# Oklo Inc. (OKLO)

Informational only - not investment advice.

CIK: 0001849056
SIC: 4911 Electric Services
SIC breadcrumb: [Transportation, Communications, Electric, Gas, And Sanitary Services](/division/E/) > [Electric, Gas, And Sanitary Services](/major-group/49/) > [SIC 4911 Electric Services](/industry/4911/)
Latest 10-K filed: 2026-03-17
SEC page: https://www.sec.gov/edgar/browse/?CIK=1849056
Filing source: https://www.sec.gov/Archives/edgar/data/1849056/000162828026018698/oklo-20251231.htm

## Selected Fundamentals
| Metric | Value | Unit | FY | Filed |
| --- | ---: | --- | ---: | --- |
| Net income | -105663000 | USD | 2025 | 2026-03-17 |
| Assets | 1528457000 | USD | 2025 | 2026-03-17 |

## Financials

Annual standardized facts from SEC companyfacts as of latest extracted filing date 2026-03-17. Source: https://data.sec.gov/api/xbrl/companyfacts/CIK0001849056.json. Derived margins, ratios, and free cash flow are computed from the extracted annual SEC facts.

| Metric | 2021 | 2022 | 2023 | 2024 | 2025 |
| --- | ---: | ---: | ---: | ---: | ---: |
| Net income | -1,056,706 | 3,925,770 | -32,173,000 | -73,616,000 | -105,663,000 |
| Operating income | -1,179,760 | -1,809,484 | -18,636,000 | -52,801,000 | -139,294,000 |
| Diluted EPS |  |  | -0.47 | -0.74 | -0.72 |
| Operating cash flow | -1,880,180 | -954,691 | -15,998,000 | -38,390,000 | -82,174,000 |
| Capital expenditures |  |  | 83,000 | 352,000 | 33,205,000 |
| Assets | 504,719,054 | 510,138,267 | 14,885,000 | 281,736,000 | 1,528,457,000 |
| Liabilities | 17,902,885 | 19,396,328 | 49,246,000 | 30,879,000 | 52,247,000 |
| Stockholders' equity | -13,183,831 | -3,079,000 | -34,361,000 | 250,857,000 | 1,476,210,000 |
| Cash and cash equivalents | 3,337,050 | 3,577,359 | 9,868,000 | 97,132,000 | 788,445,000 |
| Free cash flow |  |  | -16,081,000 | -38,742,000 | -115,379,000 |

### Ratios

ROE and ROA use period-end equity/assets. Liabilities / equity uses total liabilities divided by stockholders' equity. Current ratio uses current assets divided by current liabilities when both are reported.

| Metric | 2021 | 2022 | 2023 | 2024 | 2025 |
| --- | ---: | ---: | ---: | ---: | ---: |
| Return on equity |  |  |  | -29.35% | -7.16% |
| Return on assets | -0.21% | 0.77% |  | -26.13% | -6.91% |
| Liabilities / equity |  |  |  | 0.12 | 0.04 |
| Current ratio | 13.46 | 2.70 | 4.43 | 43.47 | 49.08 |

## Quarterly

Quarterly standardized facts from SEC companyfacts as of latest extracted filing date 2026-06-17. Source: https://data.sec.gov/api/xbrl/companyfacts/CIK0001849056.json.

Flow metrics use discrete quarter-length periods from 10-Q/10-Q/A filings. Q4 revenue and net income are derived only when annual FY and nine-month YTD facts exist for the same fiscal year; derived Q4 values are labeled. EPS Q4 is not derived.

