![Theresa Shaw](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>)
Theresa Shaw
Director/Board Member at
AMEREN ILLINOIS COMPANY
Net worth: 4 M $ as of 30/06/2026
Profile
Theresa A. Shaw currently serves as CAO, Director, Chief Transformation Officer & SVP at Ameren Illinois Co. since 2018.
Ms. Shaw is Director at SERC Reliability Corp.
Ms. Shaw holds the position of Chief Accounting Officer & Senior VP-Finance at Ameren Corp.
since 2021.
Ms. Shaw is Chief Accounting Officer & Senior VP-Finance at Union Electric Co. Ms. Shaw is a Member of Edison Electric Institute, Inc. Formerly, Ms. Shaw was Vice President-Internal Audit at Ameren Corp.
from 2014 to 2018.
Ms. Shaw completed undergraduate and graduate degrees at the University of Illinois At Urbana–Champaign.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
AMEREN CORPORATION 0.01% | 14/05/2026 | 33,540 ( 0.01% ) | 4 M $ | 30/06/2026 |
Theresa Shaw active positions
| Companies | Position | Start |
|---|---|---|
| AMEREN ILLINOIS COMPANY | Director/Board Member | 21/02/2023 |
| AMEREN CORPORATION | Comptroller/Controller/Auditor | 16/08/2021 |
| UNION ELECTRIC CO | Comptroller/Controller/Auditor | - |
Edison Electric Institute, Inc.
 Edison Electric Institute, Inc. Miscellaneous Commercial ServicesCommercial Services Offers reference materials and information resources on the electricity industry to its members | Corporate Officer/Principal | - |
SERC Reliability Corp.
 SERC Reliability Corp. General GovernmentGovernment SERC Reliability Corp. is an organization established in 1970 that advances the reliability, security, and adequacy of the bulk-power system across a large portion of the southeastern United States, serving over 100 million people. The non-profit company is based in Charlotte, NC. It operates under federal energy regulatory commission-approved delegation agreements with the North American Electric Reliability Corporation (NERC) and provides leadership, strategic oversight, and technical guidance through its board of directors and committees focused on operations, engineering, critical infrastructure protection, standards development, and security. SERC divides its service area into subregions aligned with utility and transmission operator groupings to facilitate reliability assessments, planning coordination, and performance analysis. The organization conducts risk-based, data-driven reliability assessments, performance analyses, situation awareness, and event analysis to identify and mitigate risks from extreme weather, cyber threats, and emerging technologies. It supports compliance monitoring, enforcement, registration, and certification programs to ensure adherence to reliability standards. Membership is voluntary and free for eligible entities, offering benefits such as participation in committees, access to technical documents, training, and collaboration opportunities. Educational resources are provided through SERC University, webinars, podcasts, newsletters, and a resource library covering topics like supply chain security and insider threat mitigation. SERC operates a voluntary assistance program offering confidential support to registered entities to improve reliability and security. | Director/Board Member | - |
Former positions of Theresa Shaw
| Companies | Position | End |
|---|---|---|
| AMEREN CORPORATION | Corporate Officer/Principal | 01/01/2018 |
Training of Theresa Shaw
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
64
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
Ameren Corp.
 Ameren Corp. Electric UtilitiesUtilities Engages in electric generation, transmission and natural gas distribution services | Utilities |
Union Electric Co.
 Union Electric Co. Electric UtilitiesUtilities Generates, transmits and distributes electric power & gas | Utilities |
Edison Electric Institute, Inc.
Edison Electric Institute, Inc. Miscellaneous Commercial ServicesCommercial Services Offers reference materials and information resources on the electricity industry to its members | Commercial Services |
SERC Reliability Corp.
SERC Reliability Corp. General GovernmentGovernment SERC Reliability Corp. is an organization established in 1970 that advances the reliability, security, and adequacy of the bulk-power system across a large portion of the southeastern United States, serving over 100 million people. The non-profit company is based in Charlotte, NC. It operates under federal energy regulatory commission-approved delegation agreements with the North American Electric Reliability Corporation (NERC) and provides leadership, strategic oversight, and technical guidance through its board of directors and committees focused on operations, engineering, critical infrastructure protection, standards development, and security. SERC divides its service area into subregions aligned with utility and transmission operator groupings to facilitate reliability assessments, planning coordination, and performance analysis. The organization conducts risk-based, data-driven reliability assessments, performance analyses, situation awareness, and event analysis to identify and mitigate risks from extreme weather, cyber threats, and emerging technologies. It supports compliance monitoring, enforcement, registration, and certification programs to ensure adherence to reliability standards. Membership is voluntary and free for eligible entities, offering benefits such as participation in committees, access to technical documents, training, and collaboration opportunities. Educational resources are provided through SERC University, webinars, podcasts, newsletters, and a resource library covering topics like supply chain security and insider threat mitigation. SERC operates a voluntary assistance program offering confidential support to registered entities to improve reliability and security. | Government |
Ameren Illinois Co.
 Ameren Illinois Co. Gas DistributorsUtilities Distributes natural gas and electric power & generates electric power transmission | Utilities |
University of Illinois At Urbana–Champaign
 University of Illinois At Urbana–Champaign Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
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