Solaris Energy Infrastructure (SEI) director reports sale of 2,300 shares

Rhea-AI Filing Summary

Solaris Energy Infrastructure, Inc. reported that one of its directors sold 2,300 shares of Class A common stock on 12/17/2025 at a price of $44.25 per share.

After this sale, the director beneficially owns 50,039 shares of Class A common stock in direct form. This amount includes 6,275 shares subject to previously granted restricted stock awards that remain subject to vesting conditions.

Insider Trade Summary

Net Seller: 2,300 shares ($101,775)

Net Sell 1 txn

Insider Argo Laurie H

Role Director

Sold 2,300 shs ($102K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	2,300	$44.25	$102K

Holdings After Transaction: Class A Common Stock — 50,039 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 12/18/2025 - 04:03 PM Learn about SEC filing dates

FAQ

What insider transaction did SEI report in this Form 4 filing?

A director of Solaris Energy Infrastructure, Inc. (SEI) reported the sale of 2,300 shares of Class A common stock.

On what date did the SEI director sell shares in this insider transaction?

The transaction occurred on 12/17/2025, as disclosed in the filing.

What price did the SEI director receive per share in this sale?

The director sold the Class A common stock at a price of $44.25 per share.

How many SEI shares does the director own after the reported transaction?

Following the sale, the director beneficially owns 50,039 shares of SEI Class A common stock in direct ownership.

Does the SEI director hold any restricted stock after this transaction?

Yes. The reported holdings include 6,275 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

What is the relationship of the reporting person to Solaris Energy Infrastructure, Inc.?

The reporting person is identified as a Director of Solaris Energy Infrastructure, Inc.

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^*

Argo Laurie H

(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)
12/17/2025

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		S		2,300	D	$44.25	50,039(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 6,275 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.
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.