** Shares of Sam-Altman backed nuclear technology company Oklo OKLO.N up 6.4% at $55.7 premarket

** Co says the U.S. Department of Energy (DOE) has approved the Documented Safety Analysis (DSA) for Oklo's Groves Isotope Test Reactor in Texas

** The DSA approval follows the Preliminary Documented Safety Analysis (PDSA) approval, which set the initial safety plan - OKLO

** Co says Groves now enters DOE’s final pre-startup phase, including readiness review, fuel loading, and startup approval before first criticality

** Co expects first criticality, meaning the first self-sustaining chain reaction at the Groves facility, in July 2026

** At last close, OKLO down 27.1% YTD