DeWitte Jacob 4

4 · Oklo Inc. · Filed Mar 4, 2026

Insider Transaction Report

Form 4

Period: 2026-03-02

Oklo Inc.OKLO

DeWitte Jacob

DirectorCo-Founder, CEO10% Owner

Transactions

Sale
Class A Common Stock
[F1][F2][F3]
2026-03-02$60.44/sh−5,951$359,686→ 742,246 total
Sale
Class A Common Stock
[F1][F4][F3]
2026-03-02$61.49/sh−16,670$1,025,122→ 725,576 total
Sale
Class A Common Stock
[F1][F5][F3]
2026-03-02$62.50/sh−9,329$583,096→ 716,247 total
Sale
Class A Common Stock
[F1][F6][F3]
2026-03-02$63.70/sh−24,211$1,542,144→ 692,036 total
Sale
Class A Common Stock
[F1][F7][F3]
2026-03-02$64.06/sh−3,840$245,980→ 688,196 total
Sale
Class A Common Stock
[F1][F8][F3]
2026-03-02$64.33/sh−40,000$2,573,084→ 1,310,000 total(indirect: By Jacob DeWitte GRAT)
Sale
Class A Common Stock
[F1][F2][F3][F9]
2026-03-02$60.44/sh−5,950$359,626→ 733,073 total(indirect: By Caroline Cochran)
Sale
Class A Common Stock
[F1][F4][F3][F9]
2026-03-02$61.49/sh−16,670$1,025,122→ 716,403 total(indirect: By Caroline Cochran)
Sale
Class A Common Stock
[F1][F5][F3][F9]
2026-03-02$62.50/sh−9,330$583,159→ 707,073 total(indirect: By Caroline Cochran)
Sale
Class A Common Stock
[F1][F6][F3][F9]
2026-03-02$63.70/sh−24,210$1,542,080→ 682,863 total(indirect: By Caroline Cochran)
Sale
Class A Common Stock
[F1][F7][F3][F9]
2026-03-02$64.06/sh−3,839$245,916→ 679,024 total(indirect: By Caroline Cochran)
Sale
Class A Common Stock
[F1][F8][F3][F10]
2026-03-02$64.33/sh−40,000$2,573,084→ 1,310,000 total(indirect: By Caroline Cochran GRAT)

Holdings

Class A Common Stock
(indirect: By Jacob DeWitte GRAT No. 2)
1,000,000
Class A Common Stock
(indirect: By Trust)
7,851,901
Class A Common Stock
[F10]
(indirect: By Caroline DeWitte GRAT No. 2)
1,000,000
Class A Common Stock
[F10]
(indirect: By Trust)
7,583,085

Footnotes (10)

[F1]The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.
[F10]Represents securities beneficially owned by the Reporting Person's spouse.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[F9]Represents securities held by the Reporting Person's spouse.

Signature

/s/ Richard Craig Bealmear, Attorney-in-Fact|2026-03-04

Documents

1 file

4
wk-form4_1772661067.xmlPrimary
FORM 4