wienerberger – Claus Ehrenbeck joins wienerberger as Senior Vice President of Investor Relations

September 15, 2026

Vienna – On September 15, 2026, Claus Ehrenbeck will take over the management of the IR department of Wienerberger AG as Senior Vice President of Investor Relations.

In this role, he will succeed Therese Jandér and will be responsible for wienerberger’s investor relations activities and capital market communications, a leading provider of innovative, sustainable solutions for the entire building envelope, in the fields of new build and renovation, as well as for infrastructure in water and energy management. Claus Ehrenbeck reports directly to Dagmar Steinert, CFO of wienerberger.

“Earning and maintaining the trust of our investors and stakeholders is essential to advancing our long-term value-creating growth strategy. Claus Ehrenbeck brings a proven track record in Investor Relations and a broad international experience that will be invaluable in deepening our dialogue with the global capital markets.”

Gerhard Hanke

Interim CEO wienerberger

Claus Ehrenbeck brings in a wealth of experience in investor relations and capital markets. He completed his Master of Science in Chemistry at the Heidelberg University and earned his Ph.D in Physical Chemistry from the University (TH) of Karlsruhe in 1995. He began his career as equity analyst at HypoVereinsbank AG in Munich before joining the DVFA GmbH in Frankfurt, where he was responsible for investor relations support and consulting for listed companies. In 1998, Ehrenbeck joined AIXTRON AG in Aachen as Head of Investor Relations and Corporate Communications. Following a brief period as Head of Investor Relations at HOCHTIEF AG in Essen, he assumed the same role at thyssenkrupp AG in 2006, where he spent nearly 20 years. Since 2025, Ehrenbeck has worked as an independent consultant, advising and coaching senior management teams on IPOs and investor relations.

As wienerberger’s new Senior Vice President of Investor Relations, Ehrenbeck brings extensive expertise to the company and will further strengthen its engagement with international capital markets.

Sourcewienerberger

EMR Analysis

More information on wienerberger AG: See the full profile on EMR Executive Services

More information on Gerhard Hanke (Chief Operating Officer, Central & East, wienerberger AG + Deputy Chairman of the Managing Board, wienerberger AG + Interim Chief Executive Officer, wienerberger): See the full profile on EMR Executive Services

More information on Dagmar Steinert (Chief Financial Officer, wienerberger AG): See the full profile on EMR Executive Services

More information on Dr. Claus Ehrenbeck (Senior Vice President, Investor Relations, wienerberger AG): See the full profile on EMR Executive Services

More information on Harald Schwarzmayr (Chief Operating Officer, Europe West, wienerberger AG + Chief Executive Officer, Pipelife, wienerberger): See the full profile on EMR Executive Services

More information on Pipelife by wienerberger: See the full profile on EMR Executive Services

More information on UniCredit: https://www.unicreditgroup.eu/en.html + UniCredit is a pan-European Commercial Bank with a unique service offering in Italy, Germany, Austria, Central and Eastern Europe. Our purpose is to empower communities to progress, delivering the best-in-class for all stakeholders, unlocking the potential of our clients and our people across Europe.

More information on Andrea Orcel (Group Chief Executive Officer, UniCredit + Head of Italy, UniCredit + Chairman, UniCredit Foundation, UniCredit + Chairman, HypoVereinsbank, UniCredit + Chairman, UniCredit Bank GmbH, UniCredit): https://www.unicreditgroup.eu/en/governance/management.htm + https://www.linkedin.com/in/andrea-orcel/

More information on HypoVereinsbank AG by UniCredit: https://www.hypovereinsbank.de/hvb/privatkunden + HypoVereinsbank is part of UniCredit, a leading pan-European commercial bank offering first-class solutions and services in Italy, Germany, Austria and Central and Eastern Europe.

Our group-wide vision is to be the bank for Europe’s future. Our mission is: Empower Communities to Progress. This includes offering all stakeholders first-class products and services, thereby unlocking the potential of our customers and employees across Europe.

We serve more than 20 million customers, supported by three group-wide product areas – Corporate, Individual, and Payment Solutions – which enable us to provide first-class expertise and scalable solutions in all our markets. Our integrated business model combines local proximity and a deep understanding of our customers with the strengths of an international group and thereby creates seamlessly integrated services and an excellent customer experience.

