William R.  Thomas, III net worth and biography

William Thomas, III Biography and Net Worth

Director of Capital Southwest

William R. Thomas is an independent board director and private equity investor with 20 years of corporate governance and investment management experience. Mr. Thomas has served as a director of Capital Southwest since 2014. He previously served as a director of Encore Wire Corporation (Nasdaq: WIRE) from 2007 through its $4.2 billion acquisition by Prysmian Group in 2024. Mr. Thomas has served on the boards of two publicly traded companies, eleven private companies, and four nonprofits.

Mr. Thomas served at Capital Southwest from 2006 to 2012, advancing from Investment Associate to Vice President. He made, enhanced, and monetized investments, served on multiple portfolio company boards, and oversaw valuation and regulatory compliance. From 2004 to 2006, he earned his M.B.A. from Harvard Business School, consulting for private equity clients at Investor Group Services. From 1993 through 2004, he served in the U.S. Air Force as a pilot of multiple aircraft and a leader in areas of training, safety, acquisitions, logistics, and combat operations, achieving the rank of Major.

Mr. Thomas founded and leads a national angel investment network and has served as Chairman and CEO of Marketplace Chaplains, a national chaplaincy organization serving over 1,000 companies. He has been recognized as a National Association of Corporate Directors (NACD) Board Leadership Fellow and graduated from the United States Air Force Academy.

Capital Southwest benefits from Mr. Thomas' deep understanding of the Company's investment strategy and operations, his extensive board governance experience, his private equity expertise, and his perspective as a significant shareholder.

What is William R. Thomas, III's net worth?

The estimated net worth of William R. Thomas, III is at least $537.70 thousand as of October 1st, 2026. Mr. Thomas, III owns 22,842 shares of Capital Southwest stock worth more than $537,701 as of October 11th. This net worth evaluation does not reflect any other investments that Mr. Thomas, III may own. Learn More about William R. Thomas, III's net worth.

How do I contact William R. Thomas, III?

The corporate mailing address for Mr. Thomas, III and other Capital Southwest executives is 8333 Douglas Ave, Suite 1100, Dallas, TX, 75225. Capital Southwest can also be reached via phone at (214) 238-5700 and via email at [email protected]. Learn More on William R. Thomas, III's contact information.

Has William R. Thomas, III been buying or selling shares of Capital Southwest?

During the last quarter, William R. Thomas, III has bought $49,996.80 in shares of Capital Southwest stock. Most recently, on Thursday, October 1st, William R. Thomas, III bought 2,170 shares of Capital Southwest stock. The stock was acquired at an average cost of $23.04 per share, with a total value of $49,996.80. Following the completion of the transaction, the director now directly owns 22,842 shares of the company's stock, valued at $526,279.68. Learn More on William R. Thomas, III's trading history.

Who are Capital Southwest's active insiders?

Capital Southwest's insider roster includes Christine Battist (Director), Thomas Morgan (Director), Ramona Rogers-Windsor (Director), Michael Sarner (CFO), and William Thomas, III (Director). Learn More on Capital Southwest's active insiders.

Are insiders buying or selling shares of Capital Southwest?

In the last twelve months, Capital Southwest insiders bought shares 2 times. They purchased a total of 2,381 shares worth more than $54,997.50. The most recent insider tranaction occured on October, 1st when Director William R. Thomas, III bought 2,170 shares worth more than $49,996.80. Insiders at Capital Southwest own 2.7% of the company. Learn More about insider trades at Capital Southwest.

Information on this page was last updated on 10/1/2026.

William R. Thomas, III Insider Trading History at Capital Southwest

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
10/1/2026Buy2,170$23.04$49,996.8022,842View SEC Filing Icon  
9/9/2021Buy4,000$27.72$110,880.006,759View SEC Filing Icon  
1/27/2015Sell120,000$43.04$5,164,800.00View SEC Filing Icon  
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William R. Thomas, III Buying and Selling Activity at Capital Southwest

This chart shows William R. Thomas, III's buying and selling at Capital Southwest by year and by quarter.

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Capital Southwest Company Overview

Capital Southwest logo
Capital Southwest Corporation is a business development company specializing in credit and private equity and venture capital investments in middle market companies, mezzanine, later stage, mature, late venture, emerging growth, buyouts, industry consolidation, recapitalizations and growth capital investments. It does not invest in startups, publicly traded companies, real estate developments, project finance opportunities, oil and gas exploration businesses, troubled companies, turnarounds, and companies in which significant senior management is departing. In lower middle market, the firm typically invests in growth financing, bolt-on acquisitions, new platform acquisitions, refinancing, dividend recapitalizations, sponsor-led buyouts, and management buyouts situations. The investment structures are Unitranche debt, subordinated debt, senior debt, first and second lien debt, and preferred and common equity. The firm makes equity co-investments alongside debt investments, up to 20% of total check and only makes non-control investments. The firm is Industry agnostic, but it prefers to invest in Industrial manufacturing and services, value-added distribution, healthcare products and services, business services, specialty chemicals, food and beverage, tech-enabled services and SaaS models. The firm seeks to invest in energy services and products, industrial technologies, and specialty chemicals and products. Within energy services and products, the firm seeks to invest in each segment of the industry, including upstream, midstream and downstream, excluding exploration and production with a focus on differentiated products and services, equipment and tool rental, consumable products, and drilling and completion chemicals. Within industrial technologies, it seeks to invest in automation and process controls, handling and packaging equipment, industrial filtration and fluid handling, measurement, monitoring and testing, professional tools, and sensors and instrumentation. Within and specialty chemicals and products, the firm seeks to invest in businesses that develop and manufacture highly differentiated chemicals and products including adhesives, coatings and sealants, catalysts and absorbents, cosmeceuticals, fine chemicals, flavors and fragrances, performance lubricants, polymers, plastics and composites, chemical dispensing and filtration equipment, professional and industrial trade consumables and tools, engineered solutions for HVAC, plumbing, and electrical installations, specified high performance materials for fire protection and oilfield applications. It may also invest in exceptional opportunities in building products. The firm seeks to invest in the United States and North America. The firm seeks to make investments ranging from $5 million and $25 million in securities. It leads $5 to $70 million financings, Its Target holds of $5 million and $45 million, and the firm is willing to backstop up to $55mm with an active network of co-investors. It seeks to invest in the firm with minimum EBITDA is $3 million and $25 million. In addition to making direct investments, the firm allocates capital to syndicated first and second lien term loans in the upper middle market. Criteria for Upper Middle Market Syndicated 1st Lien is EBITDA Size more than $30 million, Closing Leverage greater than 4 times, investment hold size between $5 million and $7 million up to $15mm with senior loan fund, investment yield greater than 6.5%. Criteria for Upper Middle Market Syndicated 2nd Lien is EBITDA Size more than $50 million, Closing Leverage greater than 6 times, investment hold size between $5 million and $7 million, investment yield greater than 9%. It prefers to take a majority and minority stake. The firm has the flexibility to hold investments for very long period in its portfolio companies. It may also invest through warrants. The firm prefers to take Board participation in its portfolio companies. Capital Southwest Corporation was founded on April 19, 1961 and is based in Dallas, Texas.
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Today's Range

Now: $23.54
Low: $23.51
High: $23.85

50 Day Range

MA: $24.27
Low: $22.99
High: $25.57

2 Week Range

Now: $23.54
Low: $19.37
High: $25.75

Volume

420,613 shs

Average Volume

571,258 shs

Market Capitalization

$1.50 billion

P/E Ratio

13.01

Dividend Yield

9.86%

Beta

0.71