Sec Form 4/A Filing - TEAGUE AJ @ Solaris Energy Infrastructure, Inc. - 2025-03-06

FORM 4/A 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 TEAGUE AJ 2. Issuer Name and Ticker or Trading Symbol Solaris Energy Infrastructure, Inc. [ SEI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 9651 KATY FREEWAY SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 03/06/2025 (Street) HOUSTON, TX77024 4. If Amendment, Date Original Filed (MM/DD/YY) 03/07/2025 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 Common Stock 03/06/2025 P 2,000 A $ 24.02 ( 1 ) 96,459 ( 2 ) D ( 3 ) ( 4 ) Class A Common Stock 03/06/2025 P 2,000 A $ 24.18 ( 5 ) 4,000 I ( 3 ) ( 4 ) Spouse

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other TEAGUE AJ 9651 KATY FREEWAY SUITE 300 HOUSTON, TX77024 X Signatures /s/ Christopher M. Powell, Attorney-in-Fact 04/18/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $23.99 to $24.02 per share. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. ( 2 )Includes 12,372 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting. ( 3 )On March 7, 2025, the reporting person filed a Form 4 (the "Original Form 4") with the SEC. On March 10, 2025, the reporting person filed with the SEC an amendment on Form 4/A (the "First Amendment") solely to correct an administrative error which misreported the purchases of a collective 4,000 shares of Class A common stock using the transaction code of "A," when in fact this was an open market purchase with transaction code of "P," however, the Original Form 4 also mistakenly reported that the reporting person's spouse indirectly held 100,459 shares of Class A common stock and the First Amendment then mistakenly reported that the reporting person's spouse indirectly held 102,459 shares of Class A common stock. ( 4 )(Continued from footnote 3) This second amendment on Form 4/A (this "Second Amendment") is being filed to correct the ownership in both the Original Form 4 and the First Amendment to show that the reporting person (i) directly holds 96,459 shares of Class A common stock following the reporting person's purchase of an additional 2,000 shares of Class A common stock in an open market purchase on March 6, 2025 and (ii) indirectly owns 4,000 shares of Class A common stock following the purchase of an additional 2,000 shares of Class A common stock in an open market purchase on March 6, 2025 by the reporting person's spouse. ( 5 )The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $24.16 to $24.19 per share. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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