---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-089919"
form_type: "8-K"
ticker: "PSIX"
cik: "0001137091"
company_name: "POWER SOLUTIONS INTERNATIONAL, INC."
filed_at: "2022-03-30T23:59:59+00:00"
generated_at: "2026-06-26T13:06:55.793125+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# PSI appoints Matthew Thomas interim CFO as Donald Klein departs

## Summary
- Donald Klein will resign as CFO effective April 8, 2022, to pursue other interests; no disagreement.
- Corporate controller Matthew Thomas appointed interim CFO while a permanent search is conducted.
- Thomas joined PSI in 2018, has 12+ years accounting/finance experience, and is a licensed CPA.
- Company plans to file its 2021 Form 10-K on March 31, 2022.

## SEC filing metadata
- accession: 0001193125-22-089919
- form_type: 8-K
- ticker: PSIX
- cik: 0001137091
- company_name: POWER SOLUTIONS INTERNATIONAL, INC.
- filed_at: 2022-03-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1137091/000119312522089919/0001193125-22-089919-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1137091/000119312522089919/d267098d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-089919
- JSON: https://secwatch.observer/filing/0001193125-22-089919.json
- Plain text: https://secwatch.observer/filing/0001193125-22-089919.txt

## Key facts
- Executive change
  Matthew Thomas was appointed as Interim Chief Financial Officer at POWER SOLUTIONS INTERNATIONAL, INC..
  - Action: appointed
  - Role: Interim Chief Financial Officer
  source text: it will appoint current corporate controller Matthew Thomas as its interim chief financial officer while the Company conducts a search for a permanent chief financial officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1137091/000119312522089919/0001193125-22-089919-index.htm

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