NPWR Net Power Inc.: institutional ownership and insider trading
130 funds reported holding $73.2M of Net Power Inc. in their latest 13F filings; in Q2 2026 funds net bought $7.21M, with 19 new positions and 8 funds selling out; over the last 12 months insiders bought $0 and sold $35.9M on the open market.
Famous investors holding NPWR
- Two Sigma (Two Sigma Investments): $1.10M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $689K, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $592K, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $253K, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $63.2K, 0.0% of the portfolio
Largest institutional holders of NPWR
- Share Andrew L. — $16.3M
- PEAK6 LLC — $5.73M
- HITE Hedge Asset Management LLC — $4.76M
- ADAGE CAPITAL PARTNERS GP, L.L.C. — $4.74M
- VANGUARD GROUP INC — $4.60M
- BlackRock, Inc. (BLK) — $4.04M
- VANGUARD CAPITAL MANAGEMENT LLC — $3.01M
- Defiance ETFs, LLC — $2.60M
- Tidal Investments LLC — $2.58M
- Sourcerock Group LLC — $2.34M
Recent NPWR insider trades
- Sep 9, 2026: Npeh, Llc sold 250,000 shares ($470K)
- Sep 9, 2026: Beauchamp Damian R. sold 250,000 shares ($470K)
- Aug 26, 2026: Beauchamp Damian R. sold 242,900 shares ($464K)
- Aug 26, 2026: Npeh, Llc sold 242,900 shares ($464K)
5%+ owners
- 8 RIVERS CAPITAL, LLC: 17.9% (Schedule 13D/A, filed Aug 17, 2026)