Board of Directors

Managing Partner,
Roble Drive Investment Company

Independent Director since 2001

Chairman of the Board since 2019

Committees:

• Executive
• Compensation
• Former Chairman of the Corporate Governance and Nominating Committee

Experience

• Managing Director, Roble Drive Investment Company, a private investment firm he founded in 2020 (2020-present)
• Vice Chairman and Chief Executive Officer, Highlander Partners L.P. (2017-2019)
• President, Highlander Partners, L.P. (2004-2016)
• Managing Director, Stephens, Inc. (2002-2004)
• Partner, Olivhan Investments, L.P. (2001-2002)
• Managing Director, Investment Banking Division, Donaldson, Lufkin & Jenrette Securities Corporation (1986-2000)

Qualifications and Expertise Provided to Our Board

• Deep knowledge of capital markets, financial analysis and financial oversight experience gained through his work as an investment banker and investment manager
• Extensive experience as a director of portfolio companies, including with respect to financial, operational and executive compensation matters
• Extensive mergers and acquisitions experience gained through numerous acquisitions, investments and divestitures

Other Boards

• Hi-Tech Systems, LLC (2022-present)
• University of Puget Sound, Trustee (2018-2020)
• Bevolution Corp (2016-2019)
• Twitchell Corp. (2016-2019)
• FDL Ltd. (2017-2019)
• Biamp, Inc. (2017-2019)

Education and Certifications

• B.A., Economics, Wake Forest University
• M.B.A., The Wharton School, University of Pennsylvania

Director, President and Chief Executive Officer,
Eagle Materials Inc.

Director since 2019

Committees:

• Executive

Experience

• President and Chief Executive Officer, Eagle Materials Inc. (2019-present)
• President and Chief Operating Officer, Eagle Materials Inc. (2018-2019)
• Executive Vice President and Chief Operating Officer, Eagle Materials Inc. (2014-2018)
• Global Operations Manager, Sperry Drilling, Halliburton Energy Services (2014)
• Principal Global Strategic Business Manager, Sperry Drilling, Halliburton Energy Services (2013-2014)
• Senior Northern Region Manager, Sperry Drilling, Halliburton Energy Services (2010-2013)
• Senior Country Manager (Norway), Sperry Drilling, Halliburton Energy Services (2008-2010)

Qualifications and Expertise Provided to Our Board

• Extensive knowledge of the Company’s operations
• Executive, operational, supply chain and strategic planning experience gained in manufacturing and heavy industry over the past 20 years
• Mergers and acquisitions experience, including divestitures and integration of acquired businesses
• Deep engineering and environmental experience gained in heavy industry
• Extensive international experience living and managing operations in foreign countries and managing remote operations globally for Halliburton, bringing a global view to decision-making and strategy
• Extensive experience managing large operations – $3.6 billion in revenue, 8,000+ personnel with extensive network of facilities globally
• Deep commitment and experience with establishing safety cultures, processes and procedures to enable operations to run more safely with reduced impact on the environment

Other Boards

• Concrete Advancement Foundation Trustee (2025-present)
• Member of the Texas A&M University Industrial Engineering Advisory Council (2002-present)

Education and Certifications

• B.S., Industrial Engineering, Purdue University
• B.S., Industrial Engineering, Texas A&M University
• M.B.A., Rice University

Retired Co-Chief Executive Officer and Co-President,
Lennar Corporation

Independent Director since 2014

Committees:

• Corporate Governance, Nominating and Sustainability (Chair)
• Former Member of the Audit Committee

Experience

• Co-Chief Executive Officer and Co-President, Lennar Corporation (2020-2023)
• Chief Executive Officer, Lennar Corporation (2018-2020)
• President, Lennar Corporation (2011-2018)
• Executive Vice President, Lennar Corporation (2006-2011)
• Owner and Principal, EVP Capital, L.P., a venture capital and real estate advisory company (2000-2003)
• Executive officer roles, including President, D.R. Horton (1993-2000)
• Mergers and Acquisitions and Corporate Finance Departments, Lehman Brothers (1986-1993)

