---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-049993"
form_type: "8-K"
ticker: "CAPN"
cik: "0002024203"
company_name: "Cayson Acquisition Corp"
filed_at: "2026-11-04T22:15:27+00:00"
generated_at: "2026-11-04T22:16:03.130986+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Cayson Acquisition Corp faces Nasdaq delisting after failing to show 400 total holders by Oct 26 deadline

## Summary
- Nasdaq notified Cayson on Oct 29, 2026 that it failed to provide shareholder figures within the extension period under Listing Rule 5450(a)(2), which requires 400 total holders.
- Nasdaq has initiated procedures to delist CAPN, CAPNU and CAPNR; the company has the right to appeal by November 5, 2026 and has already appealed.
- Original deficiency notice was received April 27, 2026; Nasdaq granted an extension to October 26, 2026 after the company submitted a compliance plan.
- Cayson says it expects to document the required shareholder figures before an appeal hearing, which would moot the matter and preserve its Nasdaq listing.

## SEC filing metadata
- accession: 0001493152-26-049993
- form_type: 8-K
- ticker: CAPN
- cik: 0002024203
- company_name: Cayson Acquisition Corp
- filed_at: 2026-11-04T22:15:27+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 3.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2024203/000149315226049993/0001493152-26-049993-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2024203/000149315226049993/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-049993
- JSON: https://secwatch.observer/filing/0001493152-26-049993.json
- Plain text: https://secwatch.observer/filing/0001493152-26-049993.txt

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