REINHART JOHN K. 4

What Happened

• John K. Reinhart, President & CEO and Director of Gulfport Energy Corp (GPOR), had 3,021 vested restricted stock units (RSUs) withheld to satisfy tax withholding obligations upon settlement. The shares were valued at $194.12 each, for a total withholding value of $586,437. The transaction is reported as a disposition (code F — payment of tax liability).

Key Details

• Transaction date: 2026-01-24; Filing date: 2026-01-27 (Form 4 accession 0001585021-26-000004).
• Shares withheld/disposed: 3,021 at $194.12 each; total value $586,437.
• Shares owned after the transaction: Not disclosed in the filing.
• Footnote: The shares represent vested RSUs previously granted under the issuer’s equity incentive plan and were withheld by Gulfport to satisfy tax withholding obligations upon settlement.
• Transaction type: Tax withholding on RSU settlement (routine disposition), not an open-market sale or new purchase.

Context

• This is a common, administrative action when equity awards vest; withheld shares are used to cover required taxes and do not necessarily signal the insider’s view on the company’s stock. It differs from a voluntary sale or purchase because the company typically handles withholding automatically.