---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-21-089772"
form_type: "8-K"
ticker: "IPWR"
cik: "0001507957"
company_name: "Ideal Power Inc."
filed_at: "2021-07-07T23:59:59+00:00"
generated_at: "2026-06-30T06:54:07.077492+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Ideal Power names BPM as new auditor after Gumbiner Savett merger; no disagreements

## Summary
- Effective July 1, 2021, GS combined with BPM; GS resigned, BPM engaged as new independent auditor for FY2021.
- Prior audit reports for 2019 and 2020 had no adverse opinion except a going-concern explanatory paragraph in March 2020 report.
- No disagreements or reportable events between company and GS during the two most recent fiscal years.
- Company did not consult BPM before engagement; no accounting disagreements.
- GS provided a letter filed as Exhibit 16.1 agreeing with disclosures.

## SEC filing metadata
- accession: 0001104659-21-089772
- form_type: 8-K
- ticker: IPWR
- cik: 0001507957
- company_name: Ideal Power Inc.
- filed_at: 2021-07-07T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1507957/000110465921089772/0001104659-21-089772-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1507957/000110465921089772/tm2121248d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-21-089772
- JSON: https://secwatch.observer/filing/0001104659-21-089772.json
- Plain text: https://secwatch.observer/filing/0001104659-21-089772.txt

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