---
schema_version: "secwatch.filing_event.v1"
accession: "0000089439-21-000070"
form_type: "8-K"
ticker: "MLI"
cik: "0000089439"
company_name: "MUELLER INDUSTRIES INC"
filed_at: "2021-12-07T23:59:59+00:00"
generated_at: "2026-06-28T03:21:41.372285+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Mueller Industries elects William C. Drummond to board; effective Jan 1, 2022

## Summary
- William C. Drummond elected to Board of Directors as additional member, effective January 1, 2022.
- Drummond also appointed to Audit Committee, effective same date.
- No other changes to board composition reported.

## SEC filing metadata
- accession: 0000089439-21-000070
- form_type: 8-K
- ticker: MLI
- cik: 0000089439
- company_name: MUELLER INDUSTRIES INC
- filed_at: 2021-12-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/89439/000008943921000070/0000089439-21-000070-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/89439/000008943921000070/mli-20211206.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000089439-21-000070
- JSON: https://secwatch.observer/filing/0000089439-21-000070.json
- Plain text: https://secwatch.observer/filing/0000089439-21-000070.txt

## Key facts
- Executive change
  William C. Drummond was elected as Director at MUELLER INDUSTRIES INC.
  - Action: elected
  - Role: Director
  source text: elected William C. Drummond as an additional member of the Board effective January 1, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/89439/000008943921000070/0000089439-21-000070-index.htm

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