---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-100076"
form_type: "8-K"
ticker: "HSDT"
cik: "0001610853"
company_name: "Solana Co"
filed_at: "2025-10-16T23:59:59+00:00"
generated_at: "2026-05-17T03:33:06.906947+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Solana Company auditor switches from Baker Tilly to CBIZ; prior reports flagged going concern

## Summary
- Baker Tilly US, LLP resigned as independent auditor on October 15, 2025; Audit Committee accepted.
- No disagreements or reportable events in fiscal years 2023, 2024 or interim period through Oct 15, 2025.
- Baker Tilly's prior reports contained explanatory paragraph expressing substantial doubt about going concern.
- New auditor CBIZ CPAs P.C. appointed for fiscal year ending December 31, 2025; no prior consultations.

## SEC filing metadata
- accession: 0001104659-25-100076
- form_type: 8-K
- ticker: HSDT
- cik: 0001610853
- company_name: Solana Co
- filed_at: 2025-10-16T23:59:59+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/1610853/000110465925100076/0001104659-25-100076-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1610853/000110465925100076/hsdt-20251015x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-100076
- JSON: https://secwatch.observer/filing/0001104659-25-100076.json
- Plain text: https://secwatch.observer/filing/0001104659-25-100076.txt

## Source-grounded claims
- claim_id: 2627a8b490d3f93aa6bae756ca4906584f0ba156
  claim: Solana Co engaged CBIZ CPAs P.C. as its auditor.
  evidence_excerpt: On October 15, 2025, the Committee approved the appointment of CBIZ CPAs P.C. (“CBIZ CPAs”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1610853/000110465925100076/0001104659-25-100076-index.htm
- claim_id: ef70a427826d8f18809a7e240ef5c5b9547303a9
  claim: Baker Tilly US, LLP resigned as auditor of Solana Co.
  evidence_excerpt: On October 15, 2025, the Audit Committee (the “Committee”) of the Board of Directors of Solana Corporation (formerly known as Helius Medical Technologies, Inc.) (the “Company”) received the resignation of Baker Tilly US, LLP (“Baker Tilly”) as the Company’s independent registered public accounting firm, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1610853/000110465925100076/0001104659-25-100076-index.htm

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