Our Story:
Who We Are

Redefining Hope through RNA Therapies

At Creyon, we are redefining what’s possible in RNA drug design and delivery. Creyon is a drug development company creating tissue-specific, RNA-targeted nucleic acid therapies that are designed to be safer, more effective, and improve the patient experience. Our focus is on conditions where conventional therapies are limited in their ability to be delivered to the right place, at the right dose, for the right amount of time including immunology, central nervous system (CNS), and neuromuscular disease.

Mission

Our purpose is to unlock the full therapeutic potential of RNA therapies through precise delivery and a deep understanding of tissue biology, enabling better outcomes and improved quality of life for patients.

Management:

Leading the Next Generation of RNA Therapeutics

Creyon is led by a team of experienced biotech innovators, scientific pioneers, and business leaders who bring a proven track record of advancing novel therapies from concept to clinic. Together, they are united by a shared mission: to transform RNA drug delivery and design through precision targeting, AI-driven engineering, and an unwavering focus on patient outcomes. Creyon’s leadership combines scientific depth with operational excellence, backed by investor confidence and a clear pathway to clinical validation. The team’s collective experience across discovery, platform development, and clinical execution ensures that Creyon is well-positioned to deliver on its mission to make RNA therapies more targeted, and more personalized for patients in need.

Serge Messerlian, MSc, MBA

Chairman & Chief Executive Officer
Serge Messerlian brings over 25 years of experience in serving patients and building value in the life science industry across... Read More
Serge Messerlian, MSc, MBA
Chairman & Chief Executive Officer

Serge Messerlian brings over 25 years of experience in serving patients and building value in the life science industry across a range of roles and therapeutic areas, including immunology, hematology, oncology and rare disease. Before joining Creyon, Serge was CEO of Teon Therapeutics. Prior to that, as President of Oncology at Johnson & Johnson, he set the strategic direction for the organization, its key brands, and pipeline programs across hematology and solid tumors, as well as platforms including cell therapies. He also held executive leadership roles at Johnson & Johnson’s Actelion, Baxalta, and Baxter International. Serge is an Operating Partner at DCVC Bio. He holds a B.Sc. degree in physiology & biotechnology and a M.Sc. degree in molecular genetics, both from McGill University, and an MBA from the University of Toronto.

Jason Ferrone, JD

Chief Operating Officer & General Counsel
Jason has a unique combination of leadership experience across various disciplines of drug discovery and development. Prior to joining Creyon,... Read More
Jason Ferrone, JD
Chief Operating Officer & General Counsel

Jason has a unique combination of leadership experience across various disciplines of drug discovery and development. Prior to joining Creyon, Jason co-founded Intrinsic Medicine, serving as its President and Chief Operating Officer, a company focused on developing oligosaccharides found in human milk as therapeutic prebiotics. As he was building Intrinsic, Jason provided intellectual property, regulatory and business strategy consulting services to early-stage drug discovery and development companies. For the preceding nearly 14 years, Jason was at Ionis Pharmaceuticals, where he held various positions including Vice President, Regulatory Affairs and Corporate Development and Vice President, Patents and Corporate Development where he lead the patent group for nearly a decade and served as the Project Team Lead for Ionis’ original PKK drug candidate to treat hereditary angioedema. Before joining Ionis, Jason was patent counsel for Enanta Pharmaceuticals, Inc. and patent manager for the Dana-Farber Cancer Institute. Prior to becoming an attorney, Jason was a research medicinal chemist. Jason received his J.D., cum laude, from Suffolk University Law School, with an Intellectual Property Concentration, his M.A. in Chemistry from San Diego State University, and his B.S. in Biochemistry with an emphasis in Chemistry from the University of California, Riverside.

