Form 4/A for NPWR Net Power Inc.
Accepted 2026-05-13 16:23:25 ET · period of report 2026-03-06 · accession 0001104659-26-060274 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DA | 2026-05-13 16:23 | 2026-03-06 | NPWR | NPEH, LLC | 10% | C - Cnv Deriv | — | +3.00M | 3.40M | +750% | — |
| DA | 2026-05-13 16:23 | 2026-03-06 | NPWR | NPEH, LLC | 10% | J - Other | — | -3.00M | 17.73M | -14% | — |
| DA | 2026-05-13 16:23 | 2026-03-06 | NPWR | NPEH, LLC | 10% | C - Cnv Deriv | — | -3.00M | 17.73M | -14% | — |
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 | 2026-03-06 | C | A | 3,000,000 | — | 3,400,000 | 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 March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock. |
| 2 | Common | Class B Common Stock | 2026-03-06 | J | D | 3,000,000 | — | 17,729,880 | 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 3,000,000 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 | Derivative | Class A Units of NET Power Operations LLC | 2026-03-06 | C | D | 3,000,000 | — | 17,729,880 | D | — · — to — | 3,000,000 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 March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock. (F3) This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the "Original Form 4") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II. (F3) This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the "Original Form 4") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II. (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 March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock. (F3) This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the "Original Form 4") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II. (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 March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock. (F3) This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the "Original Form 4") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II. (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 March 6, 2026, NPEH exchanged 3,000,000 Class A Units of NET Power Operations LLC for 3,000,000 shares of the Issuer's Class A Common Stock. (F3) This amendment is being filed to correct an administrative error in the Form 4 filed on March 10, 2026 (the "Original Form 4") and report the 3,000,000 Class A Units of NET Power Operations LLC that were converted into an equal number of shares of the Issuer's Class A Common Stock as being disposed of by the Reporting Person. The Original Form 4 inadvertently omitted such Class A Units from Table II. |