Siegfried AG / CH1429326825

Media Release
Zofingen, September 26, 2025 Ad hoc announcement pursuant to Art. 53 Listing Rules

Dr. Andreas Casutt (1963) has been a member of the Board of Directors of Siegfried Holding AG (SIX: SFZN) since 2010 and its Chairman since 2014. The attorney and partner at the Zurich law firm Niederer Kraft Frey AG has decided not to stand for re-election at the Annual General Meeting on April 16, 2026.  Andreas Casutt, Chairman of the Board of Directors: “Even after 16 years on Siegfried’s Board of Directors, this decision is not an easy one for me. But the timing for a change in the chairmanship is right. Siegfried is best positioned today to continue its successful journey of growth.”   Martin Schmid, Vice Chairman of the Board of Directors: “Andreas has significantly shaped our company over the past years. Under his leadership, Siegfried developed into a successful, global CDMO. His personal contribution to Siegfried’s ongoing success is substantial.” The Board of Directors will propose to the 2026 Annual General Meeting that Dr. Beat Walti (1968) be elected the new Chairman of the Board of Directors. Beat Walti was elected to the Board of Directors of Siegfried Holding in 2022. The attorney chairs the Board of Trustees of the Ernst Göhner Foundation, Siegfried’s largest shareholder, holds board mandates at the Danish company DSV A/S and, as Chairman, at the Zurich-based trading company Rahn AG. In addition, he has been a member of the Swiss National Council since 2014, where he serves on the Economic Affairs and Taxation Committee. Andreas Casutt: “Beat has many years of experience on the governing bodies of companies and foundations in Switzerland as well as internationally. In recent years, he has made significant contributions to Siegfried's development as a member of our Board of Directors. Together with the Board and the Executive Committee, he will actively drive forward the expansion of our company’s market position in the years ahead.”

Andreas Casutt, who has chaired the Board of Directors of Siegfried Holding since 2014, will step down at the 2026 Annual General Meeting The Board of Directors proposes Beat Walti as the new Chairman

About Siegfried

The Siegfried Group is a global life sciences company with sites in Switzerland, Germany, Spain, France, Malta, the USA and China. In 2024, the company achieved sales of CHF 1.295 billion and employed on 31.12.2024 more than 3,800 people at thirteen sites on three continents. Siegfried Holding AG is publicly listed on SIX Swiss Exchange (SIX: SFZN).  Siegfried is active in manufacturing pharmaceutical APIs (and their intermediates) as well as drug products (tablets, capsules, sterile vials, ampoules, cartridges and ointments) for the pharmaceutical industry and provides development services.



Cautionary statements regarding forward-looking statements

This media release includes statements concerning the future. They are based on assumptions and expectations that may prove to be wrong. They should be considered with due caution as, by definition, they contain known and unknown risks, insecurities and other factors which could result in a difference in the actual results, financial situation, developments or the success of Siegfried Holding AG or Siegfried Group from the explicit or implicit assumptions made in these statements.

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  Siegfried AG
Untere Brühlstrasse 4
4800 Zofingen, Switzerland

+41 62 746 11 11
info@siegfried.ch
www.siegfried.ch