# Net Power Inc Cl A Com

Net Power Inc Cl A Com is a security (CUSIP 64107A105) tracked across SEC portfolio filings. 119 institutional managers reported $58.2M on Form 13F as of 2026-06-30; 10 registered fund positions totaling $2.9M via N-PORT as of 2026-05-31.

## Summary

- Issuer: Net Power Inc Cl A
- Class: Com
- CUSIP: 64107A105
- Asset category: EC
- 13F holders: 119
- 13F value: $58.2M
- 13F period: 2026-06-30
- N-PORT fund positions: 10
- N-PORT value: $2.9M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 119 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Share Andrew L. | MANCHESTER, NH | $16.3M | 9,767,500 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $4.6M | 2,017,263 |
| HITE Hedge Asset Management LLC | QUINCY, MA | $4.3M | 2,763,424 |
| BlackRock, Inc. | New York, NY | $4.0M | 2,416,294 |
| PEAK6 LLC | CHICAGO, IL | $3.6M | 1,988,215 |
| [ADAGE CAPITAL PARTNERS GP, L.L.C.](https://search.stillhousedata.com/firm/160679) | Boston, MA | $2.4M | 1,540,000 |
| [Sourcerock Group LLC](https://search.stillhousedata.com/firm/307575) | DENVER, CO | $2.3M | 1,504,126 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $1.7M | 1,080,281 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $1.3M | 860,386 |
| [Argentarii, LLC](https://search.stillhousedata.com/firm/332112) | CINCINNATI, OH | $1.2M | 748,649 |
| Nuveen, LLC | CHARLOTTE, NC | $1.1M | 713,760 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $1.1M | 703,800 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $1.1M | 682,705 |
| STATE STREET CORP | BOSTON, MA | $1.0M | 624,238 |
| Defiance ETFs, LLC | NEW YORK, NY | $832K | 533,253 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| COHEN & STEERS INFRASTRUCTURE FUND INC | COHEN & STEERS INFRASTRUCTURE FUND INC | $1.1M | 3.63% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $692K | 0.08% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $402K | 0.23% |
| [Cohen & Steers Future of Energy Fund, Inc.](https://search.stillhousedata.com/fund/S000042155) | Cohen & Steers Future of Energy Fund, INC | $323K | 16.63% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $122K | 0.04% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $94K | 0.67% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $47K | 0.10% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $34K | 0.01% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $9K | 0.22% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $4K | 0.01% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/64107A105.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.