Net Power grants CFO 529,801 stock units

The chief financial officer’s units vest in full on April 13, 2029, subject to continued employment and acceleration in certain circumstances.

Rhea-AI Filing Summary

Net Power Inc. (NPWR) reported a grant of 529,801 restricted stock units to Chief Financial Officer Ned Leland Shuman on April 13, 2026. Each unit represents the right to receive one share of Class A common stock. The units are the same ones reported as a holding on Shuman’s Form 3 filed May 27, 2026, and are not additional units.

Insider Trade Summary

Grant/Award: 529,801 shares

Grant/Award 1 txn

Insider Shuman Ned Leland

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1, F2	529,801	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 529,801 shares (Direct)

Footnotes (2)

1. F1. Represents restricted stock units granted on April 13, 2026 under the NET Power Inc. 2023 Omnibus Incentive Plan. Each restricted stock unit represents the right to receive one share of Class A common stock of the Issuer. The restricted stock units vest in full on April 13, 2029, subject to continued employment of the reporting person through that date and to accelerated vesting in certain circumstances.
2. F2. The reporting person became Chief Financial Officer of the Issuer effective April 13, 2026. The restricted stock units reported on this Form 4 are the same units reported as a holding on the Form 3 filed by the reporting person on May 27, 2026, and are not in addition to them. Due to administrative oversight, this Form 4 is being filed late.

Key Figures

Restricted stock units granted: 529,801 restricted stock units Shares per restricted stock unit: 1 Class A common share Full vesting date: April 13, 2029

3 metrics

Restricted stock units granted 529,801 restricted stock units Granted April 13, 2026

Shares per restricted stock unit 1 Class A common share Each unit represents the right to receive one share

Full vesting date April 13, 2029 Subject to continued employment and accelerated vesting in certain circumstances

Key Terms

Restricted Stock Units, 2023 Omnibus Incentive Plan, accelerated vesting

3 terms

Restricted Stock Units financial

"restricted stock units granted"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2023 Omnibus Incentive Plan financial

"under the NET Power Inc. 2023 Omnibus Incentive Plan"

accelerated vesting financial

"subject to continued employment ... and to accelerated vesting"

A contract feature that makes stock awards, options, or restricted shares become owned or exercisable earlier than the original schedule. It shortens or cancels the waiting period so recipients can sell, transfer, or exercise their equity sooner — think of a timed lock that is unlocked ahead of schedule. It matters to investors because it changes when shares enter the market, who controls them, and how much dilution or ownership concentration happens.

FAQ

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

How many RSUs did NPWR’s CFO receive?

Chief Financial Officer Ned Leland Shuman was granted 529,801 restricted stock units on April 13, 2026. They are the same units reported as a holding on his Form 3 filed May 27, 2026, and are not additional units.

When do NPWR’s CFO’s restricted stock units vest?

The restricted stock units vest in full on April 13, 2029, subject to Shuman’s continued employment through that date and accelerated vesting in certain circumstances.

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

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Available on EDGAR 10/08/2026 - 04:30 PM Accepted by SEC EDGAR 10/08/2026 - 04:30 PM Learn about SEC filing dates

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^*

Shuman Ned Leland

(Last) (First) (Middle)

C/O NET POWER INC.

11700 KATY FREEWAY, SUITE 700

(Street)

HOUSTON TEXAS 77079

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Net Power Inc. [ NPWR ]

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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
Restricted Stock Units	04/13/2026		A		529,801(1)	A	$0	529,801(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. Represents restricted stock units granted on April 13, 2026 under the NET Power Inc. 2023 Omnibus Incentive Plan. Each restricted stock unit represents the right to receive one share of Class A common stock of the Issuer. The restricted stock units vest in full on April 13, 2029, subject to continued employment of the reporting person through that date and to accelerated vesting in certain circumstances.

2. The reporting person became Chief Financial Officer of the Issuer effective April 13, 2026. The restricted stock units reported on this Form 4 are the same units reported as a holding on the Form 3 filed by the reporting person on May 27, 2026, and are not in addition to them. Due to administrative oversight, this Form 4 is being filed late.

Remarks:

Exhibit 24, Power of Attorney.

	/s/ Ron Rucker, as Attorney-in-Fact for Ned Leland Shuman	10/08/2026
	** 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.
* Form 4: SEC 1474 (03-26)