0001367644 2023-02-27 2023-02-27 0001367644 false 8-K 2023-02-27 EMERGENT BIOSOLUTIONS INC. DE 001-33137 14-1902018 400 Professional Drive Suite 400 Gaithersburg MD 20879 240 631-3200 false false false false Common Stock, Par Value $0.001 per share EBS NYSE false