Net Power NPWR Institutional Ownership

NYSE NPWR

$1.02 +0.02 (+2.02%)

As of: Oct 19, 2026 · 3:59 PM EDT

Institutions by Trading Activity

121 Institutions

Increased 68 56.2%

Unchanged 23 19.0%

Reduced 30 24.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

43.43%

▲+3.44 pp QoQ

Shares Held by Institutions

38.42Mn

of 88.45Mn outstanding

▲+9.10% QoQ

Shares Outstanding

88.45Mn

50.03Mn held outside 13F filers

Institutional Investors

121

filed 13F for Jun 2026

▲+8 vs prior quarter

Net Shares Added (QoQ)

+3.20Mn

accumulated since last quarter

Value of Holdings

$42.26Mn

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

Updated Oct 11, 2026

Net Power Inc. (NYSE:NPWR) counted 121 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Their combined stake equaled 43.43% of outstanding shares in Q2 2026, up from 39.99% in Q1 2026.
Total shares held in NPWR rose 9.10% from Q1 2026; the number of holders rose 31.52% from Q2 2025.
Among the 121 holders of Net Power, 68 added to their positions, 30 reduced their stakes and 23 left their positions unchanged.
In total, institutional investors held 38.42Mn shares of Net Power at the end of Q2 2026, up 3.2Mn from the prior quarter and up 8.56Mn from a year earlier.
Andrew L. Share led 13F holders of NPWR with 9.77Mn shares as of June 30, 2026, or 11.04% of shares outstanding.
Among holders that already owned Net Power, the biggest buyers in Q2 2026 were Adage Capital Partners GP, L.L.C. (+1.3Mn shares), Defiance ETFs, LLC (+1.02Mn shares), Tidal Investments LLC (+1.01Mn shares), GSA Capital Partners LLP (+665.06K shares) and BlackRock, Inc. (+273.38K shares).
The biggest cuts to NPWR positions during Q2 2026 came from Millennium Management LLC (-644.86K shares), Nuveen, LLC (-424.88K shares), Two Sigma Investments, LP (-419.71K shares), Renaissance Technologies LLC (-349.59K shares) and Goldman Sachs Group Inc (-109.2K shares).
Business Quant data shows the 10 biggest positions in Net Power as of Q2 2026 were held by Andrew L. Share (9.77Mn shares), HITE Hedge Asset Management LLC (2.85Mn shares), Adage Capital Partners GP, L.L.C. (2.84Mn shares), BlackRock, Inc. (2.42Mn shares), Peak6 LLC (1.99Mn shares), Vanguard Capital Management LLC (1.8Mn shares), Defiance ETFs, LLC (1.56Mn shares), Tidal Investments LLC (1.55Mn shares), Sourcerock Group LLC (1.4Mn shares) and Geode Capital Management, LLC (1.01Mn shares).

Form 13F Holdings

121 Institutional Holders

Report period 30 Jun, 2026

Total shares held 38.42Mn

Of outstanding 43.43%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Share Andrew L.	0001693672	9,767,500	11.04%	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 121 holders