Press Releases

• Exelixis has exclusive license to panel of monoclonal antibodies against an undisclosed oncology target for biologics applications, leveraging WuXi Biologics integrated technology platforms
• In addition to a modest upfront payment, WuXi Biologics is eligible for potential milestones and royalties on net sales of potential products

SHANGHAI and ALAMEDA, Calif. March 8, 2021 –WuXi Biologics (“WuXi Bio”) (2269.HK), a global company with leading open-access biologics technology platforms, and Exelixis, Inc. (Nasdaq: EXEL) today announced the companies have entered into an exclusive license agreement to support the continued expansion of Exelixis’ oncology biologics pipeline. The agreement is the latest in a series of biologics-focused transactions for Exelixis as the company builds out its pipeline behind CABOMETYX® (cabozantinib), its flagship product and global oncology franchise, which received its fourth approval from the U.S. Food and Drug Administration in January.

Under the terms of the agreement, Exelixis will make a modest upfront payment to WuXi Bio in exchange for an exclusive license to a panel of monoclonal antibodies to a preclinically validated target, discovered based on WuXi Biologics integrated technology platforms, for the development of antibody-drug conjugate, bispecific, and certain other novel tumor-targeting biologics applications. WuXi Bio will be eligible for development and commercialization milestones, as well as tiered royalties on net sales of any potential products commercialized from the panel.

“Exelixis is pursuing a broad range of targets and therapeutic modalities to maximize the potential of our biologics pipeline to help patients with cancer,” said Peter Lamb, Ph.D., Executive Vice President, Scientific Strategy and Chief Scientific Officer of Exelixis. “Our agreement with WuXi Bio enhances our growing biotherapeutics portfolio by providing an approach to a preclinically validated target that has already shown early clinical potential in cancer. We’re looking forward to building on WuXi Bio’s significant technical foundation and applying our own expertise as we bring this promising program into the Exelixis discovery organization.”

“We’re glad to support Exelixis’ growing biotherapeutics pipeline with antibodies discovered through our integrated biologics technology platform,” said Dr. Chris Chen, Chief Executive Officer of WuXi Biologics. “WuXi Biologics will continue to develop globally leading next-generation technologies to accelerate and transform biologics discovery, development and manufacturing. With globally recognized technical capabilities and unparalleled capacities, we are transforming how biologics are developed in the global setting.”

About Exelixis
Founded in 1994, Exelixis, Inc. (Nasdaq: EXEL) is a commercially successful, oncology-focused biotechnology company that strives to accelerate the discovery, development and commercialization of new medicines for difficult-to-treat cancers. Following early work in model system genetics, we established a broad drug discovery and development platform that has served as the foundation for our continued efforts to bring new cancer therapies to patients in need. Our discovery efforts have resulted in four commercially available products, CABOMETYX® (cabozantinib), COMETRIQ® (cabozantinib), COTELLIC® (cobimetinib) and MINNEBRO® (esaxerenone), and we have entered into partnerships with leading pharmaceutical companies to bring these important medicines to patients worldwide. Supported by revenues from our marketed products and collaborations, we are committed to prudently reinvesting in our business to maximize the potential of our pipeline. We are supplementing our existing therapeutic assets with targeted business development activities and internal drug discovery — all to deliver the next generation of Exelixis medicines and help patients recover stronger and live longer. Exelixis is a member of the Standard & Poor’s (S&P) MidCap 400 index, which measures the performance of profitable mid-sized companies. In November 2020, the company was named to Fortune’s 100 Fastest-Growing Companies list for the first time, ranking 17th overall and the third-highest biopharmaceutical company. For more information about Exelixis, please visit www.exelixis.com, follow @ExelixisInc on Twitter or like Exelixis, Inc. on Facebook.

About WuXi Biologics
WuXi Biologics (stock code: 2269.HK), a Hong Kong-listed company, is a leading global open-access biologics technology platform offering end-to-end solutions to empower organizations to discover, develop, and manufacture biologics from concept to commercial manufacturing. The company’s history and achievements demonstrate its commitment to providing a truly one-stop service offering and strong value proposition to its global clients. As of June 30, 2020, there were a total of 286 integrated projects, including 141 projects in pre-clinical development stage, 125 projects in early-phase (phase I and II) clinical development, 19 projects in late-phase (phase III) development and one project in commercial manufacturing. With total estimated capacity for biopharmaceutical production planned in China, Ireland, the U.S., Germany, and Singapore exceeding 300,000 liters after 2023, WuXi Biologics will provide its biomanufacturing partners with a robust and premier-quality global supply chain network. For more information about WuXi Biologics, please visit: www.wuxibiologics.com.

Contacts

For Exelixis
Investors
Susan Hubbard
Executive Vice President,
Public Affairs & Investor Relations
(650) 837-8194
shubbard@exelixis.com

Media
Hal Mackins
For Exelixis, Inc.
(415) 994-0040
hal@torchcommunications.com

For WuXi Biologics
Investors
IR@wuxibiologics.com

Media
PR@wuxibiologics.com