---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-24-047013"
form_type: "8-K"
ticker: "PPSI"
cik: "0001449792"
company_name: "PIONEER POWER SOLUTIONS, INC."
filed_at: "2024-11-20T23:59:59+00:00"
generated_at: "2026-05-29T21:44:07.707476+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "medium"
source: SEC EDGAR
---

# Pioneer Power dismisses auditor Marcum, cites material weaknesses; Q3 earnings call held

## Summary
- Audit committee dismissed Marcum LLP as independent auditor effective Nov 14, 2024.
- Marcum's prior reports were unqualified except for restatement paragraph; no disagreements.
- Material weaknesses reported: revenue recognition for complex transactions and inventory accounting.
- Q3 2024 earnings call held; financial results and Q4 2024/FY 2025 guidance discussed but no specific figures in filing.
- Company provided Marcum's response letter as Exhibit 16.1.

## SEC filing metadata
- accession: 0001493152-24-047013
- form_type: 8-K
- ticker: PPSI
- cik: 0001449792
- company_name: PIONEER POWER SOLUTIONS, INC.
- filed_at: 2024-11-20T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: medium
- sec_items: 2.02, 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1449792/000149315224047013/0001493152-24-047013-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1449792/000149315224047013/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-24-047013
- JSON: https://secwatch.observer/filing/0001493152-24-047013.json
- Plain text: https://secwatch.observer/filing/0001493152-24-047013.txt

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