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GROUP ONE TRADING LLC

Position in NPWR — Net Power Inc.

CIK 932540 CHICAGO, IL

Position in NPWR

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$31,182
+$8,146 QoQ
Shares Held
18,672
+26.4% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#66
of 120 holders
Holding Since
Mar 2024
9 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

GROUP ONE TRADING LLC holds $12,117,630 across 20 Specialty Industrial Machinery names. NPWR ranks #13 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in NPWR

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $31,182 18,672
2026-03-31 $23,036 14,767
2025-12-31 $52,405 22,985
2025-09-30 $636,900 211,595
2025-06-30 $251,651 101,883
2024-12-31 $79,552 7,512
2024-09-30 $45,565 6,500
2024-06-30 $1,966 200
2024-03-31 $11,390 1,000