Kiniksa Pharmaceuticals International, plc

We have adopted a written Code of Business Conduct and Ethics that applies to our directors, officers and employees, including our principal executive officer, principal financial officer, principal accounting officer and controller, or persons performing similar functions. We have posted a current copy of the code in the “Corporate Governance” section of the “Investors” page of our website located atwww.kiniksa.com. In addition, we intend to post on our website all disclosures that are required by law or the rules of Nasdaq concerning any amendments to, or waivers from, any provision of the code.

The information contained on our website is not incorporated by reference into this proxy statement, and you should not consider any information contained on, or that can be accessed through, our website as part of this proxy statement.