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Commonwealth Fusion Systems Stock

Private Company · Price from Hiive
$242.18 +0.40 (+0.17%)
As of Jul 20, 2026
73.12%
Valuationn/a
Valuation Daten/a
Implied Valuationn/a
Last Price$242.18
52-Week High$246.88
52-Week Low$139.89
YTD Return+11.60%
1-Year Return+73.12%
3-Year Returnn/a
Total Funding$3B1, 2
Latest Round Amount$863M1
Latest RoundSeries B2
Funding Rounds4
IPO StatusUnknown
Expected IPO Daten/a
Revenuen/a
Revenue Typen/a
P/S Ration/a

About Commonwealth Fusion Systems

Commonwealth Fusion Systems is the world's largest private fusion energy company. It is building SPARC, a compact tokamak in Devens, Massachusetts that uses high-temperature superconducting magnets and is designed to produce more power than it consumes. SPARC paves the way for ARC, a 400 megawatt commercial power plant planned for Chesterfield County, Virginia that is expected to put electricity on the grid in the early 2030s. The company plans to make money by selling electricity from its fusion power plants and has already signed offtake agreements with Google and Eni for power from the first ARC plant. CFS was spun out of MIT's Plasma Science and Fusion Center in 2018 and has raised about $3 billion, more than any other private fusion company.

Categories Energy & Climate, Fusion Energy
Founded 2018
Country United States
CEO Bob Mumgaard
Employees 1,0003
Founders Bob Mumgaard, Brandon Sorbom, Dan Brunner, Zach Hartwig, Dennis Whyte, Martin Greenwald
Headquarters Devens, MA

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News

Materion Signs Supply Agreement with Commonwealth Fusion Systems to Provide Beryllium Fluoride for Fusion Energy Technology

MAYFIELD HEIGHTS, Ohio & DEVENS, Mass.--(BUSINESS WIRE)--Materion Corporation (NYSE: MTRN), a global leader in advanced materials solutions, today announced that it entered into an agreement with Comm...

Other symbols: MTRN
9 months ago - Business Wire

Nvidia, Google, and Bill Gates help Commonwealth Fusion Systems raise $863M

Fusion power startup Commonwealth Fusion Systems has raised $863 million from a long list of investors that includes Nvidia, Google, Breakthrough Energy Ventures, and more.

Other symbols: GOOGGOOGLNVDA
11 months ago - TechCrunch

Commonwealth Fusion Systems Raises $863 Million Series B2 Round to Accelerate the Commercialization of Fusion Energy

This round of capital is the largest raised among deep tech and energy companies since CFS' $1.8 billion Series B round in 2021. The almost $3 billion that CFS has raised to date is about one-third of...

Other symbols: GLXY
11 months ago - PRNewsWire

Google makes first foray into fusion in venture with MIT spinoff Commonwealth Fusion Systems

Google announced a partnership with Commonwealth Fusion Systems, or CFS, a private company spun off from the Massachusetts Institute of Technology. The tech giant will buy 200 megawatts of clean fusio...

Other symbols: GOOGGOOGL
1 year ago - CNBC

Google inks its first fusion power deal with Commonwealth Fusion Systems

Fusion power got another boost on Monday as Google announced it will buy half the output of Commonwealth Fusion System's first commercial power plant.

Other symbols: GOOGGOOGL
1 year ago - TechCrunch