NPWR NET Power Inc. Insider Trading

10% owner Npeh, LLC sells 435,000 shares (12.8% stake reduction) at $2.44 blended price; perfectly replicated historical timing pattern.

Npeh, LLC—a 10% shareholder—executed a two-day sale of 435,000 shares (12.8% reduction from 3.4M holdings) at a blended average of $2.44, realizing $1,060,711.50. The sale mirrors a precise behavioral signature: this is the insider's sixth consecutive sell at NPWR, and all five prior trades at this ticker were well-timed against the 90-day benchmark, with the most recent sequence (January and November 2025) posting 90-day declines ranging from -17.4% to -43.0%. His cross-ticker track record of 20 prior sells shows a 100% well-timed rate at the 90-day mark (average -34.7% post-sale). The current price of $2.22 is already -57.3% from the 52-week high and the company reports $0.00 revenue (latest quarter), -$9.9M net income, and -100% annual revenue growth—a deeply distressed profile. This transaction signals continuation of a proven early-exit pattern by a material insider at a pre-revenue, cash-burning entity trading 9% below the transaction price.

8 Rivers Capital (10% owner) sold 435,000 NPWR shares at $2.44 blended; stock now $2.22, -57.3% from highs; prior 5 same-ticker sells all declined 90d.

8 Rivers Capital sold 435,000 shares over two days at a blended average of $2.44, reducing its stake from 3,400,000 to 2,965,000 shares. The sales occurred as the stock trades 57.3% below its 52-week high and the company faces severe financial headwinds: zero revenue in the latest quarter and a $-9.9M net loss with -100.0% annual revenue decline. Most significantly, 8 Rivers has executed five consecutive sales at this ticker prior to this filing, and all five prior trades showed negative 90-day returns, demonstrating a 100% well-timed sell rate at NPWR. This pattern—paired with the company's deteriorating fundamentals and the insider's persistent selling activity—suggests 8 Rivers has anticipated downside in an unprofitable, zero-revenue company. The current stock price of $2.22 is already below the $2.44 blended sale price, consistent with the insider's historical timing acumen at this ticker.

10% owner NPEH LLC sells 500,000 shares of NPWR in 3 tranches (Jan 14–16) at blended $2.64; stock -73.6% from 52-week high, company unprofitable with -56.9% revenue decline.

NPEH LLC, a 10% owner, executed 3 separate sales totaling 500,000 shares for $1,322,284.50 across January 14–16, 2026, reducing its stake by -24.4% to 1,550,000 shares post-transaction. The sales occurred at a blended average price of $2.64, which is currently -73.6% below the 52-week high of $10.00, and the company remains deeply unprofitable with latest-quarter revenue of $0.00 and annual net income of -$411,498,000.00, alongside a -56.9% annual revenue decline. Across the insider's same-ticker transaction history at NPWR, all 5 prior measurable sales showed negative 30-day returns (ranging -9.7% to -29.6%), indicating a consistent pattern of selling into downward price momentum at this stock. The current 30-day price action of +12.8% represents a near-term recovery from the broader 90-day decline of -26.3%, though the fundamental backdrop of zero revenue and severe net losses raises material questions about ongoing cash burn and business viability.

8 Rivers Capital sells 500,000 NPWR shares (24.4% of holdings) in 3 tranches for $1.3M as stock trades -73.6% from 52-week high.

8 Rivers Capital, a 10% owner, executed 3 separate sales totaling 500,000 shares for $1,322,284.50 over three consecutive trading days (Jan 14–16, 2026) at prices between $2.57 and $2.74, reducing its position from 2,050,000 shares to 1,550,000 shares. The blended average price of $2.64 reflects sales during significant downward momentum: the stock is currently trading -73.6% from its 52-week high of $10.00 and has declined -26.3% over the past 90 days despite a recent 12.8% bounce in the last 30 days. The company's fundamentals are severely distressed—the latest quarter showed $0.00 revenue, a net loss of $411,498,000, and annual revenue has contracted -56.9%. Critically, 8 Rivers' recent transaction history at NPWR shows a consistent pattern: five prior sales in October and November 2025, all of which posted negative 30-day returns ranging from -9.7% to -29.6%, with none yet measurable at the 90-day horizon. This latest filing represents a continuation of the firm's liquidation activity in a deeply troubled asset trading near its cycle lows, warranting attention to whether further insider sales signal ongoing distress or represent a complete exit from the position.

10% owner NPEH, LLC sells 588,653 shares ($1.6M) across 2 transactions at $2.71 average; stock down -81.0% from 52-week high.

NPEH, LLC, a 10% shareholder in NET Power Inc., executed 2 separate sales totaling 588,653 shares for $1,593,479.47 on November 17 and 19, 2025, reducing holdings by 15.3%. The sales occurred at a blended average price of $2.71, which is now 7.1% above the current price of $2.53, and the stock trades -81.0% below its 52-week high of $13.29. NET Power is deeply unprofitable with net income of -$411,498,000 in its latest period, zero current quarterly revenue, and -56.9% annual revenue decline. The company's market cap stands at $9,520,956.72. These sales follow a pattern of five consecutive daily sells by the same filer between October 24 and October 30, 2025, suggesting systematic reduction of a major shareholding position.

