Associated Banc-Corp director granted 36 units

Director Owen J. Sullivan received a small dividend-equivalent equity award tied to prior RSUs, modestly increasing his reported holdings in ASB.

Rhea-AI Filing Summary

ASSOCIATED BANC-CORP (ASB) director Owen J. Sullivan reported an acquisition of equity-based compensation on September 15, 2026. He received 36 dividend equivalent units related to previously granted restricted stock units at a reference value of $30.32 per share, increasing his directly held common stock-equivalent position to 10,121 shares upon vesting and settlement in stock (subject to any deferral election).

Insider Trade Summary

Grant/Award: 36 shares

Grant/Award 1 txn

Insider SULLIVAN OWEN J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock $0.01 Par Value F1	36	$30.32	$1K

Holdings After Transaction: Common Stock $0.01 Par Value — 10,121 shares (Direct)

Footnotes (1)

1. F1. Dividend equivalent units, which vest on the first anniversary of the grant of the restricted stock units to which they relate, are payable solely in shares of common stock upon vesting (subject to deferral if so elected by the Insider).

Key Figures

Dividend equivalent units granted: 36 shares Reference price per share: $30.32 per share Shares held after transaction: 10,121 shares +1 more

4 metrics

Dividend equivalent units granted 36 shares Grant related to existing restricted stock units on September 15, 2026

Reference price per share $30.32 per share Value used for the September 15, 2026 dividend equivalent unit award

Shares held after transaction 10,121 shares Directly held common stock-equivalent position following the reported award

Transaction date September 15, 2026 Date of the dividend equivalent unit acquisition reported on Form 4

Key Terms

Dividend equivalent units, restricted stock units, deferral

3 terms

Dividend equivalent units financial

"Dividend equivalent units, which vest on the first anniversary of the grant"

Dividend equivalent units are bookkeeping credits that mirror cash dividends paid on actual shares, granted to holders of stock-based awards such as restricted stock units or deferred compensation. They matter to investors because they increase a company’s reported employee compensation cost and can lead to issuance of more shares or cash payouts over time, similar to extra pay linked to ownership that affects shareholder dilution and corporate cash flow.

restricted stock units financial

"first anniversary of the grant of the restricted stock units to which they relate"

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.

deferral financial

"payable solely in shares of common stock upon vesting (subject to deferral"

FAQ

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

What insider transaction did ASB director Owen J. Sullivan report?

Owen J. Sullivan reported an acquisition of 36 dividend equivalent units on September 15, 2026, linked to earlier restricted stock units and payable solely in shares of common stock upon vesting, subject to any deferral election he may make.

How many ASB shares does Owen J. Sullivan hold after this Form 4 transaction?

After the reported award, Owen J. Sullivan is shown as directly holding 10,121 shares of Associated Banc-Corp common stock, reflecting the inclusion of the dividend equivalent units payable in shares upon vesting.

What price was used for Owen J. Sullivan’s ASB dividend equivalent unit award?

The 36 dividend equivalent units for Owen J. Sullivan were recorded at $30.32 per share. This value is tied to the award’s accounting for the related restricted stock units, rather than indicating an open-market purchase price.

Were Owen J. Sullivan’s ASB transactions under a Rule 10b5-1 trading plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed, and there is no footnote stating that this dividend equivalent unit award was made pursuant to a Rule 10b5-1 or similar pre-arranged trading plan.

How do the dividend equivalent units reported by ASB for Owen J. Sullivan vest?

The filing states that the dividend equivalent units vest on the first anniversary of the grant of the restricted stock units to which they relate and are payable solely in shares of common stock upon vesting, subject to deferral if elected by Owen J. Sullivan.

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

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Available on EDGAR 09/17/2026 - 01:15 PM Accepted by SEC EDGAR 09/17/2026 - 01:15 PM 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
Estimated average burden
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^*

SULLIVAN OWEN J

(Last) (First) (Middle)

C/O ASSOCIATED BANC-CORP

433 MAIN STREET

(Street)

GREEN BAY WISCONSIN 54301

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ASSOCIATED BANC-CORP [ ASB ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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 $0.01 Par Value	09/15/2026		A(1)		36	A	$30.32	10,121	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. Dividend equivalent units, which vest on the first anniversary of the grant of the restricted stock units to which they relate, are payable solely in shares of common stock upon vesting (subject to deferral if so elected by the Insider).

	/s/ Lynn M. Floeter, by POA from Owen J. Sullivan	09/17/2026
	** 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)