---
schema_version: "secwatch.filing_event.v1"
accession: "0000080420-26-000054"
form_type: "8-K"
ticker: "POWL"
cik: "0000080420"
company_name: "POWELL INDUSTRIES INC"
filed_at: "2026-03-31T23:59:59+00:00"
generated_at: "2026-05-15T08:18:29.934995+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Powell Industries files amendment for three-for-one stock split; effective April 1

## Summary
- Three-for-one forward stock split of common stock.
- Authorized common shares increased from 30 million to 90 million.
- Amendment effective at 5:00 p.m. ET on April 1, 2026.
- Split-adjusted trading expected to commence on April 6, 2026.
- Stock split was previously announced on March 6, 2026.

## SEC filing metadata
- accession: 0000080420-26-000054
- form_type: 8-K
- ticker: POWL
- cik: 0000080420
- company_name: POWELL INDUSTRIES INC
- filed_at: 2026-03-31T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/80420/000008042026000054/0000080420-26-000054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/80420/000008042026000054/powl-20260331.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000080420-26-000054
- JSON: https://secwatch.observer/filing/0000080420-26-000054.json
- Plain text: https://secwatch.observer/filing/0000080420-26-000054.txt

## Source-grounded claims
- claim_id: e3b30ea26ba6c449d5bb1fb5aeca095e567f11a4
  claim: POWELL INDUSTRIES INC: Amended certificate of incorporation to effect a three-for-one forward stock split and increase authorized common stock from 30 million to 90 million shares (effective 2026-04-01).
  evidence_excerpt: On March 31, 2026, the Company filed an amendment (the “Amendment”) to the Company’s Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware to effect the previously announced Stock Split and proportionately increase the number of shares of the Company’s authorized common stock from 30 million to 90 million.
  evidence_url: https://www.sec.gov/Archives/edgar/data/80420/000008042026000054/0000080420-26-000054-index.htm

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