Robert J. Kostelnik is Director at HollyFrontier Corp (HFC). They have made 1 open-market trade across 1 company since 2018, most recently 2025-11-12.
CIK 0001507989
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| HFC | SELL | 2018-11-30 | 2018-12-04 | $61.62 | $92K | -8.0% | -14.3% | -9.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.