10 Olin finance leaders
Teresa Vermillion, Vice President, Treasurer & Chief Transformation Officer at Olin, is one of these Olin finance leaders, who hold controller, treasury, business finance, accounting and regional finance roles across the company's chemicals and Winchester businesses. A reader can learn how finance leaders work at Olin from people who have held the role.
Professionals to explore
Andrew Cooper
LinkedInExperience: Financial Director · Olin
Andrew Cooper has been Financial Director at Olin since April 2026, based in Houston, Texas, with a profile headline of SVP FP&A, Corporate Strategy, Data Science. Andrew Cooper was Senior Vice President Finance at Amerapex from 2025 to 2026 and Senior Director FP&A at Sunnova Energy from 2024 to 2025.
Carl Monticone CPA, CGMA
LinkedInExperience: Vice President, Finance – Chlor Alkali Products & Vinyls · Olin
Carl Monticone has been Vice President, Finance – Chlor Alkali Products & Vinyls at Olin since January 2023, based in Greater St. Louis. Carl Monticone was Vice President, Finance - Epoxy & International at Olin from 2020 to 2023, Assistant Treasurer and Vice President, Financial Shared Services there in 2020 and Regional Finance Director - EMEAI from 2018 to 2020.
Dave Keune, CPA
LinkedInExperience: Vice President, Finance – Epoxy & International · Olin
Dave Keune has been Vice President, Finance – Epoxy & International at Olin since January 2023, based in the United States. Dave Keune was EMEAI Finance Director at Olin from 2020 to 2023, Division Controller - Epoxy and International there from 2017 to 2020 and Director of Corporate Accounting and Financial Reporting from 2011 to 2017.
David Kellar
LinkedInExperience: Vice President Finance · Olin Corporation - Winchester
David Kellar has been Vice President Finance at Olin Corporation - Winchester since March 2019, based in St. Louis, Missouri. David Kellar was Controller at Olin Corporation - Winchester from 2016 to 2019 and Sr. Director, Finance & Accounting & Shared Services - US/Canada and International at Sigma-Aldrich from 2012 to 2016.
Francois Szots
LinkedInExperience: Olin Chemicals - NA Sr Director/Controller · Olin
Francois Szots has been Olin Chemicals - NA Sr Director/Controller at Olin since January 2021, based in the Greater Chicago Area. Francois Szots also held the title Division Financial Officer - Olin Global Epoxy from 2016 to 2021, and was Division Financial Officer - KA Steel Chemicals, Distribution Division of Olin Corporation at Olin from 2013 to 2016 and Accounting Director - Olin Canada ULC from 2007 to 2013.
Greg Wilson
LinkedInExperience: Finance Director, Business Strategy · Olin
Greg Wilson has been Finance Director, Business Strategy at Olin since August 2020, based in St. Louis, Missouri. Greg Wilson was Vice President, Epoxy & International Finance at Olin Corporation from 2015 to 2020 and Controller / Vice President, Finance - Winchester Division at Olin from 2006 to 2015.
Mike Mann
LinkedInExperience: Director Corporate Accounting and Financial Reporting · Olin
Mike Mann has been Director Corporate Accounting and Financial Reporting at Olin since March 2020, based in St. Louis, Missouri. Mike Mann was Senior Manager, External Reporting at Olin Corporation from 2015 to 2020, Senior Accounting Manager at Perficient from 2013 to 2015 and Audit Manager at Deloitte from 2007 to 2013.
Nicki Sumner
LinkedInExperience: Vice President and Controller · Olin
Nicki Sumner has been Vice President and Controller at Olin since May 2014, based in St. Louis, Missouri, and also lists Assistant Controller at Olin since 2006. Nicki Sumner also held the title Financial Officer, Chemical Distribution at Olin from 2012 to 2014 and worked in Corporate Accounting at Smurfit Stone Container from 1999 to 2006.
Rosanne Richter
LinkedInExperience: Director, Chemicals Revenue and Accounts Receivable · Olin
Rosanne Richter has been Director, Chemicals Revenue and Accounts Receivable at Olin since June 2022, based in Greater St. Louis. Rosanne Richter was Division Controller- Epoxy and International at Olin from 2020 to 2022 and Director, Financial Shared Services Chlor Alkali Products, Vinyls, Epoxy and International there from 2016 to 2020.
Teresa Vermillion
LinkedInExperience: Vice President, Treasurer & Chief Transformation Officer · Olin
Teresa Vermillion has been Vice President, Treasurer & Chief Transformation Officer at Olin since February 2025, based in St. Louis, Missouri. Teresa Vermillion was Vice President & Treasurer at Olin from 2018 to 2025, Vice President, Tax there from 2015 to 2018 and Director, Tax Planning & Financial Analysis from 2010 to 2015.
Choose the right perspective
Match the person's area, such as treasury, corporate accounting, a chemicals business unit, Winchester or regional finance, to the decision you face. Check whether the finance role is current or ended, and when, to judge how recent their view is.
Questions to take into the conversation
- 01What did you change first when you took on your current finance role, and why?
- 02How do you plan and forecast for the business you support in your current finance role?
- 03How have you built and developed the finance team that reports to you?
Reaching Olin finance leaders
How can I contact one of these Olin finance leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 2 companies: Olin and Olin Corporation - Winchester, based on profile data retrieved on October 24, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach Olin finance leaders?
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Can an AI agent ask one of these Olin finance leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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