Sec Form 3 Filing - Capobianco David N @ LandBridge Co LLC - 2024-06-27

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Capobianco David N 2. Issuer Name and Ticker or Trading Symbol LandBridge Co LLC [ LB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O LANDBRIDGE COMPANY LLC, 5555 SAN FELIPE STREET, SUITE 1200 3. Date of Earliest Transaction (MM/DD/YY) 06/27/2024 (Street) HOUSTON, TX77056 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class B shares 57,901,603 ( 1 ) ( 2 ) ( 3 ) I See Footnotes ( 1 ) ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares DBR Land Holdings LLC common units ( 3 ) ( 3 ) ( 3 ) Class A shares 57,901,603 ( 4 ) I See Footnote ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Capobianco David N C/O LANDBRIDGE COMPANY LLC 5555 SAN FELIPE STREET, SUITE 1200 HOUSTON, TX77056 X X Signatures By: /s/ David Capobianco 06/27/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 57,901,603 Class B shares representing limited liability company interests (the "Class B shares") of the Issuer that will be directly held by LandBridge Holdings LLC ("LandBridge Holdings") following the closing of the Issuer's initial public offering of its Class A shares representing limited liability company interests (the "Class A shares") and the concurrent private placement of Class A shares. Five Point Energy Fund II AIV-VII LP ("Fund II") and Five Point Energy Fund III AIV-VIII LP ("Fund III"), which will collectively own 97.4% of the capital interests of LandBridge Holdings following the closing of the Issuer's initial public offering, will have the right to appoint a majority of the members of the board of managers of LandBridge Holdings. Five Point Energy GP II LP is the sole general partner of Fund II. Five Point Energy GP II LLC is the sole general partner of Five Point Energy GP II LP. ( 2 )(Continued from footnote 1) Five Point Energy GP III LP is the sole general partner of Fund III. Five Point Energy GP III LLC is the sole general partner of Five Point Energy GP III LP. Each of Five Point Energy GP II LLC and Five Point Energy GP III LLC is controlled by the reporting person as each respective entity's sole member. As a result of the foregoing, the reporting person may exercise voting and dispositive power over the Class B shares held by LandBridge Holdings and may be deemed to be the beneficial owner thereof. The reporting person disclaims beneficial ownership of Class B shares in excess of his pecuniary interest therein, if any. ( 3 )Each Class B share has no economic rights but entitles its holder to one vote on all matters to be voted on by the shareholders of the Issuer generally. At the request of a holder, each membership interest ("OpCo Unit") in DBR Land Holdings LLC ("OpCo") may be redeemed (along with the cancellation of a corresponding Class B share) for, subject to certain restrictions in the amended and restated limited liability company agreement of OpCo (the "OpCo LLCA"), newly issued Class A shares on a one-for-one basis or for a cash payment to be determined pursuant to the OpCo LLCA for each OpCo Unit redeemed. The OpCo Units do not expire. ( 4 )Includes 57,901,603 OpCo Units that will be directly held by LandBridge Holdings, of which, as described in Footnotes 1 and 2 to this Form 3, the reporting person may be deemed to be the beneficial owner thereof. The reporting person disclaims beneficial ownership of OpCo Units in excess of his pecuniary interest therein, if any.

Remarks: This Form 3 is being filed in connection with the effectiveness of the Registration Statement on Form S-1 (Registration No. 333-279893) of the Issuer.Exhibit List: Exhibit 24.1 - Power of Attorney

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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