ACI Worldwide (NASDAQ: ACIW) CEO surrenders stock to cover RSU taxes

Rhea-AI Filing Summary

ACI Worldwide, Inc. director, president and CEO Thomas W. Warsop III reported dispositions of common stock to the company on March 4, 2026. He surrendered 12,268 shares at $42.44 per share and a further 8,762 shares at $42.44 per share in issuer dispositions.

Footnotes explain these shares were surrendered to cover tax liabilities upon vesting of restricted stock units granted on March 4, 2024 and March 4, 2025, rather than open-market sales. His reported direct ownership after these transactions was 298,325 common shares, updated to include 508 shares acquired through the company’s employee stock purchase plan.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Warsop Thomas W III

Role Director, President and CEO

Type	Security	Shares	Price	Value
Disposition	Common Stock	12,268	$42.44	$521K
Disposition	Common Stock	8,762	$42.44	$372K

Holdings After Transaction: Common Stock — 307,087 shares (Direct)

Footnotes (1)

1. 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. 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.

Form 4 Insider Transactions: What Each Field Means →

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^*

Warsop Thomas W III

(Last) (First) (Middle)

6060 COVENTRY DRIVE

(Street)

ELKHORN NE 68022

(City) (State) (Zip)

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

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Director, President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. 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 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	03/04/2026		D		12,268(1)	D	$42.44	307,087(2)	D
Common Stock	03/04/2026		D		8,762(3)	D	$42.44	298,325	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 31,048 shares, representing one third of the restricted stock units granted on March 4, 2024.

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

3. 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.

	Thomas W Warsop, III	03/06/2026
	** 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.

FAQ

What did ACIW CEO Thomas Warsop report in this Form 4 filing?

Thomas W. Warsop III reported issuer dispositions of ACI Worldwide common stock. He surrendered 12,268 shares and 8,762 shares at $42.44 per share, primarily to satisfy tax liabilities tied to vesting restricted stock units granted in 2024 and 2025.

Were the ACIW CEO’s reported share dispositions open-market sales?

No, the reported transactions were issuer dispositions to cover tax liabilities. Footnotes state the shares were surrendered when restricted stock units vested, rather than sold on the open market, which typically reflects tax withholding rather than discretionary share sales.

How many ACIW shares did the CEO surrender in the reported transactions?

Thomas W. Warsop III surrendered 12,268 ACI Worldwide common shares in one disposition and 8,762 shares in a second, each at $42.44 per share. Both transactions were characterized as dispositions to the issuer rather than open-market sales.

What grants triggered the ACIW CEO’s tax-related share surrenders?

The share surrenders relate to restricted stock units that vested from grants made on March 4, 2024 and March 4, 2025. Footnotes note 31,048 and 22,269 RSUs vested, with a portion of resulting shares surrendered to pay associated tax liabilities.

How many ACIW shares does the CEO hold after these transactions?

After the reported issuer dispositions, Thomas W. Warsop III directly owned 298,325 ACI Worldwide common shares. A footnote explains this updated ownership figure includes 508 additional shares acquired under the company’s employee stock purchase plan.

What is the reported transaction price for the ACIW CEO’s share surrenders?

Both dispositions were reported at a transaction price of $42.44 per ACI Worldwide common share. This price was applied to the 12,268-share surrender and the 8,762-share surrender that occurred as part of satisfying tax obligations on vesting restricted stock units.