Matthew Levy, PhD

Senior Vice President & Head of Research
Matthew is a nucleic acid chemist, biochemist, molecular biologist, and biotechnologist with more than 20 years of experience with leadership... Read More
Matthew Levy, PhD
Senior Vice President & Head of Research

Matthew is a nucleic acid chemist, biochemist, molecular biologist, and biotechnologist with more than 20 years of experience with leadership roles in academia as a Principal Investigator and head of laboratory and in industry with roles as Vice President, Chief Scientific Officer, and co-founder. He is an expert in engineering nucleic acids, proteins, and other functional oligonucleotides, particularly in developing aptamers for targeting cell surface receptors. Before joining Creyon, Matthew served as the Head of Discovery at Vitrisa Therapeutics. Prior to that, he held a position as Associate Professor of Biochemistry at the Albert Einstein College of Medicine in New York, where he ran a successful research program for 10 years focused on developing new technologies and approaches using nucleic acid aptamers as well as engineered proteins for both diagnostic and therapeutic purposes. He has authored more than 50 peer-reviewed publications and has 9 issued patents. He received his B.S. in Biochemistry and his M.S. in Chemistry at the University of California San Diego, and went on to obtain his Ph.D. at the University of Texas at Austin.

Jeyaprakashnarayanan Seenisamy, PhD

Senior Vice President, Head of India Operations
JP is a Medicinal Chemist by training and an experienced scientific leader in pharmaceutical discovery and development with business acumen... Read More
Jeyaprakashnarayanan Seenisamy, PhD
Senior Vice President, Head of India Operations

JP is a Medicinal Chemist by training and an experienced scientific leader in pharmaceutical discovery and development with business acumen and more than 20 years of project leadership. JP has extensive experience in design and execution of drug discovery projects from hit to the clinical candidate stage with management of resources in CRO set-up. Before joining Creyon, JP served as research director in Syngene International Ltd (a Biocon company) in Bangalore where he was leading discovery chemistry teams (>250 chemists) working for big and medium pharma and small and virtual biotech collaborations in different domains. At Syngene, he was also involved in setting up and managing the larger collaborations for big pharma by establishing infrastructure, budget, recruiting top talents, other business, and scientific operations. JP has authored more than 30 peer-reviewed publications and has 10 patents. He received his Ph.D. from Indian Institute of Technology at Kanpur and subsequently received his postdoctoral training at Arizona Cancer Center, Tucson in identifying structures and designing drugs for multi-stranded oligonucleotides (G-quadruplexes and i-motifs). At Creyon, JP will be heading all the scientific and other operations in India.

Amy Bouck, PhD

Executive Director, Corporate Development
Amy brings 20 years of biotech leadership experience spanning R&D, commercial, product management, and operational roles. Amy’s post-academic career began... Read More
Amy Bouck, PhD
Executive Director, Corporate Development

Amy brings 20 years of biotech leadership experience spanning R&D, commercial, product management, and operational roles. Amy’s post-academic career began at DuPont (now Corteva BioSciences), where she managed a portfolio of bioinformatics analysis tools and databases and spearheaded initiatives to apply genomic data directly to ongoing research and operational work. She then spent 12+ years in genomics devices, including time at PacBio and Illumina. While at Illumina, Amy focused on the design, development, and marketing of IVD products that applied DNA sequencing to patient care in prenatal testing and oncology. Amy earned a B.S. in Communication from Cornell University, a Ph.D. in genetics from the University of Georgia, and completed a postdoctoral fellowship in bioinformatics and genomics at Duke University and UNC Chapel Hill.

Steve Maricich, MD, PhD

Acting Chief Medical Officer
Steve is an experienced clinical development executive who has served on the executive leadership team of several companies. He joins... Read More
Steve Maricich, MD, PhD
Acting Chief Medical Officer

