Emergent BioSolutions Inc. — Director's Dealing 2026

Feb 10, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Emergent BioSolutions Inc. (EBS)
CIK: 0001367644
Period of Report: 2026-02-06

Reporting Person: Hartzel William (SVP, Bioservices)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-06	Common Stock	D	5771	$10.92	Disposed	97311	Direct
2026-02-06	Common Stock	F	630	$10.92	Disposed	96681	Direct

Footnotes

F1: Consists of performance stock units granted under the Emergent BioSolutions Inc. Stock Incentive Plan. Each PSU represents a right to receive one share of common stock. The PSUs vest upon achievement with respect to both cumulative revenues and adjusted EBITDA as a percentage of total GAAP revenue calculated on a cumulative basis over the three-year period beginning January 1, 2023 and ending December 31, 2025. On February 06, 2026, the final certification date, the Compensation Committee certified the achievement of the 2023-2025 PSUs at a payout factor of 25% of target resulting in the actual award of 1,922 shares of common stock, which is less than the 7,693 shares previously reported on March 02, 2023 and June 09, 2023.

F2: Represents shares of common stock withheld to pay taxes associated with vesting and settlement of restricted stock units