Who owns NPWR?
Institutional ownership of NET Power Inc. from Form 13F, Q2 2026
121 institutional managers reported holding NET Power Inc. (NPWR) in Form 13F filings for Q2 2026, with 38,427,926 shares worth $64.1M. The largest reported holder was Share Andrew L. Managers that filed both quarters added a net 3,224,122 shares (+9.2%). 20 opened new positions and 10 sold out.
- Funds holding
- 121
- Value held
- $64.1M
- New / sold out
- 20 / 10
- Net shares, same filers
- +9.2%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of NPWR
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| Share Andrew L. | $16.3M | 25.4% | 9,767,500 | Unchanged |
| HITE Hedge Asset Management LLC | $4.8M | 7.4% | 2,852,670 | Added |
| Adage Capital Partners GP, L.l.c. | $4.7M | 7.4% | 2,840,000 | Added |
| BlackRock, Inc. | $4.0M | 6.3% | 2,416,294 | Added |
| Peak6 LLC | $3.3M | 5.2% | 1,985,754 | Trimmed |
| Vanguard Capital Management LLC | $3.0M | 4.7% | 1,802,372 | Added |
| Defiance ETFs, LLC | $2.6M | 4.0% | 1,555,837 | Added |
| Tidal Investments LLC | $2.6M | 4.0% | 1,546,562 | Added |
| Sourcerock Group LLC | $2.3M | 3.6% | 1,400,110 | Trimmed |
| Geode Capital Management, LLC | $1.7M | 2.6% | 1,006,014 | Added |
| Cohen & Steers, Inc. | $1.5M | 2.3% | 888,954 | Trimmed |
| Gsa Capital Partners LLP | $1.4M | 2.2% | 851,296 | Added |
| Argentarii, LLC | $1.2M | 1.9% | 746,799 | Trimmed |
| Two Sigma Investments, LP | $1.1M | 1.7% | 660,570 | Trimmed |
| State Street Corp | $1.0M | 1.6% | 624,238 | Added |
| UBS Group AG | $1.0M | 1.6% | 610,961 | Added |
| D. E. Shaw & Co., Inc. | $689K | 1.1% | 412,502 | Added |
| Tudor Investment Corp Et Al | $664K | 1.0% | 397,515 | Trimmed |
| AQR Capital Management LLC | $643K | 1.0% | 385,283 | Added |
| Renaissance Technologies LLC | $592K | 0.9% | 354,206 | Trimmed |
| Northern Trust Corp | $559K | 0.9% | 334,814 | Added |
| Vanguard Portfolio Management LLC | $542K | 0.8% | 324,611 | Added |
| Nuveen, LLC | $482K | 0.8% | 288,876 | Trimmed |
| Charles Schwab Investment Management Inc | $481K | 0.8% | 288,276 | Added |
| Vanguard Fiduciary Trust Co | $472K | 0.7% | 282,441 | Added |
Share of 13F holdings is each fund's shares as a share of the 38,427,926 NPWR shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Adage Capital Partners GP, L.l.c. Added+$2.2M
- Defiance ETFs, LLC Added+$1.7M
- Tidal Investments LLC Added+$1.7M
- Gsa Capital Partners LLP Added+$1.1M
- BlackRock, Inc. Added+$457K
- UBS Group AG Added+$403K
- AQR Capital Management LLC Added+$387K
- D. E. Shaw & Co., Inc. Added+$296K
- Vanguard Capital Management LLC Added+$265K
- Geode Capital Management, LLC Added+$243K
Biggest sellers in Q2 2026
- Millennium Management LLC Trimmed-$1.1M
- Nuveen, LLC Trimmed-$710K
- Two Sigma Investments, LP Trimmed-$701K
- CenterBook Partners LP Sold out-$683K
- Renaissance Technologies LLC Trimmed-$584K
- Citadel Advisors LLC Sold out-$342K
- Squarepoint Ops LLC Sold out-$259K
- Empowered Funds, LLC Sold out-$242K
- Goldman Sachs Group Inc Trimmed-$182K
- Sourcerock Group LLC Trimmed-$174K
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $11.0M and sold $5.5M; 48 added and 30 trimmed.
Questions about NPWR ownership
- Who owns NPWR stock?
- 121 institutional investment managers reported NPWR positions in their Form 13F filings for Q2 2026, holding 38,427,926 shares worth $64.1M in total. Share Andrew L. reported the largest position.
- Are funds buying or selling NPWR?
- In Q2 2026, 20 managers opened new NPWR positions, 48 added, 30 trimmed and 10 sold out. Managers that filed in both quarters added a net 3,224,122 shares.
- How current is this NPWR institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to NPWR by CUSIP. Options are left out. NPWR news and filings · NPWR insider trades · Top funds