Key facts
as of Sep 2026- It has raised $2.9B across 4 recorded rounds; the latest was Early Stage VC in Jun 2022.
- Notable investors include Khosla Ventures, Global Brain, Coatue Management, F-Prime Capital, Collaborative Fund — 50 tracked in total.
- Private Market View tracks 1 recorded secondary trades in Commonwealth Fusion Systems shares.
- Commonwealth Fusion Systems has filed 4 Form Ds with the SEC since 2018, most recently Dec 2021 ($1.8B sold to 72 investors).
- Status: Privately Held (backing).
PA Mark — composite indicative price
LOW confidence~$206per share
as of Sep 2026 · the exact daily mark is a member feature
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- ·Post-money valuations for all 4 rounds
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Recorded secondary trades
1 on record · Jun 2026 – Jun 20261 trades between Jun 2026 and Jun 2026. Exact dates, prices and structures are available to Pro members.
Jun 2026peak 1 prints / monthJun 2026
Counts and months are public. The prints are the product.Unlock 1 trade prints
Institutional fund marks
No fund marks yet
No SEC-registered fund has reported a fair-value mark on Commonwealth Fusion Systems in its N-PORT filings yet. We sweep new filings monthly.
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Funding rounds
4 roundsJun 2022Early Stage VC—▮
About Commonwealth Fusion Systems
Operator of an energy research company intended to accelerate the path to commercial fusion energy. The company designs and builds fusion machines that provide clean fusion energy and combine proven physics with magnet technology and offering high-temperature superconducting magnets, advanced plasma physics research, enabling energy producers and research institutions to contribute to the growth of clean energy and reduce the impact of climate change.
- Industry
- Energy Production
- Sector
- Energy
- HQ
- Devens, MA, United States
- Founded
- 2018
- Employees
- 995
- Website
- cfs.energy/
- Ownership
- Privately Held (backing)