---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-24-042724"
form_type: "8-K"
ticker: "NAGE"
cik: "0001386570"
company_name: "Niagen Bioscience, Inc."
filed_at: "2024-10-11T23:59:59+00:00"
generated_at: "2026-05-30T15:16:39.909739+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# ChromaDex auditor Marcum resigns effective Oct 31 due to conflict from CBIZ merger

## Summary
- Marcum LLP resigned as independent auditor effective Oct 31, 2024, citing independence concerns from its impending merger with CBIZ Inc.
- CBIZ provides HR consulting and health insurance brokerage services to ChromaDex, creating a conflict under independence rules.
- Marcum's audit reports for fiscal years 2022 and 2023 contained no adverse opinions or qualifications.
- No disagreements or reportable events occurred during the relevant periods; Board and Audit Committee were not involved in the resignation decision.
- Company has not yet named a replacement auditor; Marcum's letter to SEC filed as Exhibit 16.1.

## SEC filing metadata
- accession: 0001628280-24-042724
- form_type: 8-K
- ticker: NAGE
- cik: 0001386570
- company_name: Niagen Bioscience, Inc.
- filed_at: 2024-10-11T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1386570/000162828024042724/0001628280-24-042724-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1386570/000162828024042724/cdxc-20241008.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-24-042724
- JSON: https://secwatch.observer/filing/0001628280-24-042724.json
- Plain text: https://secwatch.observer/filing/0001628280-24-042724.txt

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