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Oklo completes reactor build and reports first revenue

Updated 5 times since CLSTR started tracking revisions of this situation.

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2026-08-25 22:19 UTC → 2026-09-09 22:22 UTC · added removed

Oklo completes reactor achieves criticality build and reports first revenue

In August 2026, Oklo Inc. reached a major technical milestone when its Groves Isotope Test Reactor in Lockhart, Texas, achieved first criticality on August 6. This controlled, self-sustaining nuclear chain reaction occurred less than a year after breaking ground on the greenfield site, making it the first project under the U.S. Department of Energy’s Reactor Pilot Program to reach criticality on privately owned land. Financially, Following the achievement, Oklo announced it completed construction of the Groves One pilot reactor in 229 days. CEO Jacob DeWitte noted this is the “fastest U.S. non-military reactor build completed under modern Department of Energy (DOE) and environmental regulations.” The company intends to use this project as a repeatable blueprint for the AI and manufacturing sectors, with plans to generate revenue from an Idaho radiochemistry lab in early 2027. Financially, Oklo reported its first-ever quarterly revenue of approximately $1.21 million, primarily from services. This figure services, significantly exceeded exceeding analyst estimates of $0.09 million. However, Oklo the company continues to operate at a loss, reporting a year-to-date net loss of $81.6 million through the second quarter of 2026. The While the company maintains $3 billion in liquidity and has raised liquidity, its 2026 capital expenditure guidance to between $400 million and $500 million. While the Groves reactor supports Oklo’s isotope business, the company stock has experienced volatility, recently trading around $43 after reaching a record high of $174.14 in October 2025. Oklo is not yet a commercial power provider. Its primary product, electricity sold via Aurora powerhouses, remains in development. The company has set a target to deploy provider; its first powerhouse Aurora powerhouses remain in 2028, following the Aurora-INL project at the Idaho National Laboratory. The regulatory pathway through the Department of Energy still involves three remaining steps following the completion of the Nuclear Safety Design Agreement development with deployment targets for 2027 and the Preliminary Documented Safety Analysis. 2028. Recent institutional and insider activity includes First Trust Advisors LP reducing its position by 65.1% in the first quarter. Additionally, executive stock sales were recorded in June, and insider by John Hanson sold 539 shares in August and General Counsel Vivek Narayanadas in September, both to cover tax withholding obligations.

Versions

  1. 2026-09-09 22:22 UTC Oklo completes reactor build and reports first revenue
  2. 2026-08-25 22:19 UTC Oklo reactor achieves criticality and reports first revenue
  3. 2026-08-18 16:58 UTC Oklo nuclear reactor development
  4. 2026-08-11 08:13 UTC Oklo nuclear reactor development
  5. 2026-08-09 20:02 UTC Oklo nuclear reactor development
  6. 2026-08-07 15:06 UTC Oklo nuclear reactor development

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