Form4insider filings, from the source

Insider · CIK 0001981100

8 Rivers Capital, LLC

Files at: NPWR. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $470k · 1net −$470k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 8, 2026 SForm 4 →Sep 10, 6:01 pm EDTNet Power Inc.NPWR250,000$1.88$469,595750,000−25.0%

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.