Digitalization, operational excellence, and a strong commitment to ESG principles form the foundation of our actions and enable us to create sustainable added value for customers, communities, employees, and shareholders.

More information on Marion Höllinger (Spokesperson of the Management Board (Chief Executive Officer) and Head of Client Solutions (Interim), HypoVereinsbank AG, UniCredit): https://www.hypovereinsbank.de/hvb/ueber-uns/das-unternehmen/management + https://www.unicreditgroup.eu/en/governance/management.html + https://www.linkedin.com/in/marion-h%C3%B6llinger/

More information on DVFA GmbH: https://dvfa.de/ + The DVFA e. V. is the professional association for all investment professionals in the German financial and capital markets, with approximately 1,500 members. The association is committed to ensuring professional standards within the investment profession and promotes the next generation of finance professionals, particularly through the DVFA Academy. It participates in regulatory processes and political discussions through various commissions and committees. The DVFA e. V. is also a member of several international networks and professional associations.

More information on Thorsten K. G. Müller (Chairman, Lighthouse Corporate Finance GmbH + Co-Head, DVFA Commission on Financial and Capital Markets, DVFA GmbH): https://dvfa.de/ueber-uns/wer-wir-sind/ + https://www.linkedin.com/in/thorsten-k-g-m%C3%BCller-54146a64/

More information on Ingo R. Mainert (Deputy Chairman, Allianz Global Investors GmbH + Co-Head, DVFA Commission on Financial and Capital Markets, DVFA GmbH): https://dvfa.de/ueber-uns/wer-wir-sind/

More information on AIXTRON AG: https://www.aixtron.com/ + AIXTRON SE (FSE: AIXA, ISIN DE000A0WMPJ6) is a leading provider of deposition equipment to the semiconductor industry. The company was founded in 1983 and is headquartered in Herzogenrath (near Aachen), Germany, with subsidiaries and sales offices in Asia, Europe, and the United States. Its technology solutions are used by a diverse range of customers worldwide to build advanced components for electronic and optoelectronic applications based on compound semiconductor materials. These components are used in a variety of innovative applications, technologies and industries. These include laser and LED applications, display technologies, data transmission, SiC and GaN power management and conversion, communication, signaling and lighting as well as many other leading-edge applications.

Our registered trademarks: AIXACT®, AIX-Multi-Ject®, AIXTRON®, Close Coupled Showerhead®, EXP®, EPISON®, Gas Foil Rotation®, HXP®, HYPERION®, Multi-Ject®, Planetary Reactor®, PVPD®, STExS®, TriJet®.

More information on Dr. Felix J. Grawert (Chairman of the Executive Board (Chief Executive Officer and President), AIXTRON AG): https://www.aixtron.com/en/company/management/executive-board + https://www.linkedin.com/in/felix-grawert-21864672/

More information on HOCHTIEF AG: https://www.hochtief.de/ + HOCHTIEF is an engineering-led global infrastructure solutions provider with leading positions in North America, Australia and Europe and a rapidly expanding presence in high-tech, energy transition and sustainable infrastructure markets.

More information on Juan Santamaría Cases (Chairman of the Executive Board, HOCHTIEF AG): https://www.hochtief.com/about-hochtief/executive-board + https://www.linkedin.com/in/juan-santamaria-b578217/

More information on thyssenkrupp AG: https://www.thyssenkrupp.com/en/home + thyssenkrupp is an international industrial and technology group with more than 93,000 employees. In the fiscal year 2024/2025, the company generated sales of around €33 billion in 48 countries.

Around 3,900 employees work in research and development worldwide. They are mainly focused on climate protection and the energy transition, the digital transformation in industry and the mobility of the future. The patent portfolio of thyssenkrupp currently includes approximately 17,000 patents and utility models, underlining the Group’s leading position in technology and innovation.

As a publicly listed company, thyssenkrupp is part of the MDAX index. thyssenkrupp shares are traded on the Frankfurt Stock Exchange (ticker symbol: TKA) and as American depositary receipts (ticker symbol: TKAMY) in the USA. Since 20 October 2025, TKMS (Marine Systems segment) has also been an independent, publicly traded company in which thyssenkrupp AG holds a majority stake of 51 per cent; TKMS shares are also listed on the MDAX and traded on the Frankfurt Stock Exchange (ticker symbol: TKMS).

