On May 26, 2023, Emergent BioSolutions Inc. (including its wholly-owned subsidiaries, "Emergent"), through its wholly-owned subsidiary, Emergent Product Development Gaithersburg Inc., received a contract modification from the Office of the Assistant Secretary for Preparedness and Response ("ASPR"), an agency of the U.S. Department of Health and Human Services ("HHS"), exercising and funding the third of nine annual contract term extension options (the "Third Option Exercise") for Emergent to supply ACAM2000® (Smallpox (Vaccinia) Vaccine, Live) into the U.S. Strategic National Stockpile (the "SNS"). The Third Option Exercise is valued at approximately $120 million.