13F Insight
DOSSIER · 13F Holders · Q2 2026
NPWR/WS

NET POWER INC

25 institutions still hold NET POWER INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 64107A113·25 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$3M
visible holders
Holders
25
filers reporting
Concentration
45.12%
Share Andrew L. #1
top holder share
AI Holders Summary · Q2 2026

25 institutions reported NPWR/WS in Q2 2026. Share Andrew L. leads at 45.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Share Andrew L.
CIK 0001693672
$2M5.3M0.80%Q2 202602
LMR Partners LLP
CIK 0001578621
$494K1.7M0.00%Q2 202603
ZAZOVE ASSOCIATES LLC
CIK 0001009012
$475K1.5M0.04%Q2 202604
KENSICO CAPITAL MANAGEMENT CORP
CIK 0001113000
$233K465K0.00%Q4 202505
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$129K77K0.00%Q2 202606
Ionic Capital Management LLC
CIK 0001386462
$82K164K0.01%Q4 202507
TORONTO DOMINION BANK
CIK 0000947263
$81K278K0.00%Q2 202608
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$63K219K0.00%Q2 202609
Saba Capital Management, L.P.
CIK 0001510281
$56K181K0.00%Q2 202610
COHEN & STEERS, INC.
CIK 0001284812
$52K194K0.00%Q1 202611
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$49K169K0.00%Q2 202612
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$35K112K0.00%Q2 202613
Caption Management, LLC
CIK 0001706766
$33K114K0.00%Q2 202614
Arosa Capital Management LP
CIK 0001596053
$31K106K0.01%Q2 202615
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
$29K100K0.00%Q2 202616
K2 PRINCIPAL FUND, L.P.
CIK 0001461790
$13K46K0.00%Q2 202617
Thomas J. Herzfeld Advisors, Inc.
CIK 0001509510
$10K33K0.00%Q2 202618
D. E. Shaw & Co., Inc.
CIK 0001009207
$8K15K0.00%Q4 202519
Teilinger Capital Ltd.
CIK 0001531879
$7K25K0.00%Q2 202620
Hunting Hill Global Capital, LLC
CIK 0001697398
$4K17K0.00%Q1 2026
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