Type	Name	Date
Indenture	Indenture, between the Company and Wilmington Trust, National Association, as trustee, including the form of 0.75% Convertible Senior Notes due 2019	08/18/2014

Type	Name	Date
Merger agreement	Agreement and Plan of Merger, by and among Pfenex, Inc., Ligand Pharmaceuticals Incorporated and Pelican Acquisition Sub, Inc	08/11/2020
Acquisition / asset purchase agreement	Purchase and Sale Agreement, between Ligand Pharmaceuticals Incorporated and the Genaera Liquidating Trust	05/24/2010
Merger agreement	Agreement and Plan of Merger, by and among Ligand Pharmaceuticals Incorporated, Neurogen Corporation, and Neon Signal, LLC	08/24/2009

Type	Name	Date
Lease agreement	Lease, between Ligand Pharmaceuticals Incorporated and 3911/3931 SVB, LLC	11/10/2015
Lease agreement	Lease Agreement, between Ligand Pharmaceuticals Incorporated and ARE-SD Region No. 24, LLC	09/09/2011