Former CEO and Chairman of the Board of Bayer Pharma AG, Dieter Weinand, Joins Coya's Board of Directors

• Mr. Weinand is the former CEO and Chairman of the Board at Bayer Pharma AG, leading Bayer's fully integrated $20 billion healthcare business
• Mr. Weinand is a seasoned business leader with over 25 years of experience leading business and strategic operations for companies including Bayer, Pfizer, Bristol Myers Squibb, Sanofi, and Otsuka

Coya Therapeutics, Inc. (NASDAQ:COYA) ("Coya" or the "Company"), a clinical-stage biotechnology company developing biologics and cell therapies intended to enhance the function of Regulatory T Cells (Tregs), today announced that it has appointed Mr. Dieter Weinand to its board of directors, effective immediately. Coya will leverage Mr. Weinand's extensive experience, connections, and judgement to guide Coya's strategic discussions and development programs.

"I am delighted to join the board of Coya, a company whose science has the potential to make a significant clinical difference in patients' lives suffering from difficult to treat neurodegenerative diseases, an experienced leadership team that I believe can unlock the full potential of the therapies, and a cohesive board of directors. I look forward to becoming a part of this remarkable company," Mr. Weinand commented.

"Coya has strengthened its DNA with Dieter. Having his counsel, guidance, and network available to Coya at this time will bolster our profile in 'big picture' opportunities including business development and strategic discussions. His selection to join Coya at this point in his career is a validating moment for us," stated Howard Berman, Ph.D, CEO of Coya.

Dieter Weinand is an experienced executive with over 25 years of experience in the pharmaceuticals and biotech industries. Mr. Weinand presently serves as the Chairman of the Board of Directors of Replimune Group Inc. (NASDAQ:REPL), Mnemo Therapeutics, Umoja Biopharma, Inc., Inspirna, Inc., and Ziel Bio, Inc. Previously, Mr. Weinand was Chief Executive Officer and Chairman of the Board of Bayer Pharma AG and member of the Management Board at Bayer AG. Prior to his work at Bayer, Mr. Weinand held various positions in commercial, operational, and strategic areas of the pharmaceutical industry. These included responsibilities spanning various therapeutic areas and geographies for companies such as Pfizer, Bristol Myers Squibb, and Otsuka. Mr. Weinand is a former board member of the Pharmaceutical Research and Manufacturers of America (PhRMA), the European Federation of Pharmaceutical Industries & Associations (EFPIA), and the International Federation of Pharmaceutical Manufacturers (IFPMA), and served as a member of the Board of Directors of HealthPrize Technologies.

About Coya Therapeutics, Inc.

Headquartered in Houston, TX, Coya Therapeutics, Inc. (NASDAQ:COYA) is a clinical-stage biotechnology company developing proprietary treatments focused on the biology and potential therapeutic advantages of regulatory T cells ("Tregs") to target systemic inflammation and neuroinflammation. Dysfunctional Tregs underlie numerous conditions including neurodegenerative, metabolic, and autoimmune diseases, and this cellular dysfunction may lead to a sustained inflammation and oxidative stress resulting in lack of homeostasis of the immune system. Coya's investigational product candidate pipeline leverages multiple therapeutic modalities aimed at restoring the anti-inflammatory and immunomodulatory functions of Tregs. Coya's lead therapeutic programs includes Treg-enhancing biologics (COYA 300 Series product candidates) COYA 301 and COYA 302, which are intended to enhance Treg function and expand Treg numbers. COYA 301 is a proprietary investigational recombinant human low dose IL-2 biologic for subcutaneous administration intended to enhance Treg function and expand Treg numbers in vivo, and COYA 302 is a dual-mechanism investigational biologic combination comprised of proprietary low dose IL-2 and proprietary CTLA4 Ig. The low dose IL-2 is intended to enhance anti-inflammatory regulatory T cell function and numbers while the fusion protein CTLA4 Ig is intended to suppress pro-inflammatory cell function. These two mechanisms may be additive or synergistic in suppressing inflammation. For more information about Coya, please visit www.coyatherapeutics.com

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