Qualifications and Expertise Provided to Our Board

• Deep knowledge of the homebuilding and real estate industries gained through executive roles leading, managing, operating and growing the two largest homebuilding companies in the United States
• Extensive executive, leadership and operational experience, including as the Chief Executive Officer and as a director, providing broad insight into the dynamics of a corporate board,
• strategic planning, risk oversight, human capital, executive development, succession planning and compensation matters, and environmental, social, regulatory and governance issues
• M&A, corporate finance and business development experience gained through numerous acquisitions undertaken by Lennar and D.R. Horton and through his experience as an investment banker

Other Boards

• Weyerhaeuser Company  (NYSE: WY) - (2025-present)
• Ferguson Enterprises Inc (NYSE: FERG) - (2024-present)
• Lennar Corporation (NYSE: LEN) – Director (2018-2023)
• Five Point Holdings (NYSE: FPH) – Director (2016-2020)
• D.R. Horton (NYSE: DHI) – Director (1993-2003)

Education and Certifications

• B.A., Psychology, Claremont McKenna College

President and Founder,
Living Mountain Capital L.L.C.

Independent Director since 2017

Committees:

• Compensation (Chair)
• Corporate Governance, Nominating and Sustainability
• Former Member of the Audit Committee

Experience

• President, Living Mountain Capital L.L.C., a business advisory consulting firm she founded in 1998. She advises and invests in companies, including Cien.ai, a cloud-based digital AI sales intelligence business, which she co-founded in 2016
• Executive Vice President, Chief Legal Officer and Secretary, RealPage, Inc. (Nasdaq: RP), a leading global software and data analytics company for the real estate industry (2010-2015)
• Executive Vice President and General Counsel, The Princeton Review, Inc. (Nasdaq: TPR) (2004-2007)
• Executive Vice President, General Counsel and Executive Managing Director, Soundview Technology Group, Inc. (Nasdaq: SNDV) (2003-2004)
• Assistant General Counsel, Cantor Fitzgerald and eSpeed, Inc. (Nasdaq: ESPD) (2001-2003)
• Executive Vice President, General Counsel and Secretary, SourceHOV (Nasdaq: FYII) (1996-2000)
• Corporate Finance Attorney, Morgan Lewis & Bockius (1991-1996)

Qualifications and Expertise Provided to Our Board

• Proven executive and leadership experience, including as a C-suite executive and director of public companies, providing broad insight into the dynamics of a corporate board, strategic planning, risk oversight and human capital, executive compensation and environmental, social and governance issues
• Deep M&A and business development experience gained through multiple acquisitions throughout her career, including while at RealPage (which she took public) and through the sale of businesses (The Princeton Review’s sale to Bain Capital Ventures and Soundview Technology Group’s sale to The Charles Schwab Corporation)
• Industry knowledge gained through service as presiding independent director of Installed Building Products and as a director of Interior Logic Group through its sale to Blackstone
• Rigorous financial discipline as a member of our Audit Committee from 2017-2019 and as a member of IBP’s audit committee
• Extensive experience guiding technology companies

Other Boards

• Tyler Technologies, Inc. (NYSE:TYL) (2024-present)
• Installed Building Products, Inc. (NYSE:IBP) – Presiding Independent Director, Chair of Nominating and Governance Committee and member of the Audit Committee (2014-present)
• North Texas Chapter of National Association of Corporate Directors, Chair Emeritus; Chair (2022-2023)
• Interior Logic Group Holdings, Inc. (2017-2021)

Education and Certifications

• B.A., Economics and History, Binghamton University
• J.D., Fordham University School of Law
• NACD Directorship Certified (NACD.DC)

Retired President and Chief Executive Officer,
HollyFrontier Corporation
Holly Energy Partners, L.P.

Director since 2016

Committees:

• Compensation 

Experience

• President and Chief Executive Officer, HollyFrontier Corporation and Holly Energy Partners, L.P. (2016-2019)
• Executive Vice President and Chief Operating Officer, HollyFrontier Corporation (2014-2016)
• Senior Vice President, Supply and Marketing, HollyFrontier Corporation (2008-2014)
• Vice President, Corporate Development, HollyFrontier Corporation (2007-2008)
• President, INVISTA Intermediates, Koch Industries, Inc. (2004-2007)
• Managing Director, Koch Capital Markets, Koch Industries, Inc. (2001-2004)
• Vice President, Koch Refining Company, Koch Industries, Inc. (1997-2001)
• Vice President, Koch Chemical, Koch Industries, Inc. (1994-1997)
• President, Koch Gas Services, Koch Industries, Inc. (1991-1994)
• Manager – Commercial Development, Koch Petroleum Group, Koch Industries, Inc. (1989-1991)

