Acadia Pharmaceuticals Appoints Allyson McMillan-Youngblood as Senior Vice President, Rare Disease Franchise

SAN DIEGO--(BUSINESS WIRE)-- Acadia Pharmaceuticals Inc. (Nasdaq: ACAD) today announced the appointment of Allyson McMillan-Youngblood as Senior Vice President, Rare Disease Franchise. In this role Allyson will be joining Acadia’s commercial leadership team with a focus on maximizing the potential of DAYBUE^® and preparing for future product launches as the Company expands its rare disease portfolio.

“We are delighted to welcome Allyson to Acadia,” said Catherine Owen Adams, Chief Executive Officer. “She brings a remarkable breadth of experience across U.S. and global sales and marketing roles, with a proven track record of delivering strong commercial results. Her leadership across therapeutic areas—including oncology, immunology, CNS, infectious disease, cardiovascular and metabolic disorders—as well as her experience specifically in rare oncology, will be invaluable as we grow the DAYBUE brand and advance our pipeline to bring new therapies to patients in need.”

Allyson's distinguished career spans more than 20 years in the global pharmaceutical industry including various sales positions, both in primary care and specialty sectors, at Pfizer, and significant commercial roles at Bristol Myers Squibb (BMS). Most recently, Allyson served as Senior Vice President and Business Unit Head, U.S. Oncology at BMS, where she provided strategic oversight for two major acquisitions in rare tumors, resulting in successful product launches and significant market share growth. Beyond her operational expertise, Allyson is recognized as a driven and highly capable leader who fosters an inclusive culture that embraces both strategic and solution-oriented innovation.

“I am excited to join Acadia Pharmaceuticals,” said Allyson McMillan-Youngblood. “Acadia has a strong commitment to patient care and innovation, and I look forward to working with the team to drive DAYBUE growth and prepare to bring new therapies to patients with rare diseases.”

Allyson holds a Bachelor of Science in Business Administration from Florida A&M University. She has been consistently recognized for her ability to lead through change and her commitment to improving patient outcomes throughout her career.

About Acadia Pharmaceuticals

Acadia is advancing breakthroughs in neuroscience to elevate life. Since our founding we have been working at the forefront of healthcare to bring vital solutions to people who need them most. We developed and commercialized the first and only FDA-approved drug to treat hallucinations and delusions associated with Parkinson’s disease psychosis and the first and only approved drug in the United States and Canada for the treatment of Rett syndrome. Our clinical-stage development efforts are focused on Prader-Willi syndrome, Alzheimer’s disease psychosis and multiple other programs targeting neuroscience and neuro-rare diseases. For more information, visit us at Acadia.com and follow us on LinkedIn and X.

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Investor Contact:

Acadia Pharmaceuticals Inc.

Al Kildani

(858) 261-2872

ir@acadia-pharm.com

Acadia Pharmaceuticals Inc.

Jessica Tieszen

(858) 261-2950

ir@acadia-pharm.com

Media Contact:

Acadia Pharmaceuticals Inc.

Deb Kazenelson

(818) 395-3043

media@acadia-pharm.com

Source: Acadia Pharmaceuticals Inc.