---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-24-028901"
form_type: "8-K"
ticker: null
cik: "0001837344"
company_name: "Nocturne Acquisition Corp"
filed_at: "2024-04-01T23:59:59+00:00"
generated_at: "2026-06-04T04:53:28.830887+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.95
calibrated_materiality_score: 0.95
confidence: "high"
source: SEC EDGAR
---

# Nocturne Acquisition merger with Cognos expires; Nasdaq delisting notice received, meeting canceled

## Summary
- Merger agreement with Cognos Therapeutics expired automatically on March 31, 2024, after Outside Date passed without closing.
- Nasdaq notified Nocturne on March 26, 2024 of non-compliance with SPAC listing rule; delisting effective April 4, 2024 as no hearing requested.
- Extraordinary General Meeting for the business combination, previously postponed to April 2, 2024, has been canceled permanently.
- Company intends to allow its securities to be delisted from Nasdaq; no further merger vote will occur.

## SEC filing metadata
- accession: 0001213900-24-028901
- form_type: 8-K
- cik: 0001837344
- company_name: Nocturne Acquisition Corp
- filed_at: 2024-04-01T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.95
- calibrated_materiality_score: 0.95
- confidence: high
- sec_items: 1.01, 3.01, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1837344/000121390024028901/0001213900-24-028901-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1837344/000121390024028901/ea0203100-8k425_nocturne.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-24-028901
- JSON: https://secwatch.observer/filing/0001213900-24-028901.json
- Plain text: https://secwatch.observer/filing/0001213900-24-028901.txt

## Key facts
- Material Agreements
  Nocturne Acquisition Corp terminated Agreement and Plan of Merger and Reorganization with Cognos Therapeutics, Inc. (effective 2024-03-31).
  - Action: termination
  - Agreement: merger
  - Counterparty: Cognos Therapeutics, Inc.
  - Effective: 2024-03-31
  source text: f Nocturne (“Merger Sub”), and Cognos Therapeutics, Inc., a Delaware corporation (“Cognos”), with respect to a proposed initial business combination (such proposed business combination the “Merger”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1837344/000121390024028901/0001213900-24-028901-index.htm

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