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SIMPLEX TRADING, LLC

Position in NPWR — Net Power Inc.

CIK 1488542 CHICAGO, IL

Position in NPWR

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$129,598
-$13,590 QoQ
Shares Held
77,604
+63.1% QoQ
Ownership
0.035%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#41
of 121 holders
Holding Since
Mar 2024
7 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in NPWR Over Time

Shares Held

Position Value (USD)

Position in Specialty Industrial Machinery

Industrials · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $43,240,004 across 33 Specialty Industrial Machinery names. NPWR ranks #24 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in NPWR

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $129,598 77,604
2025-09-30 $143,188 47,571
2025-06-30 $84,553 34,232
2025-03-31 $22,807 8,672
2024-12-31 $300,618 28,387
2024-06-30 $47,184 4,800
2024-03-31 $97,805 8,587