# NET POWER INC (NPWR-WT) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 64107A105
Page URL: https://superinvestorclub.com/stock/NPWR-WT
Last updated: 2026-07-08T12:33:18.661Z

## Summary

As of the most recent 13F filing period, NET POWER INC (NPWR-WT) is held by 1 tracked superinvestors with an aggregate position value of $30.2M representing 02992110 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [David Einhorn](https://superinvestorclub.com/manager/5) | Greenlight Capital | 2992110 | $30.2M | 1.48% | 2023-12-31 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $32.6M aggregate, 02510000 shares
- 2023-09-30: 1 holders, $42.8M aggregate, 02837110 shares
- 2023-12-31: 1 holders, $30.2M aggregate, 02992110 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "NET POWER INC (NPWR-WT) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/NPWR-WT), aggregating SEC 13F, Form 4, and congressional disclosures."