Lyell Immunopharma Strengthens Clinical and Commercial Capabilities with Key Board and Executive Appointments

• Mark J. Bachleda, PharmD, MBA appointed as independent member of the Board of Directors
• David Shook, MD appointed as Chief Medical Officer, Mark Meltz, JD as General Counsel and Corporate Secretary, and Jarrad Aguirre, MD, MBA as Senior Vice-President of Medical Affairs

SOUTH SAN FRANCISCO, Calif., June 09, 2025 (GLOBE NEWSWIRE) -- Lyell Immunopharma, Inc. (Nasdaq: LYEL), a clinical-stage company advancing a pipeline of next-generation CAR T-cell therapies for patients with cancer, today announced the appointment of Mark J. Bachleda, PharmD, MBA as an independent member of the Board of Directors, David Shook, MD as Chief Medical Officer, and Mark Meltz, JD as General Counsel and Corporate Secretary. These appointments, along with the appointment earlier in the year of Jarrad Aguirre, MD, MBA as Senior Vice President, Medical Affairs, further strengthen the Company’s clinical and commercial capabilities.

“As Lyell prepares to move forward with two pivotal programs designed to advance LYL314 towards approval for patients with aggressive large B-cell lymphoma, we are delighted to welcome leaders who further strengthen and bring new expertise to our Board of Directors and our Executive Committee,” said Lynn Seely, MD, Lyell’s President and Chief Executive Officer. “Collectively, these new leaders have deep cell therapy expertise and highly relevant experience launching new medicines for patients. We look forward to their contributions as we continue to make progress on achieving our mission of bringing next-generation cell therapies to patients with cancer.”

“The addition of Dr. Bachleda to the Lyell Board provides us with experienced commercial leadership, including in cell therapy, at this critical time as Lyell becomes a late-stage clinical company initiating pivotal clinical trials and anticipating a commercial launch of LYL314,” said Rick Klausner, MD, Chairman of the Lyell Board of Directors. “I could not be more pleased with the progress the company is making and am confident that our new executive leaders will ensure operational excellence as we focus on rapidly advancing LYL314, our autologous CD19/CD20 CAR T-cell therapy, to patients.”