Jacob DeWitte - 02 Mar 2026 Form 4 Insider Report for Oklo Inc. (OKLO)

Reporting relationship: Co-Founder, CEO, Director, 10%+ Owner
Issuer ticker: OKLO
Reported as of: 02 Mar 2026
Net transaction value: -$12,658,097
SEC form: 4
Accepted by SEC: 04 Mar 2026, 16:51:10 UTC
Prior SEC filing: 04 Feb 2026
Next SEC filing: 16 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Richard Craig Bealmear, Attorney-in-Fact

Key filing fact

Jacob DeWitte filed Form 4 for Oklo Inc. (OKLO) on 04 Mar 2026.

Key facts

This page summarizes Jacob DeWitte's Form 4 filing for Oklo Inc. (OKLO).
12 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 04 Mar 2026, 16:51.

Change

Previous filing in this sequence was filed on 04 Feb 2026.
Current net transaction value: -$12,658,097.

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 0002021433 Primary reporting owner

DeWitte Jacob

Relationship: Co-Founder, CEO, Director, 10%+ Owner
Address: C/O OKLO INC., 3190 CORONADO DR., SANTA CLARA
Signature: /s/ Richard Craig Bealmear, Attorney-in-Fact
Signature date: 04 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: $359,686
Shares: -5,951
Change %: -0.8%
Price: $60.44
Shares after: 742,246
Date: 02 Mar 2026
Ownership: Direct
Footnotes: F1, F2, F3

OKLO transaction

Class A Common Stock

Sale

Transaction value: $1,025,122
Shares: -16,670
Change %: -2.2%
Price: $61.50
Shares after: 725,576
Date: 02 Mar 2026
Ownership: Direct
Footnotes: F1, F3, F4

OKLO transaction

Class A Common Stock

Sale

Transaction value: $583,096
Shares: -9,329
Change %: -1.3%
Price: $62.50
Shares after: 716,247
Date: 02 Mar 2026
Ownership: Direct
Footnotes: F1, F3, F5

OKLO transaction

Class A Common Stock

Sale

Transaction value: $1,542,144
Shares: -24,211
Change %: -3.4%
Price: $63.70
Shares after: 692,036
Date: 02 Mar 2026
Ownership: Direct
Footnotes: F1, F3, F6

OKLO transaction

Class A Common Stock

Sale

Transaction value: $245,980
Shares: -3,840
Change %: -0.55%
Price: $64.06
Shares after: 688,196
Date: 02 Mar 2026
Ownership: Direct
Footnotes: F1, F3, F7

OKLO transaction

Class A Common Stock

Sale

Transaction value: $2,573,084
Shares: -40,000
Change %: -3%
Price: $64.33
Shares after: 1,310,000
Date: 02 Mar 2026
Ownership: By Jacob DeWitte GRAT
Footnotes: F1, F3, F8

OKLO transaction

Class A Common Stock

Sale

Transaction value: $359,626
Shares: -5,950
Change %: -0.81%
Price: $60.44
Shares after: 733,073
Date: 02 Mar 2026
Ownership: By Caroline Cochran
Footnotes: F1, F2, F3, F9

OKLO transaction

Class A Common Stock

Sale

Transaction value: $1,025,122
Shares: -16,670
Change %: -2.3%
Price: $61.50
Shares after: 716,403
Date: 02 Mar 2026
Ownership: By Caroline Cochran
Footnotes: F1, F3, F4, F9

OKLO transaction

Class A Common Stock

Sale

Transaction value: $583,159
Shares: -9,330
Change %: -1.3%
Price: $62.50
Shares after: 707,073
Date: 02 Mar 2026
Ownership: By Caroline Cochran
Footnotes: F1, F3, F5, F9

OKLO transaction

Class A Common Stock

Sale

Transaction value: $1,542,080
Shares: -24,210
Change %: -3.4%
Price: $63.70
Shares after: 682,863
Date: 02 Mar 2026
Ownership: By Caroline Cochran
Footnotes: F1, F3, F6, F9

OKLO transaction

Class A Common Stock

Sale

Transaction value: $245,916
Shares: -3,839
Change %: -0.56%
Price: $64.06
Shares after: 679,024
Date: 02 Mar 2026
Ownership: By Caroline Cochran
Footnotes: F1, F3, F7, F9

OKLO transaction

Class A Common Stock

Sale

Transaction value: $2,573,084
Shares: -40,000
Change %: -3%
Price: $64.33
Shares after: 1,310,000
Date: 02 Mar 2026
Ownership: By Caroline Cochran GRAT
Footnotes: F1, F3, F8, F10

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,000,000
Date: 02 Mar 2026
Ownership: By Jacob DeWitte GRAT No. 2

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,851,901
Date: 02 Mar 2026
Ownership: By the Jacob DeWitte Family Trust

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,000,000
Date: 02 Mar 2026
Ownership: By Caroline DeWitte GRAT No. 2
Footnotes: F10

OKLO holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,583,085
Date: 02 Mar 2026
Ownership: By the Caroline DeWitte Family Trust
Footnotes: F10

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 10 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 $60.00 - $61.00 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 $61.10 $62.00 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 $62.01- $63.01 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 F6

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.02 - $64.02 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 F7

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.02- $64.71 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 F8

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.01- $64.87 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 F9

Represents securities held by the Reporting Person's spouse.

Footnote F10

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