---
schema_version: "secwatch.filing_event.v1"
accession: "0001552000-23-000016"
form_type: "8-K"
ticker: "MPLX"
cik: "0001552000"
company_name: "MPLX LP"
filed_at: "2023-05-03T23:59:59+00:00"
generated_at: "2026-06-16T01:03:12.388165+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Dan D. Sandman retires from MPLX board under mandatory retirement policy

## Summary
- Dan D. Sandman retired from the board of MPLX GP LLC, general partner of MPLX LP, on May 1, 2023.
- Retirement was required by the mandatory retirement policy in MPLX's Governance Principles.
- No replacement director was named in the filing.

## SEC filing metadata
- accession: 0001552000-23-000016
- form_type: 8-K
- ticker: MPLX
- cik: 0001552000
- company_name: MPLX LP
- filed_at: 2023-05-03T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1552000/000155200023000016/0001552000-23-000016-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1552000/000155200023000016/mplx-20230501.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001552000-23-000016
- JSON: https://secwatch.observer/filing/0001552000-23-000016.json
- Plain text: https://secwatch.observer/filing/0001552000-23-000016.txt

## Key facts
- Executive change
  Dan D. Sandman retired as member of the board of directors at MPLX LP.
  - Action: retired
  - Role: member of the board of directors
  source text: On May 1, 2023, Dan D. Sandman retired from his service as a member of the board of directors of MPLX GP LLC, a Delaware limited liability company (the “General Partner”) and the general partner of MPLX LP, a Delaware limited partnership (“MPLX”), as required by the mandatory retirement policy set forth in the Governance Principles of MPLX and the General Partner.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1552000/000155200023000016/0001552000-23-000016-index.htm

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