Summary
Updated Aug 31, 2026
Thomas T. Dierdorff is EVP, Corp. Inv. Banking of SYNOVUS FINANCIAL CORP (SNV). 3 SEC Form 4 filings on record going back to 2024, most recently on 29 August 2025. Most recent open-market trade: bought $313K of SNV on 29 August 2025. Lifetime open-market purchases: $403K. Lifetime open-market sales: $403K.
Recent Transactions
5Every recent SEC Form 4 transaction Thomas T. Dierdorff has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Thomas T. Dierdorff go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. The typical open-market purchase is $202K (2 buys totaling $403K). The largest single buy on record is $313K of SNV in 2025. Sales side: 2 recorded sales totaling $403K, so the filing history runs buy-heavy by dollar value. 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 Thomas T. Dierdorff 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.
- Gregory G. Montana - $45K of SNV 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 Thomas T. Dierdorff?
Thomas T. Dierdorff is a corporate insider, tracked as EVP, Corp. Inv. Banking of SYNOVUS FINANCIAL CORP (SNV). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Thomas T. Dierdorff last file a Form 4?
The most recent primary Form 4 on record is dated 29 August 2025, one of 3 filings going back to 2024.
Has Thomas T. Dierdorff been buying or selling stock?
Recorded transactions: 2 open-market purchases ($403K) and 2 open-market sales ($403K) across all tracked filings.
Where can I see all of Thomas T. Dierdorff'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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