MarketPeel
Insider Trading Intelligence
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MM

Mark W. Marinko

SXC
SR VP, CHIEF FINANCIAL OFFICER · SUNCOKE ENERGY, INC. · CIK 0001612207
FILING MIX · LIFETIME50%/50%
BUYS
25
SELLS
25
TOTAL VALUE
$1.85M
COMPANIES
2
ACTIVE SINCE
Dec 2019
HOLDINGS NOW
301,615
AVG SELL PX
$11.28
TRADE KIND
SHOWING 50 / 50
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Mark W. Marinko, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d2+100.00%+10.36%-1.16%+11.52%+11.52%—
14d2+100.00%+4.32%-2.43%+6.74%+6.74%—
30d2+100.00%+14.68%-8.52%+23.20%+23.20%—
60d2+100.00%+13.64%+3.18%+10.47%+10.47%—
90d2+100.00%+45.08%————
180d2(2 pending)——————
1y2(2 pending)——————
2y2(2 pending)——————
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SXC · 71,798 shares · as of Feb 25, 2026
017,95035,89953,84971,7982023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2019
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 25 buys / 25 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
400$5.83$2.3K62,198Feb 25, 2026Feb 26, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
9,600$5.84$56.1K71,798Feb 25, 2026Feb 26, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,468——0Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
4,633——61,798Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
3,752$5.88$22.1K48,662Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
7,600——56,262Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
3,367$6.22$20.9K52,895Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,468——52,414Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
7,600——7,599Feb 24, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,474——61,369Feb 23, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
4,204$6.22$26.1K57,165Feb 23, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,474——16,947Feb 23, 2026Feb 24, 2026 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,791——47,841Mar 7, 2025Mar 11, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,791——0Mar 7, 2025Mar 11, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
3,895$9.05$35.2K43,946Mar 7, 2025Mar 11, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,469——22,174Feb 24, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,469——8,468Feb 24, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
7,600——15,199Feb 24, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
7,600——26,022Feb 24, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
3,367$9.20$31.0K22,655Feb 24, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
3,752$9.20$34.5K18,422Feb 24, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASEGRANT
Stock grant
25,421——25,421Feb 21, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
16,395$9.51$155.9K39,050Feb 21, 2025Feb 25, 2025 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,791——17,600Mar 7, 2024Mar 11, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
3,895$10.95$42.7K13,705Mar 7, 2024Mar 11, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,791——8,791Mar 7, 2024Mar 11, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,469——13,010Feb 23, 2024Feb 27, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,469——16,937Feb 23, 2024Feb 27, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
4,201$10.84$45.5K8,809Feb 23, 2024Feb 27, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASEGRANT
Stock grant
22,799——22,799Feb 22, 2024Mar 19, 2024 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
8,792——17,582Mar 8, 2023Mar 13, 2023 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASE
SR VP, Chief Financial Officer
8,792——8,792Mar 8, 2023Mar 13, 2023 ↗View →
SXC
SUNCOKE ENERGY, INC.
SALE
SR VP, Chief Financial Officer
4,251$9.58$40.7K4,541Mar 8, 2023Mar 13, 2023 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASEGRANT
Stock grant
25,186——25,186Feb 23, 2023Feb 28, 2023 ↗View →
SXC
SUNCOKE ENERGY, INC.
PURCHASEGRANT
Stock grant
26,374$8.91$235.0K26,374Mar 7, 2022Mar 8, 2022 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
6,043$15.41$93.1K223,774Mar 15, 2021Mar 16, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
6,386——229,817Mar 15, 2021Mar 16, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
11,709——229,983Mar 12, 2021Mar 15, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
9,045$15.76$142.5K220,938Mar 12, 2021Mar 15, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
10,374$15.12$156.9K218,274Mar 8, 2021Mar 10, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
10,966——228,648Mar 8, 2021Mar 10, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
10,234——217,682Mar 5, 2021Mar 9, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
21,860$13.17$287.9K207,448Dec 31, 2020Jan 4, 2021 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
5,659$7.59$43.0K222,922Mar 13, 2020Mar 16, 2020 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
6,386——229,308Mar 13, 2020Mar 16, 2020 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
22,235——228,581Mar 12, 2020Mar 16, 2020 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
49,344——207,675Mar 8, 2020Mar 10, 2020 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
14,981$8.99$134.7K206,346Mar 8, 2020Mar 10, 2020 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
PURCHASEGRANT
Stock grant
10,965——218,640Mar 8, 2020Mar 10, 2020 ↗View →
GLDD
GREAT LAKES DREDGE & DOCK CORP
SALE
Chief Financial Officer
21,532$11.33$244.0K158,331Dec 31, 2019Jan 3, 2020 ↗View →
Other insiders · SXC
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About this filer
CIK 0001612207
ROLE
SR VP, Chief Financial Officer
PRIMARY
SXC
COMPANIES
2
ACTIVE SINCE
Dec 2019
MARKETPEEL · /INSIDER/0001612207DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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