definiens: means, collectively, that certain : ( a ) Common Stock Purchase Warrant No . 2016 - 1 datedApril 8, 2016, issued by the Company to Tullis Growth Fund, L.P. ; ( b ) Common Stock Purchase Warrant No . 2016 - 2dated April 8, 2016, issued by the Company to Tullis - Dickerson Capital Focus III, L.P. ; ( c ) Common Stock PurchaseWarrant No . 2016 - 3 dated April 8, 2016, issued by the Company to Lighthouse Holdings Corporation ; ( d ) CommonStock Purchase Warrant No . 2016 - 4 dated June 2016, issued by the Company to Tullis Growth Fund, L.P. ; and(e ) Common Stock Purchase Warrant No . 2016 - 5 dated June 30, 2016, issued by the Company to LighthouseHoldings Corporation