definiens: of a Party means all Know - How, unpublished patent a pplications and other information and data of a financial, comm ercial, business, operational, technical or other p roprietary nature of such Party that is disclosed by or on beh alf of such Party or any of its Affiliates or other wise made known to the other Party or any of its Affiliates, whethe r disclosed or made known orally, in writing or in electronic form pursuant to this Agreement ; provided that ( x ) all I nventions or Program Know - How will be deemed ( i ) Sy ros ’ Confidential Information prior to the Option Effect i ve Date, and Syros shall be deemed to be the Discl osing Party and GBT shall be deemed to be the Receiving Party w ith respect thereto and ( ii ) the Confidential Infor mation of both Parties following the Option Effective Date, a nd both Parties shall be deemed to be the Receiving Party and the Disclosing Party with respect thereto ; ( y ) all Syros Platform Improvements will be deemed Syros ’ C onfidential Information, and Syros shall be deemed to be the Di sclosing Party and GBT shall be deemed to be the Re ceiving Party with respect thereto ; and ( z ) the terms of th is Agreement will be deemed the Confidential Inform ation of both Parties, and both Parties shall be deemed to b e the Receiving Party and the Disclosing Party with respect thereto