Summary
Updated Aug 30, 2026
Lourie S. Zak is Chief Financial Officer of GENELUX Corp (GNLX). 2 SEC Form 4 filings on record, most recently on 20 December 2024. Most recent open-market trade: sold $5K of GNLX on 18 December 2024. Lifetime open-market sales: $5K.
Recent Transactions
2Every recent SEC Form 4 transaction Lourie S. Zak has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Lourie S. Zak go back to 2024: 2 primary Form 4 filings, an average of 0.7 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 Lourie S. Zak 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.
- John Thomas - $109K of GNLX open-market activity in the last 12 months
- Thomas Zindrick - $92K of GNLX open-market activity in the last 12 months
- John W. Smither - $35K of GNLX open-market activity in the last 12 months
- Yong Yu - $22K of GNLX open-market activity in the last 12 months
- Joseph Cappello - $20K of GNLX open-market activity in the last 12 months
- Ralph Smalling - $12K of GNLX 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 Lourie S. Zak?
Lourie S. Zak is a corporate insider, tracked as Chief Financial Officer of GENELUX Corp (GNLX). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Lourie S. Zak last file a Form 4?
The most recent primary Form 4 on record is dated 20 December 2024, one of 2 filings going back to 2024.
Has Lourie S. Zak been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($5K) across all tracked filings.
Where can I see all of Lourie S. Zak'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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