definiens: means the occurrence of any of the following, directly or indirectly, in one transaction orin a series of transactions : ( a ) any direct or indirect acquisition of Partner ( or any Affiliate of Partner that ControlsPartner ) by means of merger, consolidation, purchase, exchange or contribution of securities, or other means ; ( b ) anyother consolidation or merger of Partner ( or any Affiliate of Partner that Controls Partner ) with or into any other Person;(c ) the sale, transfer, assignment, or other disposition of securities of Partner ( or any Affiliate of Partner that ControlsPartner ) representing a majority of the voting power of Partner ’s outstanding voting securities or a majority of thevoting power of the outstanding voting securities of any Affiliate of Partner that Controls Partner ; ( d ) any othertransaction(s ) in which the holders of the outstanding securities of Partner immediately before such transaction donot, immediately after such transaction(s ), retain Control of Partner, or any other transaction(s ) in which the holders ofthe outstanding securities of any Affiliate that Controls Partner immediately before such transaction do not, immediately after such transaction(s ), retain Control of such Affiliate ; or ( e ) the direct or indirect sale, transfer, assignment, or other disposition of all or substantially all of the business or assets of Partner to which this Agreementrelates.1Confidential means an IVD Test Kit for assessment and monitoring of minimal residual diseasein connection with treatment or management of patients with lymphoid malignancies, which is currently expected to bemarketed under Partner ’s clonoSEQ ® brand ( but may be marketed under an alternative brand as specified in theDevelopment Plan )