Qualifications and Expertise Provided to Our Board

• Deep business leadership experience, including commercial and operational oversight of a regulated heavy industrial business
• Extensive public company leadership experience, including strategic planning, capital allocation, compensation programs, succession planning, governance, investor and other stakeholder relations
• Proven business development experience identifying, evaluating, executing and integrating various mergers, acquisitions, divestitures and capital projects

Other Boards

• DNOW Inc. (NYSE: DNOW) (2025-present)
• MRC Global Inc. (NYSE: MRC) (2021-2025)
• HollyFrontier Corporation (NYSE: HFC) (2015-2019)
• Holly Energy Partners, L.P. (NYSE: HEP) (2016-2019)
• Petroleum Service Corporation (2021-present)

Education and Certifications

• B.S., Chemical Engineering, Case Western Reserve University
• M.B.A., Case Western Reserve University

Retired Chief Financial Officer and Executive Vice President,
Dr Pepper Snapple Group, Inc.

Independent Director since 2013

Committees:

• Audit (Chair)

Experience

• Chief Financial Officer and Executive Vice President, Dr Pepper Snapple Group, Inc. (NYSE: DPS) (2010-2018)
• Chief Financial Officer and Senior Vice President – Finance, Snap-on Inc. (NYSE: SNAP) (2002-2010)
• Vice President and Chief Financial Officer, Cabot Microelectronics Corporation (NTSE: CBT) (2001-2002)
• Senior Vice President and Chief Financial Officer, Whitman Corporation (NYSE: PAS) (1998-2001)
• Chief Financial Officer of two Caremark divisions (Home Healthcare and Physician Practice Management) (1992-1998)
• Chief Financial Officer, Sun Electric Corp. (1988-1992)
• Chief Financial Officer, D&K Financial Corp. (1984-1988)
• Senior Audit Manager, Price Waterhouse (1975-1984)

Qualifications and Expertise Provided to Our Board

• Rigorous accounting, tax, treasury, audit, information technology and business development experience and knowledge gained from over 30 years serving as chief financial officer with public and private companies and prior experience with a major public accounting firm
• As Chief Financial Officer, extensive executive, leadership and operational experience in strategic planning, risk oversight, executive compensation, lean and six sigma process improvement methodologies and environmental, social and governance issues
• Extensive M&A and business development experience gained through principal involvement in over $40 billion of acquisitions and divestitures internationally

Education and Certifications

• B.S., Accounting, University of Illinois Urbana-Champaign
• M.B.A., J.L. Kellogg Graduate School of Business, Northwestern University
• Certified Public Accountant
• Instructor, Business Leadership Center, Southern Methodist University, Cox School of Business

Retired President - Performance Materials and Coatings Division,
Dow Inc.

Independent Director since 2021

Committees:

• Audit
• Corporate Governance, Nominating and Sustainability

Experience

• President – Performance Materials and Coatings, Dow Inc. (2020-2024)
• Executive Oversight for Latin America, Dow Inc. (2019-2024)
• CEO – Dow Silicone Corporation f/k/a Dow Corning (2016-2024)
• President – Dow Consumer Solutions, Dow Inc. (2016-2020)
• President – Feedstocks and Energy Business, Dow Inc. (2012-2016)
• Commercial Vice President – EMEA and North America, Dow Inc. (2009-2012)

Qualifications and Expertise Provided to Our Board

• Executive leadership experience as an officer at a Fortune 100 Company (Dow) leading multi-billion-dollar global business divisions
• Extensive executive business management experience acquired through several leadership assignments that included supply chain, commercial, innovation and large M&A transactions
• Deep global business leadership experience, including through international assignments in Europe and Latin America and JV board service in Asia and the Middle East
• Breadth of business management experience from industrial commodity to specialty-oriented businesses, building inclusive growth-oriented teams
• Implementation of leading-edge sustainability projects addressing greenhouse gas emissions and energy transition