| Quarter | End date | Revenue | Net income | Diluted EPS | Method |
| --- | --- | ---: | ---: | ---: | --- |
| 2023-Q2 | 2023-03-31 |  | 3,090,679 |  | reported discrete quarter |
| 2023-Q3 | 2023-06-30 |  | 3,782,431 |  | reported discrete quarter |
| 2023-Q4 | 2023-12-31 |  | 2,576,373 |  | derived Q4 = FY annual - nine-month YTD |
| 2024-Q1 | 2024-03-31 |  | 1,528,369 |  | reported discrete quarter |
| 2024-Q2 | 2024-03-31 |  | -24,022,085 |  | reported discrete quarter |
| 2024-Q2 | 2024-06-30 |  |  | -0.29 | reported discrete quarter |
| 2024-Q3 | 2024-09-30 |  | -9,959,165 | -0.08 | reported discrete quarter |
| 2024-Q4 | 2024-12-31 |  | -10,288,767 |  | derived Q4 = FY annual - nine-month YTD |
| 2025-Q1 | 2025-03-31 |  | -9,810,000 | -0.07 | reported discrete quarter |
| 2025-Q2 | 2025-03-31 |  | -9,810,000 |  | reported discrete quarter |
| 2025-Q2 | 2025-06-30 |  |  | -0.18 | reported discrete quarter |
| 2025-Q3 | 2025-09-30 |  | -29,722,000 | -0.20 | reported discrete quarter |
| 2025-Q4 | 2025-12-31 |  | -41,446,000 |  | derived Q4 = FY annual - nine-month YTD |
| 2026-Q1 | 2026-03-31 |  | -33,065,000 | -0.19 | reported discrete quarter |

## Macro Cross-References
- [CPIAUCSL](/indicator/CPIAUCSL/): Consumer Price Index for All Urban Consumers: All Items in U.S. City Average
- [UNRATE](/indicator/UNRATE/): Unemployment Rate
- [FEDFUNDS](/indicator/FEDFUNDS/): Federal Funds Effective Rate
- [CES0500000003](/indicator/CES0500000003/): Average Hourly Earnings of All Employees, Total Private
- [DFEDTARU](/indicator/DFEDTARU/): Federal Funds Target Range - Upper Limit
- [DFEDTARL](/indicator/DFEDTARL/): Federal Funds Target Range - Lower Limit
- [DGS3MO](/indicator/DGS3MO/): Market Yield on U.S. Treasury Securities at 3-Month Constant Maturity
- [DGS2](/indicator/DGS2/): Market Yield on U.S. Treasury Securities at 2-Year Constant Maturity
- [DGS10](/indicator/DGS10/): Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity
- [DGS30](/indicator/DGS30/): Market Yield on U.S. Treasury Securities at 30-Year Constant Maturity
- [T10Y2Y](/indicator/T10Y2Y/): 10-Year Treasury Constant Maturity Minus 2-Year Treasury Constant Maturity
- [CPILFESL](/indicator/CPILFESL/): Consumer Price Index for All Urban Consumers: All Items Less Food and Energy
- [CPIUFDSL](/indicator/CPIUFDSL/): Consumer Price Index for All Urban Consumers: Food
- [CPIENGSL](/indicator/CPIENGSL/): Consumer Price Index for All Urban Consumers: Energy
- [CUSR0000SAH1](/indicator/CUSR0000SAH1/): Consumer Price Index for All Urban Consumers: Shelter
- [PCEPI](/indicator/PCEPI/): Personal Consumption Expenditures: Chain-type Price Index
- [PCEPILFE](/indicator/PCEPILFE/): Personal Consumption Expenditures Excluding Food and Energy: Chain-type Price Index
- [PPIACO](/indicator/PPIACO/): Producer Price Index by Commodity: All Commodities
- [T10YIE](/indicator/T10YIE/): 10-Year Breakeven Inflation Rate
- [U6RATE](/indicator/U6RATE/): Total Unemployed, Plus All Marginally Attached Workers Plus Total Employed Part Time for Economic Reasons
- [PAYEMS](/indicator/PAYEMS/): All Employees, Total Nonfarm
- [CIVPART](/indicator/CIVPART/): Labor Force Participation Rate
- [EMRATIO](/indicator/EMRATIO/): Employment-Population Ratio
- [UNEMPLOY](/indicator/UNEMPLOY/): Unemployed
- [CE16OV](/indicator/CE16OV/): Employment Level