Steve is an experienced clinical development executive who has served on the executive leadership team of several companies. He joins Creyon from Ultragenyx, where he was the Neurology Therapeutic Area Head who oversaw submission of a BLA for a MPS IIIA gene therapy and initiation of a Phase 3 ASO trial for the treatment of Angelman syndrome. Steve’s previous experience includes CMO roles at Ashvattha, where he oversaw development of clinical-stage ophthalmology and neurology programs; Calibr/Scripps Bioventures, a leading nonprofit translational research center focused on preclinical drug discovery and early-stage clinical research; and Allievex, a rare disease start-up company that he helped spin out of BioMarin Pharmaceuticals. Over the course of his career, Steve has secured more than $2M in grant funding from the NIH and other privately operated organizations. Steve earned his M.D. and Ph.D. degrees in neuroscience from Case Western Reserve University. He is a board-certified child neurologist with experience as a primary investigator while serving as pediatrics and child neurology faculty at Baylor College of Medicine/Texas Children’s Hospital, Case Western Reserve University/Rainbow Babies and Children’s Hospital, and the University of Pittsburgh/UPMC Children’s Hospital of Pittsburgh.

Board of Directors:

Guiding Creyon’s Vision and Growth

Creyon’s Board of Directors brings together accomplished leaders with decades of experience in biotech innovation, finance, company building, and capital markets. Their collective insight helps guide Creyon’s strategy as the company advances from discovery toward clinical validation and long-term value creation. Our Board members have led or supported successful biotechnology companies through every stage of growth from early-stage formation and platform validation to global partnerships, IPOs, and acquisitions. Their expertise spans corporate strategy, scientific innovation, and financial stewardship, ensuring that Creyon continues to operate with focus, discipline, and momentum.

Serge Messerlian, MSc, MBA

Chairman & Chief Executive Officer
Serge Messerlian brings over 25 years of experience in serving patients and building value in the life science industry across... Read More
Serge Messerlian, MSc, MBA
Chairman & Chief Executive Officer

Serge Messerlian brings over 25 years of experience in serving patients and building value in the life science industry across a range of roles and therapeutic areas, including immunology, hematology, oncology and rare disease. Before joining Creyon, Serge was CEO of Teon Therapeutics. Prior to that, as President of Oncology at Johnson & Johnson, he set the strategic direction for the organization, its key brands, and pipeline programs across hematology and solid tumors, as well as platforms including cell therapies. He also held executive leadership roles at Johnson & Johnson’s Actelion, Baxalta, and Baxter International. Serge is an Operating Partner at DCVC Bio. He holds a B.Sc. degree in physiology & biotechnology and a M.Sc. degree in molecular genetics, both from McGill University, and an MBA from the University of Toronto.

Kiersten Stead, PhD, MBA

Managing Director, DCVC Bio
Kiersten is a scientist-investor focused on developing deep-tech platforms in therapeutics, agriculture and food, and industrial biotechnology. She works with entrepreneurs... Read More
Kiersten Stead, PhD, MBA
Managing Director, DCVC Bio

Kiersten is a scientist-investor focused on developing deep-tech platforms in therapeutics, agriculture and food, and industrial biotechnology. She works with entrepreneurs to help them launch their businesses at their foundation and/or to support them through successive stages.

Prior to co-founding DCVC Bio, Kiersten was an investor for a major life-science firm, was a scientist, and has co-founded a series of life-science companies over her career. Kiersten serves on several company boards, and as a director on not-for-profit boards such as the Danforth Center for Plant Sciences and the Keystone Symposia SAB. She holds a PhD in molecular biology and genetics and an MBA from the University of Alberta.

Shaquille Vayda

Partner, Lux Capital
Shaq is a partner at Lux Capital, with a passion for technology and a desire to invest in people. He... Read More
Shaquille Vayda
Partner, Lux Capital

Shaq is a partner at Lux Capital, with a passion for technology and a desire to invest in people. He is drawn to technologies that separate true signal from background noise, a theme that has guided him from early DSP work at NASA and Northrop Grumman – where he helped process infrared & RF data for missions like the James Webb – to decoding genomic information at Illumina and observing the birth of GRAIL’s liquid-biopsy platform. And most recently at Parthenon, where he advised mega-cap private equity investors on enterprise & infrastructure software buyouts.

