X0202 3 2007-04-26 0 0000356830 OSCIENT PHARMACEUTICALS CORP OSCI 0000919185 HIGHBRIDGE CAPITAL MANAGEMENT LLC 9 WEST 57TH STREET 27TH FLOOR NEW YORK NY 10019 0 0 1 0 0001308315 Highbridge International LLC THE CAYMAN CORPORATE CENTER, 4TH FLOOR 27 HOSPITAL ROAD GRAND CAYMAN, CAYMAN ISLANDS E9 00000 CAYMAN ISLANDS 0 0 1 0 0001141111 SMITHFIELD FIDUCIARY LLC THE CAYMAN CORPORATE CENTER, 4TH FLOOR 27 HOSPITAL ROAD GRAND CAYMAN, CAYMAN ISLANDS E9 00000 CAYMAN ISLANDS 0 0 1 0 0001308597 Dubin Glenn C/O HIGHBRIDGE CAPITAL MANAGEMENT, LLC 9 WEST 57TH STREET, 27TH FLOOR NEW YORK NY 10019 0 0 1 0 0001308598 Swieca Henry C/O HIGHBRIDGE CAPITAL MANAGEMENT, LLC 9 WEST 57TH STREET, 27TH FLOOR NEW YORK NY 10019 0 0 1 0 Shares of Common Stock, par value $0.10 7421 I See footnotes 3.50% Convertible Senior Notes 13.50 2007-05-01 2011-04-14 Common Stock 1710889 I See footnotes Warrants 24.53 2002-03-05 2008-06-04 Common Stock 58891 I See footnotes Warrants 27.84 2004-04-14 2008-10-15 Common Stock 25000 I See footnotes Warrants 17.76 2006-04-05 2011-11-04 Common Stock 161917 I See footnotes 7,421 shares of Common Stock are held by Highbridge International LLC. Highbridge Capital Management, LLC is the trading manager of Highbridge International LLC. Glenn Dubin is a Co-Chief Executive Officer of Highbridge Capital Management, LLC. Henry Swieca is a Co-Chief Executive Officer of Highbridge Capital Management, LLC. Each of the Reporting Persons disclaims beneficial ownership of the shares of Common Stock owned by another Reporting Person to the extent such beneficial ownership exceeds such Reporting Person's pecuniary interest. 1,710,889 shares of Common Stock are issuable to Highbridge International LLC upon conversion of the 3.50% Convertible Senior Notes. 58,891 shares of Common Stock are issuable to Smithfield Fiduciary LLC upon exercise of the Warrants. Smithfield Fiduciary LLC is a wholly-owned subsidiary of Highbridge International LLC. Highbridge Capital Management, LLC is the trading manager of Highbridge International LLC and Smithfield Fiduciary LLC. Glenn Dubin is a Co-Chief Executive Officer of Highbridge Capital Management, LLC. Henry Swieca is a Co-Chief Executive Officer of Highbridge Capital Management, LLC. Each of the Reporting Persons disclaims beneficial ownership of the shares of Common Stock owned by another Reporting Person to the extent such beneficial ownership exceeds such Reporting Person's pecuniary interest. 25,000 shares of Common Stock are issuable to Smithfield Fiduciary LLC upon exercise of the Warrants. 161,917 shares of Common Stock are issuable to Highbridge International LLC upon exercise of the Warrants. By: /s/ Carolyn Rubin, Managing Director 2007-05-15