---
schema_version: "secwatch.filing_event.v1"
accession: "0001453687-24-000055"
form_type: "8-K"
ticker: "RNAC"
cik: "0001453687"
company_name: "Cartesian Therapeutics, Inc."
filed_at: "2024-04-09T23:59:59+00:00"
generated_at: "2026-06-04T00:53:36.037368+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Cartesian Therapeutics Series A Preferred automatically converts, resulting in 17.8M shares outstanding

## Summary
- Automatic conversion of Series A Non-Voting Convertible Preferred Stock occurred on April 8, 2024.
- After conversion, common stock outstanding totals 17,779,787 shares.
- No further Series A Preferred shares remain outstanding; previously approved by stockholders on March 27, 2024.
- Company also filed updated corporate slide presentation for investor conferences.

## SEC filing metadata
- accession: 0001453687-24-000055
- form_type: 8-K
- ticker: RNAC
- cik: 0001453687
- company_name: Cartesian Therapeutics, Inc.
- filed_at: 2024-04-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1453687/000145368724000055/0001453687-24-000055-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1453687/000145368724000055/rnac-20240408.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001453687-24-000055
- JSON: https://secwatch.observer/filing/0001453687-24-000055.json
- Plain text: https://secwatch.observer/filing/0001453687-24-000055.txt

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