Cara Therapeutics Inc. filed SEC Form 8-K: Completion of Acquisition or Disposition of Assets, Entry into a Material Definitive Agreement, Leadership Update, Financial Statements and Exhibits, Material Modification to Rights of Security Holders, Changes in Control of Registrant, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics, Change in Shell Company Status, Regulation FD Disclosure, Other Events