2004 NEWS RELEASES

December 22, 2004

HUMAN GENOME SCIENCES ANNOUNCES AGREEMENT TO EXIT FACILITY AT 9800 MEDICAL CENTER DRIVE

November 30, 2004

HUMAN GENOME SCIENCES COMPLETES PATIENT ENROLLMENT IN A PHASE 2 CLINICAL TRIAL OF HGS-ETR1 FOR THE TREATMENT OF NON-SMALL CELL LUNG CANCER

November 30, 2004

HUMAN GENOME SCIENCES INITIATES PHASE 2 CLINICAL TRIAL OF ALBUFERON IN COMBINATION WITH RIBAVIRIN IN TREATMENT-EXPERIENCED HEPATITIS C PATIENTS

November 22, 2004

H. THOMAS WATKINS APPOINTED CHIEF EXECUTIVE OFFICER OF HUMAN GENOME SCIENCES

November 8, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT CIBC WORLD MARKETS INVESTMENT CONFERENCE

November 2, 2004

HUMAN GENOME SCIENCES REPORTS POSITIVE RESULTS OF PHASE 1/2 CLINICAL TRIAL OF ALBUFERON® IN CHRONIC HEPATITIS C

November 2, 2004

HUMAN GENOME SCIENCES CHARACTERIZES PANEL OF NOVEL HUMAN MONOCLONAL ANTIBODIES THAT SPECIFICALLY ANTAGONIZE THE CCR5 RECEPTOR AND BLOCK HIV-1 ENTRY

November 2, 2004

HUMAN GENOME SCIENCES REPORTS RESULTS OF PRECLINICAL STUDIES OF HGS-TR2J (TRAIL-R2 MAB) AND TRAIL-R2 PROTEIN EXPRESSION

October 26, 2004

HUMAN GENOME SCIENCES ANNOUNCES THIRD QUARTER 2004 FINANCIAL RESULTS

October 26, 2004

HUMAN GENOME SCIENCES ANNOUNCES AGREEMENT WITH GLAXOSMITHKLINE FOR DEVELOPMENT AND COMMERCIALIZATION OF NOVEL DRUG TO TREAT DIABETES

October 19, 2004

HUMAN GENOME SCIENCES ANNOUNCES COMPLETION OF REPURCHASE OF CONVERTIBLE SUBORDINATED NOTES

October 13, 2004

HUMAN GENOME SCIENCES BEGINS DOSING OF PATIENTS IN A PHASE 2 CLINICAL TRIAL OF HGS-ETR1 IN NON-HODGKIN'S LYMPHOMA

October 13, 2004

HUMAN GENOME SCIENCES INITIATES A PHASE 2 CLINICAL TRIAL OF HGS-ETR1 IN PATIENTS WITH COLORECTAL CANCER

October 4, 2004

HUMAN GENOME SCIENCES ANNOUNCES COMPLETION OF OFFERING

October 1, 2004

HUMAN GENOME SCIENCES REPORTS RESULTS OF PRECLINICAL STUDIES OF TRAIL-R1 AND TRAIL-R2 AGONISTIC HUMAN MONOCLONAL ANTIBODIES AT EORTC-NCI-AACR SYMPOSIUM

September 29, 2004

HUMAN GENOME SCIENCES REPORTS RESULTS OF ONGOING PHASE 1 CLINICAL TRIALS OF HGS-ETR1 IN PATIENTS WITH ADVANCED CANCERS

September 29, 2004

HUMAN GENOME SCIENCES REPORTS INITIAL RESULTS OF PHASE 1 CLINICAL TRIALS OF HGS-ETR2 (TRAIL-R2 MAB) IN PATIENTS WITH ADVANCED CANCERS

September 29, 2004

HUMAN GENOME SCIENCES ANNOUNCES PRICING OF $250 MILLION PRIVATE PLACEMENT OF CONVERTIBLE SUBORDINATED NOTES

September 27, 2004

HUMAN GENOME SCIENCES ANNOUNCES PROPOSED PRIVATE OFFERING OF CONVERTIBLE SUBORDINATED NOTES

September 27, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT UBS CONFERENCE

September 20, 2004

ARGERIS (JERRY) N. KARABELAS, PH.D., TO BECOME CHAIRMAN OF HUMAN GENOME SCIENCES BOARD; CRAIG A. ROSEN, PH.D., NAMED PRESIDENT AND CHIEF OPERATING OFFICER

September 15, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT BANC OF AMERICA CONFERENCE

September 8, 2004

HUMAN GENOME SCIENCES ADVANCES ANTI-CANCER DRUG TO PHASE 2 CLINICAL DEVELOPMENT

September 7, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT BIOCENTURY/THOMSON FINANCIAL CONFERENCE

August 24, 2004

HUMAN GENOME SCIENCES INITIATES CLINICAL DEVELOPMENT OF NEW DRUG FOR THE TREATMENT OF CANCER

July 30, 2004

HUMAN GENOME SCIENCES REPORTS SECOND QUARTER 2004 FINANCIAL RESULTS

July 29, 2004

HUMAN GENOME SCIENCES COMPLETES PATIENT ENROLLMENT IN A PHASE 2 CLINICAL TRIAL OF LYMPHOSTAT-B FOR THE TREATMENT OF RHEUMATOID ARTHRITIS

