---
schema_version: "secwatch.filing_event.v1"
accession: "0000089439-23-000014"
form_type: "8-K"
ticker: "MLI"
cik: "0000089439"
company_name: "MUELLER INDUSTRIES INC"
filed_at: "2023-02-21T23:59:59+00:00"
generated_at: "2026-06-19T07:37:19.808115+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Mueller Industries amends bylaws, reduces board size from 9 to 8

## Summary
- Board approved bylaw amendments effective February 17, 2023.
- Updated stockholder nomination procedures to comply with SEC Rule 14a-19.
- Removed requirement to make stockholder list available during meetings.
- Reduced number of directors from nine to eight to reflect current board size.

## SEC filing metadata
- accession: 0000089439-23-000014
- form_type: 8-K
- ticker: MLI
- cik: 0000089439
- company_name: MUELLER INDUSTRIES INC
- filed_at: 2023-02-21T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/89439/000008943923000014/0000089439-23-000014-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/89439/000008943923000014/mli-20230217.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000089439-23-000014
- JSON: https://secwatch.observer/filing/0000089439-23-000014.json
- Plain text: https://secwatch.observer/filing/0000089439-23-000014.txt

## Key facts
- Governance Changes
  MUELLER INDUSTRIES INC: Amended bylaws to update stockholder nomination procedures per Rule 14a-19, remove stockholder list viewing requirement, and reduce board size from nine to eight directors (effective 2023-02-17).
  - Change: bylaw amendment
  - Effective: 2023-02-17
  source text: On February 17, 2023, the Board of Directors of Mueller Industries, Inc. (the “Company”) approved amendments to the Company’s bylaws primarily in response to recent changes to the rules of the Securities and Exchange Commission and the Delaware General Corporation Law.
  evidence_url: https://www.sec.gov/Archives/edgar/data/89439/000008943923000014/0000089439-23-000014-index.htm

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