Other Boards

• Graham Corporation (NYSE: GHM) (2025-present)
• Mid-Michigan Health, Foundation Board (2020-present)
• Radius Recycling, Inc (NASDAQ: RDUS) (2024-2025)
• Chairman USA Delegation of USA-Brazil CEO Forum (2019-2024)
• United Way (Great Lakes, MI) (2016-2022)
• Northwood University (2017-2020)
• Several Dow JVs (Korea, Japan, Kuwait, Brazil, USA)

Education and Certifications

• B.S., Chemical Engineering, Escola de Engenharia Maua, Brazil
• M.B.A., Northwood University
• LCDA (Latino Corporate Directors Association) BoardReady Institute (BRI) program in board governance excellence
• No.1 Executive on the Yahoo Finance Empower Top 100 Ethnic Minority Senior Business Leader Role Models (2020) – Top 10 Awardee in 2021-2023

Retired Senior Vice President and Chief Accounting Officer,
Reliant Energy Inc.

Independent Director since 2020

Committees:

• Audit
• Corporate Governance, Nominating and Sustainability

Experience

• Senior Vice President and Chief Accounting Officer, Reliant Energy Inc. (1999-2002)
• Vice President and Comptroller, Reliant Energy Inc. (1996-1999)
• Comptroller (1993-1996)
• Assistant Treasurer and Assistant Corporate Secretary, Houston Lighting & Power Company (1991-1993)
• Manager, Financial Services, Houston Lighting & Power Company (1986-1990)

Qualifications and Expertise Provided to Our Board

• Rigorous accounting, corporate finance, tax and financial experience gained as an executive officer and board member of public and private entities
• Deep experience and knowledge acquired as an executive officer and board member, including with respect to strategic planning, corporate governance, strategic transactions, executive compensation, and environmental and social matters
• M&A and business development experience gained through large acquisitions and divestitures, both domestically and internationally

Other Boards

• ProPetro Holding Corp. (NYSE: PUMP) (2023-present)
• Devon Energy (NYSE: DVN) (2008-2021)
• Noble Corporation (NYSE: NE) (2003-2020)
• EnLink Midstream (NYSE: ENLC) (2014-2018)
• Midstates Petroleum (NYSE: MPO) (2010-2013)
• U.S. Concrete (Nasdaq: RMIX) (2003-2010)
• TriCities Chapter (Houston) of National Association of Corporate Directors, Board Leadership Fellow
• University of Saint Thomas (2012-2017), Executive Committee Member, Audit and Finance Committee Chairperson
• Galveston/Houston Catholic Endowment Foundation (2003-2012), Vice President and Assistant Treasurer, Executive Committee, Finance Committee

Education and Certifications

• B.A., University of South Dakota
• M.B.A. (Finance), University of Houston
• Licensed Certified Public Accountant
• CERT Certificate in Cybersecurity, Carnegie Mellon University (2017)

Retired President and Chief Executive Officer,

Builders FirstSource, Inc.

Independent Director since 2025

Committees:

• Audit
• Compensation

Experience

• President and Chief Executive Officer, Builders FirstSource, Inc. (NYSE: BLDR) (2023-2024)
• Interim Chief Executive Officer, Builders FirstSource, Inc. (2022-2023)
• Executive Vice President, Strategic Management Office, Builders FirstSource, Inc. (2022-2022)
• Executive Vice President, Integration Management Office, Builders FirstSource, Inc. (2021-2022)
• Senior Vice President and Regional Chief Operating Officer, East, Builders FirstSource, Inc. (2018-2021)
• Senior Vice President, Strategy and Business Development, Builders FirstSource, Inc. (2017-2018)
• Senior Vice President, Integration, Builders FirstSource, Inc. (2015-2017)
• Area Vice President, South Carolina, North Carolina and Tennessee, Builders FirstSource, Inc. (2003-2015)
• Vice President, Finance, Builders FirstSource, Inc. (1999-2003)
• Chief Financial Officer, Bojangles Inc. (1998-1999)

Qualifications and Expertise Provided to Our Board

• Previous President and CEO of publicly traded Fortune 500 company
• Current member of Board of Directors of Builders FirstSource
• Various senior management financial roles throughout his 40-year career

Other Boards

• Builders FirstSource, Inc. (NYSE: BLDR) (2022-present)

Education and Certifications

• B.A., Accounting, University of North Carolina at Chapel Hill