NET POWER INC (NPWR) Stock Institutional Trading Activity


NET POWER INC (NPWR) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC and Greenlight Capital. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCBuy94,60094,600$215,688
Q4 2023Greenlight CapitalBuy155,0002,992,110$30,220,311
Q3 2023Greenlight CapitalBuy327,1102,837,110$42,840,361
Q2 2023Greenlight CapitalBuy2,510,0002,510,000$32,630,000

Frequently asked questions about NPWR activity

  • Which institutional owners are buying NPWR?

    Institutional owners buying NPWR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in NPWR activity?

    "Buy" means an investor increased their reported position in NPWR compared to the prior reporting period. This reflects growing exposure to NET POWER INC (NPWR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in NPWR increasing?

    Institutional interest in NPWR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.