Summary
Updated Aug 30, 2026
David Matthew Stark is Director of Assertio Holdings, Inc. (ASRT). 4 SEC Form 4 filings on record going back to 2024, most recently on 16 June 2026. Most recent open-market trade: sold $7K of ASRT on 12 November 2025. Lifetime open-market sales: $7K.
Recent Transactions
4Every recent SEC Form 4 transaction David Matthew Stark has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as David Matthew Stark. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Heather L. Mason - $60K of ASRT open-market activity on record
- Brendan P. O'Grady - $10K of ASRT 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 David Matthew Stark?
David Matthew Stark is a corporate insider, tracked as Director of Assertio Holdings, Inc. (ASRT). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David Matthew Stark submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has David Matthew Stark been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($7K) across all tracked filings.
Where can I see all of David Matthew Stark'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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