Summary
Updated Aug 30, 2026
Ross B. Matthews files SEC Form 4 reports at HF Sinclair Corp (DINO). 2 SEC Form 4 filings on record going back to 2024, most recently on 13 November 2025.
Recent Transactions
2Every recent SEC Form 4 transaction Ross B. Matthews has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Ross B. Matthews go back to 2024: 2 primary Form 4 filings, an average of 0.7 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Ross B. Matthews files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Franklin Myers - $2.32M of DINO open-market activity in the last 12 months
- Dale Kunneman - $756K of DINO open-market activity in the last 12 months
- Valerie Pompa - $691K of DINO open-market activity in the last 12 months
- Matthew Joyce - $166K of DINO open-market activity in the last 12 months
- Rhoman J. Hardy - $100K of DINO open-market activity in the last 12 months
- Vivek Garg - $68K of DINO open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Ross B. Matthews?
Ross B. Matthews is a corporate insider of HF Sinclair Corp (DINO). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Ross B. Matthews last file a Form 4?
The most recent primary Form 4 on record is dated 13 November 2025, one of 2 filings going back to 2024.
Where can I see all of Ross B. Matthews's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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