---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-065930"
form_type: "8-K"
ticker: "PSX"
cik: "0001534701"
company_name: "Phillips 66"
filed_at: "2024-03-12T23:59:59+00:00"
generated_at: "2026-06-04T22:59:47.077296+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Phillips 66 appoints CEO Mark Lashier as Chairman; Greg Garland to retire from board

## Summary
- Mark E. Lashier, President and CEO, appointed Chairman of the Board effective before May 15, 2024 annual meeting.
- Current Executive Chairman Greg C. Garland will step down from the board; board size reduces to 13 directors.
- Glenn F. Tilton remains Lead Independent Director; changes part of multi-year succession plan.

## SEC filing metadata
- accession: 0001193125-24-065930
- form_type: 8-K
- ticker: PSX
- cik: 0001534701
- company_name: Phillips 66
- filed_at: 2024-03-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1534701/000119312524065930/0001193125-24-065930-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1534701/000119312524065930/d762915d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-065930
- JSON: https://secwatch.observer/filing/0001193125-24-065930.json
- Plain text: https://secwatch.observer/filing/0001193125-24-065930.txt

## Key facts
- Executive change
  Greg C. Garland departed as Executive Chairman at Phillips 66.
  - Action: step down
  - Role: Executive Chairman
  source text: Greg C. Garland, the Company’s current Executive Chairman and former President and Chief Executive Officer, will step down from the Board, and the size of the Board will be reduced from 14 directors to 13 directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1534701/000119312524065930/0001193125-24-065930-index.htm
- Executive change
  Mark E. Lashier was appointed as Chairman of the Board at Phillips 66.
  - Action: appointed
  - Role: Chairman of the Board
  source text: appointed Mark E. Lashier, the Company’s President and Chief Executive Officer and a member of the Board, to the additional position of Chairman of the Board, effective immediately prior to the Company’s 2024 Annual Meeting of Shareholders to be held on May 15, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1534701/000119312524065930/0001193125-24-065930-index.htm

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