Form 4 for NPWR Net Power Inc.
Accepted 2025-10-16 00:00:00 ET · period of report 2025-10-14 · accession 0001104659-25-100174 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-10-16 | 2025-10-14 | NPWR | NPEH, LLC | 10% | C - Cnv Deriv | — | +4.00M | 4.00M | New | — |
| D | 2025-10-16 | 2025-10-14 | NPWR | NPEH, LLC | 10% | J - Other | — | -4.00M | 22.73M | -15% | — |
| DM | 2025-10-16 | 2025-10-15+ | NPWR | NPEH, LLC | 10% | S - Sale | $4.85 | -236.6K | 3.76M | -6% | -$1.15M |
| D | 2025-10-16 | 2025-10-14 | NPWR | NPEH, LLC | 10% | C - Cnv Deriv | — | -4.00M | 22.73M | -15% | — |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Class A Common Stock | 2025-10-14 | C | A | 4,000,000 | — | 4,000,000 | D | — | — | (F1) The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On October 14, 2025, NPEH, LLC ("NPEH") exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of the Issuer's Class A Common Stock. |
| 2 | Common | Class B Common Stock | 2025-10-14 | J | D | 4,000,000 | — | 22,729,880 | D | — | — | (F2) For each Class A Unit of Net Power Operations LLC, NPEH owns a corresponding share of Class B Common Stock of the Issuer. Upon the exchange of 4,000,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by NPEH, which have no economic value, were cancelled. |
| 3 | Common | Class A Common Stock | 2025-10-15 | S | D | 100,000 | $4.83 | 3,900,000 | D | — | — | (F3) The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.67 to $4.93. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. |
| 4 | Common | Class A Common Stock | 2025-10-15 | S | D | 122,641 | $4.88 | 3,777,359 | D | — | — | (F4) The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.85 to $4.925. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. |
| 5 | Common | Class A Common Stock | 2025-10-16 | S | D | 13,959 | $4.71 | 3,763,400 | D | — | — | (F5) The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $4.50 to $4.83. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. |
| 6 | Derivative | Class A Units of NET Power Operations LLC | 2025-10-14 | C | D | 4,000,000 | — | 22,729,880 | D | — · — to — | 4,000,000 Class A Common Stock | (F1) The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On October 14, 2025, NPEH, LLC ("NPEH") exchanged 4,000,000 Class A Units of NET Power Operations LLC for 4,000,000 shares of the Issuer's Class A Common Stock. |