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NET Power Inc.

For the period ended Jun 3, 2026. Filed Apr 23, 2026.

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About this filing

What shareholders are asked to vote on at a company's meeting. It is where to find what directors and top executives are paid, and who owns the most shares.

Jun 3, 2026 · Filed Apr 23, 2026

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NPWR$0.81+5.8%Stored close · as of Nov 6, 2026
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒

Filed by a party other than the Registrant ☐

Check the appropriate box:

☐Preliminary Proxy Statement
☐Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☒Definitive Proxy Statement
☐Definitive Additional Materials
☐Soliciting Material under §240.14a-12

NET POWER INC.

(NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

(NAME OF PERSON(S) FILING PROXY STATEMENT, IF OTHER THAN THE REGISTRANT)

Payment of Filing Fee (Check all boxes that apply):

☒No fee required.
☐Fee paid previously with preliminary materials.
☐Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS AND

2026 PROXY STATEMENT

NOTICE OF 2026

ANNUAL MEETING OF STOCKHOLDERS

Date: June 3, 2026 Time: 10:00 a.m. Eastern Time Place: 320 Roney Street, Suite 200Durham, NC 27701 Record Date: April 10, 2026Items of Business: 1. To elect the three directors named in the Proxy Statement to serve as Class III directors until the 2029 annual meeting of stockholders or until their respective successors are elected and qualified 2. To ratify the appointment of KPMG LLP as our independent auditor for the fiscal year ending December 31, 2026 3. To transact such other business as may properly come before the meeting or any adjournment or postponement thereof

The Board of Directors has fixed April 10, 2026 as the record date for determining stockholders entitled to receive notice of, and to vote at, the 2026 annual meeting of stockholders (“Annual Meeting” or “Annual Meeting of Stockholders”) or any adjournment or postponement thereof. Only stockholders of record at the close of business on that date will be entitled to notice of, and to vote at, the Annual Meeting.

YOUR VOTE IS IMPORTANT

www.proxyvote.com1-800-690-6903
Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717

Important Notice Regarding the Availability of Proxy Materials for our Annual Meeting of Stockholders to be Held on June 3, 2026. The Proxy Statement is available at www.proxyvote.com.

By Order of the Board of Directors

Peter J. (Jeff) Bennett

Chairman

April 23, 2026

PROXY STATEMENT SUMMARY

VOTING MATTERS

Items of Business: · Our Board of Directors Recommends You Vote: · Page Reference(for more detail)
1To elect the three directors named in the Proxy Statement to serve as Class III directors until the 2029 annual meeting of stockholders or until their respective successors are elected and qualifiedFOR the election of each director nominee4
2To ratify the appointment of KPMG LLP as our independent auditor for the fiscal year ending December 31, 2026FOR the ratification of the appointment33
3To transact such other business as may properly come before the meeting or any adjournment or postponement thereof

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