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Insider · CIK 0001612207

Mark W. Marinko

cfoofficer

Files at SXC (SunCoke Energy, Inc.). First filing Feb 26, 2026, latest Feb 26, 2026.

In brief

Mark W. Marinko files SEC Form 4 as CFO at SXC (SunCoke Energy, Inc.). Since Feb 26, 2026, Mark W. Marinko has reported 1 open-market buy worth $58k and 0 open-market sells worth $0, the latest filed on Feb 26, 2026.

A track record needs three past buys with six months of prices behind them; Mark W. Marinko has 0, so none is measured yet.

The newest scored trade: bought $58k of SXC on Feb 25, 2026, filed Feb 26, 2026, scored 65 (notable). In the last 12 months: 1 buy worth $58k and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
1 / 0
$58k bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

SXC: SunCoke Energy, Inc.

SXCOct 9, 2026 · close 9.94

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
65Notable
SXCbuy 3
SunCoke Energy, Inc.
$58k
10,000 shares
+16%+1% from low-37% from high

Transactions

Every row this insider has filed, 12 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Feb 25, 2026SXC
SunCoke Energy, Inc.
POpen-market purchase
Common Stock
+400$5.83$2,33262,198Feb 26, 2026
Feb 25, 2026SXC
SunCoke Energy, Inc.
POpen-market purchase
Common Stock
+9,600$5.84$56k71,798Feb 26, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
MOption exercise
Common Stock
+8,468--52,414Feb 25, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
FTax withholding
Common Stock
-3,752$5.88$22k48,662Feb 25, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
MOption exercise
Common Stock
+7,600--56,262Feb 25, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
FTax withholding
Common Stock
-3,367$6.22$21k52,895Feb 25, 2026
Feb 23, 2026SXC
SunCoke Energy, Inc.
MOption exercise
Common Stock
+8,474--61,369Feb 25, 2026
Feb 23, 2026SXC
SunCoke Energy, Inc.
FTax withholding
Common Stock
-4,204$6.22$26k57,165Feb 25, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
JOther
Common Stock
+4,633--61,798Feb 25, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
MOption exercise
RSUs (02.23.2023)derivative
-8,468--0Feb 25, 2026
Feb 24, 2026SXC
SunCoke Energy, Inc.
MOption exercise
RSUs (02.22.2024)derivative
-7,600--7,599Feb 25, 2026
Feb 23, 2026SXC
SunCoke Energy, Inc.
MOption exercise
RSUs (02.21.2025)derivative
-8,474--16,947Feb 25, 2026

Questions about Mark W. Marinko

Answered from the filings on this page, as of the latest one.

Is Mark W. Marinko buying or selling?

In the last 12 months Mark W. Marinko reported 1 open-market buy worth $58k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $58k of SXC on Feb 25, 2026. Grants, option exercises and tax withholding are not counted.

How did Mark W. Marinko's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark W. Marinko has 0.

Where does Mark W. Marinko file Form 4?

Mark W. Marinko has filed Form 4 at SXC (SunCoke Energy, Inc.) as SR VP, Chief Financial Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Mark W. Marinko: insider trades and track record | InsiderTell