Caroline Cochran - 01 Jul 2026 Form 4 Insider Report for Oklo Inc. (OKLO)

Reporting relationship: Co-Founder, COO, Director, 10%+ Owner
Issuer ticker: OKLO
Reported as of: 01 Jul 2026
Net transaction value: -$10,585,600
SEC form: 4
Accepted by SEC: 02 Jul 2026, 16:05:08 UTC
Prior SEC filing: 02 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Richard Craig Bealmear, Attorney-in-Fact

Key filing fact

Caroline Cochran filed Form 4 for Oklo Inc. (OKLO) on 02 Jul 2026.

Key facts

This page summarizes Caroline Cochran's Form 4 filing for Oklo Inc. (OKLO).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 02 Jul 2026, 16:05.

Change

Previous filing in this sequence was filed on 02 Jun 2026.
Current net transaction value: -$10,585,600.

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 0002021786 Primary reporting owner

Cochran Caroline

Relationship: Co-Founder, COO, Director, 10%+ Owner
Address: C/O OKLO INC., 3190 CORONADO DR., SANTA CLARA
Signature: /s/ Richard Craig Bealmear, Attorney-in-Fact
Signature date: 02 Jul 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: $3,138,000
Shares: -60,000
Change %: -11%
Price: $52.30
Shares after: 478,039
Date: 01 Jul 2026
Ownership: Direct
Footnotes: F1, F2, F3

OKLO transaction

Class A Common Stock

Sale

Transaction value: $2,131,200
Shares: -40,000
Change %: -6.6%
Price: $53.28
Shares after: 569,479
Date: 01 Jul 2026
Ownership: By Caroline Cochran GRAT
Footnotes: F1, F3, F4

OKLO transaction

Class A Common Stock

Sale

Transaction value: $3,168,000
Shares: -60,000
Change %: -10%
Price: $52.80
Shares after: 511,533
Date: 01 Jul 2026
Ownership: By Jacob DeWitte
Footnotes: F1, F5, F6, F7

OKLO transaction

Class A Common Stock

Sale

Transaction value: $2,148,400
Shares: -40,000
Change %: -6.9%
Price: $53.71
Shares after: 536,483
Date: 01 Jul 2026
Ownership: By Jacob DeWitte GRAT
Footnotes: F1, F6, F8, F9

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,583,085
Date: 01 Jul 2026
Ownership: By the Caroline DeWitte Family Trust
Footnotes: F3

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,000,000
Date: 01 Jul 2026
Ownership: By Caroline DeWitte GRAT No. 2
Footnotes: F3

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 474,011
Date: 01 Jul 2026
Ownership: By Caroline DeWitt GRAT No. 3
Footnotes: F3

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,851,901
Date: 01 Jul 2026
Ownership: By the Jacob DeWitte Family Trust
Footnotes: F6, F9

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,000,000
Date: 01 Jul 2026
Ownership: By Jacob DeWitte GRAT No. 2
Footnotes: F6, F9

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 506,807
Date: 01 Jul 2026
Ownership: By Jacob DeWitte GRAT No.3
Footnotes: F6, F9

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 9 footnotes

Footnote F1

The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.52- $52.51 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Footnote F3

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.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.08- $53.49 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.51-$53.08 inclusive. The Reporting Person's spouse undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Footnote F6

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

Footnote F7

Represents securities held by the Reporting Person's spouse.

Footnote F8

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.49-$54.30 inclusive. The Reporting Person's spouse undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Footnote F9

Represents securities beneficially owned by the Reporting Person's spouse.

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