Nature of the business and organization	9 Months Ended
Nature of the business and organization	Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of the business and organization	Nature of the business and organization Organization and business Emergent BioSolutions Inc. (“Emergent,” the “Company,” “we,” “us,” and “our”) is a global life sciences company focused on providing innovative preparedness and response solutions addressing accidental, deliberate, and naturally occurring Public Health Threats (“PHTs”). The Company's solutions include a product portfolio, a product development portfolio, and a contract development and manufacturing (“CDMO”) services portfolio. The Company is focused on the following four PHT categories: chemical, biological, radiological, nuclear and explosives (“CBRNE”); emerging infectious diseases (“EID”); emerging health crises; and acute, emergency and community care. As of September 30, 2025, the Company has a portfolio of 11 products consisting of vaccines, therapeutics, and drug-device combination products, including KLOXXADO® Nasal Spray for which the Company obtained certain exclusive commercial rights for product sales and marketing in the United States and Canada. The revenue generated by the products comprises a substantial portion of the Company's revenue. The Company structures the business with a focus on markets and customers. As such, the key components of the business structure include the following four product and service categories: Anthrax - Medical Countermeasures (“MCM”) products, Naloxone commercial products, Smallpox - MCM products and Emergent Bioservices (CDMO) (“Bioservices”). The Company manages the business with a focus on three operating segments: (1) a Commercial Products segment consisting of NARCAN® Nasal Spray and KLOXXADO® Nasal Spray, described below; (2) a MCM Products segment consisting of our Anthrax - MCM, Smallpox - MCM and Other Products, described below and (3) a Services segment consisting of our Bioservices offerings. Commercial Products and MCM Products are our two reportable segments (see Note 17, “Segment information” for more information on our reportable segments). The Company's products and services include: Commercial Products Segment: Naloxone Products •NARCAN® (naloxone HCl) Nasal Spray is an intranasal formulation of naloxone approved by the United States Food and Drug Administration (“FDA”) (including in over-the-counter (“OTC”) form) and Health Canada for the emergency treatment of known or suspected opioid overdose as manifested by respiratory and/or central nervous system depression. •KLOXXADO® (naloxone HCl) Nasal Spray. On January 14, 2025, the Company announced an agreement with Hikma Pharmaceuticals Inc. (“Hikma”) in which the Company obtained exclusive commercial rights for product sales and marketing in the United States and Canada to Hikma’s KLOXXADO® (naloxone HCl) Nasal Spray, an 8 mg naloxone agent. MCM Products Segment: Anthrax - MCM Products •Anthrasil® (Anthrax Immune Globulin Intravenous (human)), the only polyclonal antibody therapeutic licensed by the FDA and Health Canada for the treatment of inhalational anthrax in combination with appropriate antibacterial drugs; •BioThrax® (Anthrax Vaccine Adsorbed), the only vaccine licensed by the FDA for the general use prophylaxis and post-exposure prophylaxis of anthrax disease; •CYFENDUS® (Anthrax vaccine adsorbed (AVA), adjuvanted), previously known as AV7909, which was recently approved by the FDA for post-exposure prophylaxis of disease following suspected or confirmed exposure to Bacillus anthracis in persons 18 through 65 years of age when administered in conjunction with recommended antibacterial drugs. CYFENDUS® is procured by certain authorized government buyers for their use; and •Raxibacumab injection, the first fully human monoclonal antibody therapeutic licensed by the FDA for the treatment and prophylaxis of inhalational anthrax. Smallpox - MCM Products •ACAM2000®, (Smallpox (Vaccinia) Vaccine, Live), the only single-dose smallpox vaccine licensed by the FDA for active immunization against smallpox disease for persons determined to be at high risk for smallpox infection; •CNJ-016® (Vaccinia Immune Globulin Intravenous (Human) (VIGIV)), the only polyclonal antibody therapeutic licensed by the FDA and Health Canada to address certain complications from smallpox vaccination; and •TEMBEXA®, an oral antiviral formulated as 100 mg tablets and 10 mg/mL oral suspension dosed once weekly for two weeks which has been approved by the FDA for the treatment of smallpox disease caused by variola virus in adult and pediatric patients, including neonates. Other Products •BAT® (Botulism Antitoxin Heptavalent (A,B,C,D,E,F,G)-(Equine)), the only heptavalent antitoxin licensed by the FDA and Health Canada for the treatment of symptomatic botulism; and •Ebanga™ (ansuvimab-zykl), a monoclonal antibody with antiviral activity provided through a single IV infusion for the treatment of Ebola. Under the terms of a collaboration with Ridgeback Biotherapeutics (“Ridgeback”), Emergent will be responsible for the manufacturing, sale, and distribution of Ebanga™ in the U.S. and Canada, and Ridgeback will serve as the global access partner for Ebanga™. Trobigard Revocation On April 2, 2024, the Belgium Federal Agency for Medicines and Health Products acknowledged and confirmed Emergent’s request to revoke the Market Authorization for the Trobigard Auto-Injector. Sale of RSDL® On July 31, 2024, the Company entered into the Stock and Asset Purchase Agreement (the “RSDL® Agreement”) with SERB Pharmaceuticals, through its wholly owned subsidiary BTG International Inc. (collectively, “SERB”), pursuant to which, among other things, the Company sold its worldwide rights to RSDL® to SERB (the “RSDL® Transaction”). See Note 4, “Divestitures” for more information on the RSDL® Transaction. Services Segment: As of the first quarter of 2025, the Company’s Services operating segment no longer met the quantitative thresholds of a reportable segment and did not meet the aggregation criteria set forth in Accounting Standards Codification (“ASC”) 280, Segment Reporting, and as such is categorized within “All other revenues” along with “Contracts and Grants” within Note 17 “Segment information”. See Note 17, “Segment information” for more information about the Company’s reportable segments.