Company: RPID
Filing Date: 2025-04-08
Form Type: DEF 14A
Source: 0001380106-25-000089
Chunk: 14

Company: RAPID MICRO BIOSYSTEMS, INC.
Filing Date: 2025-04-08
Form: DEF 14A
Chunk 14
---
 the two question limit;

• in furtherance of the stockholder’s personal or business interests; or

• out of order or not otherwise suitable for the conduct of the Annual Meeting as determined by the Chair or Secretary in their reasonable judgment.

Additional information regarding the Q&A session will be available in the “Rules of Conduct” available on the Annual Meeting webpage for stockholders that have accessed the Annual Meeting as a stockholder (rather than as a “guest”) by following the procedures outlined above in “Who can attend the 2025 Annual Meeting of Stockholders?”

This proxy statement, the accompanying proxy card and our 2024 Annual Report were first made available to stockholders on or about April 8, 2025.

### IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS
<div align='center'>FOR THE 2025 ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON THURSDAY, MAY 22, 2025</div>

#### This Proxy Statement and our 2024 Annual Report ,
<div align='center'>which includes our Annual Report on Form 10-K for the fiscal year ended December 31, 2024,

are available at http://www.proxyvote.com/

and at investors.rapidmicrobio.com under the tab “Financial Information”</div>

#### for viewing, downloading and printing.
A copy of our Annual Report on Form 10-K for the year ended December 31, 2024 as filed with the SEC, except for exhibits, will be furnished without charge to any stockholder upon written or oral request to Rapid Micro Biosystems, Inc., 25 Hartwell Avenue, Lexington, Massachusetts 02421, Attention: Investor Relations, Telephone 1-978-349-3200.

#### Proxy Materials Are Available on the Internet
Rapid Micro Biosystems uses the Internet as the primary means of furnishing proxy materials to stockholders. We send a Notice of Internet Availability to our stockholders with instructions on how to access the proxy materials online at proxyvote.com or request a printed copy of materials.

Stockholders may follow the instructions in the Notice of Internet Availability to elect to receive future proxy materials in print by mail or electronically by email. We encourage stockholders to take advantage of the availability of proxy materials online to reduce environmental impact and mailing costs.

Rapid Micro Biosystems’ proxy materials are also available at investors.rapidmicrobio.com.

<div align='center'>8</div>

TABLE OF CONTENTS PART 1 - PROPOSALS