---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-041070"
form_type: "8-K"
ticker: "CYN"
cik: "0001874097"
company_name: "Cyngn Inc."
filed_at: "2026-04-07T23:59:59+00:00"
generated_at: "2026-05-15T07:06:37.980831+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Cyngn appoints Baker Tilly as new auditor, cites material weakness in internal controls

## Summary
- Appointed Baker Tilly US, LLP as independent auditor, replacing CBIZ CPAs P.C., effective April 3, 2026.
- No disagreements with CBIZ on accounting principles or disclosure; reportable event: material weakness in internal controls.
- Material weakness related to ineffective oversight of third parties and lack of technical expertise for complex accounting transaction, as reported in 2025 10-K.
- CBIZ provided letter to SEC dated April 3, 2026 agreeing with Company's statements (Exhibit 16.1).

## SEC filing metadata
- accession: 0001213900-26-041070
- form_type: 8-K
- ticker: CYN
- cik: 0001874097
- company_name: Cyngn Inc.
- filed_at: 2026-04-07T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1874097/000121390026041070/0001213900-26-041070-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1874097/000121390026041070/ea0285300-8k_cyngn.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-041070
- JSON: https://secwatch.observer/filing/0001213900-26-041070.json
- Plain text: https://secwatch.observer/filing/0001213900-26-041070.txt

## Key facts
- Auditor Changes
  Cyngn Inc. engaged Baker Tilly US, LLP as its auditor.
  - Action: engagement
  - Auditor: Baker Tilly US, LLP
  source text: approved the proposed appointment of Baker Tilly US, LLP (“Baker Tilly”) as the Company’s independent registered public accounting firm
  evidence_url: https://www.sec.gov/Archives/edgar/data/1874097/000121390026041070/0001213900-26-041070-index.htm
- Auditor Changes
  Cyngn Inc. dismissed CBIZ CPAs P.C. as its auditor.
  - Action: dismissal
  - Auditor: CBIZ CPAs P.C.
  - Successor: Baker Tilly US, LLP
  source text: dismissing the Company’s previous independent public accounting firm, CBIZ CPAs P.C.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1874097/000121390026041070/0001213900-26-041070-index.htm

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