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

Rhea-AI Filing Summary

Solaris Energy Infrastructure (SEI): Form 4 insider activity. An affiliate director, KTR Management Company, LLC, exchanged 2,114,783 Solaris LLC Units (with corresponding Class B shares) for 2,114,783 shares of Class A common stock on 11/04/2025, then sold 2,114,783 Class A shares at $50.15 per share the same day. Class B shares carry one vote and no economic rights and were cancelled one-for-one upon exchange. After the transactions, Class A holdings were 0, while 2,000,000 Class B shares and an equivalent 2,000,000 Solaris LLC Units remained beneficially owned by the filer.

Insights

Equity capital markets analyst

Insider exchanged and sold 2.11M Class A shares; units remain.

The reporting holder converted 2,114,783 Solaris LLC Units (paired with Class B votes) into an equal number of Class A shares and sold all 2,114,783 at $50.15. This reflects activity within an Up‑C structure where Class B provides voting only and is cancelled on exchange.

Following the sale, the filer reported 0 Class A and continued to beneficially own 2,000,000 Solaris LLC Units and 2,000,000 Class B shares. Any future exchanges would depend on holder decisions and permitted terms.

The transaction directs sale proceeds to the selling holder, not the company. Impact on float or trading dynamics would hinge on any subsequent exchanges or sales disclosed in later filings.

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
Estimated average burden
hours per response:			0.5

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)
11/04/2025

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)	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

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)	11/06/2025		C(2)			2,114,783	(2)	(2)	Class A Common Stock	2,114,783	$0	2,000,000	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	11/06/2025
	KTR Management Company, LLC By: /s/ Christopher M. Powell	11/06/2025
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did SEI (SEI) report on this Form 4?

The filer exchanged 2,114,783 Solaris LLC Units and corresponding Class B shares for 2,114,783 Class A shares, then sold 2,114,783 Class A shares at $50.15 on 11/04/2025.

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

2,114,783 Class A shares were sold at $50.15 per share on 11/04/2025.

How many SEI securities does the reporting person hold after these transactions?

0 Class A shares; 2,000,000 Class B shares and 2,000,000 Solaris LLC Units beneficially owned.

What are SEI Class B shares and how do they function?

Each Class B share has no economic rights and provides one vote; it is cancelled one-for-one when paired Solaris LLC Units are exchanged for Class A.

Who is the reporting person, and what is their relationship to SEI?

KTR Management Company, LLC is a director affiliate. John Tuma owns KTR and may be deemed to beneficially own its securities.

What prior transactions are referenced in the footnotes?

Footnotes reference a July 9, 2024 Contribution Agreement and September 11, 2024 issuances tied to Mobile Energy Rentals LLC.