KURA · Kura Oncology, Inc.

The shares sold were acquired by the Reporting Person upon vesting of restricted stock units and performance restricted stock units during the period from January 26, 2022 through January 26, 2026. The sales reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 19, 2026.

This transaction was executed in multiple trades at prices ranging from $9.56 to $9.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

This option vests in full on the one year anniversary of the date of grant.

This option vests in full on the one year anniversary of the date of grant.

This option vests in full on the one year anniversary of the date of grant.

This option vests in full on the one year anniversary of the date of grant.

This option vests in full on the one year anniversary of the date of grant.

This option vests in full on the one year anniversary of the date of grant.

This option vests in full on the one year anniversary of the date of grant.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 18, 2025.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 18, 2025.

678 shares were acquired on May 17, 2026 pursuant to the Issuer's Employee Stock Purchase Plan.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 29, 2025.

2,257 shares were acquired on May 17, 2026 pursuant to the Issuer's Employee Stock Purchase Plan.

This transaction was executed in multiple trades at prices ranging from $8.97 to $9.17. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 4, 2025.

2,256 shares were acquired on May 17, 2026 pursuant to the Issuer's Employee Stock Purchase Plan.

This transaction was executed in multiple trades at prices ranging from $9.28 to $9.49. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Represents stock options exercised.

This option is fully vested.

Represents stock options exercised.

Represents stock options exercised.

This option is fully vested.

Represents stock options exercised.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 2/16/23.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/26/22.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/24.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/25.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/26/22.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/26/22.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/25.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/24.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/25.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/25.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/2/24.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 2/16/23.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/26/24.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 2/16/23.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 1/26/22.

Sell-to-cover for taxes associated with the vesting of an RSU received by the Reporting Person dated 2/7/22.

Grant of Restricted Stock Units (RSUs). The RSUs vest in four equal annual installments on 1/26/27, 1/26/28, 1/26/29 and 1/26/30.

Includes 802 shares acquired on November 17, 2025 pursuant to the Issuer's Employee Stock Purchase Plan.

This option vests in 48 equal monthly installments commencing on the grant date.

This option vests in 48 equal monthly installments commencing on the grant date.

Grant of Restricted Stock Units (RSUs). The RSUs vest in four equal annual installments on 1/26/27, 1/26/28, 1/26/29 and 1/26/30.

Grant of Restricted Stock Units (RSUs). The RSUs vest in four equal annual installments on 1/26/27, 1/26/28, 1/26/29 and 1/26/30.

This option vests in 48 equal monthly installments commencing on the grant date.

Grant of Restricted Stock Units (RSUs). The RSUs vest in four equal annual installments on 1/26/27, 1/26/28, 1/26/29 and 1/26/30.

This option vests in 48 equal monthly installments commencing on the grant date.

This option vests in 48 equal monthly installments commencing on the grant date.

This option vests in 48 equal monthly installments commencing on the grant date.

This option vests in 48 equal monthly installments commencing on the grant date.

Grant of Restricted Stock Units (RSUs). The RSUs vest in four equal annual installments on 1/26/27, 1/26/28, 1/26/29 and 1/26/30.

Cashless exercise and sale of a portion of a stock option to cover estimated payroll tax liability.

Includes 857 shares acquired on May 17, 2025 and 899 shares acquired on November 17, 2025 pursuant to the Issuer's Employee Stock Purchase Plan.

This transaction was executed in multiple trades at prices ranging from $9.77 to $9.82. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Cashless exercise and sale of a portion of a stock option to cover estimated payroll tax liability.

This option is fully vested.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 8, 2025.

This transaction was executed in multiple trades at prices ranging from $10.60 to $11.53. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 8, 2025.

Sell-to-cover for taxes associated with the vesting of 1/6th of the underlying shares of performance-based restricted stock units ("PSUs") granted to the Reporting Person on May 31, 2023. Each PSU represents the contingent right to receive one share of the Issuer's common stock based on the achievement of each of three specified development milestones, and the one-year anniversary of each milestone achievement, subject to the Reporting Person's continuous service on each corresponding vesting date. The performance criteria for one specified development milestone was determined to be met on November 13, 2025, resulting in the vesting of 1/6th of the underlying shares.