Solaris Energy Infrastructure names new CFO

Solaris Energy Infrastructure, Inc. appointed Stephan E. Tompsett as Chief Financial Officer and principal financial officer effective February 12, 2026.

Rhea-AI Filing Summary

Solaris Energy Infrastructure, Inc. appointed Stephan E. Tompsett as Chief Financial Officer and principal financial officer effective February 12, 2026. He brings prior CFO experience at Aris Water Solutions, Limetree Bay Energy and EagleClaw Midstream, along with earlier treasury and investment banking roles.

The company states there are no family relationships, side arrangements or related-party transactions tied to his appointment. Compensation terms for Mr. Tompsett are still being finalized and will be disclosed in a later filing. Former CFO Kyle Ramachandran will focus on leading Solaris Power Solutions while continuing as President.

The company also entered into an Indemnification Agreement with Mr. Tompsett, under which Solaris will indemnify him to the fullest extent permitted under Delaware law and advance certain expenses related to covered proceedings.

Insights

Corporate governance and energy infrastructure analyst

Solaris adds an experienced CFO while retaining prior CFO in an operating role, signaling continuity with added financial depth.

Solaris Energy Infrastructure is reshaping its senior finance leadership by appointing Stephan Tompsett as Chief Financial Officer and principal financial officer. His background spans multiple CFO roles at energy, midstream and refining businesses, which suggests familiarity with capital-intensive, infrastructure-focused models.

The prior CFO, Kyle Ramachandran, is redeployed to concentrate on the Solaris Power Solutions segment while remaining President, so financial oversight shifts without losing institutional knowledge. The indemnification agreement for Tompsett follows a common pattern for Delaware corporations, providing legal and expense protection tied to his service.

Future company filings are expected to outline Tompsett’s finalized compensation package. Those details will clarify how Solaris structures incentives for its new finance leader relative to growth, capital allocation and risk management priorities in upcoming reporting periods.

8-K Event Classification

2 items: 5.02, 9.01

2 items

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Solaris Energy Infrastructure (SEI) announce in this 8-K filing?

Solaris Energy Infrastructure appointed Stephan E. Tompsett as Chief Financial Officer and principal financial officer. The filing also notes that former CFO Kyle Ramachandran will remain President, and that the company entered into an indemnification agreement with Tompsett under Delaware law.

Who is Stephan E. Tompsett, the new CFO of Solaris Energy Infrastructure (SEI)?

Stephan E. Tompsett is the new Chief Financial Officer and principal financial officer. He previously served as CFO of Aris Water Solutions, Limetree Bay Energy and EagleClaw Midstream, and earlier held senior finance and treasury roles at Andeavor and began his career as an investment banker at JPMorgan.

What happens to former Solaris Energy Infrastructure (SEI) CFO Kyle Ramachandran?

Kyle Ramachandran ceased serving as Chief Financial Officer to focus on Solaris’s power business. He remains the company’s President and continues to lead the Solaris Power Solutions segment, providing operational continuity while financial leadership transitions to the newly appointed CFO, Stephan Tompsett.

Did Solaris Energy Infrastructure (SEI) disclose Stephan Tompsett’s compensation package?

The company has not yet finalized Stephan Tompsett’s compensation related to his CFO appointment. The filing states Solaris will disclose his compensation terms in a subsequent filing made under the Exchange Act once those details are completed and, to the extent required, become reportable.

Does Solaris Energy Infrastructure (SEI) report any related-party transactions with Stephan Tompsett?

Solaris states it is not aware of any transaction involving Stephan Tompsett requiring disclosure under Item 404(a) of Regulation S-K. The filing also notes there are no family relationships or appointment arrangements with other persons tied to his role as Chief Financial Officer.

What is the indemnification agreement Solaris Energy Infrastructure (SEI) signed with Stephan Tompsett?

Solaris entered into an indemnification agreement with Stephan Tompsett in connection with his CFO appointment. It requires the company to indemnify him to the fullest extent permitted under Delaware law and to advance expenses for proceedings where he may be entitled to indemnification for actions taken in his corporate role.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/17/2026 - 04:02 PM Learn about SEC filing dates

false 0001697500 0001697500 2026-02-12 2026-02-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 12, 2026

SOLARIS ENERGY INFRASTRUCTURE, INC.

