---
schema_version: "secwatch.filing_event.v1"
accession: "0001915657-23-000077"
form_type: "8-K"
ticker: "DINO"
cik: "0001915657"
company_name: "HF Sinclair Corp"
filed_at: "2023-11-03T23:59:59+00:00"
generated_at: "2026-06-08T22:45:36.986669+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# HF Sinclair EVP Michael C. Jennings resigns as officer effective Nov 9; moves to consultant role

## Summary
- Michael C. Jennings resigns as EVP, Corporate effective November 9, 2023.
- Jennings had previously retired as CEO on May 8, 2023; served as EVP since then.
- Effective Nov 10, he becomes a consultant under the Feb 15, 2023 Successor Transition Agreement.
- No replacement named; board and management structure continue with existing leadership.

## SEC filing metadata
- accession: 0001915657-23-000077
- form_type: 8-K
- ticker: DINO
- cik: 0001915657
- company_name: HF Sinclair Corp
- filed_at: 2023-11-03T23:59:59+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/1915657/000191565723000077/0001915657-23-000077-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1915657/000191565723000077/dino-20231103.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001915657-23-000077
- JSON: https://secwatch.observer/filing/0001915657-23-000077.json
- Plain text: https://secwatch.observer/filing/0001915657-23-000077.txt

## Key facts
- Executive change
  Michael C. Jennings resigned as Executive Vice President, Corporate at HF Sinclair Corp.
  - Action: resigned
  - Role: Executive Vice President, Corporate
  source text: On November 2, 2023, Michael C. Jennings delivered to the Board of Directors (the “ Board ”) of HF Sinclair Corporation (the “ Corporation ”) his resignation as an officer of the Corporation effective November 9, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1915657/000191565723000077/0001915657-23-000077-index.htm

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