John M. Jansen - 27 Mar 2026 Form 4 Insider Report for Oklo Inc. (OKLO)

Reporting relationship: Director
Issuer ticker: OKLO
Reported as of: 27 Mar 2026
Net transaction value: -$540,960
SEC form: 4
Accepted by SEC: 30 Mar 2026, 17:57:58 UTC
Prior SEC filing: 10 Mar 2026
Next SEC filing: 15 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Richard Craig Bealmear, Attorney-in-Fact

Key filing fact

John M. Jansen filed Form 4 for Oklo Inc. (OKLO) on 30 Mar 2026.

Key facts

This page summarizes John M. Jansen's Form 4 filing for Oklo Inc. (OKLO).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 30 Mar 2026, 17:57.

Change

Previous filing in this sequence was filed on 10 Mar 2026.
Current net transaction value: -$540,960.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002021774 Primary reporting owner

Jansen John M

Relationship: Director
Address: C/O OKLO INC., 3190 CORONADO DR., SANTA CLARA
Signature: /s/ Richard Craig Bealmear, Attorney-in-Fact
Signature date: 30 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

OKLO transaction

Class A Common Stock

Sale

Transaction value: $540,960
Shares: -10,500
Change %: -46%
Price: $51.52
Shares after: 12,354
Date: 27 Mar 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.