Execution Version Certain identified information has been excluded from the exhibit because it is both (i) not material and (ii) would likely cause competitive harm to the Company, if publicly disclosed. Double asterisks denote omissions. DEVELOPMENT AGREEMENT This Development Agreement ("this Agreement") is entered into and effective as of September 30, 2019 ("Effective Date") by and between Howmedica Osteonics Corp., a New Jersey corporation, also known as Stryker Orthopaedics ("Stryker"), and Conformis, Inc., a Delaware corporation having a principal place of business located at 600 Technology Park Drive, Billerica, MA 01821 ("Conformis"). Stryker and Conformis are collectively referred to herein as the "Parties" and individually as a "Party." WHEREAS, the Parties are concurrently entering into an asset purchase agreement for Stryker's purchase of certain Conformis assets concerning Patient-Specific Instrumentation ("Asset Purchase Agreement"), and a License Agreement, a Distribution Agreement and a Quality Agreement, as defined in and attached to the Asset Purchase Agreement (collectively, such agreements are referred to herein as the "Other Agreements"). WHEREAS, Stryker and its Affiliates have developed and commercialized an Off-The-Shelf Knee Implant offered under the trademark Triathlon. WHEREAS, Conformis currently offers Patient-Specific Instrumentation for use with its Patient-Specific Implants, including partial and total knee and hip arthroplasty. WHEREAS, Stryker desires that Conformis develop, in accordance with the R&D Program, certain Patient-Specific Instrumentation to be used with the current version of the Off-The-Shelf Knee Implant offered under the trademark Triathlon (such Patient-Specific Instrumentation as so developed, the "KIB Product"). THEREFORE, in consideration of the mutual representations, warranties and covenants herein and in the Other Agreements constituting good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Parties hereby agree as follows: ARTICLE I DEFINITIONS 1.1 Definitions. For purposes of this Agreement, the following terms shall have the following meanings, and to the