Summary
Updated Aug 31, 2026
Catherine J. Mackey files SEC Form 4 reports at IDEAYA Biosciences, Inc. (IDYA). 3 SEC Form 4 filings on record going back to 2024, most recently on 18 June 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Catherine J. Mackey has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Catherine J. Mackey go back to 2024: 3 primary Form 4 filings, an average of 1.0 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 Catherine J. Mackey 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.
- Jeffrey Stein - $1.65M of IDYA open-market activity in the last 12 months
- Briseno Andres Ruiz - $382K of IDYA open-market activity in the last 12 months
- Alfred Sandrock - $184K of VYGR open-market activity in the last 12 months
- Robin Swartz - $55K of VYGR open-market activity in the last 12 months
- Nathan D. Jorgensen - $54K of VYGR open-market activity in the last 12 months
- Todd Alfred Carter - $41K of VYGR 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 Catherine J. Mackey?
Catherine J. Mackey is a corporate insider of IDEAYA Biosciences, Inc. (IDYA). InsiderAlpha holds 3 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 Catherine J. Mackey submitted recently?
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Where can I see all of Catherine J. Mackey'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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