Summary
Updated Aug 31, 2026
Mark Matson is President and COO, 10% Owner of SOLITRON DEVICES INC (SODI). 3 SEC Form 4 filings on record going back to 2025, most recently on 12 March 2026.
Recent Transactions
3Every recent SEC Form 4 transaction Mark Matson has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark Matson go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. 2 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Matson 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.
- Olesen Value Fund L.P. - $2.21M of SODI open-market activity in the last 12 months
- Howard Timothy Eriksen - $265K of SODI open-market activity in the last 12 months
- John F. Chiste - $228K of SODI 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 Mark Matson?
Mark Matson is a corporate insider, tracked as President and COO, 10% Owner of SOLITRON DEVICES INC (SODI). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Mark Matson last file a Form 4?
The most recent primary Form 4 on record is dated 12 March 2026, one of 3 filings going back to 2025.
Where can I see all of Mark Matson'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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