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OKLO SCHEDULE 13G: SEC filing

Jane Street Group, LLC and its subsidiaries

Filed with the SEC on · accession 0001595888-26-000165

OKLO filed a SCHEDULE 13G (schedule 13g) with the SEC on Nov 12, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -5.5% by the first close after the filing.

Summary of the filing

Jane Street Group, LLC and its subsidiaries filed a Schedule 13G disclosing a passive 5.1% ownership stake in Oklo Inc. as of September 30, 2026.

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Key details

Shares beneficially owned by Jane Street Group, LLC$9.5M
Shares beneficially owned by Jane Street Capital, LLC$8.6M
Shares beneficially owned by Jane Street Global Trading, LLC$984K
Filer / beneficial ownerJane Street Group, LLC
Subsidiary of filer, beneficial ownerJane Street Capital, LLC
Subsidiary of filer, beneficial ownerJane Street Global Trading, LLC
IssuerOklo Inc.
Authorized signatoryJeremy Kahn

How OKLO stock reacted

Close before

$25.86

Nov 11, 2026

First close after

-5.45%

$24.45

5 trading days

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Since filing

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Frequently asked questions

What did OKLO file with the SEC on Nov 12, 2026?

OKLO filed a SCHEDULE 13G (SEC filing). Jane Street Group, LLC and its subsidiaries filed a Schedule 13G disclosing a passive 5.1% ownership stake in Oklo Inc. as of September 30, 2026.

How do I read a SCHEDULE 13G?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G (schedule 13g): A report the company filed with the SEC (the US market regulator).

How did OKLO stock react to this filing?

OKLO closed at $25.86 before the filing and $24.45 on Nov 12, 2026 (-5.45%).

Other OKLO SEC filings

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