CATY · Cathay General Bancorp

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $62.40 to $62.47, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $63.31 to $63.33, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $63.23 to $63.39, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

On June 30, 2026, 1,593 shares of common stock of Cathay General Bancorp were transferred from direct ownership to the Sun Trust as indirect ownership, without the payment of any consideration.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $63.27 to $63.42, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

Each restricted stock unit represented a contingent right to receive one share of Common Stock of the Issuer.

The reporting person previously reported the award of 2,896 shares of restricted stock units on Form 3 filed January 25, 2024. All of these restricted stock units vested on July 27, 2026.

Includes 43.602 shares acquired through dividend reinvestment year-to-date

Each restricted stock unit represented a contingent right to receive one share of Common Stock of the Issuer.

The Reporting Person previously reported the award of 1,448 restricted stock units, on Form 4 filed July 31, 2023. All of the restricted stock units were vested on July 27, 2026.

Includes 43.602 shares acquired through dividend reinvestment year-to-date

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock of the Issuer.

These restricted stock units are scheduled to fully vest on June 26, 2029, or earlier in the event of death, disability, retirement, or change in control.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock of the Issuer.

These restricted stock units are scheduled to vest in 2 annual equal installments beginning June 26, 2027, or earlier in the event of death, disability, retirement, or change in control.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock of the Issuer.

These restricted stock units are scheduled to fully vest on June 26, 2029, or earlier in the event of death, disability, retirement, or change in control.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

Each restricted stock unit represented a contingent right to receive one share of Common Stock upon vesting. The number of restricted stock units that are earned can be reduced by up to 100% of the target award or increased by up to 150% of the target award, depending upon the achievement of certain performance criteria.

These restricted stock units are scheduled to vest in a single installment on December 31, 2028, subject to continued employment, but may vest to some extent earlier in the event of death, disability, retirement after December 31, 2027 or a change in control, with the number of units earned being based on the achievement of certain performance criteria.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $58.78 to $59.06, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $58.36 to $58.43, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $58.01 to $58.34, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.38, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

Includes 26.332 shares acquired through dividend reinvestment year-to-date

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Includes 67.381 shares acquired through dividend reinvestment year-to-date.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

Grant of fully vested common stock of CATY.

This transaction occurred automatically pursuant to a Rule 10b5-1(c) trading plan adopted by the reporting person on May 1, 2025.

The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $50.045 to $50.775, inclusive. The reporting person undertakes to provide to Cathay General Bancorp ("Cathay"), any security holder of Cathay, 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 in this footnote.

Shares of the Issuer's Common Stock received by the Reporting Person from the vesting of performance-based restricted stock units granted on July 27, 2023. Such restricted stock units were previously reported in Table II on a Form 4 filed by the Reporting Person with the Securities and Exchange Commission on July 31, 2023.

Of the previously reported target award of 11,581 shares of performance-based restricted stock units, 121.74% of the target award was earned based upon the achievement of certain performance criteria.

Performance-based restricted stock units vested on December 31, 2025.

Shares of the Issuer's Common Stock received by the Reporting Person from the vesting of performance-based restricted stock units granted on July 27, 2023. Such restricted stock units were previously reported in Table II on a Form 4 filed by the Reporting Person with the Securities and Exchange Commission on July 31, 2023.

Of the previously reported target award of 12,124 shares of performance-based restricted stock units, 150% of the target award was earned based upon the achievement of certain performance criteria.

Performance-based restricted stock units vested on December 31, 2025.