OKLO · Oklo Inc. · Insider Trading

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On March 13, 2025 the Reporting Person was granted 57,665 RSUs, vesting as to 20% of the underlying shares on March 13, 2026 and continuing to vest thereafter in 48 substantially equal monthly installments. On October 13, 2026, 961 RSUs were distributed.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On April 13, 2026, the Reporting Person was granted 19,009 RSUs, vesting in 12 substantially equal quarterly installments. On October 13, 2026, 1,521 RSUs were distributed.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On July 17, 2026, the Reporting Person was granted 8,240 RSUs, and the RSUs vest in 12 substantially equal monthly installments. On October 8, 2026, 687 RSUs vested.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs as disclosed on the Reporting Person's Form 4 filed on October 6, 2026. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On February 3, 2025, the Reporting Person was granted 36,508 RSUs, vesting as to 20% of the underlying shares on February 3, 2026 and continuing to vest thereafter in 24 substantially equal monthly installments. On October 3, 2026 1,014 RSUs vested.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

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.

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.

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.39-$36.87 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.

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.

Represents securities held by the Reporting Person's spouse.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.39-$36.87 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.

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.28-$36.39 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.

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.87-$37.50 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.

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.

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

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.87-$37.50 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.

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.28-$36.39 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.

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.

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

This sale reported herein was effected pursuant to a Rule 10b5-1 plan adopted on September 22, 2025.

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.05-$36.28 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.

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.

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

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.05-$36.28 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.

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.

Represents securities held by the Reporting Person's spouse.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On November 4, 2025, the Reporting Person was granted 2,059 RSUs. On September 26, 2026, the RSUs vested in full.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On November 4, 2025, the Reporting Person was granted 2,471 RSUs. On September 26, 2026, the RSUs vested in full.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On November 4, 2025, the Reporting Person was granted 3,294 RSUs. On September 26, 2026, the RSUs vested in full.

The reported transaction represents a gift/charitable donation of securities to National Philanthropic Trust, a Pennsylvania non-profit corporation, to be held in a donor-advised fund.

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.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On March 13, 2025, the Reporting Person was granted 51,659 RSUs, vesting as to 20% of the underlying shares on March 13, 2026 and continuing to vest thereafter in 48 substantially equal quarterly installments. On September 13, 2026, 1,202 RSUs were distributed.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On March 13, 2025 the Reporting Person was granted 57,665 RSUs, vesting as to 20% of the underlying shares on March 13, 2026 and continuing to vest thereafter in 48 substantially equal quarterly installments. On September 13, 2026, 961 RSUs were distributed.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On September 19, 2025, the Reporting Person was granted 210 RSUs. On September 11, 2026, the RSUs vested in full.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On July 17, 2026, the Reporting Person was granted 8,240 RSUs, and the RSUs vest in 12 substantially equal monthly installments. On September 8, 2026, 687 RSUs vested.

Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of the RSUs. The sale was to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

On February 3, 2025, the Reporting Person was granted 36,508 RSUs, vesting as to 20% of the underlying shares on February 3, 2026 and continuing to vest thereafter in 24 substantially equal monthly installments. On September 3, 2026 1,014 RSUs vested.

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.