- [ICSA](/indicator/ICSA/): Initial Claims
- [JTSJOL](/indicator/JTSJOL/): Job Openings: Total Nonfarm
- [JTSQUR](/indicator/JTSQUR/): Quits: Total Nonfarm
- [GDPC1](/indicator/GDPC1/): Real Gross Domestic Product
- [A191RL1Q225SBEA](/indicator/A191RL1Q225SBEA/): Real Gross Domestic Product: Percent Change from Preceding Period
- [INDPRO](/indicator/INDPRO/): Industrial Production: Total Index
- [TCU](/indicator/TCU/): Capacity Utilization: Total Index
- [HOUST](/indicator/HOUST/): New Privately-Owned Housing Units Started: Total Units
- [PERMIT](/indicator/PERMIT/): New Privately-Owned Housing Units Authorized in Permit-Issuing Places: Total Units
- [RSAFS](/indicator/RSAFS/): Advance Retail Sales: Retail Trade
- [PCE](/indicator/PCE/): Personal Consumption Expenditures
- [DSPIC96](/indicator/DSPIC96/): Real Disposable Personal Income
- [PSAVERT](/indicator/PSAVERT/): Personal Saving Rate
- [M2SL](/indicator/M2SL/): M2
- [BOPGSTB](/indicator/BOPGSTB/): U.S. International Trade in Goods and Services: Balance
- [MSPUS](/indicator/MSPUS/): Median Sales Price of Houses Sold for the United States
- [HSN1F](/indicator/HSN1F/): New One Family Houses Sold: United States
- [RHORUSQ156N](/indicator/RHORUSQ156N/): Homeownership Rate in the United States
- [TTLCONS](/indicator/TTLCONS/): Total Construction Spending: Total Construction in the United States
- [RRVRUSQ156N](/indicator/RRVRUSQ156N/): Rental Vacancy Rate in the United States
- [TOTALSL](/indicator/TOTALSL/): Total Consumer Credit Owned and Securitized
- [REVOLSL](/indicator/REVOLSL/): Revolving Consumer Credit Owned and Securitized
- [DRCCLACBS](/indicator/DRCCLACBS/): Delinquency Rate on Credit Card Loans, All Commercial Banks
- [GDP](/indicator/GDP/): Gross Domestic Product
- [GPDI](/indicator/GPDI/): Gross Private Domestic Investment
- [GCE](/indicator/GCE/): Government Consumption Expenditures and Gross Investment
- [PCEC](/indicator/PCEC/): Personal Consumption Expenditures
- [NETEXP](/indicator/NETEXP/): Net Exports of Goods and Services
- [GFDEBTN](/indicator/GFDEBTN/): Federal Debt: Total Public Debt
- [GFDEGDQ188S](/indicator/GFDEGDQ188S/): Federal Debt: Total Public Debt as Percent of Gross Domestic Product
- [FYFSD](/indicator/FYFSD/): Federal Surplus or Deficit
- [FGRECPT](/indicator/FGRECPT/): Federal Government Current Receipts
- [FGEXPND](/indicator/FGEXPND/): Federal Government: Current Expenditures
- [MANEMP](/indicator/MANEMP/): All Employees, Manufacturing
- [USCONS](/indicator/USCONS/): All Employees, Construction
- [USTRADE](/indicator/USTRADE/): All Employees, Retail Trade
- [USFIRE](/indicator/USFIRE/): All Employees, Financial Activities
- [USGOVT](/indicator/USGOVT/): All Employees, Government
- [AWHAETP](/indicator/AWHAETP/): Average Weekly Hours of All Employees, Total Private
- [DGORDER](/indicator/DGORDER/): Manufacturers' New Orders: Durable Goods
- [NEWORDER](/indicator/NEWORDER/): Manufacturers' New Orders: Nondefense Capital Goods Excluding Aircraft
- [BUSINV](/indicator/BUSINV/): Total Business Inventories
- [EXPGS](/indicator/EXPGS/): Exports of Goods and Services
- [IMPGS](/indicator/IMPGS/): Imports of Goods and Services
- [IR](/indicator/IR/): Import Price Index (End Use): All Commodities
- [PPIFIS](/indicator/PPIFIS/): Producer Price Index by Commodity: Final Demand

