Summary
Updated Aug 31, 2026
Mark Howard Snyder is SVP, CHIEF LEGAL OFFICER of HALOZYME THERAPEUTICS, INC. (HALO). 5 SEC Form 4 filings on record going back to 2025, most recently on 15 June 2026.
Recent Transactions
12Every recent SEC Form 4 transaction Mark Howard Snyder has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark Howard Snyder go back to 2025: 5 primary Form 4 filings, an average of 2.5 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Howard Snyder 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.
- Helen Torley - $37.86M of HALO open-market activity in the last 12 months
- Cortney Caudill - $1.96M of HALO open-market activity in the last 12 months
- Nicole Labrosse - $1.69M of HALO open-market activity in the last 12 months
- Bernadette Connaughton - $1.14M of HALO open-market activity in the last 12 months
- Mahesh Krishnan - $548K of HALO 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 Howard Snyder?
Mark Howard Snyder is a corporate insider, tracked as SVP, CHIEF LEGAL OFFICER of HALOZYME THERAPEUTICS, INC. (HALO). InsiderAlpha holds 5 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 Mark Howard Snyder submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Mark Howard Snyder'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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