FibroBiologics Appoints Leigh Steinberg to Board of Directors (Form 8-K)

FibroBiologics Appoints Leigh Steinberg to Board of Directors

Legendary Sports Agent, Attorney, and Longtime Advocate for Human Longevity and Brain Health Joins Board

HOUSTON, August 24, 2026 /PRNewswire/ -- FibroBiologics, Inc. (Nasdaq: FBLG) ("FibroBiologics"), a clinical-stage biotechnology company with 270+ patents issued and pending with a focus on the development of therapeutics and potential cures for chronic diseases using fibroblasts and fibroblast-derived materials, today announced the appointment of Leigh Steinberg to its Board of Directors. Widely regarded as the most influential sports agent of his generation, Mr. Steinberg brings five decades of dealmaking experience, a deep commitment to human longevity research, and a long record of initiatives in chronic disease awareness and management.

Pete O'Heeron, Chief Executive Officer and Chairman of FibroBiologics, said, "Leigh has spent his career looking around corners. Long before brain health and longevity became national conversations, he was convening physicians and researchers to protect the long-term health of his athletes, and he has carried that same focus into chronic disease advocacy for decades. His negotiating skill is unmatched, and his circle of influence and contacts across sports, medicine, business, and media is simply unparalleled. As we advance our fibroblast-based pipeline, including our human longevity program, Leigh will be a powerful voice at our board table and a tremendous asset to our shareholders."

"I have spent much of my life asking how we help people live longer, healthier lives, from the brain health summits I began holding for my players in the 1990s to my ongoing work in longevity and chronic disease awareness," said Mr. Steinberg. "FibroBiologics is attacking chronic disease at its roots with fibroblast cell therapy, and the breadth of its science and patent portfolio is remarkable. I am honored to join the Board and to put my experience, my relationships, and my negotiating background to work for the company and the patients it aims to serve."

Mr. Steinberg is the Chief Executive Officer of Steinberg Sports & Entertainment. Over a career spanning more than 50 years, he has represented over 300 professional athletes across football, baseball, basketball, boxing, and Olympic sports, including a record eight No. 1 overall picks in the NFL Draft and more than 60 first-round selections. He has negotiated over $4 billion in contracts for his clients and directed more than $800 million to charities around the world, earning commendations from Congress, numerous cities and states, and Presidents Reagan, Bush, and Clinton. His career served as the inspiration for the Academy Award-winning film Jerry Maguire.

Beyond the negotiating table, Mr. Steinberg has been a pioneering advocate for long-term human health. Beginning in 1994, he organized annual brain health summits that brought leading neurologists together with athletes to address the risks of traumatic brain injury, work that helped bring concussion awareness

into the national spotlight. He recently launched the Leigh Steinberg Foundation to fund research and promote awareness, prevention, and treatment of neurological injury, and he is a passionate champion of health technologies that extend performance, manage pain, and enhance longevity. Mr. Steinberg is the best-selling author of Winning with Integrity, a guide to non-confrontational negotiation, and The Agent: My 40-Year Career of Making Deals and Changing the Game. He holds a B.A. in political science and a J.D. from the University of California, Berkeley.

For more information, please visit FibroBiologics' website, email FibroBiologics at [email protected] or follow FibroBiologics on LinkedIn, YouTube, Facebook or X.