Jim Simons’s NET Power NPWR Stock Holding History

Jim Simons’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	$1.1M	Buy	703,800 +609,200	+644%	+$1.3M	﹤0.01%	2230
2025 Q4	$216K	Buy	+94,600	New	+$296K	﹤0.01%	2868

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

PEAK6 Chicago, Illinois $42.6B AUM 66.24% 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 $1.88T AUM 44.46% 1-Year Est. Return

Jim Simons's NPWR Position: Q1 2026 in Review

Jim Simons increased its NET Power (NPWR) stake by 644% in Q1 2026, buying an estimated $1.3M and bringing the position to 703,800 shares worth $1.1M. The position accounts for ﹤0.01% of the portfolio, ranked #2230.

Jim Simons first reported a position in NPWR in Q4 2025 and has held it in 2 quarters since. 113 funds tracked by Wall St. Rank hold NPWR as of Q1 2026.

Jim Simons held 703,800 shares of NET Power worth $1.1M as of Q1 2026.
Jim Simons bought 609,200 NET Power shares in Q1 2026, an estimated $1.3M.
NET Power made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #2230 holding.
Jim Simons first reported a position in NET Power in Q4 2025 and has held it in 2 quarters since.
113 funds tracked by Wall St. Rank held NET Power as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.