Marinko Mark W. 4

4 · SunCoke Energy, Inc. · Filed Feb 25, 2026

Form 4

Period: 2026-02-23

SR VP, Chief Financial Officer

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-02-24+8,468→ 52,414 total
Tax Payment
Common Stock
[F2]
2026-02-24$5.88/sh−3,752$22,062→ 48,662 total
Exercise/Conversion
Common Stock
[F1]
2026-02-24+7,600→ 56,262 total
Tax Payment
Common Stock
[F2]
2026-02-24$6.22/sh−3,367$20,943→ 52,895 total
Exercise/Conversion
Common Stock
[F1]
2026-02-23+8,474→ 61,369 total
Tax Payment
Common Stock
[F2]
2026-02-23$6.22/sh−4,204$26,149→ 57,165 total
Other
Common Stock
[F3]
2026-02-24+4,633→ 61,798 total
Exercise/Conversion
RSUs (02.23.2023)
[F4][F1]
2026-02-24−8,468→ 0 total
From: 2024-02-23Exp: 2026-02-23→ Common Stock (8,468 underlying)
Exercise/Conversion
RSUs (02.22.2024)
[F4][F1]
2026-02-24−7,600→ 7,599 total
From: 2025-02-22Exp: 2027-02-22→ Common Stock (7,600 underlying)
Exercise/Conversion
RSUs (02.21.2025)
[F4][F1]
2026-02-23−8,474→ 16,947 total
From: 2026-02-21Exp: 2028-02-21→ Common Stock (8,474 underlying)

Footnotes (4)

[F1]Conversion rate is 1 for 1.
[F2]Shares withheld by Registrant to satisfy minimum statutory withholding requirements on vesting of RSUs.
[F3]Represents settlement of Performance Share Unit ("PSU") award granted February 23, 2023 pursuant to SunCoke Energy, Inc. ("SXC") Long Term Performance Plan in a transaction exempt under Rule 16b-3. PSU award settled, at the end of applicable three-year vesting period, in shares of SXC common stock, (net of shares withheld by Registrant to satisfy statutory tax withholding requirements).
[F4]Grant of restricted share units awarded pursuant to the SunCoke Energy, Inc. Omnibus Long-Term Incentive Plan in a transaction exempt under Rule 16b-3. The restricted share units vest in three equal annual installments on the first, second and third anniversary of the grant date.

Signature

/s/ Sean Leslie|2026-02-24

Documents

1 file