Comparable stake leader
VANGUARD PORTFOLIO MANAGEMENT LLC
SEC ownership of ASSOCIATED BANC-CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000007789.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Sep 2026
- Public ticker
- ASB, ASBA, ASB-PE, ASB-PF on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD PORTFOLIO MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD PORTFOLIO MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
17 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000007789
- Issuer location
- Green Bay, WI
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ASSOCIATED BANC-CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD PORTFOLIO MANAGE...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
17 Sep 2026
13F
13D/G
3/4/5
Lead comparable stake: 6.6%
13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD PORTFOLIO MANAGEMENT LLC leads the comparable SEC ownership view at 6.6%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD PORTFOLIO MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD PORTFOLIO MANAGEMENT LLC
6.6%
Dianne S. Lozier
6.3%
DIMENSIONAL FUND ADVISORS LP
6%
STATE STREET CORP
5.1%
Wende L. Kotouc
5.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
6.6%
from 13D/G
|
$319,012,960
10,367,662 shares
|
— | 30 Jun 2026 |
| Dianne S. Lozier |
13D/G
|
6.3%
|
$309,593,382
11,830,042 shares
|
$0 | 01 Apr 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13F
13D/G
Company
|
6%
from 13D/G
|
$308,891,021
10,038,553 shares
|
— | 30 Jun 2026 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
5.1%
from 13D/G
|
$272,275,207
8,848,723 shares
|
— | 30 Jun 2026 |
| Wende L. Kotouc |
3/4/5
13D/G
Director · John F. Kotouc
|
5.1%
from 13D/G
|
$470,574,246
16,648,333 shares
|
— | 15 Sep 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
4.8%
|
$242,984,741
7,927,724 shares
|
-$13,408,394 | 30 Jun 2026 |
| FMR LLC |
13F
13D/G
Company
|
1.2%
from 13D/G
|
$88,989,032
2,892,071 shares
|
— | 30 Jun 2026 |
| Andrew J. Harmening |
3/4/5
President & CEO, Director
|
0.24%
|
$12,277,491
399,009 shares
|
— | 15 Sep 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$9,948,287.
Buys
$0
Insiders: 0
Sells
$9,948,287
Insiders: 10
Net
-$9,948,287
Shares: -332,088
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 332,088
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 213,871 | $0 | $6,698,303 | -$6,698,303 |
| 3-6 | 0 | 58,610 | $0 | $1,646,401 | -$1,646,401 |
| 6-9 | 0 | 23,656 | $0 | $677,819 | -$677,819 |
| 9-12 | 0 | 35,951 | $0 | $925,764 | -$925,764 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 38 reporting-owner rows connected to ASSOCIATED BANC-CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
38
Largest Forms 3/4/5 holder
Wende L. Kotouc
Net 12M change
-$9,948,288
Latest report
17 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Wende L. Kotouc | Director | $470,574,246 | Mixed | 15 Sep 2026 | ||
| Andrew J. Harmening | President & CEO, Director | $12,277,491 | Mixed | 15 Sep 2026 | ||
| Robert A. Jeffe | Director | $3,841,056 | Mixed | 16 Apr 2026 | ||
| David L. Stein | Executive Vice President | $3,585,081 | Mixed | 16 Jun 2025 | ||
| John A. Utz | Executive Vice President | $3,540,587 | -$1,611,170 | -31% | Mixed | 15 Sep 2026 |
| Cory L. Nettles | Director | $3,100,087 | Mixed | 15 Sep 2026 | ||
| John F. Bergstrom | Director | $2,955,897 | Mixed | 15 Mar 2022 | ||
| Karen van Lith | Director | $2,787,095 | Mixed | 15 Sep 2026 | ||
| Michael J. Haddad | Director | $2,633,863 | Mixed | 15 Sep 2026 | ||
| Eileen A. Kamerick | Director | $2,532,707 | -$184,932 | -6.8% | Mixed | 15 Sep 2026 |
