NET Power

NPWR • NYSE

NET Power is a industrial - machinery company in the industrials sector on NYSE, led by Daniel J. Rice IV, with a market cap of $217.4M. As of Q3 2025, 42% of shares are held by 99 institutional investors, with Share Andrew L. as the largest holder at 12.76%.

Chief Executive OfficerDaniel J. Rice IV

Market Cap$217.4M

Industrial - Machinery

Industrials

Employees43.0

Websitenetpower.com

Country

United States of America

Overview

Overview of institutional ownership in NPWR as of Q3 2025 with a market cap of $234.4M

All Institutions

Institutions: 99
Value Held: $97.8M
Shares Held: 32.5M
Avg Position: $987.7K
Median Position: $115.9K

Hedge Funds

Hedge Funds: 17
Value Held: $20.7M
Shares Held: 6.9M
Avg Position: $1.2M
Median Position: $310.6K

Ownership Breakdown

Institutional (non-HF)

32.86%

$77.0M

Hedge Funds

8.85%

$20.7M

Retail & Other

58.29%

$136.6M

Based on market cap of $234.4M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in NPWR as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
S Share Andrew L. Institution	-	$29.9M 20.69% of portfolio	12.76% 9.9M shares	Q2 2023 Held for 2y 5m	$144.6M
A ADAGE CAPITAL PARTNERS GP LLC Institution	-	$7.6M 0.01% of portfolio	3.22% 2.5M shares	Q4 2022 Held for 2y 11m	$63.0B
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	Dan Michael Berkovitz Chairman	$7.1M 0.01% of portfolio	3.04% 2.4M shares	Q4 2022 Held for 2y 11m	$121.98B
B BlackRock, Inc. Institution	-	$6.2M 0.00% of portfolio	2.63% 2.0M shares	Q3 2023 Held for 2y 2m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$5.4M 0.00% of portfolio	2.29% 1.8M shares	Q3 2023 Held for 2y 2m	$6.69T
CenterBook Partners LP Hedge Fund•Market Neutral	David Israel Stemerman CEO	$3.8M 0.19% of portfolio	1.60% 1.2M shares	Q4 2024 Held for 11 months	$2.0B
HITE Hedge Asset Management LLC Hedge Fund•Long/Short	James Meyers Jampel Founder	$2.9M 0.16% of portfolio	1.25% 976.4K shares	Q4 2022 Held for 2y 11m	$1.8B
COHEN & STEERS INC Institution	Joseph M. Harvey CEO	$2.9M 0.01% of portfolio	1.22% 950.7K shares	Q2 2023 Held for 2y 5m	$54.7B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$2.8M 0.00% of portfolio	1.20% 936.4K shares	Q4 2022 Held for 2y 11m	$1.65T
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$2.6M 0.00% of portfolio	1.12% 874.5K shares	Q3 2023 Held for 2y 2m	$1.57T

Net Capital Flow

Institutional buying and selling activity for NPWR in Q3 2025

Traded: +$7.3M
Buyers: 50
Sellers: 38
Total Bought: +$15.9M
Total Sold: −$8.6M
Avg Position: $880.9K

Biggest Buyers

Institution	Net Bought	Current Position
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$3.6M +1.2M shares	$7.1M 2.4M shares
MORGAN STANLEY RIA/Wealth	+$1.8M +613.3K shares	$2.8M 936.4K shares
CenterBook Partners LP Hedge Fund•Market Neutral	+$1.7M +550.3K shares	$3.8M 1.2M shares
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	+$857.6K +284.9K shares	$857.6K 284.9K shares
UBS Group AG Institution	+$838.0K +278.4K shares	$1.3M 430.5K shares
J JANE STREET GROUP, LLC Institution	+$809.1K +268.8K shares	$809.1K 268.8K shares
GOLDMAN SACHS GROUP INC Institution	+$763.1K +253.5K shares	$838.1K 278.4K shares
Empowered Funds, LLC ETF Provider	+$671.8K +223.2K shares	$671.8K 223.2K shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$664.7K +220.8K shares	$2.5M 821.8K shares
JPMORGAN CHASE & CO Institution	+$592.6K +196.9K shares	$640.9K 212.9K shares

Biggest Sellers

Institution	Net Sold	Current Position
HITE Hedge Asset Management LLC Hedge Fund•Long/Short	−$2.1M −701.7K shares	$2.9M 976.4K shares
VANGUARD GROUP INC Institution	−$1.7M −580.6K shares	$5.4M 1.8M shares
A ADAGE CAPITAL PARTNERS GP LLC Institution	−$993.7K −330.1K shares	$7.6M 2.5M shares
J J. Goldman & Co LP Hedge Fund•Multi-Strategy	−$670.5K −271.5K shares	Sold Off 0 shares
S SIR Capital Management, L.P. Hedge Fund•Long/Short	−$592.7K −196.9K shares	$310.6K 103.2K shares
S S&CO INC Family Office	−$464.4K −188.0K shares	Sold Off 0 shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	−$314.7K −104.5K shares	$1.3M 423.4K shares
S Squarepoint Ops LLC Hedge Fund•Quant	−$212.8K −70.7K shares	$297.1K 98.7K shares
Verition Fund Management LLC Hedge Fund•Multi-Strategy	−$202.1K −67.1K shares	$82.3K 27.3K shares
Caption Management, LLC Hedge Fund•Long/Short	−$169.8K −56.4K shares	$1.0M 345.5K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited NPWR in Q3 2025

