SEC Form 4 · Updated Daily
SXC
— SUNCOKE ENERGY, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Gates Katherine T | Director · Officer | 316,676 | 2026-02-24 | J |
| Hardesty Phillip Michael | Officer | 298,677 | 2026-02-25 | P |
| Anton Arthur F | Director | 95,571 | 2026-05-14 | A |
| Della Ratta Ralph M Jr | Director | 86,293 | 2025-11-06 | P |
| Marinko Mark W. | Officer | 71,798 | 2026-02-25 | P |
| Quanci John F | Officer | 25,423 | 2026-02-23 | M |
| Mikhalevsky Andrei Alexander | Director | 7,000 | 2026-02-26 | P |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-05-14 | Anton Arthur F | Grant / award | 21,652 | $0.00 | 95,571 |
| 2026-05-14 | Carnes Martha Z. | Grant / award (derivative) | 21,652 | $0.00 | 75,214 |
| 2026-05-14 | Mikhalevsky Andrei Alexander | Grant / award (derivative) | 21,652 | $0.00 | 62,921 |
| 2026-05-14 | Della Ratta Ralph M Jr | Grant / award (derivative) | 36,585 | $0.00 | 73,175 |
| 2026-05-14 | Landahl Susan R. | Grant / award (derivative) | 21,652 | $0.00 | 75,214 |
| 2026-05-14 | Lewis Michael Ward | Grant / award (derivative) | 21,652 | $0.00 | 75,214 |
| 2026-02-26 | Mikhalevsky Andrei Alexander | Open-market buy | 5,000 | $5.53 | 7,000 |
| 2026-02-25 | Marinko Mark W. | Open-market buy | 9,600 | $5.84 | 71,798 |
| 2026-02-25 | Marinko Mark W. | Open-market buy | 400 | $5.83 | 62,198 |
| 2026-02-25 | Hardesty Phillip Michael | Open-market buy | 291 | $5.82 | 298,677 |
| 2026-02-25 | Hardesty Phillip Michael | Open-market buy | 12,209 | $5.83 | 298,386 |
| 2026-02-24 | Hardesty Phillip Michael | Option exercise (derivative) | 7,792 | — | 7,792 |
| 2026-02-24 | Hardesty Phillip Michael | Option exercise (derivative) | 8,683 | — | 0 |
| 2026-02-24 | Hardesty Phillip Michael | J | 10,695 | — | 286,177 |
| 2026-02-24 | Hardesty Phillip Michael | Tax withholding | 3,686 | $6.22 | 271,364 |
| 2026-02-24 | Hardesty Phillip Michael | Option exercise | 7,792 | — | 275,050 |
| 2026-02-24 | Hardesty Phillip Michael | Tax withholding | 4,108 | $5.88 | 267,258 |
| 2026-02-24 | Hardesty Phillip Michael | Option exercise | 8,683 | — | 271,366 |
| 2026-02-24 | Gates Katherine T | Option exercise (derivative) | 38,480 | — | 38,479 |
| 2026-02-24 | Gates Katherine T | Option exercise (derivative) | 17,878 | — | 0 |
| 2026-02-24 | Gates Katherine T | J | 10,695 | — | 316,676 |
| 2026-02-24 | Gates Katherine T | Tax withholding | 17,047 | $6.22 | 278,592 |
| 2026-02-24 | Gates Katherine T | Option exercise | 38,480 | — | 295,639 |
| 2026-02-24 | Gates Katherine T | Tax withholding | 7,920 | $5.88 | 257,159 |
| 2026-02-24 | Gates Katherine T | Option exercise | 17,878 | — | 265,079 |
| 2026-02-24 | Marinko Mark W. | Option exercise (derivative) | 7,600 | — | 7,599 |
| 2026-02-24 | Marinko Mark W. | Option exercise (derivative) | 8,468 | — | 0 |
| 2026-02-24 | Marinko Mark W. | J | 4,633 | — | 61,798 |
| 2026-02-24 | Marinko Mark W. | Tax withholding | 3,367 | $6.22 | 52,895 |
| 2026-02-24 | Marinko Mark W. | Option exercise | 7,600 | — | 56,262 |
| 2026-02-24 | Marinko Mark W. | Tax withholding | 3,752 | $5.88 | 48,662 |
| 2026-02-24 | Marinko Mark W. | Option exercise | 8,468 | — | 52,414 |
| 2026-02-23 | Hardesty Phillip Michael | Option exercise (derivative) | 8,688 | — | 17,377 |
| 2026-02-23 | Hardesty Phillip Michael | Tax withholding | 4,570 | $6.22 | 275,482 |
| 2026-02-23 | Hardesty Phillip Michael | Option exercise | 8,688 | — | 280,052 |
| 2026-02-23 | Gates Katherine T | Option exercise (derivative) | 49,231 | — | 98,461 |
| 2026-02-23 | Gates Katherine T | Tax withholding | 21,842 | $6.22 | 305,981 |
| 2026-02-23 | Gates Katherine T | Option exercise | 49,231 | — | 327,823 |
| 2026-02-23 | Quanci John F | Option exercise (derivative) | 5,501 | — | 11,101 |
| 2026-02-23 | Quanci John F | Option exercise (derivative) | 4,963 | — | 4,963 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.