![Gisele Marcus](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>)
Gisele Marcus
Director/Board Member at
FIRST MID BANCSHARES, INC.
Net worth: 341 439 $ as of 2026-06-29
Profile
Gisele A. Marcus is currently Chairman at Delta Sigma Theta Sorority, Inc. Since 2022, serves as Independent Director at First Mid Bancshares, Inc., Director at First Mid Bank & Trust NA, and Director at First Mid Wealth Management Co. Since 2021, holds the position of Professor at Washington University in St. Louis.
Since 2020, Vice President-Operations & Client Engagement at One Stone Development Co. LLC.
Formerly Director at First Mid Insurance Group, Inc. From 2019 to 2020, General Manager-Asset Management Services at Thermo Fisher Scientific, Inc. From 2017 to 2019, Chief Financial Operating Officer at St. Louis Regional Chamber & Growth Association.
Education includes an MBA from Harvard Business School and an undergraduate degree from The Martin J.
Whitman School of Management.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-02-16 | 7,100 ( 0.03% ) | 341 439 $ | 2026-06-29 |
Gisele Marcus active positions
| Companies | Position | Start |
|---|---|---|
| FIRST MID BANCSHARES, INC. | Director/Board Member | 2022-01-24 |
First Mid Bank & Trust, National Association
 First Mid Bank & Trust, National Association Major BanksFinance Operates as a national commercial bank | Director/Board Member | 2022-01-24 |
One Stone Development Co. LLC
 One Stone Development Co. LLC Marine ShippingTransportation One Stone Development Co. LLC is a company that operates in the Civil Engineering Construction industry. The company is based in St. Louis, MO. | Chief Operating Officer | 2019-12-31 |
Delta Sigma Theta Sorority, Inc.
 Delta Sigma Theta Sorority, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as an organization for educated women | Chairman | - |
First Mid Wealth Management Co.
 First Mid Wealth Management Co. Miscellaneous Commercial ServicesCommercial Services Provides farm land and agricultural consulting services | Director/Board Member | 2022-01-31 |
Washington University in St. Louis
 Washington University in St. Louis Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | 2020-12-31 |
Former positions of Gisele Marcus
| Companies | Position | End |
|---|---|---|
| THERMO FISHER SCIENTIFIC, INC. | Corporate Officer/Principal | 2019-12-31 |
St. Louis Regional Chamber & Growth Association
 St. Louis Regional Chamber & Growth Association Miscellaneous Commercial ServicesCommercial Services Operates as a chamber of commerce | Director of Finance/CFO | 2018-12-31 |
First Mid Insurance Group, Inc.
 First Mid Insurance Group, Inc. Insurance Brokers/ServicesFinance Provides insurance solutions | Director/Board Member | - |
Training of Gisele Marcus
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
66
1st degree connections
11
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 11 |
|---|---|
First Mid Bancshares, Inc.
 First Mid Bancshares, Inc. Regional BanksFinance Operates as a bank holding company whose subsidiary provides banking services | Finance |
Washington University in St. Louis
Washington University in St. Louis Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
First Mid Bank & Trust, National Association
First Mid Bank & Trust, National Association Major BanksFinance Operates as a national commercial bank | Finance |
First Mid Insurance Group, Inc.
First Mid Insurance Group, Inc. Insurance Brokers/ServicesFinance Provides insurance solutions | Finance |
Thermo Fisher Scientific, Inc.
 Thermo Fisher Scientific, Inc. Medical SpecialtiesHealth Technology Develops, manufactures and markets analytical and environment monitoring instruments | Health Technology |
St. Louis Regional Chamber & Growth Association
St. Louis Regional Chamber & Growth Association Miscellaneous Commercial ServicesCommercial Services Operates as a chamber of commerce | Commercial Services |
Delta Sigma Theta Sorority, Inc.
Delta Sigma Theta Sorority, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as an organization for educated women | Commercial Services |
Harvard Business School
 Harvard Business School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
The Martin J. Whitman School of Management
 The Martin J. Whitman School of Management Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
First Mid Wealth Management Co.
First Mid Wealth Management Co. Miscellaneous Commercial ServicesCommercial Services Provides farm land and agricultural consulting services | Commercial Services |
One Stone Development Co. LLC
One Stone Development Co. LLC Marine ShippingTransportation One Stone Development Co. LLC is a company that operates in the Civil Engineering Construction industry. The company is based in St. Louis, MO. | Transportation |
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