Exhibit 99.1 AnnualReport2023 Disclaimer PDF print – this document is only a "printed version" and is not the original annual financial reporting including the audited financial statements pursuant to A These original annual financial reporting included in the audited financial statements and the auditor's report thereto, are included in the single report package which can be found at https://www.argenx.com/investors/financial-reports 2023 Annual Report including the Annual Financial Statements for the year ...

argenx SE (NASDAQ:ARGX) Q4 2023 Results Conference Call February 29, 2024 8:30 AM ET Company Participants Beth DelGiacco - VP and Global Head, Corporate Communications and Investor Relations Tim Van Hauwermeiren - Chief Executive Officer Karl Gubitz - Chief Financial Officer Karen Massey - Chief Operating Officer Conference Call Participants Tazeen Ahmad - Bank of America Derek Archila - Wells Fargo Rajan Sharma - Goldman Sachs Yatin Suneja - Guggenheim Yaron Werber - TD Cowen Allison Bratzel - Piper Sandle ...

argenx SE (NASDAQ:ARGX) Q3 2023 Earnings Conference Call October 31, 2023 8:30 AM ET Company Participants Beth DelGiacco - VP and Global Head, Corporate Communications and IR Tim Van Hauwermeiren - CEO Karl Gubitz - CFO Karen Massey - COO Conference Call Participants Yatin Suneja - Guggenheim Partners Tazeen Ahmad - Bank of America Derek Archila - Wells Fargo Thomas Smith - Leerink Partners James Gordon - JPMorgan Amy Li - Jefferies Danielle Brill - Raymond James Yaron Werber - TD Cowen Myles Minter - Willi ...

argenx SE (NASDAQ:ARGX) Q2 2023 Earnings Conference Call July 27, 2023 8:30 AM ET Company Participants Beth DelGiacco - VP and Global Head, Corporate Communications & IR Tim Van Hauwermeiren - CEO & Executive Director Karl Gubitz - CFO Karen Massey - COO Conference Call Participants Tazeen Ahmad - Bank of America Merrill Lynch Derek Archila - Wells Fargo Securities Yaron Werber - TD Cowen Danielle Brill - Raymond James & Associates Amy Li - Jefferies Xian Deng - UBS Joon Lee - Truist Securities Samantha Sem ...

Half Year 2023 Financial Results and Second Quarter Business Update Forward Looking Statements This presentation has been prepared by argenx se (“argenx” or the “company”) for informational purposes only and not for any other purpose. Nothing contained in this presentation is, or should be construed as, a recommendation, promise or representation by the presenter or the company or any director, employee, agent, or adviser of the company. This presentation does not purport to be all-inclusive or to contain a ...

Exhibit 99.1 argenx and Zai Lab Announce Approval of VYVGART® (efgartigimod alfa injection) for Generalized Myasthenia Gravis in China ● First-and-only approved FcRn antagonist for gMG patients by NMPA ● 68% of anti-AChR antibody positive gMG patients treated with VYVGART were responders (n=44/65) on the Myasthenia Gravis Activities of Daily Living (MG-ADL) scale compared with 30% of patients treated with placebo (n=19/64) (p<0.0001) during the first treatment cycle in the Phase 3 ADAPT trial ● Zai Lab to s ...

Exhibit 99.2 argenx Announces U.S. Food and Drug Administration Approval of VYVGART Hytrulo (efgartigimod alfa and hyaluronidase-qvfc) Injection for Subcutaneous Use in Generalized Myasthenia Gravis Regulated Information/Inside Information Amsterdam, the Netherlands—June 20, 2023—argenx SE (Euronext & Nasdaq: ARGX), a global immunology company committed to improving the lives of people suffering from severe autoimmune diseases, today announced that the U.S. Food and Drug Administration (FDA) approved VYVGAR ...

argenx SE (NASDAQ:ARGX) Q1 2023 Earnings Conference Call May 4, 2023 8:30 AM ET Company Participants Beth DelGiacco - Vice President of Corporate Communications and Investor Relations Tim Van Hauwermeiren - Chief Executive Officer Karl Gubitz - Chief Financial Officer Karen Massey - Chief Operating Officer Conference Call Participants Derek Archila - Wells Fargo Tazeen Ahmad - Bank of America Rajan Sharma - Goldman Sachs Yatin Suneja - Guggenheim Akash Tewari - Jefferies Thomas Smith - SVB Security Danielle ...

First Quarter 2023 Financial Results and Business Update May 4, 2023 Forward Looking Statements This presentation has been prepared by argenx se ("argenx" or the "company") for informational purposes only and not for any other purpose. Nothing contained in this presentation is, or should be construed as, a recommendation, promise or representation by the presenter or the company or any director, employee, agent, or adviser of the company. This presentation does not purport to be all-inclusive or to contain ...

argenx • Together We Discover Corporate Presentation April 2023 Forward Looking Statements This presentation has been prepared by argenx se ("argenx" or the "company") for informational purposes only and not for any other purpose. Nothing contained in this presentation is, or should be construed as, a recommendation, promise or representation by the presenter or the company or any director, employee, agent, or adviser of the company. This presentation does not purport to be all-inclusive or to contain all o ...