Sec Form 3 Filing - Capobianco David N @ WaterBridge Infrastructure LLC - 2025-09-17

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 WaterBridge Infrastructure LLC [ WBI] 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 WATERBRIDGE INFRASTRUCTURE LLC, 5555 SAN FELIPE STREET, SUITE 1200 3. Date of Earliest Transaction (MM/DD/YY) 09/17/2025 (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 A Shares 3,411,735 I See Footnotes ( 1 ) ( 2 ) ( 3 ) ( 4 ) Class B Shares 58,682,925 I See Footnotes ( 1 ) ( 2 ) ( 3 ) ( 4 )

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 OpCo Units ( 5 ) ( 5 ) ( 5 ) Class A Shares 58,682,925 I See Footnotes ( 1 ) ( 2 ) ( 3 ) ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Capobianco David N C/O WATERBRIDGE INFRASTRUCTURE LLC 5555 SAN FELIPE STREET, SUITE 1200 HOUSTON, TX77056 X X Signatures /s/ David Capobianco 09/17/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes (i) 3,411,735 Class A Shares and 11,063,925 Class B Shares held of record by WBR Holdings LLC ("WBR Holdings"), (ii) 41,425,200 Class B Shares held of record by NDB Holdings LLC ("NDB Holdings") and (iii) 6,193,800 Class B Shares held of record by Desert Environmental Holdings LLC ("Desert Holdings"). ( 2 )WaterBridge Resources LLC is the managing member of WBR Holdings and is controlled by a board of managers consisting of four members. Funds controlled by Five Point Energy GP I LP ("GP I") indirectly beneficially own a majority of the capital interests in WaterBridge Resources LLC and have a right to appoint a majority of the members of the board of managers. Five Point Energy GP I LLC ("GP I LLC") is the sole general partner of GP I, and David N. Capobianco is the sole member of GP I LLC. As a result, each of WaterBridge Resources LLC, GP I, GP I LLC and Mr. Capobianco may be deemed to beneficially own the securities held by WBR Holdings. Each such entity and individual disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein, if any. ( 3 )WaterBridge NDB LLC is the managing member of NDB Holdings and is controlled by a board of managers consisting of four members. Funds controlled by Five Point Energy GP II LP ("GP II") and Five Point Energy GP III LP ("GP III") indirectly beneficially own a majority of the capital interests in NDB Holdings and have a right to appoint a majority of the members of the board of managers. Five Point Energy GP II LLC ("GP II LLC") is the sole general partner of GP II and Five Point Energy GP III LLC ("GP III LLC") is the sole general partner of GP III. David N. Capobianco is the sole member of each of GP II LLC and GP III LLC. As a result, each of GP II, GP III, GP II LLC, GP III LLC and Mr. Capobianco may be deemed to beneficially own the securities held by NDB Holdings. Each such entity and individual disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein, if any. ( 4 )Desert Holdings is controlled by a board of managers consisting of four members. Funds controlled by GP III indirectly beneficially own a majority of the capital interests in Desert Holdings and have a right to appoint a majority of the members of the board of managers of Desert Holdings. As a result, each of GP III, GP III LLC and Mr. Capobianco may be deemed to beneficially own the securities held by Desert Holdings. Each such entity and individual disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein, if any. ( 5 )Each OpCo Unit may be redeemed at the request of the holder for either Class A Shares on a one-to-one basis or for a cash payment, as determined by the OpCo LLC Agreement. Upon redemption of OpCo Units, an equal number of Class B Shares will be canceled. The OpCo Units do not expire.

Remarks: Exhibit 24 - Power of Attorney.

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

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