• Bain Capital Life Sciences Investors reported beneficial ownership of 8,434,560 shares of Rapid Micro Biosystems Class A common stock.
• The filing also shows indirect holdings of 1,463,000 pre-funded warrants, 1,463,000 Series A warrants, and 1,463,000 Series B warrants tied to Class A common stock.
• The warrants carry exercise prices of USD 0.01 for the pre-funded warrant, USD 1.96 for the Series A warrant, and USD 2.34 for the Series B warrant.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Rapid Micro Biosystems Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001193125-26-237016), on May 22, 2026, and is solely responsible for the information contained therein.