X0202 3 2007-01-26 0 0000727510 ENZON PHARMACEUTICALS INC ENZN 0000919185 HIGHBRIDGE CAPITAL MANAGEMENT LLC 9 WEST 57TH STREET, 27TH FLOOR NEW YORK NY 10019 0 0 1 0 0000931921 HIGHBRIDGE CAPITAL CORP C/O HARMONIE FUND SERVICES THE CAYMAN CORPORATE CENTRE, 4TH FLOOR 27 HOSPITAL ROAD, GRAND CAYMAN E9 00000 CAYMAN ISLANDS 0 0 1 0 0001308315 Highbridge International LLC 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 0001390331 Highbridge Convertible Arbitrage Master Fund, L.P. C/O HIGHBRIDGE CAPITAL MANAGEMENT, LLC 9 WEST 57TH STREET, 27TH FLOOR NEW YORK NY 10019 0 0 1 0 4% Convertible Senior Notes 9.55 2006-05-23 2013-06-01 Common Stock 5026176 I See footnotes 1,047,120 shares of Common Stock are issuable to Highbridge Convertible Arbitrage Master Fund, L.P. upon conversion of the 4% Convertible Senior Notes and 3,979,056 shares of Common Stock are issuable to Highbridge International LLC upon conversion of the 4% Convertible Senior Notes. Highbridge International LLC is a subsidiary of Highbridge Master L.P. Highbridge Capital Corporation and Highbridge Capital L.P. are limited partners of Highbridge Master L.P. Highbridge GP, Ltd. is the General Partner of Highbridge Master L.P. Highbridge GP, LLC is the General Partner of Highbridge Capital L.P. Highbridge Capital Management, LLC is the trading manager of Highbridge Capital Corporation, Highbridge Capital L.P., Highbridge International LLC, Highbridge Master L.P. and Highbridge Convertible Arbitrage Master Fund, L.P. 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. HIGHBRIDGE CAPITAL MANAGEMENT, LLC, By: /s/ Carolyn Rubin, Managing Director 2007-02-20