X0508 4 2026-03-03 0 0001367644 Emergent BioSolutions Inc. EBS 0001190344 FOWLER JOHN D JR 300 PROFESSIONAL DRIVE GAITHERSBURG MD 20879 1 0 0 0 0 Common Stock 2026-03-03 4 A 0 5006 8.99 A 5006 D Consists of restricted stock units granted under the company's Stock Incentive Plan. These restricted stock units vest in three annual installments beginning on the day prior to the anniversary of the date of grant, assuming continued service with the company. Each restricted stock unit represents the right of the Reporting Person to receive one share of common stock of Emergent BioSolutions Inc., subject to adjustment as provided in the grant agreement. /s/ Richard S. Lindahl, Attorney-in-fact 2026-03-05