---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-237098"
form_type: "8-K"
ticker: "DINO"
cik: "0001915657"
company_name: "HF Sinclair Corp"
filed_at: "2023-09-19T23:59:59+00:00"
generated_at: "2026-06-10T14:00:10.115627+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.05
calibrated_materiality_score: 0.05
confidence: "high"
source: SEC EDGAR
---

# HF Sinclair amends by-laws to clarify voting standard for meeting adjournment

## Summary
- Amendment allows adjournment by chairperson or majority of stockholders present (in person or by proxy).
- Effective September 18, 2023; no other by-law changes.
- Adopted by Board of Directors on September 18, 2023.

## SEC filing metadata
- accession: 0001193125-23-237098
- form_type: 8-K
- ticker: DINO
- cik: 0001915657
- company_name: HF Sinclair Corp
- filed_at: 2023-09-19T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.05
- calibrated_materiality_score: 0.05
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1915657/000119312523237098/0001193125-23-237098-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1915657/000119312523237098/d483337d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-237098
- JSON: https://secwatch.observer/filing/0001193125-23-237098.json
- Plain text: https://secwatch.observer/filing/0001193125-23-237098.txt

## Key facts
- Governance Changes
  HF Sinclair Corp: Clarified voting standard for adjournment of meetings in Article II, Section 6 (effective 2023-09-18).
  - Change: bylaw amendment
  - Effective: 2023-09-18
  source text: On September 18, 2023, the Board of Directors of HF Sinclair Corporation (the “ Corporation ”) approved the Corporation’s Third Amended and Restated By-Laws (the “ Amended and Restated By-Laws ”), effective as of such date, to clarify the voting standard for adjournment of meetings found in Article II, Section 6.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1915657/000119312523237098/0001193125-23-237098-index.htm

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