Welcome to our dedicated page for Oklo SEC filings (Ticker: OKLO), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Oklo Inc. (OKLO) SEC filings document the regulatory record of an advanced nuclear technology company developing fast fission power plants, nuclear fuel recycling and critical isotope supply. For Oklo, quarterly reports and amended quarterly reports are useful for reviewing operating updates, capital-structure disclosure, risk factors and the company’s description of its nuclear development activities.
Oklo’s Form 8-K filings are especially relevant because the company’s business can be affected by material agreements, financing arrangements, officer and director changes, shareholder voting results and other reported events. Recent 8-K categories include material definitive agreements, governance matters and annual meeting results. These filings help investors separate company-disclosed events from general market commentary about advanced nuclear power.
Annual reports, quarterly reports and proxy statements can also show how Oklo explains its business model, emerging growth company status, governance structure, executive compensation framework and stockholder voting matters. The company’s proxy materials and meeting-result filings provide details on board elections, auditor ratification and other shareholder matters.
For OKLO stock research, the most relevant filing types include Form 10-K for annual business and risk disclosure, Form 10-Q for quarterly updates, Form 8-K for material events, and DEF 14A proxy statements for governance and compensation information. These documents are central to understanding Oklo’s public-company obligations as it works on Aurora powerhouse commercialization, fuel recycling and isotope-related projects.
Oklo Inc. director and Co-Founder/CEO Jacob DeWitte reported open-market sales totaling 200,000 shares of Class A Common Stock on April 1, 2026. The transactions were executed at weighted average prices reported in blocks around $48–$51 per share, with detailed price ranges provided in the notes.
Part of the sales came from shares held directly, leaving DeWitte with 691,533 Class A shares in direct ownership, and part came from indirect holdings, including a Jacob DeWitte GRAT and securities beneficially owned by his spouse and related GRATs. A footnote states that these sales were made under a Rule 10b5-1 plan adopted on March 31, 2025, indicating they were pre-arranged rather than discretionary trades.
Oklo Inc. director and Co-Founder/COO Caroline Cochran reported net open-market sales of 200,000 shares of Class A Common Stock on April 1, 2026. The trades were executed in multiple transactions at weighted average prices ranging from about $47.99 to $51.79 per share under a Rule 10b5-1 trading plan adopted on March 31, 2025.
After these sales, Cochran directly holds 658,039 Class A shares. Additional shares are held indirectly through vehicles such as the Caroline Cochran GRAT, which holds 689,479 shares, and family-related trusts and GRATs associated with Cochran and her spouse, including 7,583,085 shares held by the Caroline DeWitte Family Trust.
Oklo Inc. director and CEO Jacob DeWitte reported internal transfers of Class A common stock among family-related entities. On March 30, 2026, 506,807 shares were distributed from the Jacob DeWitte GRAT to the Jacob DeWitte Family Trust and 474,011 shares from the Caroline Cochran GRAT to the Caroline DeWitte Family Trust as annuity distributions.
On March 31, 2026, those same 506,807 shares and 474,011 shares were contributed to new vehicles, the Jacob DeWitte GRAT No. 3 and Caroline DeWitte GRAT No. 3, respectively. All transactions were coded as "J" (other acquisition or disposition) at a reported price of $0.00 per share, indicating administrative movements rather than open-market buying or selling.
Oklo Inc. Co-Founder and COO Caroline Cochran, a greater-than-10% owner, reported internal movements of Oklo Class A Common Stock among family trusts and grantor retained annuity trusts. On March 30, 2026, 474,011 shares were distributed to the Caroline DeWitte Family Trust from the Caroline Cochran GRAT, and 506,807 shares were distributed to the Jacob DeWitte Family Trust from the Jacob DeWitte GRAT. On March 31, 2026, those same share amounts were contributed to Caroline DeWitte GRAT No. 3 and Jacob DeWitte GRAT No. 3, respectively, all at a reported price of $0.00 per share. The filing also lists post-transaction holdings, including 718,039 shares held directly by Cochran and additional indirect holdings through several GRATs and family trusts.
OKLO reported notifications of proposed sales under Rule 144 for Class A shares by an affiliate. The filings list multiple dispositions in February–April 2026, including 16,257 shares on 03/02/2026 for $975,420 and 72,090 shares on 03/13/2026 for $4,325,320.70. The notice references options granted 12/23/2023 and lists Fidelity Brokerage Services LLC as the broker.
Oklo Inc. director Richard Kinzley, through the Richard W. and Cynthia M. Kinzley Revocable Trust, reported an open-market sale and a gift of Oklo Class A Common Stock. The trust sold 4,000 shares at an average price of $52.09 per share and made a bona fide gift of 900 shares. After these transactions, the trust holds 15,754 shares indirectly. A footnote also corrects a prior Form 4, reclassifying 3,800 shares from direct to indirect ownership by the trust, noting this is only a change in the form of beneficial ownership with no change in Kinzley’s pecuniary interest.
Oklo Inc. director John M. Jansen reported an open-market sale of 10,500 shares of Class A Common Stock at $51.52 per share. The transaction took place on March 27, 2026 and was a direct ownership sale. Following this trade, Jansen directly holds 12,354 Oklo shares.
Oklo Inc: Schedule 13G/A amendment showing zero beneficial ownership by The Vanguard Group. The filing states The Vanguard Group completed an internal realignment and certain subsidiaries will report holdings separately in reliance on SEC Release No. 34-39538 (January 12, 1998). The filing lists Amount beneficially owned: 0 and Percent of class: 0%.