SEC Filing Summary for ACI WORLDWIDE, INC.

Katrinka McCallum, a director at ACI WORLDWIDE, INC., acquired 5,720 shares of restricted stock units on June 2, 2026. These shares were awarded under the Company's 2020 Equity and Performance Incentive Plan and vest on the earlier of an anniversary of the grant date, the day before the next annual stockholder meeting, or a change in control. Following this acquisition, Ms. McCallum directly owns 20,201 shares. The transaction was reported on Form 4, filed on June 3, 2026.