Banque Transatlantique Reduces Stake in Oklo Inc.

The French bank decreased its holdings in the nuclear microreactor company by 43% in the third quarter.

Mar. 14, 2026 at 7:21am

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Banque Transatlantique SA, a French financial institution, decreased its stake in Oklo Inc. (NYSE:OKLO) by 43% in the third quarter of 2025, according to a recent 13F filing with the U.S. Securities and Exchange Commission. The bank now owns 27,890 shares of the nuclear technology company's stock, worth approximately $3.22 million.

Why it matters

Oklo is a California-based energy technology firm focused on developing advanced nuclear microreactors, a potentially important technology for providing carbon-free power. The reduction in Banque Transatlantique's position could signal a shift in investor sentiment around Oklo and the broader small modular reactor industry.

The details

According to the 13F filing, Banque Transatlantique sold 21,080 shares of Oklo stock during the third quarter, reducing its total holdings to 27,890 shares. The bank cited portfolio rebalancing as the reason for the sale. Oklo's stock price has been volatile in recent months, trading between $17.42 and $193.84 over the past 52 weeks.

  • Banque Transatlantique decreased its Oklo stake in the third quarter of 2025.

The players

Banque Transatlantique SA

A French financial institution that previously held a significant stake in Oklo Inc.

Oklo Inc.

A California-based energy technology company focused on developing advanced nuclear microreactors.

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The takeaway

The reduction in Banque Transatlantique's Oklo holdings could signal broader uncertainty around the future of small modular nuclear reactors, a technology that has generated significant interest but also faces regulatory and commercial challenges.