Summary
Updated Aug 30, 2026
Theron I. Gilliam files SEC Form 4 reports at GMS Inc. (GMS). 5 SEC Form 4 filings on record going back to 2025, most recently on 14 July 2026.
Recent Transactions
6Every recent SEC Form 4 transaction Theron I. Gilliam has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as Theron I. Gilliam. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Coliseum Capital Management, LLC - $37.27M of GMS open-market activity on record
- George T. Hendren - $1.05M of GMS open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Theron I. Gilliam?
Theron I. Gilliam is a corporate insider of GMS Inc. (GMS). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Theron I. Gilliam last file a Form 4?
The most recent primary Form 4 on record is dated 14 July 2026, one of 5 filings going back to 2025.
Where can I see all of Theron I. Gilliam'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.
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