NPWR NET Power Inc.
NET Power Inc. (NPWR) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Kensico Capital Management Long/Short Value | New | +453.8K | — | $757.8K | 0.0% | 58 |
| CITADEL ADVISORS LLC Quant | Sold Out | -219.0K | -100.0% | $365.7K | 0.0% | 58 |
| Squarepoint Ops LLC Quant | Sold Out | -166.2K | -100.0% | $277.6K | 0.0% | 54 |
| Wolverine Asset Management Event Quant | New | +168.9K | — | $282.0K | 0.0% | 54 |
| Aristeia Capital Event Long/Short | New | +111.9K | — | $186.9K | 0.0% | 54 |
| Saba Capital Management Event | New | +181.0K | — | $302.2K | 0.0% | 53 |
| Quadrature Capital Quant | New | +26.9K | — | $45.0K | 0.0% | 52 |
| MILLENNIUM MANAGEMENT LLC | Reduced | -644.9K | -94.5% | $1.1M | 0.0% | 52 |
| Jain Global Long/Short Quant | New | +34.8K | — | $58.1K | 0.0% | 52 |
| CenterBook Partners Long/Short Quant | Sold Out | -437.8K | -100.0% | $731.1K | 0.0% | 49 |
Most significant buyers
By move score, not size.
- Kensico Capital Management
- Wolverine Asset Management
- Aristeia Capital
- Saba Capital Management
- Quadrature Capital
Most significant sellers
By move score, not size.
- CITADEL ADVISORS LLC
- Squarepoint Ops LLC
- MILLENNIUM MANAGEMENT LLC
- CenterBook Partners
- Point72 Asset Management, L.P.
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Kensico Capital Management | 1 | 453.8K | 0 | +453.8K | — | 0.0% | New | 58 |
| CITADEL ADVISORS LLC | 1 | 0 | 219.0K | -219.0K | -100.0% | 0.0% | Sold Out | 58 |
| Squarepoint Ops LLC | 2 | 0 | 166.2K | -166.2K | -100.0% | 0.0% | Sold Out | 54 |
| Wolverine Asset Management | 2 | 168.9K | 0 | +168.9K | — | 0.0% | New | 54 |
| Aristeia Capital | 2 | 111.9K | 0 | +111.9K | — | 0.0% | New | 54 |
| Saba Capital Management | 3 | 181.0K | 0 | +181.0K | — | 0.0% | New | 53 |
| Quadrature Capital | 3 | 26.9K | 0 | +26.9K | — | 0.0% | New | 52 |
| MILLENNIUM MANAGEMENT LLC | 2 | 37.8K | 682.7K | -644.9K | -94.5% | 0.0% | Reduced | 52 |
| Jain Global | 3 | 34.8K | 0 | +34.8K | — | 0.0% | New | 52 |
| CenterBook Partners | 4 | 0 | 437.8K | -437.8K | -100.0% | 0.0% | Sold Out | 49 |
| LMR Partners | 3 | 1.7M | 35.9K | +1.70M | +4733.6% | 0.0% | Increased | 49 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 2.8M | 1.5M | +1.30M | +84.4% | 0.0% | Increased | 48 |
| D. E. Shaw & Co., Inc. | 1 | 427.5K | 235.4K | +192.1K | +81.6% | 0.0% | Increased | 47 |
| Moore Capital Management | 3 | 185.0K | 85.0K | +100.0K | +117.6% | 0.0% | Increased | 46 |
| AQR Capital Management | 3 | 385.3K | 153.5K | +231.8K | +151.0% | 0.0% | Increased | 45 |
| Caption Management | 3 | 236.8K | 19.9K | +216.9K | +1091.4% | 0.0% | Increased | 44 |
| Point72 Asset Management, L.P. | 1 | 15.3K | 34.1K | -18.8K | -55.0% | 0.0% | Reduced | 42 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 354.2K | 703.8K | -349.6K | -49.7% | 0.0% | Reduced | 40 |
| Qube Research & Technologies Ltd | 2 | 55.8K | 36.6K | +19.2K | +52.6% | 0.0% | Increased | 37 |
| TWO SIGMA INVESTMENTS, LP | 2 | 660.6K | 1.1M | -419.7K | -38.9% | 0.0% | Reduced | 35 |
| Engineers Gate | 4 | 16.3K | 31.0K | -14.7K | -47.5% | 0.0% | Reduced | 29 |
| Tudor Investment Corporation | 2 | 397.5K | 431.2K | -33.6K | -7.8% | 0.0% | Reduced | 24 |
| Boothbay Fund Management | 4 | 340.7K | 296.0K | +44.7K | +15.1% | 0.0% | Increased | 21 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.