---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-019696"
form_type: "8-K"
ticker: "MLAB"
cik: "0000724004"
company_name: "MESA LABORATORIES INC /CO/"
filed_at: "2025-06-06T23:59:59+00:00"
generated_at: "2026-05-19T18:57:38.276884+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Mesa Labs auditor changes from Moss Adams to Baker Tilly after merger

## Summary
- Moss Adams merged with Baker Tilly US, LLP effective June 3, 2025; Baker Tilly appointed as successor independent auditor.
- No disagreements or reportable events with Moss Adams during fiscal 2025 or subsequent interim period.
- Moss Adams' audit reports on FY2025 consolidated financials and internal controls were unqualified.
- Audit Committee approved appointment of Baker Tilly; no prior consultations with Baker Tilly.

## SEC filing metadata
- accession: 0001437749-25-019696
- form_type: 8-K
- ticker: MLAB
- cik: 0000724004
- company_name: MESA LABORATORIES INC /CO/
- filed_at: 2025-06-06T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/724004/000143774925019696/0001437749-25-019696-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/724004/000143774925019696/mlab20250603_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-019696
- JSON: https://secwatch.observer/filing/0001437749-25-019696.json
- Plain text: https://secwatch.observer/filing/0001437749-25-019696.txt

## Key facts
- Auditor Changes
  Moss Adams LLP resigned as auditor of MESA LABORATORIES INC /CO/.
  - Action: resignation
  - Auditor: Moss Adams LLP
  - Successor: Baker Tilly US, LLP
  source text: On June 3, 2025, Mesa Laboratories, Inc., (the "Company") was notified that Moss Adams LLP ("Moss Adams"), the Company's independent registered public accounting firm, merged with Baker Tilly US, LLP effective on June 3, 2025. The combined audit practices operate as Baker Tilly US, LLP (“Baker Tilly”). In connection with the notification of the merger, Moss Adams has resigned as the auditors of the Company and the Audit Committee of the Company’s Board of Directors approved the appointment of Baker Tilly, as the successor to Moss Adams, as the Company’s independent registered public accounting firm.
  evidence_url: https://www.sec.gov/Archives/edgar/data/724004/000143774925019696/0001437749-25-019696-index.htm

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