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

Rhea-AI Filing Summary

Tompsett Stephan E reported acquisition or exercise transactions in this Form 4 filing.

Solaris Energy Infrastructure, Inc. granted its Chief Financial Officer, Stephan E. Tompsett, 30,000 shares of Class A common stock as a restricted stock award on February 12, 2026. The award was made at a cash price of $0 per share under the company’s Long Term Incentive Plan.

The restricted shares vest in three equal annual installments on the first three anniversaries of March 1, 2026. Following this grant, Tompsett beneficially owns 30,000 Class A shares, all of which remain subject to vesting conditions tied to this and prior restricted stock awards.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Tompsett Stephan E

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	30,000	$0.00	--

Holdings After Transaction: Class A Common Stock — 30,000 shares (Direct)

Footnotes (1)

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 from March 1, 2026. Includes 30,000 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

Form 4 Insider Transactions: What Each Field Means →

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^*

Tompsett Stephan E

(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 Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/12/2026

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	02/12/2026		A		30,000(1)	A	$0	30,000(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 from March 1, 2026.

2. Includes 30,000 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

Remarks:

	/s/ Christopher M. Powell, Attorney-in-Fact	02/17/2026
	** 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 Solaris Energy Infrastructure (SEI) report for its CFO?

Solaris Energy Infrastructure granted its CFO 30,000 Class A common shares as a restricted stock award. The grant was made at $0 per share under the Long Term Incentive Plan and represents an equity-based compensation award rather than an open-market stock purchase.

When was the 30,000-share restricted stock award to Solaris Energy Infrastructure (SEI)’s CFO granted?

The 30,000-share restricted stock award to the CFO was granted on February 12, 2026. This date marks the earliest reportable transaction, with vesting tied to anniversaries of March 1, 2026, as part of the company’s Long Term Incentive Plan.

How does the restricted stock granted to Solaris Energy Infrastructure (SEI)’s CFO vest?

The CFO’s 30,000 restricted shares vest in three equal annual installments. Vesting occurs on the first three anniversaries of March 1, 2026, meaning the award becomes fully vested over a three-year period, subject to continued satisfaction of the plan’s vesting conditions.

What is the CFO’s beneficial ownership after the Solaris Energy Infrastructure (SEI) grant?

After the reported grant, the CFO beneficially owns 30,000 shares of Class A common stock. These shares consist of restricted stock awards that remain subject to vesting, so the ownership reflects unvested equity compensation rather than fully unrestricted, freely tradable shares.

Did Solaris Energy Infrastructure (SEI)’s CFO pay cash for the 30,000 restricted shares?

The CFO did not pay cash for the 30,000 restricted shares; the price per share is reported as $0. This reflects a compensatory grant under the Long Term Incentive Plan, where value is delivered through equity subject to vesting instead of an open-market purchase.

Is the Solaris Energy Infrastructure (SEI) CFO’s 30,000-share award fully vested today?

The 30,000-share award is not fully vested at grant. It vests in three equal annual installments on the first three anniversaries of March 1, 2026, so the shares become available over time as vesting milestones are met.