| John B. Williams | Director | $2,506,183 | -$177,905 | -6.6% | Mixed | 15 Sep 2026 |
| R. Jay Gerken | Director | $2,470,611 | Mixed | 16 Mar 2026 | ||
| Judith P. Greffin | Director | $2,030,165 | Mixed | 15 Sep 2026 | ||
| Christopher del Moral-Niles | Chief Financial Officer | $2,018,742 | Mixed | 15 Aug 2022 | ||
| Tammy C. Stadler | Principal Accounting Officer | $1,954,625 | Mixed | 15 Jul 2024 | ||
| Gale E. Klappa | Director | $1,924,371 | Mixed | 16 Mar 2026 | ||
| Derek S. Meyer | EVP, Chief Financial Officer | $1,901,166 | -$307,400 | -14% | Mixed | 15 Sep 2026 |
| Randall J. Erickson | Executive Vice President | $1,797,155 | -$5,025,894 | -74% | Filing P/S | 12 Aug 2026 |
| Patrick Edward Ahern | Executive Vice President | $1,517,968 | -$1,337,436 | -47% | Mixed | 17 Sep 2026 |
| Nicole M. Kitowski | Executive Vice President | $1,496,706 | -$236,871 | -14% | Mixed | 15 Sep 2026 |
Recent insider transactions for ASSOCIATED BANC-CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Patrick Edward Ahern | ASB | Common Stock $0.01 Par Value | Other | 28,057 | 28,057 | 17 Sep 2026 | By Trust | |||
| Patrick Edward Ahern | ASB | Common Stock $0.01 Par Value | Other | -64.1% | -28,057 | 15,686 | 17 Sep 2026 | Direct | ||
| Steven S. Zandpour | ASB | Common Stock $0.01 Par Value | Other | 0.43% | 80.04 | 18,705 | 15 Sep 2026 | Direct | ||
| Terry Lynn Williams | ASB | Common Stock $0.01 Par Value | Other | 0.31% | 76 | 24,412 | 15 Sep 2026 | Direct | ||
| Nicole M. Kitowski | ASB | Common Stock $0.01 Par Value | Other | 0.06% | 25.04 | 45,375 | 15 Sep 2026 | Direct | ||
| Jayne C. Hladio | ASB | Common Stock $0.01 Par Value | Other | 0.08% | 12.83 | 16,659 | 15 Sep 2026 | Direct | ||
| Julio Manso | ASB | Common Stock $0.01 Par Value | Other | 0.21% | 31.87 | 14,946 | 15 Sep 2026 | Direct | ||
| Andrew J. Harmening | ASB | Common Stock $0.01 Par Value | Other | 0.63% | 2,516 | 399,009 | 15 Sep 2026 | Direct | ||
| John A. Utz | ASB | Common Stock $0.01 Par Value | Award | 0.43% | 428 | 99,202 | 15 Sep 2026 | Direct | ||
| John A. Utz | ASB | Common Stock $0.01 Par Value | Other | 0.05% | 44.67 | 98,774 | 15 Sep 2026 | Direct | ||
| Gregory Warsek | ASB | Common Stock $0.01 Par Value | Award | 0.25% | 35 | 13,844 | 15 Sep 2026 | Direct | ||
| Derek S. Meyer | ASB | Common Stock $0.01 Par Value | Award | 0.2% | 124 | 61,786 | 15 Sep 2026 | Direct | ||
| John B. Williams | ASB | Common Stock $0.01 Par Value | Award | 0.56% | 381 | 68,194 | 15 Sep 2026 | Direct | ||
| Karen van Lith | ASB | Common Stock $0.01 Par Value | Award | 0.62% | 381 | 61,592 | 15 Sep 2026 | Direct | ||
| Owen J. Sullivan | ASB | Common Stock $0.01 Par Value | Award | 0.36% | 36 | 10,121 | 15 Sep 2026 | Direct | ||
| Cory L. Nettles | ASB | Common Stock $0.01 Par Value | Award | 0.79% | 371 | 47,630 | 15 Sep 2026 | Direct | ||
| Kristen M. Ludgate | ASB | Common Stock $0.01 Par Value | Award | 0.36% | 36 | 10,121 | 15 Sep 2026 | Direct | ||
| Wende L. Kotouc | ASB | Common Stock $0.01 Par Value | Award | 0.78% | 28 | 3,639 | 15 Sep 2026 | Direct | ||
| Eileen A. Kamerick | ASB | Common Stock $0.01 Par Value | Award | 0.76% | 381 | 50,499 | 15 Sep 2026 | Direct | ||
| Rodney Jones-Tyson | ASB | Common Stock $0.01 Par Value | Award | 0.26% | 36 | 13,940 | 15 Sep 2026 | Direct | ||
| Michael J. Haddad | ASB | Common Stock $0.01 Par Value | Award | 0.41% | 36 | 8,865 | 15 Sep 2026 | Direct | ||
| Michael J. Haddad | ASB | Common Stock $0.01 Par Value | Other | 0.37% | 32.94 | 8,829 | 15 Sep 2026 | Direct | ||
