Renaissance Technologies LLC Has $1.10 Million Stake in NET Power Inc. $NPWR

Renaissance Technologies LLC grew its holdings in NET Power Inc. (NYSE:NPWR) by 644.0% in the 1st quarter, according to its most recent disclosure with the Securities and Exchange Commission (SEC). The institutional investor owned 703,800 shares of the company’s stock after acquiring an additional 609,200 shares during the quarter. Renaissance Technologies LLC owned 0.31% of NET Power worth $1,098,000 at the end of the most recent reporting period.

Other hedge funds also recently modified their holdings of the company. Schonfeld Strategic Advisors LLC bought a new position in shares of NET Power during the 4th quarter valued at about $25,000. Invesco Ltd. acquired a new position in shares of NET Power in the 2nd quarter valued at approximately $25,000. Summit Securities Group LLC bought a new stake in NET Power during the 1st quarter worth approximately $30,000. Sei Investments Co. bought a new stake in NET Power during the 2nd quarter worth approximately $32,000. Finally, Quantbot Technologies LP acquired a new stake in NET Power during the 3rd quarter worth approximately $39,000. Institutional investors and hedge funds own 53.62% of the company’s stock.

NET Power Stock Performance

NYSE:NPWR opened at $1.95 on Friday. The company has a market cap of $436.49 million, a PE ratio of -0.30 and a beta of 1.07. NET Power Inc. has a 52-week low of $1.35 and a 52-week high of $5.20. The stock has a 50-day simple moving average of $1.61 and a 200 day simple moving average of $1.80.

NET Power (NYSE:NPWR) last announced its earnings results on Thursday, August 13th. The company reported ($0.91) earnings per share (EPS) for the quarter, missing analysts’ consensus estimates of ($0.07) by ($0.84).

Key NET Power News

Here are the key news stories impacting NET Power this week:

• Neutral Sentiment: NET Power provided its second-quarter 2026 results and business update. The earnings-call transcript may offer additional details on the company’s project pipeline, commercialization plans and financial outlook, but no specific new catalyst was identified in the supplied report. Net Power Reports Second Quarter 2026 Results and Provides Business Update NET Power Q2 2026 Earnings Call Transcript
• Neutral Sentiment: The elevated trading volume suggests heightened investor attention following the earnings release and shareholder filings. NPWR was trading near $1.95, above its 50-day moving average of $1.60 but still below its 200-day moving average of $1.80 on a longer-term basis.
• Negative Sentiment: NET Power reported a second-quarter loss of $0.91 per share, substantially worse than analysts’ expected loss of $0.07. The $0.84-per-share miss highlights continued financial pressure and is the clearest fundamental negative in the latest news. NET Power Second-Quarter 2026 Earnings Release
• Negative Sentiment: Major shareholder 8 Rivers Capital sold a combined 757,100 shares from August 12 through August 14 for approximately $1.39 million. The transactions reduced its reported holdings by about 28.98% in the latest sale and may weigh on sentiment by signaling a significant reduction in exposure. 8 Rivers Capital SEC Ownership Filing

Analyst Upgrades and Downgrades

Several research firms have recently weighed in on NPWR. Wall Street Zen cut shares of NET Power from a “sell” rating to a “strong sell” rating in a report on Saturday, July 18th. Weiss Ratings upgraded shares of NET Power from a “sell (e+)” rating to a “sell (d-)” rating in a report on Tuesday. One equities research analyst has rated the stock with a Buy rating, one has given a Hold rating and one has assigned a Sell rating to the company. According to data from MarketBeat.com, the company has an average rating of “Hold” and a consensus target price of $3.50.

Insider Transactions at NET Power

In other NET Power news, major shareholder 8 Rivers Capital, Llc sold 507,100 shares of the business’s stock in a transaction dated Friday, August 14th. The shares were sold at an average price of $1.95, for a total transaction of $988,845.00. Following the sale, the insider directly owned 1,242,900 shares of the company’s stock, valued at $2,423,655. The trade was a 28.98% decrease in their position. The sale was disclosed in a filing with the SEC, which is available through this link. In the last quarter, insiders have sold 1,512,958 shares of company stock valued at $2,526,729. 2.06% of the stock is currently owned by insiders.

NET Power Profile

NET Power, Inc is an energy technology company focused on developing and commercializing power generation plants that burn natural gas and other fuels with near-zero carbon emissions. The company’s core innovation is the proprietary Allam-Fetvedt Cycle, a supercritical carbon dioxide power cycle that captures all carbon dioxide produced during combustion without the need for separate carbon capture systems. By integrating gas combustion, heat exchange and carbon dioxide separation into a single closed-loop process, NET Power aims to deliver baseload power with efficiencies and emissions profiles competitive with conventional and renewable generation sources.

Since demonstrating its first full-scale Allam-Cycle facility in La Porte, Texas, NET Power has moved from pilot operation toward commercial deployment.