## Latest quarter (10-Q)

Latest 10-Q source: https://www.sec.gov/Archives/edgar/data/1849056/000162828026034095/oklo-20260331.htm

Extracted structurally from real Item 2 body heading to real Item 3/4 boundary. Published MD&A gate trimmed front/tail over-capture.
Confidence: high
Filing date: 2026-05-12
Report date: 2026-03-31

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations for the three months ended March 31, 2026 and 2025, should be read together with our unaudited condensed consolidated financial statements and related notes included elsewhere in this Quarterly Report and in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2025. The following discussion contains “forward-looking statements” that reflect our future plans, estimates, beliefs, and expected performance. Our actual results may differ materially from those currently anticipated and expressed in such forward-looking statements as a result of a number of factors. We caution that assumptions, expectations, projections, intentions, or beliefs about future events may, and often do, vary from actual results and the differences can be material. Please see “Special Note Regarding Forward-Looking Statements.”

Overview

We founded Oklo in 2013 with the goal of revolutionizing the energy landscape by developing clean, reliable, affordable energy solutions at scale. According to the International Energy Agency, global electricity production is expected to increase over 75% by 2050 driven by electrification of buildings, transportation, and industry; increased use of air conditioning in the developing world; and increased consumption from data centers and cloud services. Our business addresses this demand by producing electricity and heat from our Aurora powerhouses which can run on fresh, recycled, or down-blended nuclear fuel. We are also commercializing nuclear fuel recycling technology that can convert used nuclear fuel into usable fuel for our powerhouses and those of others.

The fast fission reactor technology we are commercializing was demonstrated by the Experimental Breeder Reactor-II (“EBR-II”), a fast fission plant that was operated by the U.S. government for 30 years. Our powerhouse product line, called the “Aurora,” builds on this legacy of proven and demonstrated technology. Our Aurora powerhouse product line is designed with embedded safety features, to be able to run on fresh, recycled, or down-blended fuel, and to produce 15-75 megawatts electric (“MWe”) and has the potential to expand powerhouse size to produce 100 MWe and higher. Because the Aurora powerhouses are designed to operate by utilizing the power of high-energy, or “fast,” neutrons, they are expected to be able to tap into the vast energy reserves remaining in existing used nuclear fuel from conventional nuclear power generation facilities, which only use approximately 5% of the energy potential in the nuclear fuel before needing to refuel. The U.S. nuclear power industry has produced approximately 20% of U.S. electricity over the last 30 years and generated over 90,000 metric tons of used nuclear fuel. We estimate that the existing energy reserves contained in the used nuclear fuel in the U.S. that are made accessible through our fast fission reactor technology are equivalent to approximately 1.2 trillion barrels of oil equivalent (BOE), nearly five times the oil reserves of Saudi Arabia. Fission is an energy-dense process, producing approximately 50 million times more energy than combustion.

We have achieved several significant deployment and regulatory milestones for our first Aurora powerhouse. Notably, we secured a site use permit from the U.S. Department of Energy (“DOE”) for the Idaho National Laboratory (“INL”) site and received a fuel award of five metric tons of HALEU produced from recovered uranium from previously irradiated EBR-II fuel from INL for a commercial Aurora powerhouse in Idaho. Related to the construction and operating licensing process of the Aurora powerhouse, we have also submitted the Nuclear Safety Design Agreement and the Preliminary Documented Safety Analysis to the DOE for the Aurora powerhouse at INL ("Aurora-INL"), which represent the first two of five steps in the DOE regulatory pathway for nuclear facility operation. Early in 2026, the DOE approved the Nuclear Safety Design Agreement. Related to our first Aurora powerhouse, the DOE and the INL have completed the environmental compliance process addressing the DOE requirements for site characterization. This process, resulting in an Environmental Compliance Permit, marks a milestone as we advance our plans to deliver the first commercial advanced fission power plant in the U.S.

We have been tentatively selected to provide electricity and heat to Eielson Air Force Base outside of Fairbanks, Alaska. Our robust pipeline of potential customer engagements spans a number of industries. For example, we have signed non-binding letters of intent with Equinix, Inc. ("Equinix"), Diamondback E&P LLC ("Diamondback Energy"), and Prometheus Hyperscale (formerly Wyoming Hyperscale White Box LLC) ("Prometheus Hyperscale"). In December 2024, we signed a 12 gigawatt (GW) Master Power Agreement with Switch, Ltd. ("Switch"), one of the largest corporate power purchase agreements ("PPA") in history.

On January 5, 2026, we entered into a prepayment agreement (the "Prepayment Agreement") with Meta Platforms, Inc. ("Meta") that advances plans to develop a 1.2 gigawatt power campus in Pike County, Ohio, to support Meta’s data centers. The Prepayment Agreement provides a mechanism for Meta to prepay for power and provide funding to advance powerhouse deployment. Pursuant to the Prepayment Agreement, the Company will use Meta's funding to secure nuclear fuel, advancing the first phase of the project.

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We are exploring opportunities with the Tennessee Valley Authority (“TVA”) to recycle the utility’s used fuel at a new facility and to evaluate potential power sales from future Oklo powerhouses in the region to TVA. The market interest in our solutions exemplifies the potential demand for the size range of the Aurora powerhouse product line and our differentiated business model. We have an ambitious target of deploying our first powerhouse in 2028 amidst a range of supply chain, construction, macroeconomic, and design complexities.

