Solaris Energy Infrastructure (SEI) director reports sale and 42,734 exchangeable units

Rhea-AI Filing Summary

Solaris Energy Infrastructure director reports stock sale and updated holdings. A company director sold 11,277 shares of Class A common stock of Solaris Energy Infrastructure, Inc. on 12/10/2025 at a weighted average price of $53.03 per share, with individual trades ranging from $53.00 to $53.17.

After this sale, the director beneficially owns 5,696 shares of Class A common stock subject to previously granted restricted stock awards that still need to vest, plus 800 Class A shares held indirectly through a spouse. The director also holds 42,734 units of Solaris Energy Infrastructure, LLC together with the same number of Class B common shares, which carry voting rights but no economic rights and can be exchanged, under the Solaris LLC agreement, into an equal number of Class A common shares.

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

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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^*

BURKE JAMES R

(Last) (First) (Middle)

9651 KATY FREEWAY

SUITE 300

(Street)

HOUSTON TX 77024

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
12/10/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	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 A Common Stock	12/10/2025		S		11,277	D	$53.03(1)	5,696(2)	D
Class A Common Stock								800	I	Spouse
Class B Common Stock(3)								42,734	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	(4)							(4)	(4)	Class A Common Stock	42,734		42,734	D

Explanation of Responses:

1. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $53.00 to $53.17 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. 5,696 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

3. Each share of Class B common stock has no economic rights but entitles the holder to one vote on all matters to be voted on by the stockholders generally.

4. 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 on May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock of the Issuer) are exchangeable from time to time for shares of Class A common stock of the Issuer.

	/s/ Christopher M. Powell, Attorney-in-Fact	12/12/2025
	** 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 Solaris Energy Infrastructure (SEI) disclose?

A director of Solaris Energy Infrastructure, Inc. reported selling 11,277 shares of Class A common stock on 12/10/2025 at a weighted average price of $53.03 per share.

At what prices were the Solaris Energy Infrastructure (SEI) shares sold?

The director’s Class A common stock sale had a weighted average price of $53.03 per share, with individual trades executed between $53.00 and $53.17 per share.

How many Solaris Energy Infrastructure (SEI) shares does the director own after the sale?

Following the reported sale, the director beneficially owns 5,696 Class A shares subject to restricted stock awards, 800 Class A shares indirectly through a spouse, and interests linked to 42,734 Class A shares via Solaris Energy Infrastructure, LLC units and Class B shares.

What is the role of the reporting person at Solaris Energy Infrastructure (SEI)?

The reporting person is identified as a director of Solaris Energy Infrastructure, Inc. on the insider ownership report.

What rights do Solaris Energy Infrastructure (SEI) Class B common shares provide?

Each share of Class B common stock has no economic rights but gives the holder one vote on all matters submitted to stockholders.

How can Solaris Energy Infrastructure, LLC units be converted into SEI Class A shares?

Under the Solaris Energy Infrastructure, LLC agreement, the LLC units, together with a corresponding number of Class B common shares, are exchangeable from time to time into an equal number of Class A common shares of the company.