Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

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1. Name and Address of Reporting Person * KTR Management Company, LLC 2. Issuer Name and Ticker or Trading Symbol Solaris Energy Infrastructure, Inc. [SEI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 327 N. COMMERCE STREET 3. Date of Earliest Transaction (Month/Day/Year) 11/04/2025 (Street) CENTERVILLE, TX 75833 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 Common Stock(1) 11/04/2025 J(2) 2,114,783 D $ 0 (2) 2,000,000(3) D(4) Class A Common Stock 11/04/2025 C(2) 2,114,783 A $ 0 (2) 2,114,783 D(4) Class A Common Stock 11/04/2025 S 2,114,783 D $50.15 0 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Solaris Energy Infrastructure, LLC Units(2)

(2)

11/06/2025

C(2)

2,114,783

(2)

(2)

Class A Common Stock

2,114,783

$ 0

2,000,000

D(4)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KTR Management Company, LLC 327 N. COMMERCE STREET CENTERVILLE, TX 75833		X
Tuma John 327 N. COMMERCE STREET CENTERVILLE, TX 75833		X

Signatures

/s/ Christopher M. Powell, Attorney-in-Fact		11/06/2025
**Signature of Reporting Person		Date
KTR Management Company, LLC By: /s/ Christopher M. Powell		11/06/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Each share of Class B common stock, par value $0.00 per share ("Class B common stock") of Solaris Energy Infrastructure, Inc. (the "Issuer") has no economic rights but entitles the holder to one vote on all matters to be voted on by the stockholders generally.
(2)	Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Energy Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, as amended from time to time, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission (the "SEC") on May 17, 2017, units of Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of the Issuer's Class B common stock) are exchangeable from time to time for shares of the Issuer's Class A common stock, par value $0.01 per share ("Class A common stock"). The shares of Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the reporting persons of its Solaris LLC Units (together with a corresponding number of shares of Class B common stock) for the shares of Class A common stock reported herein.
(3)	Includes securities received in connection with transactions contemplated by the Contribution Agreement, dated July 9, 2024, by and among the Issuer, Solaris LLC, John A. Johnson, John Tuma, J Turbines and KTR Management Company, LLC ("KTR"), a Texas limited liability company. On September 11, 2024, J Turbines and KTR each received, among other things, 8,114,783 shares of the Issuer's Class B common stock, together with a corresponding number of Solaris LLC Units in exchange for all of the issued and outstanding equity interests of Mobile Energy Rentals LLC, a Texas limited liability company, as more fully described in the Schedule 13D filed by the reporting persons with the SEC on September 13, 2024.
(4)	Represents securities held directly by KTR. John Tuma owns all of the issued and outstanding equity interests of KTR and has the sole authority to vote or dispose of the shares held by KTR in his sole discretion. Mr. Tuma may therefore be deemed to beneficially own the securities of the Issuer held directly by KTR.

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