As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Associated Banc-Corp. The largest reported stake is BlackRock, Inc.'s, at 11.2%. 10 filings are on record since August 11, 2025 (Schedule 13G/A, October 27, 2026).
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Key facts
- · Reporting person: BlackRock, Inc. · Sole voting: 20,534,818 · Shared voting: 0 · Sole dispositive: 21,086,676 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-27
- · Reporting person: Vanguard Capital Management · Sole voting: 1,251,251 · Shared voting: 0 · Sole dispositive: 7,927,724 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-31
- · Holder: Fmr LLC · Percent: 1.2% · SCHEDULE 13G/A
- · Holder: Vanguard Capital Management · Percent: 5.05% · SCHEDULE 13G
- · Holder: Vanguard Portfolio Management · Percent: 6.64% · SCHEDULE 13G
Associated Banc-Corp has 10 Schedule 13D or 13G filings on record since 2025-08-11. 5 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 11.2% | 21,086,676 | SCHEDULE 13G/A, 2026-10-27 | 2026-09-30 |
| Vanguard Portfolio Management | 6.64% | 10,978,739 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 |
| 6.28% | 11,830,042 | SCHEDULE 13G, 2026-04-06 | 2026-04-01 | |
| State Street Corporation | 5.1% | 8,524,500 | SCHEDULE 13G, 2025-08-11 | 2025-06-30 |
| 5.09% | 1,773,132 | SCHEDULE 13D, 2026-04-06 | 2026-04-01 | |
| Vanguard Capital Management | 4.77% | 7,927,724 | SCHEDULE 13G/A, 2026-07-31 | 2026-06-30 |
| Fmr LLC | 1.2% | 2,066,396 | SCHEDULE 13G/A, 2026-05-06 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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Keep reading
More on Associated Banc-Corp and the records around it.
Associated Banc-Corp elsewhere on the record
- Leadership changes Sep 2026
- Who owns it
Companies that share a holder
- STATE STREET CORPORATION also filed stake reports on 343 other companies: TRADE DESK INC/THE (Oct 2026), CENTRUS ENERGY CORP (Sep 2026), ACADIA PHARMACEUTICALS INC (Aug 2026)
- FMR LLC also filed stake reports on 761 other companies: ASPEN NEUROSCIENCE INC (Nov 2026), AVALO THERAPEUTICS INC (Nov 2026), BRAZE INC (Nov 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 20,534,818 | 0 | 21,086,676 | 0 | SCHEDULE 13G/A, 2026-10-27 |
| Vanguard Capital Management | 1,251,251 | 0 | 7,927,724 | 0 | SCHEDULE 13G/A, 2026-07-31 |
The latest filing identifies Associated Banc-Corp by CUSIP 045487105 and gives its principal executive office as 433 MAIN STREET, GREEN BAY, WI 54301 (SCHEDULE 13G/A, 2026-10-27).
Purpose of Transaction (Item 4)
Wende L. Kotouc
The Reporting Persons acquired the shares of Common Stock reported herein for investment purposes. In connection with the completion of the Merger, Wende L. Kotouc was appointed as a director of the Issuer. The Reporting Persons retain the right to change their investment intent, from time to time, to acquire additional shares of Common Stock or other securities of the Issuer, or to sell or otherwise dispose of all or part of the Common Stock or other securities of the Issuer, if any, beneficially owned by them, in each case in any manner permitted by law and the Shareholders' Agreement (defined below). Except as described above, none of the Reporting Persons currently has any other plans or proposals that would be related to or would result in any of the matters described in Items 4(a)-(j) of Schedule 13D.Item 4 of the SCHEDULE 13D filed 2026-04-06
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-11 | State Street Corporation | 5.1% | SCHEDULE 13G |
| 2026-02-05 | Fmr LLC | 6.6% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-06 | Wende L. Kotouc | 5.09% | SCHEDULE 13D |
| 2026-04-06 | Dianne S. Lozier | 6.28% | SCHEDULE 13G |
| 2026-04-28 | Vanguard Portfolio Management | 6.64% | SCHEDULE 13G |
| 2026-04-29 | Vanguard Capital Management | 5.05% | SCHEDULE 13G |
| 2026-05-06 | Fmr LLC | 1.2% | SCHEDULE 13G/A |
| 2026-07-31 | Vanguard Capital Management | 4.77% | SCHEDULE 13G/A |
| 2026-10-27 | BlackRock, Inc. | 11.2% | SCHEDULE 13G/A |
Questions about who owns Associated Banc-Corp
Who owns Associated Banc-Corp?
On this page, 5 holders' latest ownership filings report 5% or more of Associated Banc-Corp: BlackRock, Inc. (11.2%, Schedule 13G/A, filed 2026-10-27), Vanguard Portfolio Management (6.64%, Schedule 13G, filed 2026-04-28), Dianne S. Lozier (6.28%, Schedule 13G, filed 2026-04-06), State Street Corporation (5.1%, Schedule 13G, filed 2025-08-11) and Wende L. Kotouc (5.09%, Schedule 13D, filed 2026-04-06).
Who are the largest shareholders of Associated Banc-Corp?
By the share each holder's latest filing reports, the largest holders of Associated Banc-Corp on this page are BlackRock, Inc. (11.2%), Vanguard Portfolio Management (6.64%) and Dianne S. Lozier (6.28%).
When did BlackRock, Inc. buy into Associated Banc-Corp?
The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G/A, filed 2026-10-27, reporting 11.2%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 10 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Associated Banc-Corp
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 22, 2026 | Leadership change: Randall J. Erickson departs, Executive Vice President, General Counsel and Corporate Secretary | — | Leadership changes | Source |
| September 2, 2026 | Leadership change: Randall J. Erickson departs, Executive Vice President, General Counsel and Corporate Secretary | — | Leadership changes | Source |
| April 1, 2026 | Leadership change: Wende Kotouc appointed, Chief Executive Officer | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.