Solaris Energy Infrastructure (SEI) co-CEO receives 135,000-share stock award

Rhea-AI Filing Summary

Brock Amanda M reported acquisition or exercise transactions in this Form 4 filing.

Solaris Energy Infrastructure, Inc. reported that Co-Chief Executive Officer Amanda M. Brock received a grant of 135,000 shares of Class A common stock as a restricted stock award at a price of $0.00 per share.

The award was granted under the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan and vests in three equal annual installments on the first three anniversaries of the grant date. After this grant, Brock directly holds 276,080 shares of Class A common stock, which includes 260,000 shares from earlier restricted stock awards that are still 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

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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)
03/01/2026

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	03/01/2026		A		135,000(1)	A	$0	276,080(2)	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. Restricted Stock Award pursuant to the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

2. Includes 260,000 shares of Class A common stock from previously granted Restricted Stock Awards that remain subject to vesting.

Remarks:

	/s/ Christopher M. Powell, Attorney-in-Fact	03/03/2026
	** 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 report for Amanda M. Brock?

Solaris Energy Infrastructure, Inc. reported that Co-Chief Executive Officer Amanda M. Brock received a restricted stock award of 135,000 Class A shares. The shares were granted at a price of $0.00 per share as equity compensation under the company’s Long Term Incentive Plan.

How many SEI shares does Amanda M. Brock hold after this grant?

After the restricted stock grant, Amanda M. Brock directly holds 276,080 shares of Solaris Energy Infrastructure, Inc. Class A common stock. This total includes 260,000 shares from previously granted restricted stock awards that remain subject to vesting conditions.

What are the vesting terms of Amanda M. Brock’s new SEI restricted stock award?

The 135,000-share restricted stock award to Amanda M. Brock vests in three equal annual installments. Vesting occurs on each of the first three anniversaries of the grant date, tying the equity compensation to continued service over that multi-year period.

Under which plan was the SEI restricted stock granted to Amanda M. Brock?

The restricted stock granted to Amanda M. Brock was issued pursuant to the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan. This plan provides equity-based compensation, such as restricted stock awards, designed to align executive interests with long-term shareholder value.

Did Amanda M. Brock pay any cash for the new SEI shares?

No cash payment was made for the new Solaris Energy Infrastructure, Inc. shares. The 135,000 Class A shares were granted to Amanda M. Brock as a restricted stock award at a reported price of $0.00 per share, reflecting compensatory equity, not an open-market purchase.

Are all of Amanda M. Brock’s SEI shares fully vested?

No, not all of Amanda M. Brock’s Solaris Energy Infrastructure, Inc. shares are fully vested. Her holdings include 260,000 shares from earlier restricted stock awards that remain subject to vesting, in addition to the new 135,000-share restricted stock grant with three-year installment vesting.