(Exact name of registrant as specified in charter)

Delaware		001-38090		81-5223109
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

9651 Katy Freeway, Suite 300

Houston, Texas 77024

(Address of principal executive offices)

(Zip Code)

(281) 501-3070

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Class A Common Stock, $0.01 par value		“SEI”		New York Stock Exchange
Indicate by check mark
				NYSE Texas, Inc.

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Appointment of Chief Financial Officer and Principal Financial Officer

On February 12, 2026 (the “Effective Date”), the Board of Directors (the “Board”) of Solaris Energy Infrastructure, Inc. (the “Company”) appointed Stephan E. Tompsett as Chief Financial Officer of the Company. Mr. Tompsett will serve as the principal financial officer of the Company.

Prior to joining the Company, Mr. Tompsett, age 49, served as the Chief Financial Officer of Aris Water Solutions, Inc. (formerly NYSE: ARIS) from September 2022 until October 2025. From May 2021 until May 2022, Mr. Tompsett served as Chief Financial Officer of Limetree Bay Energy, a large-scale refinery, terminal and logistics hub located in the U.S. Virgin Islands. During his tenure at Limetree Bay Energy, Mr. Tompsett was a member of the turnaround management team responsible for leading the financial restructuring and eventual Chapter 11 bankruptcy filing and sale of Limetree Bay Refining, and the separation and recapitalization of Limetree Bay Terminals. Prior to this, Mr. Tompsett served as the Chief Financial Officer and Treasurer of EagleClaw Midstream Ventures, LLC, a Blackstone portfolio company engaged in natural gas gathering, transportation, and processing in the Delaware Basin from March 2019 to April 2021. Mr. Tompsett served as Vice President and Treasurer of Andeavor (formerly Tesoro Corporation), a Fortune 500 independent refining, marketing and logistics company from September 2016 to October 2018. He began his career at JPMorgan as an investment banker. Mr. Tompsett holds a Master of Business Administration degree from the Red McCombs School of Business at the University of Texas at Austin, and a Bachelor of Science degree in Biology and Mathematics from the University of Texas at Austin.

There are no family relationships between Mr. Tompsett and any director or executive officer of the Company or any person nominated or chosen by the Company to become a director or executive officer. There are no arrangements or understandings between Mr. Tompsett and any other person pursuant to which Mr. Tompsett was appointed as the Company’s Chief Financial Officer. The Company is not aware of any transaction involving Mr. Tompsett that would require disclosure under Item 404(a) of Regulation S-K promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

The Company has not entered into any material plan, contract or arrangement with Mr. Tompsett, as the terms of Mr. Tompsett’s compensation in connection with his appointment as Chief Financial Officer are still being finalized. To the extent required under applicable rules, the Company will disclose any compensation terms in a subsequent filing to be made by the Company under the Exchange Act.

In connection with Mr. Tompsett’s appointment, as of the Effective Date, Kyle Ramachandran ceased serving as the Company’s Chief Financial Officer, a position he has held since the Company’s initial public offering, in order to focus on the continued growth of the Company’s power business. Mr. Ramachandran will continue to serve as the Company’s President and head of the Company’s Solaris Power Solutions segment.

Indemnification Agreement

In connection with Mr. Tompsett’s appointment as Chief Financial Officer, the Company entered into an Indemnification Agreement (“Indemnification Agreement”) with Mr. Tompsett. The Indemnification Agreement requires the Company to indemnify Mr. Tompsett to the fullest extent permitted under Delaware law against liability that may arise by reason of his service to the Company and to advance expenses incurred as a result of any proceeding against him as to which he could be indemnified.

The foregoing description of the Indemnification Agreement is not complete and is qualified in its entirety by reference to the full text of the Indemnification Agreement, which is attached as Exhibit 10.1 to this Current Report on Form 8-K, and incorporated herein by reference.

2

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.		Description
10.1		Indemnification Agreement (Stephan E. Tompsett).
104		Cover Page Interactive Data File (embedded within Inline XBRL document).

3

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: February 17, 2026

SOLARIS ENERGY INFRASTRUCTURE, INC.
By:		/s/ William A. Zartler
Name:		William A. Zartler
Title:		Chairman and Co-Chief Executive Officer

4

Filing Exhibits & Attachments

4 documents

Agreements & Contracts

• EX-10.1 EX-10.1 69.7 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 2.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 17.6 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 11.0 KB