More information on Miguel Ángel López Borrego (Chief Executive Officer, thyssenkrupp): https://www.thyssenkrupp.com/en/company/management/executive-board + https://www.linkedin.com/in/miguel-angel-lopez-borrego/

EMR Additional Notes:

Main Academic Degrees and Professional Credentials:
- Undergraduate Degrees & Certificates:
  - Vocational and Technical Certificates (typically 6 Months to 2 Years): Career-focused credentials providing practical, hands-on training for specific occupations or technical fields. They can prepare individuals for specialized roles such as welding, automotive repair, electrical work, healthcare support, or information technology. Duration varies considerably depending on the program and country.
  - Associate Degrees (AA / AS / AAS – typically 2 Years): Undergraduate degrees generally offered by community colleges, junior colleges, and technical institutions. They can provide preparation for direct entry into technical or professional occupations or serve as the first stage toward a bachelor’s degree.
    - AA: Associate of Arts
    - AS: Associate of Science
    - AAS: Associate of Applied Science
  - BA (Bachelor of Arts): An undergraduate academic degree typically emphasizing humanities, social sciences, languages, arts, and related disciplines. BA programs generally develop communication, critical thinking, research, and analytical skills. The structure and requirements vary by institution and country.
  - BS (Bachelor of Science): An undergraduate academic degree typically focused on scientific, technical, quantitative, and analytical disciplines, including STEM fields. Programs may include laboratory work, mathematics, computing, and practical applications. The distinction between a BA and BS/BSc is not universal and depends on the institution and country.
- Postgraduate & Professional Degrees:
  - MA (Master of Arts): A postgraduate academic degree typically awarded in humanities, social sciences, languages, communication, history, literature, and related disciplines. MA programs build on bachelor’s-level education and generally emphasize advanced knowledge, research, critical thinking, and analysis. They commonly take one to two years, depending on the country and program.
  - MS / MSc (Master of Science): A postgraduate degree typically focused on scientific, technical, quantitative, and analytical disciplines. Programs may include advanced coursework, laboratory or applied research, a thesis, dissertation, or capstone project. Common fields include engineering, computer science, data science, biology, mathematics, finance, and healthcare.
  - MBA (Master of Business Administration): A postgraduate professional degree focused on business management, leadership, and organizational decision-making. Typical subjects include strategy, finance, marketing, accounting, operations, entrepreneurship, and leadership. An MBA is generally designed to develop broad management capabilities and is commonly pursued by professionals seeking management roles, career transitions, or entrepreneurial opportunities.
  - PhD (Doctor of Philosophy): A doctoral research degree representing the highest level of academic qualification commonly awarded by universities. Despite its name, a PhD is not limited to philosophy and can be awarded in almost any academic discipline. It normally involves advanced study, original research, and the preparation and defense of a doctoral thesis or dissertation. A PhD can prepare graduates for academic, research, and highly specialized professional careers, but holding a PhD does not automatically qualify someone to teach at a university; requirements vary by country, institution, and position.
- Professional Certifications & Designations:
  - CFA® (Chartered Financial Analyst®): A globally recognized professional designation awarded by the CFA Institute to investment professionals who meet its examination, professional-experience, and membership requirements.
    - The CFA Program consists of three levels of examinations and covers areas including investment analysis, portfolio management, financial reporting, economics, valuation, and professional ethics.
    - The CFA charter is particularly relevant to careers in investment management, portfolio management, equity research, and financial analysis.

IPO (Initial Public Offering):
- When a privately held company offers its shares to the public for the first time, the process is known as an Initial Public Offering (IPO). An IPO typically involves the company issuing new shares to raise capital, existing shareholders selling shares, or a combination of both. In essence, an IPO marks a transition from private ownership to a company whose shares are publicly traded and can be bought and sold by public investors. For that reason, the IPO process is sometimes referred to as “going public,” although “going public” more broadly refers to the overall process of becoming a publicly traded company.