Solaris Energy Infrastructure, Inc. (SEI) Co-CEO adds 3,669 shares

Rhea-AI Filing Summary

Solaris Energy Infrastructure, Inc. reported that a director and Co‑Chief Executive Officer acquired 3,669 shares of Class A common stock on 12/17/2025 at $40.89 per share. This transaction increased the insider’s direct beneficial ownership to 141,080 Class A shares.

This total includes 125,000 shares of Class A common stock subject to previously granted restricted stock awards that remain subject to vesting.

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^*

Brock Amanda M

(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
X	Officer (give title below)		Other (specify below)
	Co-Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/17/2025

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	12/17/2025		P		3,669	A	$40.89	141,080(1)	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

Explanation of Responses:

1. Includes 125,000 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

	/s/ Christopher M. Powell, Attorney-in-Fact	12/18/2025
	** 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.
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FAQ

What insider transaction did Solaris Energy Infrastructure, Inc. (SEI) report?

A reporting person who is both a director and Co-Chief Executive Officer acquired 3,669 shares of Solaris Energy Infrastructure, Inc. Class A common stock on 12/17/2025.

At what price were the Solaris Energy Infrastructure (SEI) shares acquired?

The 3,669 shares of Class A common stock were acquired at a price of $40.89 per share.

How many Solaris Energy Infrastructure (SEI) shares does the insider beneficially own after the transaction?

Following the reported transaction, the insider beneficially owns 141,080 shares of Solaris Energy Infrastructure, Inc. Class A common stock.

How many Solaris Energy Infrastructure (SEI) shares are subject to restricted stock awards?

The filing states that the beneficial ownership amount includes 125,000 shares of Class A common stock subject to previously granted restricted stock awards that remain subject to vesting.

What is the reporting person’s relationship to Solaris Energy Infrastructure, Inc. (SEI)?

The reporting person is identified as both a Director and an Officer, with the title Co-Chief Executive Officer of Solaris Energy Infrastructure, Inc.

Was this Solaris Energy Infrastructure (SEI) insider filing made by a single reporting person?

Yes. The form indicates it is filed by one reporting person, not by more than one reporting person.