X0508 4 2026-03-09 0001698990 Magnolia Oil & Gas Corp MGY 0001188511 SMITH DAN F C/O MAGNOLIA OIL & GAS CORPORATION NINE GREENWAY PLAZA, SUITE 1300 HOUSTON TX 77046 true false false false 0 Class A Common Stock 2026-03-09 4 S 0 18000 29.012 D 119204 D The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.01 to $29.03, inclusive. The reported person undertakes to provide to the Company, any Company security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. /s/ Timothy D. Yang, Attorney-in-Fact 2026-03-11