Summary
Updated Aug 31, 2026
Timothy W. Byrne is President CEO, Director of UNITED STATES LIME MINERALS INC (USLM). 3 SEC Form 4 filings on record going back to 2024, most recently on 3 September 2025. Most recent open-market trade: sold $72K of USLM on 3 September 2025. Lifetime open-market sales: $10.99M.
Recent Transactions
11Every recent SEC Form 4 transaction Timothy W. Byrne has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Timothy W. Byrne go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Timothy W. Byrne 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.
- Sandra C. Duhe - $154K of USLM 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 Timothy W. Byrne?
Timothy W. Byrne is a corporate insider, tracked as President CEO, Director of UNITED STATES LIME MINERALS INC (USLM). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Timothy W. Byrne last file a Form 4?
The most recent primary Form 4 on record is dated 3 September 2025, one of 3 filings going back to 2024.
Has Timothy W. Byrne been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($10.99M) across all tracked filings.
Where can I see all of Timothy W. Byrne'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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