Citadel Entities and Kenneth Griffin's Ownership in Inspire Medical Systems

This Schedule 13G filing reports the beneficial ownership of shares in Inspire Medical Systems, Inc. by Citadel Advisors LLC, Citadel Advisors Holdings LP, Citadel GP LLC, Citadel Securities LLC, Citadel Securities Group LP, Citadel Securities GP LLC, and Kenneth Griffin. The filing indicates that Citadel Advisors LLC, Citadel Advisors Holdings LP, and Citadel GP LLC each beneficially own 1,379,861 shares, representing 4.7% of the outstanding shares. Citadel Securities LLC owns 114,245 shares (0.4%), while Citadel Securities Group LP and Citadel Securities GP LLC each own 333,181 shares (1.1%). Kenneth Griffin beneficially owns 1,713,042 shares, representing 5.8% of the outstanding shares. The filing is made pursuant to Rule 13d-1(c) under the Securities Exchange Act of 1934, and the reporting persons certify that the shares were not acquired for the purpose of influencing control of the issuer.