Summary
Updated Aug 30, 2026
Susan Ann Williamson has 4 SEC Form 4 filings on record going back to 2025, most recently on 23 July 2026.
Recent Transactions
3Every recent SEC Form 4 transaction Susan Ann Williamson has reported, most recent first.
- Keenova Therapeutics plcF - Tax withholding / forfeiture
571 shares @ --
- Keenova Therapeutics plcM - Option exercise
1.3K shares @ --
- Keenova Therapeutics plcA - Grant or award
726 shares @ --
Trading Pattern
InsiderAlpha's records for Susan Ann Williamson go back to 2025: 4 primary Form 4 filings, an average of 2.0 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.
Most Active Insiders Right Now
Susan Ann Williamson has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Robert M. Williams Jr. - $268.34M of AVAH open-market activity in the last 90 days
- Paul R. Vigano - $268.34M of AVAH open-market activity in the last 90 days
- Henry Samueli - $250.01M of AVGO open-market activity in the last 90 days
- Mantle Ridge LP - $248.27M of DLTR open-market activity in the last 90 days
- ARES MANAGEMENT LLC - $235.75M of SVV open-market activity in the last 90 days
- J.H. Whitney Equity Partners VII, LLC - $232.77M of AVAH open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Susan Ann Williamson?
Susan Ann Williamson is a corporate insider, tracked as EVP & Chief Compliance Officer. InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Susan Ann Williamson last file a Form 4?
The most recent primary Form 4 on record is dated 23 July 2026, one of 4 filings going back to 2025.
Where can I see all of Susan Ann Williamson'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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