---
schema_version: "secwatch.filing_event.v1"
accession: "0001453687-24-000110"
form_type: "8-K"
ticker: "RNAC"
cik: "0001453687"
company_name: "Cartesian Therapeutics, Inc."
filed_at: "2024-09-26T23:59:59+00:00"
generated_at: "2026-05-31T01:30:32.734737+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Cartesian Therapeutics completes automatic conversion of Series B Preferred Stock; 23.9M common shares outstanding

## Summary
- Stockholders at Sept 20 special meeting approved issuance of common shares from Series B Preferred Stock conversion.
- Automatic conversion of all Series B Non-Voting Convertible Preferred Stock completed on Sept 25, 2024.
- Following conversion, there are 23,893,525 shares of common stock issued and outstanding.

## SEC filing metadata
- accession: 0001453687-24-000110
- form_type: 8-K
- ticker: RNAC
- cik: 0001453687
- company_name: Cartesian Therapeutics, Inc.
- filed_at: 2024-09-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1453687/000145368724000110/0001453687-24-000110-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1453687/000145368724000110/rnac-20240925.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001453687-24-000110
- JSON: https://secwatch.observer/filing/0001453687-24-000110.json
- Plain text: https://secwatch.observer/filing/0001453687-24-000110.txt

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