X0508 4 2026-03-02 0001995807 LandBridge Co LLC LB 0001914249 WATSON CHARLES L. 5555 SAN FELIPE STREET, SUITE 1200 HOUSTON TX 77056 true false false false false Class A shares 2026-03-02 4 S false 30680 74.0661 D 86920 I See Footnote Class A shares 2026-03-04 4 S false 9670 75.1884 D 77250 I See Footnote Class A shares 2026-03-06 4 S false 13000 75.0043 D 64250 I See Footnote Class A shares 9554 D Includes 64,250 Class A shares representing limited liability company interests (the "Class A shares") in LandBridge Company LLC that are directly held by Wincrest Ventures, LP ("Wincrest Ventures"). The reporting person is the chief executive officer of Wincrest Ventures, and the reporting person and his wife jointly own 100% of the ownership interests in Wincrest Investments Inc., the sole general partner of Wincrest Ventures. As a result of the foregoing, the reporting person may exercise voting and investment control over the Class A shares held by Wincrest Ventures and may be deemed to be the beneficial owner thereof. The reporting person disclaims beneficial ownership of Class A shares in excess of his pecuniary interest therein, if any. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.1477 to $75.6468 per share. /s/ Scott L. McNeely, Attorney-In-Fact 2026-03-06