Summary
Updated Aug 31, 2026
Thomas Sandgaard is PRESIDENT, CEO AND CHAIRMAN of ZYNEX INC (ZYXI). 5 SEC Form 4 filings on record, most recently on 18 November 2024. Most recent open-market trade: sold $16K of ZYXI on 18 November 2024. Lifetime open-market sales: $209K.
Recent Transactions
13Every recent SEC Form 4 transaction Thomas Sandgaard has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Thomas Sandgaard go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. 12 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 have reported open-market trades at the same companies as Thomas Sandgaard. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Daniel J. Moorhead - $167K of ZYXI open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Thomas Sandgaard?
Thomas Sandgaard is a corporate insider, tracked as PRESIDENT, CEO AND CHAIRMAN of ZYNEX INC (ZYXI). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Thomas Sandgaard last file a Form 4?
The most recent primary Form 4 on record is dated 18 November 2024, one of 5 filings going back to 2024.
Has Thomas Sandgaard been buying or selling stock?
Recorded transactions: 0 open-market purchases and 12 open-market sales ($209K) across all tracked filings.
Where can I see all of Thomas Sandgaard'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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