Summary
Updated Aug 31, 2026
Joseph B. Anderson Jr. files SEC Form 4 reports at GENTEX CORP (GNTX). 2 SEC Form 4 filings on record going back to 2025, most recently on 15 May 2026. Most recent open-market trade: sold $136K of GNTX on 15 May 2026. Lifetime open-market sales: $223K.
Recent Transactions
3Every recent SEC Form 4 transaction Joseph B. Anderson Jr. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Joseph B. Anderson Jr. go back to 2025: 2 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 Joseph B. Anderson Jr. 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.
- Steven R. Downing - $866K of GNTX open-market activity in the last 12 months
- Matthew Chiodo - $496K of GNTX open-market activity in the last 12 months
- Kevin C. Nash - $297K of GNTX open-market activity in the last 12 months
- Neil Boehm - $279K of GNTX open-market activity in the last 12 months
- Leslie L. Brown - $246K of GNTX open-market activity in the last 12 months
- Scott P. Ryan - $223K of GNTX 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 Joseph B. Anderson Jr.?
Joseph B. Anderson Jr. is a corporate insider of GENTEX CORP (GNTX). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Joseph B. Anderson Jr. last file a Form 4?
The most recent primary Form 4 on record is dated 15 May 2026, one of 2 filings going back to 2025.
Has Joseph B. Anderson Jr. been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($223K) across all tracked filings.
Where can I see all of Joseph B. Anderson Jr.'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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