[Form 3] ACI WORLDWIDE, INC. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Didier R. Lamouche, a director of ACI Worldwide, Inc. (ACIW), filed an initial Form 3 disclosing beneficial ownership of 3,230 shares of Common Stock held as restricted stock units under the Company’s 2020 Equity and Performance Incentive Plan, as amended. The restricted shares vest on the earlier of the grant anniversary, the day before the next annual meeting, or a change in control. The Form 3 lists 09/25/2025 as the date of the event and is signed 10/03/2025.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Lamouche Didier R

(Last) (First) (Middle)

6060 COVENTRY DRIVE

(Street)

ELKHORN NE 68022

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
09/25/2025

3. Issuer Name and Ticker or Trading Symbol
ACI WORLDWIDE, INC. [ ACIW ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	3,230(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

Remarks:

	Didier R Lamouche	10/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What did Didier R. Lamouche disclose on the Form 3 for ACIW?

The filing discloses ownership of 3,230 restricted stock units in ACI Worldwide (ACIW) held directly.

What is the vesting schedule for the 3,230 restricted stock units?

The restricted shares vest on the earlier of (i) the grant anniversary, (ii) the day before the Company’s next annual meeting, or (iii) a change in control.

What relationship does the reporting person have with ACIW?

The Form 3 indicates the reporting person, Didier R. Lamouche, is a director of ACI Worldwide.

What are the key dates listed in the Form 3 filing?

The event date is listed as 09/25/2025 and the Form 3 is signed on 10/03/2025.

Were any derivative securities or other classes of shares reported?

No. The filing lists only Common Stock (3,230) as restricted stock units and shows no derivative securities.