Summary
Updated Aug 31, 2026
Tyson Eliot Marshall is GENERAL COUNSEL & CORP. SEC. of Alphatec Holdings, Inc. (ATEC). 7 SEC Form 4 filings on record going back to 2025, most recently on 8 August 2026. Most recent open-market trade: sold $79K of ATEC on 8 August 2026. Lifetime open-market sales: $3.00M.
Recent Transactions
15Every recent SEC Form 4 transaction Tyson Eliot Marshall has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Tyson Eliot Marshall go back to 2025: 7 primary Form 4 filings, an average of 3.5 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 Tyson Eliot Marshall 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.
- Jennifer N. Pritzker - $15.65M of ATEC open-market activity in the last 12 months
- Squadron Capital Holdings LLC - $15.65M of ATEC open-market activity in the last 12 months
- Squadron Capital LLC - $10.36M of ATEC open-market activity in the last 12 months
- David R. Pelizzon - $10.36M of ATEC open-market activity in the last 12 months
- Patrick Miles - $10.22M of ATEC open-market activity in the last 12 months
- David Sponsel - $6.13M of ATEC 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 Tyson Eliot Marshall?
Tyson Eliot Marshall is a corporate insider, tracked as GENERAL COUNSEL & CORP. SEC. of Alphatec Holdings, Inc. (ATEC). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Tyson Eliot Marshall submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Tyson Eliot Marshall been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($3.00M) across all tracked filings.
Where can I see all of Tyson Eliot Marshall'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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