Radiant Stock
| Valuation | $1.81B1, 2 |
| Valuation Date | Dec 17, 2025 |
| Implied Valuation | $3.05B |
| Last Price | $62.61 |
| 52-Week High | $62.61 |
| 52-Week Low | $19.95 |
| YTD Return | +60.05% |
| 1-Year Return | +194.91% |
| 3-Year Return | n/a |
| Total Funding | $524.75M3, 4 |
| Latest Round Amount | $300M1, 5 |
| Latest Round | Series D |
| Funding Rounds | 5 |
| IPO Status | Unknown |
| Expected IPO Date | n/a |
| Revenue | n/a |
| Revenue Type | n/a |
| P/S Ratio | n/a |
About Radiant
Radiant is a nuclear energy company that builds Kaleidos, a 1 MW portable microreactor meant to replace diesel generators. The helium-cooled reactor uses TRISO fuel and fits in a shipping container that can be moved by truck, ship or plane. Each unit is designed to run for five years between factory refueling and for 20 years in total. Radiant makes money by selling the units outright or through power purchase agreements to military bases, data centers and other off-grid sites. Equinix has preordered 20 reactors, and the U.S. Army has awarded Radiant a contract of up to $750 million to deploy 15 units under the Janus program.
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News
Radiant Wins $750M Contract from U.S. Army to Deliver Energy Independence to U.S. Military Bases
EL SEGUNDO, Calif.--(BUSINESS WIRE)--Radiant, the company building the world's only plug-in ready, transportable commercial nuclear microreactors, today announced that the U.S. Army, in partnership wi...
Standard Nuclear Executes Fuel Supply Agreement with Radiant for TRISO Nuclear Fuel
OAK RIDGE, Tenn.--(BUSINESS WIRE)---- $STDN--Standard Nuclear (NYSE: STDN) (“Standard Nuclear” or the “Company”), a reactor-agnostic producer of TRISO nuclear fuel, and the only U.S. company with indu...
Kaleidos moves to Idaho test facility
Radiant dispatched its 1 MWe Kaleidos microreactor from El Segundo to Idaho National Laboratory's DOME facility for full-power testing, with a campaign targeted to conclude in Q3 2026.
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Kaleidos microreactor begins journey to Idaho
Radiant shipped its 1 MW Kaleidos microreactor by truck from El Segundo, California, to Idaho National Laboratory's DOME test bed. The unit will go through a five-phase campaign, including a 150-hour ...
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TRISO fuel delivered for Kaleidos reactor experiment
The first shipment of Standard Nuclear-fabricated TRISO fuel for Radiant's Kaleidos test arrived at INL's DOME facility. Radiant said the fuel supports a full-power, full-temperature test campaign ahe...
Radiant on Track to Build the First Commercial Nuclear Microreactors Factory in America
The NRC accepted Radiant's 10 CFR Part 70 license application for its R-50 production facility in Oak Ridge, Tennessee, for an expedited review. The license would let Radiant handle and load fuel as i...
Air Force selects Radiant to deliver microreactors to Buckley Space Force Base
The Department of the Air Force and the Defense Innovation Unit selected Radiant to develop and operate a Kaleidos microreactor at Buckley Space Force Base in Colorado. First deliveries are planned fo...
Radiant Adds Lockheed Martin as Strategic Investor to Oversubscribed Funding Round
Lockheed Martin Ventures joined Radiant's oversubscribed Series D as a strategic investor. The amount was not disclosed.
Radiant Nuclear raises $300M for its semi-sized 1 MW reactor
Radiant raised more than $300 million in a Series D led by Draper Associates and Boost VC, valuing the company at more than $1.8 billion. The capital is meant to fund factory scale-up and the 2026 DOM...
Radiant to Build First Portable Nuclear Generator Factory on Tennessee Manhattan Project Site
Radiant said it will build its R-50 factory on a former Manhattan Project site in Oak Ridge, Tennessee, with construction starting in early 2026. The plant is intended to produce up to 50 Kaleidos rea...
Radiant Announces Equinix Preorder & Deposits for 20 Kaleidos Microreactors
Equinix signed a preorder and submitted deposits for 20 Kaleidos microreactors. Each 1 MW unit is designed to run five years between factory refueling.
Radiant Signs Agreement Designed to Deliver Nuclear Microreactor to U.S. Military Base in 2028
Radiant signed an agreement with the Defense Innovation Unit and the Department of the Air Force under the ANPI program. It was the company's first deal aimed at putting a mass-manufactured microreact...
Energy Department Announces First Microreactor Experiments in DOME Test Bed
DOE selected Radiant and Westinghouse for the first fueled tests at INL's DOME facility. Radiant will test its Kaleidos Development Unit, with the first experiment expected as early as spring 2026.
Radiant closes $165 Million Series C with additional funding from Giant Ventures, StepStone, ARK Venture Fund, and others
Radiant closed its Series C at $165 million, bringing total venture funding to $225 million. DCVC led the round, with new checks from StepStone, Giant Ventures, ARK Venture Fund and others.
Uranium Energy Corp and Radiant Industries Announce U.S. Uranium Supply Agreement to Support Deployment of Microreactors, Building the Full Nuclear Power Value Chain in America
NYSE American: UEC CASPER and LARAMIE, Wyo. , May 7, 2025 /PRNewswire/ - Uranium Energy Corp (NYSE American: UEC), (the "Company" or "UEC") and Radiant Industries Incorporated ("Radiant") are pleased ...
Radiant Secures $100 Million in Series C Funding, Plans Milestone Test at INL's DOME Facility
Radiant raised a $100 million Series C led by DCVC, with a16z and Union Square Ventures participating. The company said the round brought total venture funding to $160 million and would fund the Kalei...