New Positions: 9
New Value: $1.6M
Exited Positions: 12
Exited Value: $1.7M

New Positions

Institution	Position Value
Empowered Funds, LLC ETF Provider	$671.8K 223.2K shares
ARDSLEY ADVISORY PARTNERS Hedge Fund•Long/Short	$324.5K 107.8K shares
Toroso Investments, LLC ETF Provider	$258.9K 86.0K shares
Worth Venture Partners, LLC Fund of Funds	$208.8K 69.4K shares
S SG Americas Securities, LLC Institution	$105.1K 34.9K shares
O Optiver Holding B.V. Institution	$1.8K 604.0 shares
Rockefeller Capital Management L.P. Long Only Manager	$331.0 110.0 shares
V Versant Capital Management, Inc RIA/Wealth	$310.0 103.0 shares
Hanson McClain, Inc. RIA/Wealth	$13.0 4.0 shares

Exited Positions

Institution	Previous Position
J J. Goldman & Co LP Hedge Fund•Multi-Strategy	$670.5K 271.5K shares
S S&CO INC Family Office	$464.4K 188.0K shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$129.7K 52.5K shares
C Cubist Systematic Strategies, LLC Institution	$104.4K 42.3K shares
A AXQ CAPITAL, LP Hedge Fund•Market Neutral	$94.9K 38.4K shares
O OMERS ADMINISTRATION Corp Institution	$89.9K 36.4K shares
W WOLVERINE TRADING, LLC Institution	$70.4K 28.4K shares
TORONTO DOMINION BANK Institution	$24.7K 10.0K shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	$21.2K 8.6K shares
E EQ WEALTH ADVISORS, LLC RIA/Wealth	$12.5K 5.1K shares

Options Activity

Institutions with the largest Call and Put options positions in NPWR as of Q3 2025

Call Positions: 6
Call Value: $6.0M
Put Positions: 3
Put Value: $616.4K

Call Positions

Institution	Position Value
P PEAK6 LLC Institution	$4.4M 14.6K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.1M 3.6K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$205.9K 684.0 contracts
J JANE STREET GROUP, LLC Institution	$159.2K 529.0 contracts
W WOLVERINE TRADING, LLC Institution	$121.7K 385.0 contracts
B Belvedere Trading LLC Institution	- - contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$382.9K 1.3K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$188.1K 625.0 contracts
J JANE STREET GROUP, LLC Institution	$45.5K 151.0 contracts

Most Committed Institutions

Institutions with NPWR as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
G G.F.W. Energy XII, L.P. Institution	-	89.04% $357.4K	0.15% 118.7K shares	Q2 2023 Held for 2y 5m	$401.4K
S Share Andrew L. Institution	-	20.69% $29.9M	12.76% 9.9M shares	Q2 2023 Held for 2y 5m	$144.6M
Worth Venture Partners, LLC Fund of Funds	David Alexander Wertentheil CEO	1.03% $208.8K	0.09% 69.4K shares	Q3 2025 Held for 2 months	$20.3M
CenterBook Partners LP Hedge Fund•Market Neutral	David Israel Stemerman CEO	0.19% $3.8M	1.60% 1.2M shares	Q4 2024 Held for 11 months	$2.0B
HITE Hedge Asset Management LLC Hedge Fund•Long/Short	James Meyers Jampel Founder	0.16% $2.9M	1.25% 976.4K shares	Q4 2022 Held for 2y 11m	$1.8B
Argentarii, LLC RIA/Wealth	Brandon S Hutchison Founder	0.06% $154.6K	0.07% 51.4K shares	Q4 2024 Held for 11 months	$250.8M
Caption Management, LLC Hedge Fund•Long/Short	William Lamblè Cooper CEO	0.06% $1.0M	0.44% 345.5K shares	Q1 2025 Held for 8 months	$1.7B
ARDSLEY ADVISORY PARTNERS Hedge Fund•Long/Short	Steven Nicholas Napoli CFO	0.05% $324.5K	0.14% 107.8K shares	Q3 2025 Held for 2 months	$641.4M
S SIR Capital Management, L.P. Hedge Fund•Long/Short	Mirco Ronald Elias CFO	0.03% $310.6K	0.13% 103.2K shares	Q2 2024 Held for 1y 5m	$1.1B
K Kapstone Financial Advisors LLC RIA/Wealth	David Charles Kronour Managing Partner	0.02% $52.4K	0.02% 17.4K shares	Q4 2024 Held for 11 months	$212.3M