In addition to deployment milestones, we have made significant progress in our nuclear fuel recycling and fuel fabrication efforts and in securing fuel. The DOE has reviewed and approved our Safety Design Strategy, Conceptual Safety Design Report, Nuclear Safety Design Agreement, and Preliminary Documented Safety Analysis for the Aurora Fuel Fabrication Facility at INL—all key milestones as we advance toward our goal of utilizing recovered nuclear material to fuel our first commercial Aurora powerhouse. Our Aurora Fuel Fabrication Facility was also selected under the DOE Fuel Line Pilot Program ("FLPP"). The FLPP allows for acceleration of permitting, construction, and operation of nuclear fuel production lines for research, development, and demonstration purposes, supporting a fast-track approach to commercial licensing. In addition, we successfully completed the first end-to-end demonstration of the key stages of our advanced fuel recycling process, in collaboration with Argonne and INL. This marks a significant step forward in scaling up fuel recycling capabilities and deploying a commercial-scale recycling facility. In September 2025, we announced plans to design, build, and operate a fuel recycling facility in Tennessee as the first phase of an advanced fuel center (the "Advanced Fuel Center") to recycle used nuclear fuel into fuel for fast reactors, including our Aurora powerhouse line. The facility, which includes a roadmap of up to $1.68 billion in investment, will be the first of its kind in the U.S. and we estimate that it has the potential to create more than 800 high-quality jobs. We have completed a licensing project plan for the fuel recycling facility with the NRC and are currently in pre-application engagement with the regulator’s staff.

In December 2025, we completed a fast-spectrum plutonium criticality experiment in collaboration with Los Alamos National Laboratory under the DOE’s reactor pilot program ("RPP"). During the experiment, the system was taken critical and operated through controlled power maneuvers and transients, enabling the collection of operating data related to reactivity feedback and power response. This work places Oklo among a limited number of organizations with modern, experimentally validated operating data for plutonium-fueled fast-spectrum reactor systems, providing empirical validation of key safety and performance characteristics. Plutonium represents a potential near-term fuel option within a DOE-managed framework that complements Oklo’s use of HALEU and longer-term fuel recycling strategy, providing additional flexibility as fuel markets evolve and supporting continued progress toward deployment in alignment with U.S. national priorities.

Fuel is a significant input to enable us to build and operate our powerhouses at scale and generate expected returns. The cost environment for various sources of fuel (including HALEU) has increased significantly in recent years, which is why we are implementing a diversified fuel strategy. Tariffs, supply chain constraints, inflation, and evolving sanctions have impacted the market dynamics around fuel costs and availability. In particular, beyond developing recycling and fuel fabrication facilities, we are evaluating the use of alternative fuel materials, including plutonium currently designated for the DOE’s dilute-and-dispose programs, that may be made available by the U.S. government for use in advanced reactor applications. Any potential use of such materials would be subject to DOE authorization, applicable regulatory approvals, applicable cost recovery requirements, and programmatic determinations regarding material availability. By developing a diverse set of sources of fuel (including plutonium) with a wide range of costs, levels of regulatory oversight, and operational complexities, and having multiple options for fueling our powerhouses, we believe we will better navigate the shifting fuel landscape.

On January 7, 2026, we announced the execution of a DOE Other Transaction Agreement ("OTA") to support the design, construction, and operation of a radioisotope pilot plant (“Radioisotope Pilot Facility”) under the DOE RPP. The execution of the OTA marks the transition from project selection and planning into active execution under DOE authorization. On March 17, 2026, we announced DOE's approval of the Nuclear Safety Design Agreement for our Groves Isotopes Test Reactor at the Radioisotope Pilot Facility, allowing the facility to move into the next phase of project execution under DOE oversight through submission of its Preliminary Documented Safety Analysis for review. Our isotope business will use the Radioisotope Pilot Facility to aid in planning and execution of future commercial radioisotope production facilities. The Radioisotope Pilot Facility may also be used for testing radioisotope production methods to further our production capabilities of medical and research radioisotopes in the U.S., as well as our research efforts and building capabilities for other projects in development. Our isotope business also received a materials license from the NRC authorizing its Idaho radiochemistry laboratory to handle, process, and distribute isotopes, which supports initial commercial sales and further development of domestic isotope processing capabilities.

