Robert J. Kostelnik
CIK: 0001507989
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)2 (100.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
DINO
HF Sinclair Corp
Director
Discretionary Trading P&L
Holdings
About Kostelnik Robert J.
Kostelnik Robert J. (SEC CIK 0001507989) files insider reports with the SEC as Director of HF Sinclair Corp (DINO).
Signal8 holds 2 ownership filings by Kostelnik Robert J., all Form 4s, filed between Nov 14, 2024 and Nov 13, 2025. Those filings report 2 transactions, from Nov 13, 2024 to Nov 12, 2025. Signal8's Form 4 history starts in Sep 2024.
The business address on Kostelnik Robert J.'s filings is in DALLAS, TX.
Recent filings by Kostelnik Robert J.
Other insiders filing for HF Sinclair Corp (DINO)
- MYERS FRANKLIN, CEO
- Kunneman Dale, SVP and CHRO
- Marchant Matthew H, SVP and General Counsel
- REH Advisors Inc., Director
- White Scott Stephen, SVP, Operations
- Kaysen Eric, SVP, EHS