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OKLO 424B5: Secondary offering

Oklo Inc.

Filed with the SEC on · accession 0001104659-26-106909

OKLO filed a 424B5 (prospectus (offering)) with the SEC on Sep 11, 2026. The final terms of an offering of shares or bonds. The stock moved -9.2% by the first close after the filing.

Summary of the filing

Oklo Inc. filed a prospectus supplement for an at-the-market offering of up to $1,000,000,000 of its Class A common stock through multiple sales agents, with potential forward sale agreements.

For details, click here →How to read a 424B5 →

Key details

Maximum aggregate offering amount$1.0B
Commission rate$2
IssuerOklo Inc.
Sales agentGoldman Sachs & Co. LLC
Sales agentBofA Securities, Inc.
Sales agentCitigroup Global Markets Inc.
Sales agentJ.P. Morgan Securities LLC
Sales agentMorgan Stanley & Co. LLC
Sales agentBarclays Capital Inc.
Sales agentCantor Fitzgerald & Co.
Sales agentGuggenheim Securities, LLC
Sales agentCanaccord Genuity LLC
Sales agentB. Riley Securities, Inc.

How OKLO stock reacted

Close before

$39.88

Sep 10, 2026

First close after

-9.18%

$36.22

5 trading days

-0.58%

$39.65

Since filing

-43.30%

$22.61

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Frequently asked questions

What did OKLO file with the SEC on Sep 11, 2026?

OKLO filed a 424B5 (Secondary offering). Oklo Inc. filed a prospectus supplement for an at-the-market offering of up to $1,000,000,000 of its Class A common stock through multiple sales agents, with potential forward sale agreements.

What does a secondary offering mean for OKLO stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B5?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

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 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did OKLO stock react to this filing?

OKLO closed at $39.88 before the filing and $36.22 on Sep 11, 2026 (-9.18%). Five trading days later: $39.65 (-0.58%).

Other OKLO SEC filings

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