Summary
Updated Aug 30, 2026
William R. Thomas III is Director of CAPITAL SOUTHWEST CORP (CSWC). 3 SEC Form 4 filings on record going back to 2025, most recently on 12 August 2026. Most recent open-market trade: bought $117K of CSWC on 5 June 2026. Lifetime open-market purchases: $117K. Lifetime open-market sales: $109K.
Recent Transactions
4Every recent SEC Form 4 transaction William R. Thomas III has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William R. Thomas III files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Michael Scott Sarner - $59K of CSWC open-market activity in the last 12 months
- Christine Battist - $34K of CSWC open-market activity in the last 12 months
- Ramona Lynn Rogers-Windsor - $20K of CSWC open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William R. Thomas III?
William R. Thomas III is a corporate insider, tracked as Director of CAPITAL SOUTHWEST CORP (CSWC). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William R. Thomas III submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has William R. Thomas III been buying or selling stock?
Recorded transactions: 1 open-market purchase ($117K) and 1 open-market sale ($109K) across all tracked filings.
Where can I see all of William R. Thomas III's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Follow William R. Thomas III and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial
