Oklo 4: Bealmear Richard Craig bought 9,726 shares of Class A Commo… (Feb 4, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-02-02 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Oklo Inc. (OKLO) CIK: 0001849056 --- Reporting Owner --- Name: Bealmear Richard Craig CIK: 0001855623 Role: Officer (Chief Financial Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-02-02 | Code: M (Exercise of derivative) Shares: +9,726 | Price: $3.18 Total Value: $30,928.68 Shares Owned After: 206,639 | Ownership: D (Direct) [Transaction #2] Security: Class A Common Stock Date: 2026-02-02 | Code: S (Open market sale) Shares: -9,726 | Price: $76.93 Total Value: $748,216.32 Shares Owned After: 196,913 | Ownership: D (Direct) Footnotes: [F1] The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on September 22, 2025. [F2] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.90 - $77.07, 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. [Transaction #3] Security: Class A Common Stock Date: 2026-02-03 | Code: M (Exercise of derivative) Shares: +97,342 | Price: $3.18 Total Value: $309,547.56 Shares Owned After: 294,255 | Ownership: D (Direct) --- Derivative Transactions --- [Transaction #1] Security: Stock Options Date: 2026-02-02 | Code: M (Exercise of derivative) Shares: -9,726 | Price: $0.00 Exercisable: N/A | Expires: 2033-08-01 Shares Owned After: 966,033 | Ownership: D (Direct) Footnotes: [F3] The stock option vested as to 20% of the underlying shares on August 1, 2024 and continues to vest thereafter in 48 substantially equal monthly installments. [Transaction #2] Security: Stock Options Date: 2026-02-03 | Code: M (Exercise of derivative) Shares: -97,342 | Price: $0.00 Exercisable: N/A | Expires: 2033-08-01 Shares Owned After: 868,691 | Ownership: D (Direct) Footnotes: [F3] The stock option vested as to 20% of the underlying shares on August 1, 2024 and continues to vest thereafter in 48 substantially equal monthly installments. --- Footnotes (Complete Index) --- F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on September 22, 2025. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.90 - $77.07, 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: The stock option vested as to 20% of the underlying shares on August 1, 2024 and continues to vest thereafter in 48 substantially equal monthly installments. --- Signature --- /s/ /s/ Richard Craig Bealmear (2026-02-04)