Summary
Latest filing:
Leonard Osser is 10% Owner of Nexalin Technology, Inc. (NXL). 2 SEC Form 4 filings on record going back to 2024, most recently on 29 September 2025. Most recent open-market trade: sold $100K of MLSS on 23 October 2024. Lifetime open-market sales: $100K.
Recent Transactions
2Every recent SEC Form 4 transaction Leonard Osser has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Leonard Osser 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.
- S.R.L. Bp4 - $168K of MLSS 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 Leonard Osser?
Leonard Osser is a corporate insider, tracked as 10% Owner of Nexalin Technology, Inc. (NXL). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Leonard Osser last file a Form 4?
The most recent primary Form 4 on record is dated 29 September 2025, one of 2 filings going back to 2024.
Has Leonard Osser been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($100K) across all tracked filings.
Where can I see all of Leonard Osser'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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