13F Insight
DOSSIER · 13F Holders · Q1 2026
NPWR/WS

NET POWER INC

27 institutions still hold NET POWER INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 64107A113·27 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$3M
visible holders
Holders
27
filers reporting
Concentration
44.45%
Share Andrew L. #1
top holder share
AI Holders Summary · Q1 2026

27 institutions reported NPWR/WS in Q1 2026. Share Andrew L. leads at 44.5% 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
$1M5.3M0.67%Q1 202602
ZAZOVE ASSOCIATES LLC
CIK 0001009012
$475K1.5M0.04%Q2 202603
LMR Partners LLP
CIK 0001578621
$457K1.7M0.00%Q1 202604
KENSICO CAPITAL MANAGEMENT CORP
CIK 0001113000
$233K465K0.00%Q4 202505
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$121K77K0.00%Q1 202606
Ionic Capital Management LLC
CIK 0001386462
$82K164K0.01%Q4 202507
TORONTO DOMINION BANK
CIK 0000947263
$75K278K0.00%Q1 202608
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$59K219K0.00%Q1 202609
COHEN & STEERS, INC.
CIK 0001284812
$52K194K0.00%Q1 202610
Saba Capital Management, L.P.
CIK 0001510281
$49K181K0.00%Q1 202611
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$34K125K0.00%Q1 202612
ARISTEIA CAPITAL, L.L.C.
CIK 0001080171
$31K112K0.00%Q1 202613
Caption Management, LLC
CIK 0001706766
$31K114K0.00%Q1 202614
Arosa Capital Management LP
CIK 0001596053
$29K106K0.00%Q1 202615
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
$27K100K0.00%Q1 202616
Teilinger Capital Ltd.
CIK 0001531879
$13K25K0.00%Q4 202517
K2 PRINCIPAL FUND, L.P.
CIK 0001461790
$12K46K0.00%Q1 202618
Thomas J. Herzfeld Advisors, Inc.
CIK 0001509510
$9K33K0.00%Q1 202619
D. E. Shaw & Co., Inc.
CIK 0001009207
$8K15K0.00%Q4 202520
BLUEFIN CAPITAL MANAGEMENT, LLC
CIK 0001144208
$7K27K0.00%Q1 2026
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