NPEH, LLC 4

4 · NET Power Inc. · Filed May 14, 2026

AI-generated summary of this filing

Updated May 14, 2026

NET Power (NPWR) NPEH, LLC (10% Owner) Sells 435,000 Shares

What Happened

NPEH, LLC, a reported 10% owner of NET Power, sold a total of 435,000 shares of Class A common stock in two transactions on May 12–13, 2026. The sales generated reported proceeds of $975,560 (400,000 shares at a weighted average $2.44) and $85,152 (35,000 shares at a weighted average $2.43), for total proceeds of $1,060,712. These were dispositions (sales), not purchases or option exercises.

Key Details

Transaction dates and reported prices:
- 2026-05-12: 400,000 shares sold; weighted average price reported $2.44; total $975,560. (Reported per‑share prices ranged $2.35–$2.51.) [Footnote F1]
- 2026-05-13: 35,000 shares sold; weighted average price reported $2.43; total $85,152. (Reported per‑share prices ranged $2.405–$2.46.) [Footnote F2]
Total shares sold: 435,000; total proceeds reported: $1,060,712.
Shares owned after the transactions: not specified in the summary provided in your prompt (not reported here).
Filing date: 2026-05-14; covers transactions on 2026-05-12 and 05-13 and appears to have been filed within the Form 4 timeliness window.
Footnotes: Weighted average prices are reported; NPEH will provide full breakdown of trades/prices upon request to the SEC, issuer, or security holder.

Context

This filing shows an institutional 10% owner selling shares in open‑market/private trades. Such sales can be routine rebalancing or liquidity actions by large holders and do not by themselves indicate management sentiment about the company.
No options exercises, gifts, or awards are reported here — only outright sales (transaction code S).

Form 4

Period: 2026-05-12

10% Owner

Transactions

Sale
Class A Common Stock
[F1]
2026-05-12$2.44/sh−400,000$975,560→ 3,000,000 total
Sale
Class A Common Stock
[F2]
2026-05-13$2.43/sh−35,000$85,152→ 2,965,000 total

Footnotes (2)

[F1]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 $2.35 to $2.51. NPEH, LLC ("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.
[F2]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 $2.405 to $2.46. NPEH, LLC ("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.

Signature

By: /s/ Min Lee, General Counsel of 8 Rivers Capital, LLC, its Manager|2026-05-14

1 file