# EDGAR Filing Document

**Accession Number:** 0001367644
**File Stem:** 0001193125-26-158134
**Filing Date:** 2026-4
**Character Count:** 2735
**Document Hash:** e87cf78f12a7fe4c2804d993a9fdf7d1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-158134.hdr.sgml**: 20260416

**ACCESSION NUMBER**: 0001193125-26-158134

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260416

**DATE AS OF CHANGE**: 20260416

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Emergent BioSolutions Inc.
- **CENTRAL INDEX KEY:** 0001367644
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 141902018
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-33137
- **FILM NUMBER:** 26865947

**BUSINESS ADDRESS:**
- **STREET 1:** 300 PROFESSIONAL DR
- **CITY:** GAITHERSBURG
- **STATE:** MD
- **ZIP:** 20879
- **BUSINESS PHONE:** 240-631-3200

**MAIL ADDRESS:**
- **STREET 1:** 300 PROFESSIONAL DR
- **CITY:** GAITHERSBURG
- **STATE:** MD
- **ZIP:** 20879

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**SCHEDULE 14A** 

**Proxy Statement Pursuant to Section 14(a) of** 

**the Securities Exchange Act of 1934** 

**(Amendment No.)** 

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** 

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material under §240.14a-12

**Emergent BioSolutions Inc.** 

**(Name of Registrant as Specified In Its Charter)** 

**(Name of Person(s) Filing Proxy Statement, if other than the Registrant)** 

Payment of Filing Fee (Check the appropriate box):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

------

On April 16, 2026, Emergent BioSolutions Inc. sent the following message to its employees.

**Annual Meeting of Stockholders Coming Up, A Reminder to Vote**![LOGO](g110931g0416002929708.jpg)

**The 2026 annual meeting** of Emergent stockholders will be April 29, 9 a.m. Eastern Time.

**The big picture:** If you are an eligible shareholder (vested shares as of March 6, 2026), be sure to vote.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• **Even if you can't attend the virtual meeting**, you can still vote by proxy.

**What's next:** Look for an E\*TRADE email with details on how to vote.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Search your inbox for the email from <u>id@proxyvote.com</u>.

**If you're having trouble** with account access, contact <u>customer service</u>.