Net Power NPWR Institutional Ownership

NYSE NPWR

$1.79 0.00 (-0.28%)

As of: Sep 16, 2026 · 11:14 AM EDT

Institutions by Trading Activity

122 Institutions

Increased 69 56.6%

Unchanged 23 18.9%

Reduced 30 24.6%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

43.78%

▲+2.54 pp QoQ

Shares Held by Institutions

38.70Mn

of 88.41Mn outstanding

▲+13.52% QoQ

Shares Outstanding

88.41Mn

49.70Mn held outside 13F filers

Institutional Investors

122

filed 13F for Jun 2026

▲+9 vs prior quarter

Net Shares Added (QoQ)

+4.61Mn

accumulated since last quarter

Value of Holdings

$73.93Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Net Power Inc. (NYSE:NPWR) has 122 institutional investors with active 13F positions as of June 2026.

They owned 43.8% of outstanding stock in June 2026, up from 41.2% the prior quarter.
Their total shares held in NPWR increased 13.52% from the prior quarter, while the number of investors in Net Power increased 29.79% year over year.
During the quarter, 69 of these 122 funds increased positions in NPWR, 30 reduced exposure, and 23 held steady.
Altogether, these fund groups held 38.7Mn shares in NPWR by June 2026, up by 4.61Mn shares quarter on quarter, and up 8.5Mn shares year over year.
As of June 30, 2026, the biggest holder of Net Power is Share Andrew L. at 9.77Mn shares, representing 11.05% of shares outstanding.
The most significant purchases of NPWR for the quarter ending June 2026 came from ADAGE CAPITAL PARTNERS GP, L.L.C. (1.3Mn), Defiance ETFs, LLC (1.02Mn), Tidal Investments LLC (1.01Mn), GSA CAPITAL PARTNERS LLP (665.06K), Sixth Street Partners Management Company, L.P. (288.28K).
The largest sales of NPWR for the quarter ending June 2026 came from MILLENNIUM MANAGEMENT LLC (644.86K), Nuveen, LLC (424.88K), TWO SIGMA INVESTMENTS, LP (419.71K), RENAISSANCE TECHNOLOGIES LLC (349.59K), Goldman Sachs Group Inc (109.2K).
Per Business Quant, the top 10 investors in NPWR for the quarter ending June 2026 include Share Andrew L. (9.77Mn), HITE Hedge Asset Management LLC (2.85Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (2.84Mn), BlackRock, Inc. (2.42Mn), PEAK6 LLC (1.99Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.8Mn), Defiance ETFs, LLC (1.56Mn), Tidal Investments LLC (1.55Mn), Sourcerock Group LLC (1.4Mn), GEODE CAPITAL MANAGEMENT, LLC (1.01Mn).

Form 13F Holdings

122 Institutional Holders

Report period 30 Jun, 2026

Total shares held 38.70Mn

Of outstanding 43.78%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Share Andrew L.	0001693672	9,767,500	11.05%	0	0.00%	$16.31Mn
2	HITE Hedge Asset Management LLC	0001568939	2,852,670	3.23%	▲89,246	+3.23%	$4.76Mn
3	ADAGE CAPITAL PARTNERS GP, L.L.C.	0001165408	2,840,000	3.21%	▲1,300,000	+84.42%	$4.74Mn
4	BlackRock, Inc.	0002012383	2,416,294	2.73%	▲273,378	+12.76%	$4.04Mn
5	PEAK6 LLC	0001389958	1,985,754	2.25%	▼2,461	-0.12%	$3.32Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,802,372	2.04%	▲158,577	+9.65%	$3.01Mn
7	Defiance ETFs, LLC	0001732541	1,555,837	1.76%	▲1,022,584	+191.76%	$2.60Mn
8	Tidal Investments LLC	0001600064	1,546,562	1.75%	▲1,013,309	+190.02%	$2.58Mn
9	Sourcerock Group LLC	0001822531	1,400,110	1.58%	▼104,016	-6.92%	$2.34Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,006,014	1.14%	▲145,628	+16.93%	$1.68Mn
11	Cohen & Steers, Inc.	0001284812	888,954	1.01%	▼3,186	-0.36%	$1.49K
12	GSA CAPITAL PARTNERS LLP	0001362033	851,296	0.96%	▲665,056	+357.10%	$1.42K
13	Argentarii, LLC	0002030055	746,799	0.84%	▼1,850	-0.25%	$1.21Mn
14	TWO SIGMA INVESTMENTS, LP	0001179392	660,570	0.75%	▼419,711	-38.85%	$1.10Mn
15	State Street Corp	0000093751	624,238	0.71%	▲10,704	+1.74%	$1.04Mn
16	UBS Group AG	0001610520	610,961	0.69%	▲241,088	+65.18%	$1.02Mn
17	D. E. Shaw & Co., Inc.	0001009207	412,502	0.47%	▲177,105	+75.24%	$688.88K
18	TUDOR INVESTMENT CORP ET AL	0000923093	397,515	0.45%	▼33,638	-7.80%	$663.85K
19	AQR CAPITAL MANAGEMENT LLC	0001167557	385,283	0.44%	▲231,790	+151.01%	$643.42K
20	RENAISSANCE TECHNOLOGIES LLC	0001037389	354,206	0.40%	▼349,594	-49.67%	$591.52K

Showing 1 to 20 of 122 holders