July 29, 2004

HUMAN GENOME SCIENCES COMPLETES PATIENT ENROLLMENT IN A PHASE 2 CLINICAL TRIAL OF LYMPHOSTAT-B FOR THE TREATMENT OF SYSTEMIC LUPUS ERYTHEMATOSUS

July 27, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT BANC OF AMERICA CONFERENCE

June 7, 2004

HUMAN GENOME SCIENCES REPORTS RESULTS OF PHASE 1 CLINICAL TRIALS OF HGS-ETR1 (TRAIL-R1 MAB) IN PATIENTS WITH ADVANCED CANCERS

June 3, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT GOLDMAN SACHS CONFERENCE

May 26, 2004

HUMAN GENOME SCIENCES INITIATES PHASE 2 CLINICAL TRIAL OF ALBUFERON FOR THE TREATMENT OF CHRONIC HEPATITIS C

April 30, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT ROBERT W. BAIRD CONFERENCE

April 28, 2004

HUMAN GENOME SCIENCES REPORTS FINANCIAL RESULTS FOR FIRST QUARTER OF 2004

April 23, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT CIBC WORLD MARKETS CONFERENCE

March 31, 2004

HUMAN GENOME SCIENCES ANNOUNCES LICENSE AGREEMENT WITH DAKOCYTOMATION FOR DEVELOPMENT OF PHARMACOGENOMIC DIAGNOSTIC ASSAYS

March 30, 2004

HUMAN GENOME SCIENCES RECEIVES MILESTONE PAYMENT FROM GLAXOSMITHKLINE FOR INITIATION OF CLINICAL TRIALS OF GENOMICS-DERIVED DRUG FOR CARDIOVASCULAR DISEASE

March 25, 2004

HUMAN GENOME SCIENCES TO SHARPEN FOCUS - ANNOUNCES PLANS TO CONCENTRATE ON DRUGS OF HIGHEST POTENTIAL

March 25, 2004

WILLIAM HASELTINE PLANS TO RETIRE AS CHAIRMAN AND CHIEF EXECUTIVE OFFICER OF HUMAN GENOME SCIENCES

March 9, 2004

HUMAN GENOME SCIENCES REPORTS RESULTS OF PHASE 1 CLINICAL TRIAL OF ABTHRAX FOR USE IN PREVENTION AND TREATMENT OF ANTHRAX INFECTION

March 5, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATIONS AT SG COWEN CONFERENCE

March 5, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT JMP SECURITIES CONFERENCE

March 4, 2004

HUMAN GENOME SCIENCES ANNOUNCES SELECTION OF LYMPHOSTAT-BTM FOR PARTICIPATION IN FDA'S CONTINUOUS MARKETING APPLICATION PILOT 2 PROGRAM

March 3, 2004

HUMAN GENOME SCIENCES APPOINTS NEW MEMBERS TO ITS BOARD OF DIRECTORS

February 27, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT LEHMAN BROTHERS CONFERENCE

February 20, 2004

HUMAN GENOME SCIENCES TO PARTICIPATE IN BIO CEO + INVESTOR 2004 CONFERENCE

February 17, 2004

HUMAN GENOME SCIENCES CONFIRMS STOCK SALE AND TRANSFER BY CHAIRMAN AND CEO

February 17, 2004

HUMAN GENOME SCIENCES AWARDED 'WORKPLACE EXCELLENCE' SEAL OF APPROVAL BY MARYLAND WORK-LIFE ALLIANCE

February 10, 2004

HUMAN GENOME SCIENCES REPORTS FINANCIAL RESULTS FOR FULL YEAR AND FOURTH QUARTER 2003

February 5, 2004

HUMAN GENOME SCIENCES TO SPONSOR CONFERENCE CALL TO DISCUSS FULL YEAR AND FOURTH QUARTER 2003 FINANCIAL RESULTS

February 2, 2004

HUMAN GENOME SCIENCES REPORTS RESULTS OF PHASE 2 CLINICAL TRIAL OF REPIFERMIN IN PATIENTS WITH CANCER THERAPY-INDUCED MUCOSITIS

January 23, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT PIPER JAFFRAY CONFERENCE

January 12, 2004

HUMAN GENOME SCIENCES UPDATES PROGRESS OF SIX DRUGS IN CLINICAL TRIALS AT JPMORGAN CONFERENCE

January 9, 2004

HUMAN GENOME SCIENCES INVITES INVESTORS TO LISTEN TO WEBCAST OF PRESENTATION AT JPMORGAN CONFERENCE

January 8, 2004

HUMAN GENOME SCIENCES INITIATES PHASE 2 CLINICAL TRIAL OF LYMPHOSTAT-B FOR THE TREATMENT OF RHEUMATOID ARTHRITIS