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

Rhea-AI Filing Summary

Christopher M. Powell, Chief Legal Officer of Solaris Energy Infrastructure, Inc., reported a sale of 12,750 shares of Class A common stock on 08/26/2025 at a price of $30.00 per share. After this transaction he beneficially owns 130,615 Class A shares. The filing notes that 85,467 of those shares are from previously granted Restricted Stock Awards that remain subject to vesting. The Form 4 is signed and dated 08/28/2025 and indicates the filing was made by one reporting person who is also an officer and director.

Positive

• Timely and complete disclosure of the sale and remaining beneficial ownership on a signed Form 4
• Transparency about restricted stock: 85,467 shares are identified as restricted stock awards subject to vesting

Negative

• Officer sale of 12,750 shares on 08/26/2025 at $30.00 may be viewed negatively by some investors

Insights

Financial Analyst

TL;DR: Officer disclosed an open-market sale of 12,750 shares at $30, leaving 130,615 shares owned, including unvested awards.

The report documents a single sale transaction by the company’s Chief Legal Officer, showing realized disposition of 12,750 Class A shares at $30.00 on 08/26/2025 and residual beneficial ownership of 130,615 shares. The filing also clarifies that a substantial portion (85,467 shares) are restricted stock awards that remain subject to vesting, which is relevant when assessing the holder’s near-term liquidity versus long-term alignment with shareholders. Disclosure appears standard and complete for a Form 4.

Corporate Governance Expert

TL;DR: Timely Form 4 filed for an officer sale; notable that most retained shares are restricted and subject to vesting.

The Form 4 shows compliance with Section 16 reporting: the officer sold 12,750 shares and reported remaining ownership, with an explicit footnote about 85,467 restricted shares. That distinction matters for governance review because vested versus unvested holdings affect incentives. The filing identifies the reporting person as an officer and director and is singularly filed, meeting standard disclosure practices. No other contractual plans or derivative transactions are reported.

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^*

Powell Christopher 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)

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

3. Date of Earliest Transaction (Month/Day/Year)
08/26/2025

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	08/26/2025		S		12,750	D	$30	130,615(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 85,467 shares of Class A common stock from previously granted Restricted Stock Awards that remain subject to vesting.

	/s/ Christopher M. Powell	08/28/2025
	** 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 transaction did Christopher M. Powell report in the Form 4?

He reported a sale of 12,750 shares of Class A common stock on 08/26/2025 at a price of $30.00 per share.

How many shares does Christopher M. Powell beneficially own after the sale?

He beneficially owns 130,615 shares of Class A common stock following the reported transaction.

Does the filing indicate any unvested or restricted shares?

Yes. The filing states that 85,467 of the shares are from previously granted Restricted Stock Awards that remain subject to vesting.

What is Christopher M. Powell’s role at the company?

The Form 4 identifies him as an officer (listed as Chief Legal Officer) and a director of Solaris Energy Infrastructure, Inc.

When was the Form 4 signed?

The signature block is dated 08/28/2025.