AVALON PHARMACEUTICALS INC Contracts & Agreements

SECOND AMENDMENT TO AGREEMENT AND PLAN OF MERGER AND REORGANIZATION (Filed With SEC on April 2, 2009)

FIRST AMENDMENT TO NOTE PURCHASE AGREEMENT (Filed With SEC on April 2, 2009)

AMENDMENT NO. 2 (Filed With SEC on April 2, 2009)

TERM NOTE $1,000,000 March 30, 2009 (Filed With SEC on April 2, 2009)

FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER AND REORGANIZATION (Filed With SEC on January 14, 2009)

AMENDMENT NO. 1 (Filed With SEC on January 14, 2009)

AGREEMENT AND PLAN OF MERGER AND REORGANIZATION (Filed With SEC on October 30, 2008)

FORM OF CONTINGENT VALUE RIGHTS AGREEMENT (Filed With SEC on October 30, 2008)

Amendment No. 1 to Rights Agreement (Filed With SEC on October 30, 2008)

SECURITIES PURCHASE AGREEMENT (Filed With SEC on October 30, 2008)

COMMON STOCK PURCHASE WARRANT (Filed With SEC on October 30, 2008)

REGISTRATION RIGHTS AGREEMENT (Filed With SEC on October 30, 2008)

AVALONRX LICENSE AGREEMENT (Filed With SEC on October 30, 2008)

AVALON PHARMACEUTICALS, INC. (Filed With SEC on October 30, 2008)

FORM OF TERM NOTE $3,000,000 October 27, 2008 (Filed With SEC on October 30, 2008)

INTELLECTUAL PROPERTY SECURITY AGREEMENT (Filed With SEC on October 30, 2008)

SEVERANCE AGREEMENT AND RELEASE (Filed With SEC on May 8, 2008)

Fourth Addendum to Consulting Agreement Dated February 1, 2000 (Filed With SEC on March 31, 2008)

Fifth Addendum to Consulting Agreement Dated February 1, 2000 (Filed With SEC on March 31, 2008)

Amendment No. 6 to CONSULTING AGREEMENT By and Between Avalon Pharmaceuticals, Inc. and Bradley G. Lorimier (Filed With SEC on March 31, 2008)

THIRD MODIFICATION AGREEMENT (Filed With SEC on March 31, 2008)

FOURTH MODIFICATION AGREEMENT (Filed With SEC on February 15, 2008)

AVALON PHARMACEUTICALS, INC. 2005 OMNIBUS LONG-TERM INCENTIVE PLAN TABLE OF CONTENTS (Filed With SEC on June 7, 2007)

PURCHASE AGREEMENT (Filed With SEC on May 29, 2007)

REGISTRATION RIGHTS AGREEMENT (Filed With SEC on May 29, 2007)

AVALON PHARMACEUTICALS, INC. WARRANT (Filed With SEC on May 29, 2007)

PURCHASE AGREEMENT (Filed With SEC on May 14, 2007)

REGISTRATION RIGHTS AGREEMENT (Filed With SEC on May 14, 2007)

EXCLUSIVE LICENSE AND RESEARCH COLLABORATION AGREEMENT by and between MERCK & CO., INC. and AVALON PHARMACEUTICALS, INC. (Filed With SEC on May 14, 2007)

[LETTERHEAD] [LOGO] May 2, 2007 (Filed With SEC on May 4, 2007)

[LETTERHEAD] [LOGO] (Filed With SEC on May 4, 2007)

RIGHTS AGREEMENT Dated as of April 26, 2007 between AVALON PHARMACEUTICALS, INC. and AMERICAN STOCK TRANSFER & TRUST COMPANY 1 TABLE OF CONTENTS (Filed With SEC on April 30, 2007)

Exhibit 10.6B (Filed With SEC on March 30, 2007)

Exhibit 10.7B (Filed With SEC on March 30, 2007)

Exhibit 10.8B (Filed With SEC on March 30, 2007)

Exhibit 10.9B (Filed With SEC on March 30, 2007)

Exhibit 10.10 (B) (Filed With SEC on March 30, 2007)

Exhibit 10.11B (Filed With SEC on March 30, 2007)

risks relating to the early stage of product candidates under development (Filed With SEC on March 30, 2007)

COLLABORATION AGREEMENT between AVALON PHARMACEUTICALS, INC. and CHEMDIV, INC. (Filed With SEC on November 8, 2006)

FIRST AMENDMENT TO COLLABORATION AGREEMENT (Filed With SEC on November 8, 2006)

Exhibit 10.1 (Filed With SEC on August 2, 2006)

Fourth Addendum to Consulting Agreement Dated February 1, 2000 (Filed With SEC on April 7, 2006)

Exhibit 10.1 PURCHASE AGREEMENT (Filed With SEC on March 3, 2006)

Exhibit 10.2 REGISTRATION RIGHTS AGREEMENT (Filed With SEC on March 3, 2006)

Exhibit 10.1 Stock Election Policy for Non-Employee Director Fees (Filed With SEC on December 5, 2005)

AVALON PHARMACEUTICALS, INC. 2005 OMNIBUS LONG-TERM INCENTIVE PLAN INCENTIVE STOCK OPTION AGREEMENT (Filed With SEC on November 1, 2005)

AVALON PHARMACEUTICALS, INC. 2005 OMNIBUS LONG-TERM INCENTIVE PLAN NONQUALIFIED STOCK OPTION AGREEMENT (Filed With SEC on November 1, 2005)

Pilot Study Agreement (Filed With SEC on September 14, 2005)

[2,750,000] Shares AVALON PHARMACEUTICALS, INC. Common Stock UNDERWRITING AGREEMENT (Filed With SEC on September 9, 2005)

Avalon Pharmaceuticals, Inc. (Filed With SEC on September 9, 2005)

LICENSE, DEVELOPMENT AND COMMERCIALIZATION AGREEMENT between Vertex Pharmaceuticals Incorporated and Avalon Pharmaceuticals, Inc. (Filed With SEC on September 9, 2005)

COLLABORATION AND LICENSE AGREEMENT (Filed With SEC on September 9, 2005)

COLLABORATION AGREEMENT (Filed With SEC on September 9, 2005)

EXECUTION COPY CONFIDENTIAL COLLABORATION AND LICENSE AGREEMENT (Filed With SEC on September 9, 2005)

AVALON PHARMACEUTICALS, INC. AMENDED AND RESTATED LINE OF CREDIT AGREEMENT (Filed With SEC on September 9, 2005)

AMENDED AND RESTATED MODIFICATION AND CONSENT AGREEMENT (Filed With SEC on August 18, 2005)

SECOND MODIFICATION AGREEMENT (Filed With SEC on August 18, 2005)

AVALON PHARMACEUTICALS INC. 2005 OMNIBUS LONG-TERM INCENTIVE PLAN (Filed With SEC on August 18, 2005)

develop our anticancer therapeutic candidates (Filed With SEC on June 23, 2005)

develop our anticancer therapeutic candidates (Filed With SEC on May 3, 2005)

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AVALON PHARMACEUTICALS INC Contracts & Agreements