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JANE STREET GROUP, LLC

Position in NPWR — Net Power Inc.

CIK 1595888 NEW YORK, NY

Position in NPWR

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
-$81,974 QoQ
Shares Held
0
-100.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2023
11 quarters on record

Common Shares in NPWR Over Time

Shares Held

Position Value (USD)

Derivatives in NPWR

reported options exposure · as of Jun 30, 2026
CallValue
$105,711
CallShares
63,300
PutValue
$17,034
PutShares
10,200

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Specialty Industrial Machinery

Industrials · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $1,066,894,968 across 53 Specialty Industrial Machinery names.

# Ticker Company Shares Value (USD) Open

All Filings in NPWR

Export CSV
20 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $105,711 63,300
2026-06-30 $17,034 10,200
2026-03-31 $81,974 52,548
2026-03-31 $97,812 62,700
2026-03-31 $19,500 12,500
2025-12-31 $1,642,875 720,560
2025-12-31 $129,732 56,900
2025-12-31 $58,140 25,500
2025-09-30 $159,229 52,900
2025-09-30 $809,072 268,795
2025-09-30 $45,451 15,100
2025-06-30 $144,742 58,600
2025-03-31 $262,189 99,692
2025-03-31 $189,360 72,000
2024-12-31 $1,191,375 112,500
2024-12-31 $372,290 35,155
2024-09-30 $168,443 24,029
2024-06-30 $385,227 39,189
2024-03-31 $483,208 42,424
2023-12-31 $381,557 37,778