---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-063936"
form_type: "8-K"
ticker: "RPID"
cik: "0001380106"
company_name: "RAPID MICRO BIOSYSTEMS, INC."
filed_at: "2026-05-19T21:13:50+00:00"
generated_at: "2026-05-19T21:18:29.171366+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# RPID raises ~$9M in underwritten common stock and warrant offering; insiders add $140K

## Summary
- Underwritten offering of 3.58M units (share + two warrants) at $1.955/unit; net proceeds ~$8.9M.
- Concurrent direct offering to directors/officers of 71,607 shares plus warrants for gross proceeds ~$140K.
- Series A warrants: exercise price $1.955, exercisable after 6 months, 1-year term; Series B: $2.34, 5-year term.
- Pre-funded warrants: $1.945 purchase price, $0.01 exercise, immediately exercisable until fully exercised.
- Proceeds to fund working capital and general corporate purposes.

## SEC filing metadata
- accession: 0001104659-26-063936
- form_type: 8-K
- ticker: RPID
- cik: 0001380106
- company_name: RAPID MICRO BIOSYSTEMS, INC.
- filed_at: 2026-05-19T21:13:50+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1380106/000110465926063936/0001104659-26-063936-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1380106/000110465926063936/tm2614922d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-063936
- JSON: https://secwatch.observer/filing/0001104659-26-063936.json
- Plain text: https://secwatch.observer/filing/0001104659-26-063936.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.