ACIW · Aci Worldwide, Inc.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 6,854 shares, representing one twelfth of the restricted stock units granted on September 24, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 4,113 shares, representing one twelfth of the restricted stock units granted on March 6, 2026.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,959 shares, representing one twelfth of the restricted stock units granted on March 6, 2026.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,469 shares, representing one twelfth of the restricted stock units granted on March 6, 2026.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,358 shares, representing one twelfth of the restricted stock units granted on March 4, 2025

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 277 shares, representing one twelfth of the restricted stock units granted on March 4, 2024 December 4, 2024

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,552 shares, representing one twelfth of the restricted stock units granted on March 4, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 783 shares, representing one twelfth of the restricted stock units granted on March 4, 2024.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 20,522 shares, representing one third of the restricted stock units granted on June 1, 2023.

The amount of securities owned has been updated to include 18 shares acquired under the Company's Employee Stock Purchase Plan.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,498 shares, representing one twelfth of the restricted stock units granted on May 11, 2023.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 749 shares, representing one twelfth of the restricted stock units granted on May 11, 2023.

The amount of securities owned has been updated to include 149 shares acquired under the Company's Employee Stock Purchase Plan.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of performance shares.

The performance shares were granted pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The performance shares were earned upon the attainment of certain performance objectives for the period May 11, 2023 through February 28, 2026.

The performance shares were granted pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The performance shares were earned upon the attainment of certain performance objectives for the period May 11, 2023 through February 28, 2026.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of performance shares.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 6,854 shares, representing one twelfth of the restricted stock units granted on September 24, 2025.

Represents shares of restricted stock units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier to occur of (i) anniversary of the date of grant, (ii) the day immediately prior to the date of the Company's next annual meeting of the stockholders, or (iii) a change in control of the Company.

Represents restricted share units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted share units vest in equal annual installments over a three-year period.

Represents restricted share units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted share units vest in equal quarterly installments over a three-year period.

Represents restricted share units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted share units vest in equal quarterly installments over a three-year period.

Represents restricted share units awarded pursuant to the Company's 2020 Equity and Performance Incentive Plan, as amended. The restricted share units vest in equal quarterly installments over a three-year period.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,358 shares, representing one twelfth of the restricted stock units granted on March 4, 2025

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 22,269 shares, representing one third of the restricted stock units granted on March 4, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 783 shares, representing one twelfth of the restricted stock units granted on March 4, 2024.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,552 shares, representing one twelfth of the restricted stock units granted on March 4, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 277 shares, representing one twelfth of the restricted stock units granted on December 4, 2024

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 31,048 shares, representing one third of the restricted stock units granted on March 4, 2024.

The amount of securities owned has been updated to include 508 shares acquired under the Company's Employee Stock Purchase Plan.

Upon request, the reporting person hereby undertakes to provide 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 purchase price ranged from $40.73 to $41.15, with a weighted average purchase price of $40.978700. Upon request, the reporting person hereby undertakes to provide 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 shares surrendered by the reporting person to pay the tax liability due upon the vesting of 749 shares, representing one twelfth of the restricted stock units granted on May 11, 2023.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,498 shares, representing one twelfth of the restricted stock units granted on May 11, 2023.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 6,855 shares, representing one twelfth of the restricted stock units granted on September 24, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,358 shares, representing one twelfth of the restricted stock units granted on March 4, 2025

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 2,134 shares, representing one twelfth of the restricted stock units granted on March 4, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 3,261 shares, representing one twelfth of the restricted stock units granted on March 4, 2024.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,552 shares, representing one twelfth of the restricted stock units granted on March 4, 2025.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 277 shares, representing one twelfth of the restricted stock units granted on March 4, 2024

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 783 shares, representing one twelfth of the restricted stock units granted on March 4, 2024.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 19,644 shares, representing one third of the restricted stock units granted on November 29, 2023.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 1,498 shares, representing one twelfth of the restricted stock units granted on May 11, 2023.

Represents shares surrendered by the reporting person to pay the tax liability due upon the vesting of 749 shares, representing one twelfth of the restricted stock units granted on May 11, 2023.