Our Business Model

We are developing next-generation fast fission power plants called “powerhouses.” In our differentiated build, own, and operate business model, we plan to sell power in the forms of electricity and heat directly to customers, which we believe

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can allow for fast-tracked customer adoption and broader market opportunities

[Excerpt truncated for page length; source filing is linked above.]

## Latest 10-K MD&A

Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary. Published MD&A gate trimmed front/tail over-capture.
Confidence: high

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations for the years ended December 31, 2025 and 2024, should be read together with our consolidated financial statements and related notes included elsewhere in this Annual Report. The following discussion contains “forward-looking statements” that reflect our future plans, estimates, beliefs, and expected performance. Our actual results may differ materially from those currently anticipated and expressed in such forward-looking statements as a result of a number of factors. We caution that assumptions, expectations, projections, intentions, or beliefs about future events may, and often do, vary from actual results and the differences can be material. Please see “Special Note Regarding Forward-Looking Statements.”

Overview

For an overview of the Company, see the information above presented under the section labeled “Item 1. Business,” which is in Part I of this Annual Report.

Impact of Macroeconomic Conditions

The macroeconomic environment both in the U.S. and globally has the potential to impact our business and financial performance. More specifically, factors such as trade agreements, tariffs, interest rates, tax law, labor trends, and fiscal policy could impact the cost to construct and operate our powerhouses, and even impact the future profitability of our operations.

Supply chain vulnerabilities represent a critical area of macroeconomic risk for our business. Global disruptions—whether from geopolitical tensions, natural disasters, or public health crises—can severely impact the availability and cost of essential components for energy infrastructure. These disruptions can lead to extended lead times for specialized equipment, shortages of critical materials, and unexpected cost escalations that complicate project planning and execution. Our reliance on supply networks for turbine components, electrical systems, and construction materials creates exposure to these global supply chain risks.

Inflation remains a significant concern, particularly as it affects construction materials, specialized equipment, and labor costs throughout our project development cycle. These inflationary pressures can erode project margins and complicate long-term capital planning efforts.

Economic growth and recession cycles directly correlate with energy demand across industrial, commercial, and residential sectors. During economic downturns, we typically experience reduced consumption patterns, while periods of growth drive increased energy needs, affecting our revenue projections and expansion strategies.

Demand for energy in the U.S. is currently being driven by the explosive growth in the data center industry, particularly as AI deployment, cloud computing adoption, and digital transformation initiatives accelerate across sectors. Should power demand growth in the AI data center market slow, customer demand for our baseload low-carbon power could be negatively impacted.

Key Components of Results of Operations

Operating Expenses

Our operating expenses consist of research and development and general and administrative expenses.

Research and Development

Research and development (“R&D”) expenses represent costs incurred to develop our technologies. These costs consist of personnel costs, including salaries, employee benefit costs, bonuses, and stock-based compensation expenses, software costs, computing costs, hardware and experimental supplies, and expenses for outside engineering contractors for analytical work and consulting costs. We expense all R&D costs in the periods in which they are incurred; however, occasionally, reimbursements could be received in the following period.

We have several recycling technology projects awarded as R&D cost-share projects (the “cost-share projects”) through the DOE’s Advanced Research Projects Agency – Energy (“ARPA-E”) and the DOE Technology Commercialization Fund (“TCF”). The ARPA-E and TCF projects involve cost-sharing of project costs as well as reimbursement of certain

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qualifying expenditures to us. A budget was initially approved for each of these cost-share projects, and as certain expenses and capital expenditures for equipment are incurred, such expenses or capital expenditures are reported to ARPA-E, and then a pre-determined percentage of such expenses or capital expenditures are reimbursed by ARPA-E back to us. The expenses are categorized as R&D expenses, which are then partially reimbursed.

General and Administrative

Our general and administrative (“G&A”) expenses primarily comprise various components not related to R&D, such as personnel costs, regulatory fees, promotion expenses, costs associated with maintaining and filing intellectual property, meals and entertainment expenses, travel expenses, and other expenditures related to external professional services including legal, engineering, marketing, human resources, procurement, audit, finance, and accounting services. Personnel costs include salaries, benefits, and stock-based compensation expenses. As we continue to grow and expand our workforce and operations, and in light of the increased costs associated with operating as a public company, we anticipate that our G&A expenses will rise for the foreseeable future.

