---
schema_version: "secwatch.filing_event.v1"
accession: "0001193805-25-000419"
form_type: "8-K"
ticker: "ECOR"
cik: "0001560258"
company_name: "electroCore, Inc."
filed_at: "2025-04-03T23:59:59+00:00"
generated_at: "2026-05-23T22:35:46.610038+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# electroCore replaces auditor Marcum LLP with CBIZ CPAs after attest business acquisition

## Summary
- Marcum LLP resigned as independent registered public accounting firm on April 1, 2025; CBIZ CPAs P.C. engaged for FY 2025.
- Change follows CBIZ CPAs' acquisition of Marcum's attest business effective November 1, 2024.
- No disagreements with Marcum on accounting principles; prior material weakness in internal controls (Sept 30, 2023) has been remediated.
- Marcum furnished a letter to the SEC (Exhibit 16.1) agreeing with the 8-K statements.

## SEC filing metadata
- accession: 0001193805-25-000419
- form_type: 8-K
- ticker: ECOR
- cik: 0001560258
- company_name: electroCore, Inc.
- filed_at: 2025-04-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1560258/000119380525000419/0001193805-25-000419-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1560258/000119380525000419/e664358_8k-electrocore.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193805-25-000419
- JSON: https://secwatch.observer/filing/0001193805-25-000419.json
- Plain text: https://secwatch.observer/filing/0001193805-25-000419.txt

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