ACI Worldwide CFO surrenders 2,454 shares for taxes

ACI Worldwide, Inc. Chief Financial Officer Robert William Leibrock reported a disposition of 2,454 shares of Common Stock to the issuer.

Rhea-AI Filing Summary

ACI Worldwide, Inc. Chief Financial Officer Robert William Leibrock reported a disposition of 2,454 shares of Common Stock to the issuer. The shares were surrendered to cover tax liability arising from the vesting of 6,854 shares tied to restricted stock units granted on September 24, 2025. After this tax-related disposition, he directly owns 205,806 shares. This reflects a routine compensation and tax-settlement event rather than an open-market trade.

Insider Trade Summary

Disposition: 2,454 shares

Disposition 1 txn

Insider Leibrock Robert William

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Disposition	Common Stock	2,454	$46.39	$114K

Holdings After Transaction: Common Stock — 205,806 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Shares disposed: 2,454 shares Disposition reference price: $46.39 per share Post-transaction holdings: 205,806 shares +1 more

4 metrics

Shares disposed 2,454 shares Common Stock surrendered to issuer on June 24, 2026

Disposition reference price $46.39 per share Price associated with 2,454-share disposition to issuer

Post-transaction holdings 205,806 shares Common Stock directly owned after the disposition

RSU shares vested 6,854 shares One twelfth of restricted stock units granted on September 24, 2025

Key Terms

restricted stock units, Disposition to issuer, tax liability

3 terms

restricted stock units financial

"representing one twelfth of the restricted stock units granted on September 24, 2025"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Disposition to issuer financial

"transaction_code_description: "Disposition to issuer" for the 2,454-share transaction"

tax liability financial

"shares surrendered by the reporting person to pay the tax liability due upon the vesting"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did ACI Worldwide (ACIW) CFO Robert Leibrock report in this Form 4?

ACI Worldwide CFO Robert Leibrock reported surrendering 2,454 shares of Common Stock to the company. This disposition covered taxes due on the vesting of previously granted restricted stock units, and is a routine compensation-related event rather than an open-market sale.

Was the ACI Worldwide (ACIW) CFO’s Form 4 transaction an open-market sale?

The transaction was not an open-market sale. The 2,454 shares were surrendered to ACI Worldwide to satisfy tax liabilities from the vesting of 6,854 restricted stock unit shares granted on September 24, 2025, making it a standard tax-withholding type event.

How many ACI Worldwide (ACIW) shares did the CFO dispose of and at what price?

Robert Leibrock disposed of 2,454 ACI Worldwide Common Stock shares at a reference price of $46.39 per share. The disposition was to the issuer as part of settling tax obligations related to restricted stock unit vesting, not a discretionary market trade.

How many ACI Worldwide (ACIW) restricted stock unit shares vested for the CFO?

A total of 6,854 shares vested for Robert Leibrock, representing one twelfth of restricted stock units granted on September 24, 2025. Part of these vested shares was surrendered back to ACI Worldwide to cover tax liabilities, as described in the Form 4 footnote.

What are the CFO’s ACI Worldwide (ACIW) holdings after this Form 4 transaction?

Following the tax-related disposition, Robert Leibrock directly holds 205,806 shares of ACI Worldwide Common Stock. This figure reflects his position after surrendering 2,454 shares to the issuer in connection with the vesting of restricted stock units granted in September 2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/26/2026 - 06:08 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Leibrock Robert William

(Last) (First) (Middle)

6060 COVENTRY DRIVE

(Street)

ELKHORN NEBRASKA 68022

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/24/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/24/2026		D		2,454(1)	D	$46.39	205,806	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

Remarks:

	Robert William Leibrock	06/26/2026
	** 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 4 (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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)