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The vesting commencement date is September 20, 2018."}],"balance_after":50000,"derivative":{"exercise_price":30.93,"expiration_date":"2028-09-19","underlying":"Class A Common Shares","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001104659-18-058109","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1730430/000110465918058109/a4.xml","form_type":"4"}},{"id":3915648,"issuer":{"id":1954,"kind":"organization","name":"Kiniksa Pharmaceuticals International, plc","symbol":"KNSA"},"owners":[{"id":61971,"kind":"person","name":"Mahoney Stephen F.","position":1,"cik":"0001741389","reported_name":"Mahoney Stephen F.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President & COO"}}],"security":"Class B Common 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closing of the Issuer's initial public offering, the preferred shares automatically converted into the Issuer's Class A Common Shares on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Upon closing of the Issuer's initial public offering, the preferred shares automatically converted into the Issuer's Class A Common Shares on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Upon closing of the Issuer's initial public offering, the preferred shares automatically converted into the Issuer's Class A Common Shares on a one-for-one basis."}],"balance_after":0,"derivative":{"underlying":"Class A Common 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