Shaq’s intersectional journey sharpens his view of how foundational “building blocks” in sensing, data, and biology create outsized downstream markets. Shaq serves on the boards of Creyon, Enveda, Atavistik, Nomic, and Gandeeva. He holds a BS in Mechanical Engineering from the University of Florida.

Dennis Langer, MD, JD

Independent Board Director
Dr. Langer has served as a Director of Creyon Bio, Inc. since 2021. He has over 40 years of leadership... Read More
Dennis Langer, MD, JD
Independent Board Director

Dr. Langer has served as a Director of Creyon Bio, Inc. since 2021. He has over 40 years of leadership experience in the pharmaceutical and biotechnology industries, is known for his dual medical and legal background, and has played a role in developing or commercializing over 60 products. He has held senior executive positions at major pharmaceutical companies, biotechnology companies, and venture capital, and has served on numerous corporate boards. After serving at Eli Lilly, Abbott Laboratories (where he identified and repositioned Depakote for bipolar disorders) and Searle (where he supervised the launches of Ambien for insomnia and Calan SR for hypertension), he served as a Senior Vice President in R&D at SmithKline Beecham and GlaxoSmithKline. Subsequently, he was Co-Founder and Director of Ception Therapeutics, Inc., which licensed an IL-5 antibody from Schering for eosinophilic asthma, was acquired by Cephalon, Inc., and the product is now commercialized in the U.S. and Europe. Previously, he was President, North America for Dr. Reddy’s Laboratories, Managing Partner, Phoenix IP Ventures, and the Founding CEO of Neose Technologies (Nasdaq:NTEC). He is currently a Director of Quoin Pharmaceuticals (Nasdaq:QNRX), Empirico, Inc., Braeburn, Inc., Whitehead Institute for Biomedical Research, and the Harvard Law School Dean’s Advisory Board. Previously, he served on the Boards of Myriad Genetics (Nasdaq: MYGN), Transkaryotic Therapies (Nasdaq: TKTX), Sirna Therapeutics (Nasdaq: SRNA), and Dicerna Pharmaceuticals (Nasdaq: DRNA). He received his M.D. from Georgetown University School of Medicine, his J.D. from Harvard Law School, and his B.A. in Biology from Columbia University in New York City. He was an Intern, Resident, and Chief Resident at Yale, and served Fellowships at the National Institutes of Health and Harvard/Children’s Hospital of Boston.

Culture:

United by Purpose, Driven by Science in the Service of Patients

At Creyon, our culture is built around a simple idea that groundbreaking science can only happen when people are inspired by a shared purpose. We’re driven by the belief that every experiment, every idea, and every discovery brings us closer to improving patients’ lives for the long term.

Our work doesn’t stop at the bench. We are building a company where curiosity fuels innovation, compassion guides our mission, and collaboration amplifies our impact.

Delivery is at the core of what we do—how we execute and how our science works. This process is required to get patients new therapeutics, improve treatment, or treat diseases that are currently untreatable.

RNA breakthroughs is what Creyon was founded upon. We are dedicated to making patient-meaningful improvements to RNA therapeutics.

Redefining how patients feel today and tomorrow. We are working to change the lives of patients by reimagining the drug delivery and discovery process and redefining what is possible.

Hope is not passive. We are empathetic and future-focused. Our work fuels our dedication, innovation, collaboration, and ethical responsibility to deliver breakthroughs for those with unmet medical needs.

Creyon is more than a biotech company

We are a community of scientists, engineers, and innovators who care deeply about the people our work will help one day. We approach science with the same humanity we aim to bring to healthcare. We are thoughtful, accountable, and hopeful.

Our team thrives on candor, collaboration, and ownership. Candor eliminates hierarchy so ideas can be evaluated on their merits, leading to clearer thinking and higher-quality decisions. Collaboration eliminates silos and enables an integrated approach to problem-solving, ensuring we leverage the strengths and diverse perspectives of our team. Ownership requires the courage to make bold bets, the discipline to execute, and a commitment to empowering others with speed and accountability.