Emergent BioSolutions SVP William Hartzel Sells 1,741 Shares at $8.00

This Form 4 filing reports that William Hartzel, Senior Vice President of Bioservices at Emergent BioSolutions Inc. (EBS), sold 1,741 shares of common stock on June 8, 2026, at a price of $8.00 per share. The transaction was coded as "F" (tax withholding) and the shares were withheld to pay taxes associated with the vesting and settlement of restricted stock units. Following this transaction, Hartzel owns 185,558 shares directly. The filing was signed by Richard S. Lindahl as attorney-in-fact on June 10, 2026. This represents a routine tax-related transaction rather than a discretionary sale by the officer.