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calendar_month Aug 06, 2026

Oklo Stock Trades Flat Despite Breakthrough Nuclear Reactor Milestone

Shares of Oklo Inc. (NYSE:OKLO) are trading flat Thursday morning despite the advanced nuclear technology company announcing a major operational milestone.

Groves Isotope Reactor Reaches Landmark Milestone

Oklo revealed that its Groves Isotope Test Reactor achieved first criticality, reaching a controlled, self-sustaining nuclear chain reaction at low power. The achievement comes less than a year after breaking ground, made possible through authorization under the U.S. Department of Energy’s Reactor Pilot Program.

Management Commentary and Industry Impact

The project marks the first reactor under the pilot program to achieve criticality on private land, constructed from scratch on a greenfield site. The facility is designed to lay the foundation for domestic radioisotope production used in healthcare, industry, space and research applications, while streamlining future commercial powerhouse deployments.

“Reaching criticality in less than a year is an incredible milestone for our team,” said Oklo co-founder and CEO Jacob DeWitte. “Oklo developed Groves from a greenfield site on private land, completed full-scale civil excavation and construction, manufactured or commercially procured all components, including fuel, and developed its operating programs in-house. Taken together, we believe these accomplishments establish a new benchmark for the Reactor Pilot Program and set the stage for the future of advanced nuclear deployment at scale.”

OKLO Shares Pause Thursday Morning

OKLO Price Action: Oklo shares were down 0.81% at $42.64 at the time of publication on Thursday. The stock is near its 52-week low of $36.61, according to Benzinga Pro data.

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