Altimmune Signs Definitive Agreement to Acquire Spitfire Pharma, Inc. Adding NASH Drug Candidate to Portfolio Spitfire, a portfolio company of Presidio Partners, was founded by John J. Nestor, Jr., Ph.D. and Velocity Pharmaceutical Development, LLC, for the sole purpose of developing the NASH drug candidate, SP-1373. Spitfire shareholders will receive an upfront payment of $5 million in Altimmune common stock and will be eligible to receive an additional $8 million in future regulatory and clinical milestones payable in cash or common stock. Spitfire shareholders are also eligible to receive up to $80 million in sales-based milestones. The issuance of common stock to satisfy the milestone payments is subject to stockholder approval in accordance with Nasdaq rules. http://ir.altimmune.com/news-releases/news-release-details/altimmune-signs-definitive-agreement-acquire-spitfire-pharma-inc