Summary
Updated Aug 31, 2026
Atanas H. Atanasov is EVP and CFO of HF Sinclair Corp (DINO). 6 SEC Form 4 filings on record going back to 2024, most recently on 3 December 2025. Most recent open-market trade: bought $169K of DINO on 20 December 2024. Lifetime open-market purchases: $509K. Historical track record: 2/5 stars across 3 tracked purchases.
Recent Transactions
9Every recent SEC Form 4 transaction Atanas H. Atanasov has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★☆☆☆ (2/5) |
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 33% |
| 90-day win rate | 33% |
| Avg 5-day return | -3.82% |
| Avg 30-day return | +0.94% |
| Avg 90-day return | -11.63% |
| Best 30-day return | +7.84% |
Trading Pattern
InsiderAlpha's records for Atanas H. Atanasov go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $170K (3 buys totaling $509K). The largest single buy on record is $266K of DINO in 2024. 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 Atanas H. Atanasov 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 Atanas H. Atanasov?
Atanas H. Atanasov is a corporate insider, tracked as EVP and CFO of HF Sinclair Corp (DINO). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Atanas H. Atanasov last file a Form 4?
The most recent primary Form 4 on record is dated 3 December 2025, one of 6 filings going back to 2024.
Has Atanas H. Atanasov been buying or selling stock?
Recorded transactions: 3 open-market purchases ($509K) and 0 open-market sales across all tracked filings.
How accurate is Atanas H. Atanasov's historical track record?
Across 3 tracked purchases, Atanas H. Atanasov averaged +0.9% avg 30-day return with a 33% 30-day win rate. InsiderAlpha rates the track record at 2/5 stars.
Where can I see all of Atanas H. Atanasov'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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