Net Power Inc.

NPWR

Exchange: NYSE
Industry: Electrical Industrial Apparatus
SEC CIK: 0001845437

SEC filings (opens in a new tab)

In the last 90 days, Net Power Inc. insiders filed 0 open-market purchases and 7 sales; 120 institutions reported holding it in 13F filings for Q2 2026, worth $64.1M in total; no superinvestor holds it.

Other share classesNPWR.WT

Q4 2023 vs. Q3 2023

How the institutions holding Net Power Inc. changed between Q3 2023 and Q4 2023.

All holders in Q4 2023 All holders in Q3 2023

13F holders of NPWR: Q3 2023 compared with Q4 2023
Measure	Q3 2023	Q4 2023	Change
Holders	58	70	+12
Shares	32.2M	33.4M	+1.20M (+3.7%)
Value	$486.7M	$337.7M	−$149.0M (−30.6%)

New holders (26)

Institutions that held Net Power Inc. at the end of Q4 2023 but not at the end of Q3 2023.

Institutions new to NPWR in Q4 2023
Institution	Shares	Value	% of portfolio
Rosenbaum Jay D.	500,000	$5.05M	13.05%
Khrom Capital Management LLC	402,096	$4.06M	1.28%
Crawford Fund Management, LLC	166,107	$1.68M	1.41%
Berylson Capital Partners, LLC	129,000	$1.30M	2.42%
Barclays PLC	62,747	$633.7K	0.00%
Qube Research & Technologies Ltd	43,568	$440.0K	0.00%
Jane Street Group, LLC	37,778	$381.6K	0.00%
Swiss National Bank	27,200	$274.7K	0.00%
Goldman Sachs Group Inc	25,735	$259.9K	0.00%
Schonfeld Strategic Advisors LLC	24,512	$247.6K	0.00%
Jump Financial, LLC	19,512	$197.1K	0.01%
ELCO Management Co., LLC	18,350	$185.3K	0.12%
Neuberger Berman Group LLC	16,102	$162.6K	0.00%
California State Teachers Retirement System	12,266	$123.9K	0.00%
Credit Suisse AG	11,936	$120.6K	0.00%
Y-Intercept (Hong Kong) Ltd	10,992	$111.0K	0.01%
Virtu Financial LLC	10,459	$106.0K	0.01%
Atom Investors LP	10,314	$104.2K	0.02%
Belvedere Trading LLC	4,216	$42.6K	0.00%
Zurcher Kantonalbank (Zurich Cantonalbank)	3,034	$30.6K	0.00%
Tower Research Capital LLC (TRC)	1,835	$18.5K	0.00%
Citadel Advisors LLC	1,697	$17.1K	0.00%
Tennessee Valley Asset Management Partners	1,593	$16.1K	0.00%
Steward Partners Investment Advisory, LLC	515	$5.20K	0.00%
Retirement Group, LLC	300	$3.03K	0.00%
Cutler Group LP	202	$2.00K	0.00%

Sold out (14)

Institutions that held Net Power Inc. at the end of Q3 2023 and filed for Q4 2023 without it.

Institutions that sold out of NPWR in Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
Millennium Management LLC	398,732	$6.02M
Point72 Asset Management, L.P.	62,900	$949.8K
FMR LLC	57,035	$861.2K
Balyasny Asset Management LLC	37,516	$566.5K
Continuum Advisory, LLC	26,261	$396.5K
Westfield Capital Management Co LP	21,880	$330.4K
Nkcfo LLC	20,000	$302.0K
Raymond James & Associates	16,814	$253.9K
Clough Capital Partners L P	14,120	$213.2K
Bluefin Capital Management, LLC	11,433	$172.6K
SFG Wealth Management, LLC.	11,350	$171.4K
Flow State Investments, L.P.	10,636	$160.6K
Wade G W & Inc	10,000	$151.0K
Anchor Investment Management, LLC	700	$10.6K