Crispr Therapeutics AG is a Switzerland-based gene-editing company. The Company focuses on the development of transformative gene-based medicines for serious diseases using its Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 gene-editing platform. CRISPR/Cas9 can be programmed to cut, edit and correct disease-associated deoxyribonucleic acid (DNA) in a patient’s cell. The location at which the Cas9 molecular scissors cut the DNA to be edited is specified by guide ribonucleic acid (RNA), which is comprised of a crRNA component and a tracrRNA component, either individually or combined together as a single guide RNA. The Company has business operations in London, the United Kingdom, as well as research and development operations in Cambridge, the United States.