HOWMEDICA OSTEONICS CORP. CONFORMIS, INC. By: /s/ Spencer Stiles By: /s/ Mark A. Augusti Name: Spencer Stiles Name: Mark A. Augusti Title: President Title: President and CEO Date: September 26, 2019 Date: 9-30-2019 [Signature Page to Development Agreement] Source: CONFORMIS INC, 10-Q, 11/1/2019 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. Source: CONFORMIS INC, 10-Q, 11/1/2019