Jane Street’s NET Power NPWR Stock Holding History

Jane Street’s Portfolio NPWR Stock Details NPWR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$17K	Sell	10,200 -2,300	-18%	-$4.17K	﹤0.01%	11242
2026 Q1	$19.5K	Sell	12,500 -13,000	-51%	-$27.7K	﹤0.01%	11197
2025 Q4	$58.1K	Buy	25,500 +10,400	+69%	+$32.5K	﹤0.01%	10453
2025 Q3	$45.5K	Buy	+15,100	New	+$40.3K	﹤0.01%	10376

Other funds holding NPWR

ALS

Andrew L. Share $193M AUM 1.47% 1-Year Est. Return

HHAM

HITE Hedge Asset Management Braintree, Massachusetts $1.83B AUM 34.36% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

PEAK6 Chicago, Illinois $48.6B AUM 40.56% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Defiance ETFs New York $7.37B AUM

Tidal Investments Milwaukee, Wisconsin $57.8B AUM 72.54% 1-Year Est. Return

Sourcerock Group Denver, Colorado $1.92B AUM 45.54% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jane Street's NPWR Position: Q2 2026 in Review

Jane Street sold out of NET Power (NPWR) in Q2 2026, closing a stake of 52,548 shares — an estimated $95.2K sold.

Jane Street first reported a position in NPWR in Q4 2023 and held it in 9 quarters. The position peaked at $1.64M in Q4 2025. 120 funds tracked by Wall St. Rank hold NPWR as of Q2 2026.

Jane Street reported no remaining NET Power position as of Q2 2026 after selling out during the quarter.
Jane Street sold 52,548 NET Power shares in Q2 2026, an estimated $95.2K.
Jane Street first reported a position in NET Power in Q4 2023 and held it in 9 quarters.
Jane Street's NET Power position peaked at $1.64M in Q4 2025.
120 funds tracked by Wall St. Rank held NET Power as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.