NET Power Inc. (NPWR) Institutional Ownership

Institutions by Trading Activity

0Shares Outstanding

10,644,169Shares held by institutions

$15,913,033Value of institutional holdings

38.87%Institutional ownership %

11.87%Shares Changed QoQ

94No. of institutional investors

NET Power Inc. (NYSE:NPWR) has 111 institutional investors that have filed 13F reports for the period ending December 2025.

They owned 43.4% of outstanding stock in December 2025, up from 42.1% the prior quarter.
They increased total shares held in NET Power by 6.2% from last quarter, and the number of investors in NPWR decreased 0.89% annually.
During the quarter, 52 of these 111 funds increased positions in NPWR, 38 reduced exposure, and 21 held steady.
Combined, these investors held 33.79Mn shares in NPWR for December 2025, up by 1.97Mn shares quarter on quarter, and up 1.88Mn shares year over year.
Share Andrew L. leads ownership in NPWR with 9.77Mn shares as of December 31, 2025, equal to 12.54% of outstanding shares.
The most significant purchases of NPWR for the quarter ending December 2025 came from Sourcerock Group LLC (1.5Mn), PEAK6 LLC (1.35Mn), Empowered Funds, LLC (666.26K), CenterBook Partners LP (599.72K), JANE STREET GROUP, LLC (451.76K).
The largest sales of NPWR for the quarter ending December 2025 came from ADAGE CAPITAL PARTNERS GP, L.L.C. (969.87K), Morgan Stanley (632.67K), Jpmorgan Chase & Co (393.05K), UBS Group AG (365.96K), Bank Of America Corp /De/ (281.54K).
Business Quant data shows the 10 biggest positions in NET Power as of December 2025 are held by Share Andrew L. (9.77Mn), MILLENNIUM MANAGEMENT LLC (2.28Mn), VANGUARD GROUP INC (2.02Mn), BlackRock, Inc. (2.0Mn), CenterBook Partners LP (1.85Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (1.54Mn), Sourcerock Group LLC (1.5Mn), PEAK6 LLC (1.35Mn), Cohen & Steers, Inc. (944.59K), Empowered Funds, LLC (889.47K).

10,644,169 Total Shares Held

Rows:

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-52,554	-2.57%	$0.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	-88,654	-3.75%	$0.00
Share Andrew L.	31 Dec, 2025	-170,000	-1.71%	$0.00
PEAK6 LLC	31 Dec, 2025	2,694,078	0.00%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	231,669	12.97%	$0.00
CenterBook Partners LP	31 Dec, 2025	599,725	48.04%	$0.00
Barclays Plc	31 Dec, 2025	-20,913	-27.64%	$0.00
ADAGE CAPITAL PARTNERS GP, L.L.C.	31 Dec, 2025	-969,868	-38.64%	$0.00
Sourcerock Group LLC	31 Dec, 2025	1,496,482	0.00%	$0.00
Nuveen, LLC	31 Dec, 2025	0	0.00%	$0.00
Cohen & Steers, Inc.	31 Dec, 2025	-6,124	-0.64%	$0.00
Argentarii, LLC	31 Dec, 2025	212,142	413.01%	$0.00
Empowered Funds, LLC	31 Dec, 2025	666,264	298.50%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	240,972	0.00%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	-42,972	-4.91%	$0.00
Caption Management, LLC	31 Dec, 2025	-259,244	-75.04%	$0.00
HITE Hedge Asset Management LLC	31 Dec, 2025	-227,337	-23.28%	$0.00
Worth Venture Partners, LLC	31 Dec, 2025	10,875	15.68%	$0.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	-93,334	-11.36%	$0.00
UBS Group AG	31 Dec, 2025	-365,956	-85.02%	$0.00

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