10% owner 8 Rivers Capital sells 588,653 shares for $1,593,479.47 as NPWR trades 81% below 52-week high

8 Rivers Capital, LLC, a 10% owner of NET Power Inc., executed 2 separate sales totaling 588,653 shares (588.7K shares) for $1,593,479.47 ($1.6M) on 2025-11-17 and 2025-11-19 at blended average price of $2.71. The sales reduced holdings by -15.3% from 3.84M to 3.25M shares. This activity occurs amid severe stock underperformance: the stock trades at $2.53, down 81.0% from its 52-week high of $13.29 and down 28.1% over the prior 30 days, while the company reports zero revenue in its latest quarter, a net loss of $-411.5M, and negative 56.9% annual revenue growth. The timing of substantial insider reduction of a major stakeholder position coincides with documented financial deterioration and extended equity weakness, presenting material information for investors assessing company trajectory and insider conviction.

NPEH LLC (10% owner) sells 902.2K shares for $3.7M across three days at blended $4.10 average, reducing stake by 32.6%.

NPEH LLC, a 10% owner of NET Power, executed three separate sales totaling 902,171 shares for $3,702,731.82 between October 28–30, 2025, at prices ranging from $3.77 to $4.12 and blended at $4.10. This represents a reduction of holdings from 2,767,417 to 1,865,246 shares, a -32.6% decrease in stake. The timing is notable: the current price of $3.97 is -70.1% from the 52-week high of $13.29, and the stock is in a volatile recovery phase (up +31.9% over 30 days, +51.0% over 90 days). However, this does not align with the insider's broader cross-ticker track record, which shows 20 prior sells with a 90-day well-timed rate of 27.27%, indicating mixed timing acumen. At NPWR specifically, the filer's five prior sales (October 21–27) are too recent to assess outcomes. Critically, NET Power's fundamentals are severely distressed: negative quarterly revenue ($0.00), a loss of $-28,142,000.00, annual revenue decline of -56.9%, and a market cap of only $14,939,999.28—indicating a cash-burned, unprofitable entity where a major shareholder's multi-million-dollar exit represents meaningful capital withdrawal during operational distress.

10% owner 8 Rivers Capital sells 902,171 shares (32.6% of holdings) across 3 days for $3.7M as NPWR stock trades 70% below 52-week high

8 Rivers Capital executed three separate sales totaling 902,171 shares for $3,702,731.82 between October 28–30, 2025, reducing its stake from 2,767,417 shares to 1,865,246 shares. The sales occurred at prices ranging from $3.77 to $4.12 (blended $4.10), while the stock now trades at $3.97—off 70.1% from its 52-week high of $13.29 and down 56.9% in annual revenue. NET Power is unprofitable (net income of -$28,142,000.00 in the latest period) with zero quarterly revenue, signaling operational distress. The concentrated three-day selling pattern during a period of prior rapid declines (30-day: +31.9%, but 90-day: +51.0% gain before this dump) alongside the company's financial deterioration raises questions about the timing and sustainability of the recent price recovery. Investors should note this represents a material 32.6% reduction in a major shareholder's position under stressed fundamentals.

10% owner NPEH, LLC sells 516.7K shares in 3 transactions for $1.9M at blended avg $3.72

NPEH, LLC, a 10% shareholder, executed three separate sales totaling 516,683 shares for $1,922,281.58 between 2025-10-23 and 2025-10-27 at prices ranging from $3.69 to $3.77, reducing holdings by 15.7% from 3,284,100 to 2,767,417 shares. The sales occur in a backdrop of severe fundamental deterioration: NET Power reported $0.00 in latest-quarter revenue and net income of $-28,142,000.00, with annual revenue contraction of 56.9% and a market cap of only $13,886,296.56. The current stock price of $3.69 is down 72.2% from its 52-week high of $13.29, though it has recovered 21.8% over the past 30 days and 29.5% over 90 days. This large-scale position reduction by a significant insider holder signals material reassessment of NET Power's trajectory during a period of acute operational contraction and stock deterioration.

10% owner 8 Rivers Capital sells 516,683 shares across 3 days (Oct 23–27) for $1.9M at $3.72 avg; stock down 72.2% from high

8 Rivers Capital, a 10% owner of NET Power Inc., executed 3 separate sales totaling 516,683 shares for $1,922,281.58 over a three-day window (Oct 23–27, 2025) at a blended average price of $3.72, reducing its stake by -15.7% to 2.77M shares post-transaction. The company is unprofitable with annual revenue growth of -56.9%, a market cap of $13.9M, and negative full-year net income of $-28.1M, presenting a fundamentally distressed profile. The insider's prior sales across all tickers show a 90-day well-timed rate of 21.43%, but at this specific ticker NPWR the insider has 5 prior sells with 0 prior well-timed outcomes at the 90-day mark, suggesting either poor historical timing or insufficient observation periods at this particular holding.