Commonwealth Fusion Systems
Commonwealth Fusion Systems develops commercial fusion energy, notably the SPARC device, which utilizes powerful high-temperature superconducting magnet technology.
Secondary Market Price
Secondary Market Price
How Commonwealth Fusion Systems Measures Up
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Prospect Rating
Exit Risk
Funding Stage
Series B2
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Company Description
Commonwealth Fusion Systems (CFS) is a company developing commercial fusion energy solutions. A spin-off from the Massachusetts Institute of Technology (MIT) founded in 2018, the company is currently designing and building SPARC, a compact fusion device intended to produce more energy than it consumes. The core of its approach involves the use of high-temperature superconducting magnets, a technology CFS developed to enable commercial fusion. Headquartered in Devens, Massachusetts, the company has raised nearly $3 billion in capital to fund its operations.
Looking forward, CFS aims to deliver a commercial fusion power plant to the electrical grid by the early 2030s and is working to scale up the manufacturing and industrial deployment of its technology. The company is also advocating for expanded public-private partnerships to accelerate fusion commercialization in the United States. Recent company announcements include the completion of an $863 million funding round and progress in the manufacturing of toroidal field magnets for the SPARC device. Additionally, CFS is scheduled to participate in CES 2026, where its CEO will be a keynote speaker and the company will exhibit one of its superconducting magnets.
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- Daniel Aegerter
- Co-Founder, CEO Robert (Bob) Mumgaard
- Co-Founder, Chief Scientist Brandon Sorbom
- Co-Founder, Senior Fusion Advisor Dennis Whyte
- Co-Founder, Head of Safety Zachary (Zach) Hartwig
- Co-Founder, Chief Technology Officer Daniel (Dan) Brunner
- Co-Founder, Senior Science Advisor Martin Greenwald
Peer Group Comparison
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Frequently Asked Questions
Joining Anduril as an employee is another way to acquire equity, typically through stock options included in compensation packages.
Is Commonwealth Fusion Systems worth joining?
Deciding to join a company depends on many personal and professional factors. If a significant part of your compensation is equity, tools like Prospect's predictive models can help you understand its potential future value to make a more informed decision.
What should I do with my Commonwealth Fusion Systems stock?
The right strategy for your stock depends on your financial goals, tax situation, and the company's performance. Platforms like Prospect offer personalized, tax-optimized strategies to help you decide when to exercise options or sell shares to maximize your after-tax value.
Can you sell Commonwealth Fusion Systems stock?
As a private company, selling stock is typically restricted to specific events like tender offers or on secondary markets, and is not as simple as selling public stock. Prospect provides Tender Offer Tools and access to secondary market data to help you navigate these liquidity opportunities when they arise.
How can I find the value of my Commonwealth Fusion Systems stock?
Valuing private stock can be complex, often relying on the company's latest 409A valuation or secondary market transactions. To get a more forward-looking estimate, you can use platforms like Prospect, which use proprietary models to project the future value of your shares.
What is Commonwealth Fusion Systems's equity worth?
The total worth of the company's equity is determined by its latest funding round valuation, but this doesn't always reflect the price you could get for your shares. Tools like Prospect can help you forecast your personal equity's potential value based on various growth scenarios and market data, which you can see in a product demo.
What is Commonwealth Fusion Systems's stock ticker symbol?
Commonwealth Fusion Systems is a private company, so it does not have a stock ticker symbol and is not traded on public stock exchanges. Ticker symbols are assigned only when a company becomes publicly traded through an Initial Public Offering (IPO).
Can I buy or sell Commonwealth Fusion Systems stock?
As a private company, buying shares is usually limited to accredited investors in specific funding rounds, while selling is typically possible only during company-approved events. For employees, navigating selling opportunities like tender offers can be complex, and a platform like Prospect can provide guidance on tax-optimal strategies.
What is the criteria to buy or invest in Commonwealth Fusion Systems stock?
Investing in a private company like Commonwealth Fusion Systems is typically limited to accredited investors during specific funding rounds or employees who receive equity as compensation. If you are an employee with equity, you can use a service like Prospect to manage and optimize your holdings.
