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 Q1	$97.8K	Buy	62,700 +5,800	+10%	+$12.4K	﹤0.01%	10664
2025 Q4	$130K	Buy	56,900 +4,000	+8%	+$12.5K	﹤0.01%	10038
2025 Q3	$159K	Sell	52,900 -5,700	-10%	-$15.2K	﹤0.01%	9846
2025 Q2	$145K	Sell	58,600 -13,400	-19%	-$28.1K	﹤0.01%	8778
2025 Q1	$189K	Sell	72,000 -40,500	-36%	-$286K	﹤0.01%	8494
2024 Q4	$1.19M	Buy	+112,500	New	+$1.1M	﹤0.01%	5044

Other funds holding NPWR

ALS

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

HHAM

HITE Hedge Asset Management Braintree, Massachusetts $1.77B AUM 38.67% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

PEAK6 Chicago, Illinois $42.6B AUM 66.3% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Sourcerock Group Denver, Colorado $2.48B AUM 72.25% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jane Street's NPWR Position: Q1 2026 in Review

Jane Street reduced its NET Power (NPWR) stake by 93% in Q1 2026, selling an estimated $1.43M and leaving 52,548 shares worth $82K. The position accounts for ﹤0.01% of the portfolio, ranked #10734.

Jane Street first reported a position in NPWR in Q4 2023 and has held it in 9 quarters since. The position peaked at $1.64M in Q4 2025. 113 funds tracked by Wall St. Rank hold NPWR as of Q1 2026.

Jane Street held 52,548 shares of NET Power worth $82K as of Q1 2026.
Jane Street sold 668,012 NET Power shares in Q1 2026, an estimated $1.43M.
NET Power made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10734 holding.
Jane Street first reported a position in NET Power in Q4 2023 and has held it in 9 quarters since.
Jane Street's NET Power position peaked at $1.64M in Q4 2025.
113 funds tracked by Wall St. Rank held NET Power as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.