---
schema_version: "secwatch.filing_event.v1"
accession: "0001552000-26-000012"
form_type: "8-K"
ticker: "MPLX"
cik: "0001552000"
company_name: "MPLX LP"
filed_at: "2026-03-18T23:59:59+00:00"
generated_at: "2026-05-15T09:51:16.371376+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# MPLX appoints Erin Brzezinski as VP & Controller (principal accounting officer) effective April 1, 2026

## Summary
- Erin Brzezinski to succeed Rebecca Iten as Vice President and Controller of MPLX GP, effective April 1, 2026.
- Brzezinski currently serves as principal accounting officer of Marathon Petroleum (MPC) and will continue in that role.
- She will report to MPLX CFO Kris Hagedorn and also to MPC CFO Maria Khoury.
- Brzezinski previously served as MPC's Vice President and Controller since Jan 2024, and before that at PwC and Cooper Tire.
- No arrangements or family relationships with MPLX directors or officers.

## SEC filing metadata
- accession: 0001552000-26-000012
- form_type: 8-K
- ticker: MPLX
- cik: 0001552000
- company_name: MPLX LP
- filed_at: 2026-03-18T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1552000/000155200026000012/0001552000-26-000012-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1552000/000155200026000012/mplx-20260316.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001552000-26-000012
- JSON: https://secwatch.observer/filing/0001552000-26-000012.json
- Plain text: https://secwatch.observer/filing/0001552000-26-000012.txt

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