[Form 4] Solaris Oilfield Infrastructure, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Solaris Energy Infrastructure, Inc. (SEI) insiders KTR Management Company, LLC and John Tuma reported transactions dated 08/06/2025. The filing discloses that KTR redeemed Solaris Energy Infrastructure, LLC units together with corresponding Class B common stock and received 4,000,000 shares of Class A common stock at no cash cost. Immediately thereafter the reporting person sold 4,000,000 Class A shares at $29.50 per share, resulting in 0 remaining shares from that tranche. Following the reported transactions KTR beneficially owns 4,114,783 shares. The Form clarifies that Class B shares carry one vote each but no economic rights, and that John Tuma owns KTR and has sole authority to vote or dispose of the shares held by KTR.

Positive

• KTR retains beneficial ownership of 4,114,783 shares
• Form 4 discloses conversion of 4,000,000 Solaris LLC Units into Class A common stock

Negative

• KTR sold 4,000,000 Class A common shares at $29.50 per share
• Class B shares held by the reporting persons were cancelled upon redemption, reducing those specific holdings

Insights

Financial Analyst

TL;DR: Director converted units into 4,000,000 Class A shares and sold those 4,000,000 shares at $29.50; KTR still owns 4,114,783 shares.

The Form 4 documents a conversion/redemption of Solaris LLC units into Class A shares followed by an immediate sale of the same 4,000,000 Class A shares at $29.50 per share. The reporting entity, KTR Management Company, LLC, continues to hold 4,114,783 shares after the transactions. These are explicit, material insider transactions showing both conversion of interests and a large disposition; the filing also clarifies voting/economic distinctions for Class B stock and the ownership/control relationship of John Tuma to KTR.

Corporate Governance Expert

TL;DR: Insider ownership/control remains concentrated: John Tuma controls KTR and reported both conversion of units and a large sale, retaining 4,114,783 shares.

The disclosure confirms that John Tuma owns all issued equity interests in KTR and has sole authority to vote or dispose of the securities held by KTR. The Form 4 details the mechanics: Class B shares (which carry voting rights but no economic rights) were cancelled upon redemption with Solaris LLC units and converted into Class A shares, and a block of 4,000,000 Class A shares was sold at $29.50. The filing provides clear, direct statements about ownership and transaction quantities without attributing motive.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

KTR Management Company, LLC

(Last) (First) (Middle)

327 N. COMMERCE STREET

(Street)

CENTERVILLE TX 75833

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
08/06/2025

4. If Amendment, Date of 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

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)	08/06/2025		J(2)		4,000,000	D	$0(2)	4,114,783(3)	D(4)
Class A Common Stock	08/06/2025		C(2)		4,000,000	A	$0(2)	4,000,000	D(4)
Class A Common Stock	08/06/2025		S		4,000,000	D	$29.5	0	D

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 Securities Underlying Derivative Security (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: 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)	08/06/2025		C(2)			4,000,000	(2)	(2)	Class A Common Stock	4,000,000	$0	4,114,783	D(4)

1. Name and Address of Reporting Person^*

KTR Management Company, LLC

(Last) (First) (Middle)

327 N. COMMERCE STREET

(Street)

CENTERVILLE TX 75833

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Tuma John

(Last) (First) (Middle)

327 N. COMMERCE STREET

(Street)

CENTERVILLE TX 75833

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

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.

	/s/ Christopher M. Powell, Attorney-in-Fact	08/08/2025
	KTR Management Company, LLC By: /s/ Christopher M. Powell	08/08/2025
	** Signature of Reporting Person	Date
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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FAQ

What transactions were reported on the Form 4 for Solaris Energy Infrastructure (SEI)?

The Form 4 reports that KTR redeemed Solaris LLC units and corresponding Class B shares, received 4,000,000 Class A shares, and sold 4,000,000 Class A shares at $29.50 each on 08/06/2025.

How many Class A shares did KTR acquire and at what price?

KTR acquired 4,000,000 Class A common shares at an effective price of $0.00 per share as part of the unit redemption/conversion.

How many Class A shares were sold and at what price?

The reporting person sold 4,000,000 Class A common shares at $29.50 per share.

How many shares does KTR beneficially own after the reported transactions?

Following the reported transactions KTR beneficially owns 4,114,783 shares of the issuer.

Who controls KTR Management Company, LLC and can vote or dispose of the shares?

The Form states that John Tuma owns all issued and outstanding equity interests of KTR and has sole authority to vote or dispose of the shares held by KTR.