A Form 4 filed with the SEC on September 15, 2026, discloses that John M. Jansen, a director of Oklo Inc. (NASDAQ:OKLO), sold 6,354 shares of Class A Common Stock on September 14, 2026.

Key Highlights

  • Reporting person: John M. Jansen, identified as a Director of Oklo Inc.
  • Transaction: Sale (transaction code S) of 6,354 shares of Class A Common Stock on September 14, 2026.
  • Price: Shares were sold at $36.67 each, according to the filing.
  • Post-transaction ownership: Jansen directly held 6,000 shares following the reported transaction.
  • No derivative transactions: Table II of the filing contains no reported derivative securities activity.

Oklo Director Reports Direct Sale of Class A Common Stock

According to the Form 4 filed on September 15, 2026, John M. Jansen, a director at Oklo Inc., disposed of 6,354 shares of the company's Class A Common Stock at a price of $36.67 per share. The transaction, coded "S" for a sale, was executed on September 14, 2026. The filing lists the ownership form as direct.

Following the reported transaction, Jansen's direct beneficial ownership in Class A Common Stock stood at 6,000 shares, as stated in the filing. The filing includes a footnote noting that for more information about the equity held by the reporting person, readers are directed to the issuer's most recent definitive proxy statement filed with the SEC.

The Form 4 was signed by Richard Craig Bealmear as Attorney-in-Fact on September 15, 2026. No derivative securities activity was reported in Table II of the filing. The filing does not indicate whether the transaction was made pursuant to a Rule 10b5-1 trading plan, as the corresponding checkbox on the form was not checked.

What Was Disclosed

The filing reports a single open-market sale of 6,354 shares of Oklo Inc. Class A Common Stock by director John M. Jansen at $36.67 per share on September 14, 2026, leaving him with 6,000 shares held directly.