![Jill York](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Jill York
Director/Board Member at
OLD SECOND BANCORP, INC.
Net worth: 526 668 $ as of 2026-05-30
Profile
Jill E.
York is currently an Independent Director at Old Second Bancorp, Inc. since 2020.
Ms. York is also a Member of The American Institute of Certified Public Accountants and the Illinois Certified Public Accountants Society.
Former positions include Director at Payroc LLC, Chief Financial Officer & Executive Vice President at Union Bank (Illinois), Partner at RSM US LLP, Chief Financial Officer & Executive Vice President at MB Financial Bank, NA in 2016, Chief Financial Officer & Vice President at Avondale Financial Services from 2000 to 2001, Trustee at Illinois Wesleyan University, Chief Financial Officer & Senior Vice President at SMBC MANUBANK (California), EVP-Specialty Banking/Mergers & Acquisitions at MB Financial, Inc. from 2016 to 2019, and President & Head-Equipment Finance & Leasing at Fifth Third Bank, NA (Cincinnati, Ohio).
Education includes an undergraduate degree from Illinois Wesleyan University and an MBA from The University of Chicago.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-03-19 | 24,703 ( 0.05% ) | 526 668 $ | 2026-05-30 |
Jill York active positions
| Companies | Position | Start |
|---|---|---|
| OLD SECOND BANCORP, INC. | Director/Board Member | 2020-10-18 |
The American Institute of Certified Public Accountants
 The American Institute of Certified Public Accountants Miscellaneous Commercial ServicesCommercial Services Association of accountants | Corporate Officer/Principal | - |
Illinois Certified Public Accountants Society
 Illinois Certified Public Accountants Society Miscellaneous Commercial ServicesCommercial Services Operates professional association of certified public accountants | Corporate Officer/Principal | - |
Former positions of Jill York
| Companies | Position | End |
|---|---|---|
Fifth Third Bank, NA (Cincinnati, Ohio)
 Fifth Third Bank, NA (Cincinnati, Ohio) Major BanksFinance Operates as a nationally chartered commercial bank | President | 2020-03-31 |
| MB FINANCIAL INC | Director of Finance/CFO | 2015-12-31 |
MB Financial Bank, NA
 MB Financial Bank, NA Major BanksFinance Provides financial solutions to small sized businesses | Director of Finance/CFO | 2016-04-29 |
Union Bank (Illinois)
 Union Bank (Illinois) Regional BanksFinance State chartered commercial bank | Director of Finance/CFO | 2012-01-18 |
Avondale Financial Services
 Avondale Financial Services Financial ConglomeratesFinance Bank holding company | Director of Finance/CFO | 2001-11-05 |
Training of Jill York
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
68
1st degree connections
13
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 13 |
|---|---|
Old Second Bancorp, Inc.
 Old Second Bancorp, Inc. Major BanksFinance Operates as a bank holding company with interest in providing community banking and trust business services | Finance |
Fifth Third Bank, NA (Cincinnati, Ohio)
Fifth Third Bank, NA (Cincinnati, Ohio) Major BanksFinance Operates as a nationally chartered commercial bank | Finance |
MB Financial, Inc.
 MB Financial, Inc. Savings BanksFinance Provides financial services | Finance |
Union Bank (Illinois)
Union Bank (Illinois) Regional BanksFinance State chartered commercial bank | Finance |
RSM US LLP
 RSM US LLP Miscellaneous Commercial ServicesCommercial Services Provides assurance, tax and consulting services | Commercial Services |
MB Financial Bank, NA
MB Financial Bank, NA Major BanksFinance Provides financial solutions to small sized businesses | Finance |
The American Institute of Certified Public Accountants
The American Institute of Certified Public Accountants Miscellaneous Commercial ServicesCommercial Services Association of accountants | Commercial Services |
Avondale Financial Services
Avondale Financial Services Financial ConglomeratesFinance Bank holding company | Finance |
Illinois Wesleyan University
 Illinois Wesleyan University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
The University of Chicago
 The University of Chicago Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
SMBC MANUBANK (California)
 SMBC MANUBANK (California) Regional BanksFinance Operates as a state chartered commercial bank | Finance |
Illinois Certified Public Accountants Society
Illinois Certified Public Accountants Society Miscellaneous Commercial ServicesCommercial Services Operates professional association of certified public accountants | Commercial Services |
Payroc LLC
 Payroc LLC Packaged SoftwareTechnology Services Develops payment processing application | Technology Services |
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