SunCoke Energy, Inc. (SXC) has 20 known insider and institutional holders on record. The largest holder is Mangrove Partners Master Fund, Ltd. with 6,348,923 shares. Other notable holders include Hardesty Phillip Michael and Gates Katherine T.
Over the last 12 months, insiders have made 21 transactions in SXC stock — 14 buys (valued at $164.61K) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
SXC Insider Ownership
Top Holder
Mangrove Partners Master Fund, Ltd.
6,348,923 shares
Buys (12 mo)
14
$164.61K value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Mangrove Partners Master Fund, Ltd. |
Officer |
6,348,923 |
2017-07-11 |
|
| 2 |
Hardesty Phillip Michael |
Senior Vice President |
298,386 |
2026-02-26 |
|
| 3 |
Gates Katherine T |
CEO and President |
274,927 |
2026-02-25 |
|
| 4 |
West Fay |
Senior Vice President & CFO |
158,924 |
2021-03-01 |
|
| 5 |
Sweetnam James E |
Director |
129,772 |
2021-03-25 |
|
| 6 |
Rowe John W |
Director |
122,117 |
2020-12-17 |
|
| 7 |
Hamilton Peter B |
Director |
98,356 |
2020-03-26 |
|
| 8 |
Della Ratta Ralph M Jr |
Director |
86,293 |
2025-11-07 |
|
| 9 |
Yeaw Gary P |
Senior Vice President |
84,959 |
2019-07-02 |
|
| 10 |
Anton Arthur F |
Director |
73,919 |
2025-05-15 |
|
| 11 |
Marinko Mark W. |
Sr VP, Chief Financial Officer |
62,198 |
2026-02-26 |
|
| 12 |
Darnall Robert J |
Director |
57,572 |
2017-03-24 |
|
| 13 |
Carnes Martha Z. |
Director |
53,562 |
2025-05-15 |
|
| 14 |
Landahl Susan R. |
Director |
53,562 |
2025-05-15 |
|
| 15 |
Lewis Michael Ward |
Director |
53,562 |
2025-05-15 |
|
| 16 |
Lausas Allison S |
Vice President & Controller |
41,958 |
2021-05-14 |
|
| 17 |
Rippey Michael G |
Chief Executive Officer |
40,851 |
2024-03-19 |
|
| 18 |
Peiser Robert A |
Director |
37,132 |
2019-03-21 |
|
| 19 |
Peetz Karen B |
Director |
32,689 |
2015-12-17 |
|
| 20 |
Henderson Frederick A. |
Chairman, CEO & President |
30,059 |
2017-02-27 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-26 |
Mikhalevsky Andrei Alexander |
Director |
Informative Buy |
5,000 |
$5.53 |
$27.65K |
| 2026-02-25 |
Marinko Mark W. |
Sr VP, Chief Financial Officer |
Informative Buy |
400 |
$5.83 |
$2.33K |
| 2026-02-25 |
Hardesty Phillip Michael |
Senior Vice President |
Informative Buy |
12,209 |
$5.83 |
$71.18K |
| 2026-02-23 |
Quanci John F |
Chief Technology Officer |
Option Exercise (Sell) |
5,530 |
- |
- |
| 2026-02-19 |
Quanci John F |
Chief Technology Officer |
RSU Award |
24,828 |
- |
- |
| 2026-02-24 |
Gates Katherine T |
CEO and President |
Option Exercise (Sell) |
17,878 |
- |
- |
| 2026-02-23 |
Gates Katherine T |
CEO and President |
Option Exercise (Sell) |
49,231 |
- |
- |
| 2026-02-19 |
Gates Katherine T |
CEO and President |
RSU Award |
274,927 |
- |
- |
| 2026-02-24 |
Marinko Mark W. |
Sr VP, Chief Financial Officer |
Option Exercise (Sell) |
8,468 |
- |
- |
| 2026-02-23 |
Marinko Mark W. |
Sr VP, Chief Financial Officer |
Option Exercise (Sell) |
8,474 |
- |
- |
| 2026-02-24 |
Hardesty Phillip Michael |
Senior Vice President |
Option Exercise (Sell) |
8,683 |
- |
- |
| 2026-02-23 |
Hardesty Phillip Michael |
Senior Vice President |
Option Exercise (Sell) |
8,688 |
- |
- |
| 2026-02-19 |
Hardesty Phillip Michael |
Senior Vice President |
RSU Award |
39,981 |
- |
- |
| 2025-11-07 |
Hardesty Phillip Michael |
Senior Vice President |
Informative Buy |
2,032 |
$6.62 |
$13.45K |
| 2025-11-06 |
Della Ratta Ralph M Jr |
Director |
Informative Buy |
7,288 |
$6.86 |
$50K |
| 2025-05-15 |
Mikhalevsky Andrei Alexander |
Director |
RSU Award |
14,412 |
- |
- |
| 2025-05-15 |
Lewis Michael Ward |
Director |
RSU Award |
14,412 |
- |
- |
| 2025-05-15 |
Landahl Susan R. |
Director |
RSU Award |
14,412 |
- |
- |
| 2025-05-15 |
Carnes Martha Z. |
Director |
RSU Award |
14,412 |
- |
- |
| 2025-05-15 |
Anton Arthur F |
Director |
RSU Award |
14,412 |
- |
- |
| 2025-05-15 |
Della Ratta Ralph M Jr |
Director |
RSU Award |
19,734 |
- |
- |