Other Income (Loss)

Other income (loss) consists of interest and dividend income on our portfolio of marketable debt securities and the remeasurement losses related to simple agreements for future equity.

Income Taxes

Income taxes consist of income taxes in jurisdictions in which we conduct business. We have a full valuation allowance for deferred tax assets, including net operating loss carryforwards and tax credits related primarily to R&D. Prior to the Recapitalization, income taxes have been minimal. After the Recapitalization, as a result of our interest and dividend income from our investments, federal and state income taxes may be incurred, after available tax deductions, including tax attribute carryovers.

Results of Operations

The following tables set forth our consolidated results of operations for the years indicated. The year-over-year comparison of financial results is not necessarily indicative of future results.

Comparison of the Years Ended December 31, 2025 and 2024

The following table sets forth our consolidated financial results for the years indicated, and the changes between years:

Years Ended December 31,

2025 versus 2024

(in thousands)

2025

2024

$ Change

% Change

Operating expenses

Research and development

$

58,852 

$

26,711 

$

32,141 

120.3 

%

General and administrative

80,442 

26,090 

54,352 

208.3 

%

Other income (loss)

Change in fair value of simple agreement for future equity

— 

(27,864)

27,864 

NM

Interest and dividend income

29,102 

7,732 

21,370 

276.4 

%

Income tax benefit (expense)

4,529 

(683)

5,212 

NM

Percentage changes that are considered not meaningful are denoted with “NM.”

Research and Development

R&D expenses increased by $32.1 million from 2024 to 2025, primarily driven by increases in employee compensation expenses of $16.0 million, and professional services of $8.5 million. The increase in employee compensation expenses was primarily driven by an increase headcount of approximately 68 employees from the prior year comparable period, and an increase in stock-based compensation costs of $4.5 million. The increase in professional services was primarily driven by an increase in costs from third-party service providers.

General and Administrative

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G&A expenses increased by $54.4 million from 2024 to 2025, primarily driven by increases in employee compensation expenses of $10.6 million and professional services of $11.7 million. The increase in employee compensation expenses was primarily driven by an increase headcount of approximately 53 employees from the prior year comparable period, and an increase in stock-based compensation costs of $24.9 million. The increase in professional services was primarily driven by an increase in costs for professional services.

Other Income (Loss)

Interest and dividend income increased by $21.4 million from 2024 to 2025, primarily driven by an increase in our cash, cash equivalents and marketable debt securities balances from the prior year period as a result of equity issuances during 2025.

Liquidity and Capital Resources

As of December 31, 2025, our cash, cash equivalents, and marketable debt securities were $1,412.5 million. We continue to incur significant operating losses. For the year ended December 31, 2025, we had a net loss of $105.7 million, loss from operations of $139.3 million, and net cash used in operating activities of $82.2 million. As of December 31, 2025, we had an accumulated deficit of $240.8 million. Management expects that significant ongoing operating expenditures will be necessary to successfully implement our business plan, develop our powerhouses, acquire fuel for those powerhouses, develop our fuel fabrication and recycling facilities, and expand our radioisotope business.

We will utilize our existing cash, cash equivalents, and marketable debt securities to fund construction of our powerhouses, fuel fabrication, and recycling facilities, as well as our radioisotopes business, business operations, and growth plans, and we believe that our existing cash, cash equivalents, and marketable debt securities will be sufficient to fund our operations for the one-year period following the issuance date of the accompanying consolidated financial statements as of and for the year ended December 31, 2025.

Off-Balance Sheet Arrangements

We did not have any off-balance sheet arrangements as of December 31, 2025.

Commitments and Contractual Obligations

We did not have any material commitments or contractual obligations as of December 31, 2025.

Cash Flows Comparison

The following table sets forth our cash flows for the period indicated.

