** Shares of Sam Altman-backed nuclear technology firm Oklo OKLO.N up ~4% at $120.38 premarket
** Company says the U.S. Nuclear Regulatory Commission (NRC) has accepted for review its Principal Design Criteria (PDC) topical report under an accelerated timeline
** Report establishes regulatory framework that defines the fundamental safety, reliability, and performance requirements to guide future reactor licensing
** The PDC topical report acceptance aligns with the NRC's ongoing modernization initiatives under the Trump administration, company says
** Up to last close, stock up ~450% YTD
(Reporting by Dharna Bafna in Bengaluru)
((Dharna.bafna@thomsonreuters.com))