| Judith P. Greffin | ASB | Common Stock $0.01 Par Value | Award | 0.78% | 138 | 17,879 | 15 Sep 2026 | Direct | ||
| Wende L. Kotouc | ASB | Common Stock $0.01 Par Value | Gift | 3,328,692 | 3,328,692 | 10 Sep 2026 | Trust | |||
| Wende L. Kotouc | ASB | Common Stock $0.01 Par Value | Gift | -40% | -3,328,692 | 4,993,039 | 10 Sep 2026 | Spouse | ||
| Patrick Edward Ahern | ASB | Common Stock $0.01 Par Value | Sale | -2.91% | $40,383 | $30.85 | -1,309 | 43,743 | 03 Sep 2026 | Direct |
| Steven S. Zandpour | ASB | Common Stock $0.01 Par Value | Other | 0.4% | 74.97 | 18,625 | 17 Aug 2026 | Direct | ||
| Terry Lynn Williams | ASB | Common Stock $0.01 Par Value | Other | 0.29% | 71.18 | 24,336 | 17 Aug 2026 | Direct | ||
| John A. Utz | ASB | Common Stock $0.01 Par Value | Other | 0.04% | 41.84 | 98,729 | 17 Aug 2026 | Direct | ||
| Julio Manso | ASB | Common Stock $0.01 Par Value | Other | 0.09% | 12.81 | 14,914 | 17 Aug 2026 | Direct | ||
| Nicole M. Kitowski | ASB | Common Stock $0.01 Par Value | Other | 0.05% | 23.45 | 45,350 | 17 Aug 2026 | Direct | ||
| Jayne C. Hladio | ASB | Common Stock $0.01 Par Value | Other | 0.07% | 12.02 | 16,646 | 17 Aug 2026 | Direct | ||
| Gregory Warsek | ASB | Common Stock $0.01 Par Value | Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities | -52.3% | -14,927 | 13,605 | 12 Aug 2026 | By 401(K) Plan | ||
| Gregory Warsek | ASB | Common Stock $0.01 Par Value | Options Exercise | 94.3% | 13,018 | 26,827 | 12 Aug 2026 | Direct | ||
| Gregory Warsek | ASB | Common Stock $0.01 Par Value | Sale | -54.1% | $521,730 | $32.01 | -16,300 | 13,809 | 12 Aug 2026 | Direct |
| Gregory Warsek | ASB | Incentive Stock Option (Right to Buy) | Options Exercise | -100% | -13,018 | 0 | 12 Aug 2026 | Direct | ||
| Randall J. Erickson | ASB | Common Stock $0.01 Par Value | Sale | -43.7% | $1,395,694 | $32.04 | -43,561 | 56,091 | 12 Aug 2026 | Direct |
| Randall J. Erickson | ASB | Common Stock $0.01 Par Value | Options Exercise | 77.7% | 43,561 | 99,652 | 12 Aug 2026 | Direct | ||
| Randall J. Erickson | ASB | Non-qualified Stock Option (Right to Buy) | Options Exercise | -100% | -43,561 | 0 | 12 Aug 2026 | Direct | ||
| John A. Utz | ASB | Common Stock $0.01 Par Value | Sale | -31.1% | $1,410,652 | $31.72 | -44,465 | 98,687 | 04 Aug 2026 | Direct |
| John A. Utz | ASB | Common Stock $0.01 Par Value | Options Exercise | 20.6% | 24,465 | 143,152 | 04 Aug 2026 | Direct | ||
| John A. Utz | ASB | Non-qualified Stock Option (Right to Buy) | Options Exercise | -100% | -24,465 | 0 | 04 Aug 2026 | Direct | ||
| Randall J. Erickson | ASB | Common Stock $0.01 Par Value | Options Exercise | 54.6% | 26,480 | 75,022 | 30 Jul 2026 | Direct | ||
| Randall J. Erickson | ASB | Common Stock $0.01 Par Value | Sale | -65.1% | $2,785,573 | $30.76 | -90,573 | 48,542 | 30 Jul 2026 | Direct |
| Randall J. Erickson | ASB | Non-qualified Stock Option (Right to Buy) | Options Exercise | -100% | -26,480 | 0 | 30 Jul 2026 | Direct | ||
| Derek S. Meyer | ASB | Common Stock $0.01 Par Value | Sale | -14% | $307,400 | $30.74 | -10,000 | 61,662 | 29 Jul 2026 | Direct |
| Nicole M. Kitowski | ASB | Common Stock $0.01 Par Value | Sale | -14.5% | $236,871 | $30.91 | -7,663 | 45,327 | 28 Jul 2026 | Direct |
| Michael J. Haddad | ASB | Phantom Stock Unit | Award | 0.98% | 679 | 70,082 | 20 Jul 2026 | Direct | ||
| Steven S. Zandpour | ASB | Common Stock $0.01 Par Value | Other | 0.43% | 78.8 | 18,550 | 15 Jul 2026 | Direct | ||
| Terry Lynn Williams | ASB | Common Stock $0.01 Par Value | Other | 0.31% | 74.82 | 24,265 | 15 Jul 2026 | Direct |
* marks a reported price that did not pass the local price check.