: Candens Capital, LLC
                                            its general partner

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member


                                        ACCIPITER LIFE SCIENCES FUND II, LP

                                        By: Candens Capital, LLC
                                            its general partner

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member


                                        ACCIPITER LIFE SCIENCES FUND
                                        (OFFSHORE), LTD.

                                        By: Accipiter Capital Management, LLC
                                            its investment manager

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member


                                        ACCIPITER LIFE SCIENCES FUND II
                                        (OFFSHORE), LTD.

                                        By: Accipiter Capital Management, LLC
                                            its investment manager

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member



- ----------------------                                    ----------------------
CUSIP No. 68573C107                   13G                    Page 14 of 14 Pages
- ----------------------                                    ----------------------


                                        ACCIPITER LIFE SCIENCES FUND II (QP), LP

                                        By: Candens Capital, LLC
                                            its general partner

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member


                                        ACCIPITER CAPITAL MANAGEMENT, LLC

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member


                                        CANDENS CAPITAL, LLC

                                        By: /s/ Gabe Hoffman
                                            ------------------------------------
                                            Gabe Hoffman, Managing Member


                                        /s/ Gabe Hoffman
                                        ----------------------------------------
                                        GABE HOFFMAN
-----END PRIVACY-ENHANCED MESSAGE-----