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Commonwealth Fusion Systems Stock

Develops commercial fusion energy systems using advanced superconducting magnets to create compact tokamak reactors for clean power generation.

Price Per Share $198.46 +170.47%
Updated Oct 15, 2026

Commonwealth Fusion Systems Share Price

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6 Months 12 Months 24 Months

Highest Bid

$ 260.80

Lowest Offer

$ 188.50

Last Trade

$ 234.00

Live Orders

1,298

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Overview

Commonwealth Fusion Systems (CFS) is a leading company in the field of commercial fusion energy. By leveraging advanced high-temperature superconducting magnets developed in collaboration with MIT, CFS is developing compact and cost-effective tokamak fusion systems. Their flagship project, SPARC, aims to demonstrate net energy production from fusion, paving the way for the world’s first fusion power plant, ARC.

Sector

Climate & Sustainability

Founded

2017

Headquarters

Devens, MA

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Commonwealth Fusion Systems Management Team

Commonwealth Fusion Systems people and management

  • Co-Founder, CEO
    Robert Mumgaard
  • CFO
    Mitchell Goldstein
  • Board Member
    Alan Eustace
  • Board Member
    Katie Rae
  • Board Member
    Massimiliano Pieri
  • Chief Growth Officer
    Steve Renter
  • Chief Science Officer
    Brandon Sorbom

Investors

Major Commonwealth Fusion Systems investors

  • Breakthrough Energy Ventures (BEV)

  • Emerson Collective LLC

  • Eric Schmidt

  • Future Ventures

  • Gates Frontier

  • Google Ventures

  • Hostplus

  • Khosla Ventures

  • Lowercarbon Capital LLC

  • Mitsubishi Corporation

  • Mitsui & Co., Ltd.

  • Safar Partners

  • Starlight Ventures

  • Tiger Global

Commonwealth Fusion Systems Valuations & Financials

Gain Insights Into Commonwealth Fusion Systems Stock Valuation & Share Prices

View real-time NPM data on Commonwealth Fusion Systems stock including daily Commonwealth Fusion Systems stock price estimates, valuation history, and historical share price information. Access Commonwealth Fusion Systems financing rounds, secondary trade levels, cap table data, and private company comparable transactions. Use NPM's private company valuation database to track Commonwealth Fusion Systems pricing across six independent market signals. Looking for private company due diligence data sources on Commonwealth Fusion Systems? Get in touch to learn more.

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FAQ

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Buy Commonwealth Fusion Systems Stock

Commonwealth Fusion Systems stock does not trade on public stock exchanges. Commonwealth Fusion Systems stock is considered a private security and you need to be an accredited investor to trade shares. To invest in Commonwealth Fusion Systems stock you can either buy shares directly through the company or work with a secondary trading marketplace like Nasdaq Private Market.

Learn more about the secondary market for private company shares on the investors page.

Sell Commonwealth Fusion Systems Stock

Commonwealth Fusion Systems Stock does not trade on public stock exchanges. In order to sell Commonwealth Fusion Systems shares you need to work directly with the company or with a secondary trading marketplace like Nasdaq Private Market. NPM has more than a decade of experience helping sell shares on the private market to our network of institutional investors.

Learn more about NPM services for selling privately held stock on the Employee Shareholders page.

Read more about how to sell private company stock on the private secondary market:

 

Commonwealth Fusion Systems Stock Price

Nasdaq Private Market estimates that Commonwealth Fusion Systems price per share was $198.46 as of October 15, 2026. This Commonwealth Fusion Systems share value estimate (known as the NPM price) is based on market activity, publicly-sourced valuation data, and other proprietary information. With NPM Data and Intelligence premium for investors, you can get visibility into the Commonwealth Fusion Systems share price today and the factors driving Commonwealth Fusion Systems valuation estimates. Learn more about premium data here.

Read more about private company stock prices: Understanding the Bid-Ask Spread: How Buyers and Sellers Match on Price

Commonwealth Fusion Systems Stock Ticker Symbol

There is no ticker symbol for Commonwealth Fusion Systems stock because it is a private company. Private companies do not have ticker symbols like public companies, they are identified primarily by using the company ‘street’ name or legal name.

Criteria to Sell Commonwealth Fusion Systems Stock

Nasdaq Private Market currently works with employees, ex-employees, and other company investors. In order to sell Commonwealth Fusion Systems stock you need to receive the company’s approval, which Nasdaq Private Market manages on your behalf.

Learn more about selling privately held stock on the Employee Shareholders page.

Read more about how to sell shares of a private company and eligibility for selling privately held stock:

 

Criteria to Buy or Invest in Commonwealth Fusion Systems Stock

Currently, Nasdaq Private Market only works with accredited entities and institutional investors to purchase private company stock. In order to invest in Commonwealth Fusion Systems stock, you need to be an accredited entity or institutional investor.

Learn more about the Nasdaq Private Market tool kit for investors on the Investor Trading page.

Commonwealth Fusion Systems Stock Settlement

Once you buy or sell, stock share ownership must transfer before funds are wired. With Nasdaq Private Market, clients leverage our patent-pending Transfer and Settlement technology which streamlines and manages transfer activity from match to settlement.

To learn more about private company stock Transfer and Settlement, check out the Transfer and Settlement page.

Commonwealth Fusion Systems IPO

Commonwealth Fusion Systems is a private company and has not had an IPO. There is currently no Commonwealth Fusion Systems IPO price. Get started to begin exploring the Nasdaq Private Market Data and Intelligence database and gain access to actionable data related to Commonwealth Fusion Systems IPO.

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