$NPWR

$0.96 +$0.04 (4.12%) Close

$NPWR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 88.4M shares outstanding

Who owns NPWR?

By type of holder

Institutions 43.0% Insiders 0.0% Everyone else 57.1%

Concentration Top 10 holders own 108.2%

Damian Beauchamp 30.2% · Npeh, LLC 30.2%

Institutional ownership

43.0%

+3.1 pts vs last qtr

Institutional holders

117

+4 vs last qtr

Net shares bought

+2.8M

by institutions in Q2 2026

New / sold out

19 / 15

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Adage Capital Partners GP, L.L.C. +1.3M
Defiance ETFs, LLC +1.0M

Biggest sellers in Q2 2026

Millennium Management LLC −644.9K
CenterBook Partners LP SOLD OUT −437.8K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for NET Power Inc. in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2022–FY2025

+2028.6%

+361.37% a year

Each share's claim on the business

−95.3%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $92.7M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years44% 1–3 years32% Under 1 year24%

Quarterly turnover

14.5%

of institutional shares changed hands

Top 10 managers, median time held

2.8 years

Super Investors

Investment managers reporting NPWR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
SA Share Andrew L.	9.8M	11.05%	Unchanged	2023	8.4%
Shares held by quarter Peak holding9.9M (Q3'24) Change over 8 quarters−170.0K Share of the company11.050% Share Andrew L.'s full portfolio →
HH HITE Hedge Asset Management LLC	2.9M	3.23%	+89.2K (+3.2%)	2023	0.3%
Shares held by quarter Peak holding2.9M (Q2'26) Change over 8 quarters+2.5M Share of the company3.230% HITE Hedge Asset Management LLC's full portfolio →

Share Andrew L.

9.8M

% of company

11.05%

Change vs last qtr

Unchanged

Held since

2023

HITE Hedge Asset Management LLC

2.9M

% of company

3.23%

Change vs last qtr

+89.2K (+3.2%)

Held since

2023

28 more super investors behind a free account

See every manager holding NET Power Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting NPWR on Form N-PORT; together they hold 9.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
DA Defiance AI & Power Infrastructure ETF Tidal Trust II	$3.05M	1.7M	1.94%	0.34%	August 31, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$2.23M	1.3M	1.51%	0.00%	June 30, 2026

Defiance AI & Power Infrastructure ETF

Tidal Trust II

Position value

$3.05M

% of company

1.94%

% of the fund

0.34%

As of

August 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$2.23M

% of company

1.51%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding NET Power Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
DB Damian Beauchamp 5%+ holder 13D · 25.6%	26.7M	30.24%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company30.240% Disclosed stake13D · 25.6% View the 13D/G filing →
N Npeh, LLC 5%+ holder 13D · 25.6%	26.7M	30.24%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company30.240% Disclosed stake13D · 25.6% View the 13D/G filing →

Damian Beauchamp

5%+ holder13D · 25.6%

26.7M

% of company

30.24%

Change vs last qtr

—

Held since

—

Npeh, LLC

5%+ holder13D · 25.6%

26.7M

% of company

30.24%

Change vs last qtr

—

Held since

—

1 more holders behind a free account

See every insider and 5%+ holder of NET Power Inc..

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