Comparison for the Years Ended December 31, 2025 and 2024

Years Ended December 31,

(in thousands)

2025

2024

 Net cash used in operating activities

$

(82,174)

$

(38,390)

 Net cash used in investing activities

(489,679)

(175,774)

 Net cash provided by financing activities

1,263,166 

301,428 

 Net increase in cash and cash equivalents

$

691,313 

$

87,264 

 Cash and cash equivalents, end of year

$

788,445 

$

97,132 

Operating Activities

Net cash used in operating activities was $82.2 million in 2025, compared to $38.4 million in 2024. The $43.8 million increase in net cash used in operating activities from 2024 to 2025 was primarily driven by operating expenses as we continue to scale our operations, consisting of $37.2 million cash used for payroll and employee benefits of personnel and $70.6 million in other costs, primarily consisting of professional services for consulting on research and development activities, and legal and accounting fees on general and administrative activities. These increases were partially offset by

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$25.6 million in higher cash interest and dividend income, resulting from our increased balance of cash, cash equivalents and marketable debt securities.

Investing Activities

Net cash used in investing activities was $489.7 million in 2025 compared to $175.8 million in 2024. The increase in net cash used in investing activities of $313.9 million from 2024 to 2025 was primarily from cash used for the purchase of marketable debt securities, offset from proceeds from redemptions, netting $443.5 million, capital expenditures related to deployment of our planned facilities of $33.2 million and purchases of other investments of $12.1 million.

Financing Activities

Net cash provided by financing activities was $1,263.2 million in 2025 compared to $301.4 million in 2024. The increase in net cash provided by financing activities of $961.8 million from 2024 to 2025 was primarily from proceeds from the issuance and sale of shares of our common stock in connection with our underwritten public offerings and ATM programs of $1,263.6 million.

Critical Accounting Estimates

Our financial statements have been prepared in accordance with U.S. generally accepted accounting principles. In the preparation of these consolidated financial statements, we are required to use judgment in making estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the financial statements, as well as the reported expenses incurred during the reporting periods. On an ongoing basis, we evaluate our estimates and assumptions. Our actual results may differ from these estimates under different assumptions or conditions.

We consider an accounting judgment, estimate or assumption to be critical when (1) the estimate or assumption is complex in nature or requires a high degree of judgment and (2) the use of different judgments, estimates and assumptions could have a material impact on the consolidated financial statements. See Note 2—Summary of Significant Accounting Policies, in our accompanying consolidated financial statements for a description of our significant accounting policies.

Accordingly, these are the policies and estimates we believe are the most critical to aid in fully understanding and evaluating our consolidated financial condition and results of operations:

Determination of fair value for the acquisition of a business

The determination of fair value for the acquisition of a business in business combination requires the allocation of the purchase price to the various assets acquired and liabilities assumed at their respective fair values. The determination of fair value requires the use of significant estimates and assumptions, and in making these determinations, management uses all available information. If necessary, we have up to one year after the acquisition closing date to finalize these fair value determinations under the applicable U.S. GAAP. For tangible and identifiable intangible assets acquired in a business combination, the determination of fair value utilizes several valuation methodologies including discounted cash flows which has assumptions with respect to the timing and amount of future revenue and expenses associated with an asset. The assumptions made in performing these valuations include, but are not limited to, discount rates, future revenues and operating costs, projections of capital costs, and other assumptions believed to be consistent with those used by principal market participants. Due to the specialized nature of these calculations, we engage third-party specialists to assist management in evaluating our assumptions as well as appropriately measuring the fair value of assets acquired and liabilities assumed.

Goodwill and our indefinite-lived intangible assets related to in-process research and development (IPR&D), are tested for impairment annually or more frequently if events or changes in circumstances indicate potential impairment. The fair value determination involves significant judgment, including assumptions about future cash flows, discount rates, and market conditions. Because these assumptions are inherently uncertain and subject to change, they may vary based on changes in facts and circumstances. A change in any of these assumptions could materially affect the estimated fair value of goodwill and intangible assets and result in an impairment charge. Potential events that could negatively affect these assumptions include regulatory delays, adverse market conditions, and operational challenges.

Emerging Growth Company Status

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The Company is classified as an emerging growth company (“EGC”), as defined under the Jumpstart Our Business Startups Act (the “JOBS Act”). Therefore, we may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not EGCs. We will retain EGC status until December 31, 2026.

Further, Section 102(b)(1) of the JOBS Act exempts EGCs from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-EGCs, but any such election to opt out is irrevocable. We intend to take advantage of the benefits of this extended transition period.

Recent Accounting Pronouncements

See Note 2—Summary of Significant Accounting Policies of our consolidated financial statements included in Part II, Item 8 of this Annual Report for a discussion about Recently Issued and Adopted Accounting Standards Recently Issued and Not Adopted Accounting Standards as of the date of this Annual Report.
