Summary
Updated Aug 31, 2026
Donald G. Tyler is Director of EAGLE CAPITAL GROWTH FUND, INC. (GRF). 4 SEC Form 4 filings on record going back to 2025, most recently on 13 May 2026. Most recent open-market trade: bought $10K of GRF on 13 May 2026. Lifetime open-market purchases: $20K. Lifetime open-market sales: $59K.
Recent Transactions
8Every recent SEC Form 4 transaction Donald G. Tyler has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Donald G. Tyler go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $10K (2 buys totaling $20K). The largest single buy on record is $10K of GRF in 2026. Sales side: 4 recorded sales totaling $59K, so the filing history runs sell-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 Donald G. Tyler 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.
- David C. Sims - $204K of GRF open-market activity in the last 12 months
- Neal F. Zalenko - $79K of GRF open-market activity in the last 12 months
- Luke E. Sims - $34K of GRF 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 Donald G. Tyler?
Donald G. Tyler is a corporate insider, tracked as Director of EAGLE CAPITAL GROWTH FUND, INC. (GRF). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Donald G. Tyler last file a Form 4?
The most recent primary Form 4 on record is dated 13 May 2026, one of 4 filings going back to 2025.
Has Donald G. Tyler been buying or selling stock?
Recorded transactions: 2 open-market purchases ($20K) and 4 open-market sales ($59K) across all tracked filings.
Where can I see all of Donald G. Tyler'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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