Summary
Updated Aug 31, 2026
Maiken Keson-Brookes is Chief Legal Officer of Mural Oncology plc (MURA). 4 SEC Form 4 filings on record going back to 2024, most recently on 5 December 2025. Most recent open-market trade: sold $6K of MURA on 22 July 2025. Lifetime open-market sales: $20K.
Recent Transactions
4Every recent SEC Form 4 transaction Maiken Keson-Brookes has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Maiken Keson-Brookes go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. 1 recorded transaction carries a Rule 10b5-1 flag, meaning it was 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 Maiken Keson-Brookes 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.
- Adam D. Cutler - $15K of MURA open-market activity in the last 12 months
- Vicki L. Goodman - $10K of MURA 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 Maiken Keson-Brookes?
Maiken Keson-Brookes is a corporate insider, tracked as Chief Legal Officer of Mural Oncology plc (MURA). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Maiken Keson-Brookes last file a Form 4?
The most recent primary Form 4 on record is dated 5 December 2025, one of 4 filings going back to 2024.
Has Maiken Keson-Brookes been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($20K) across all tracked filings.
Where can I see all of Maiken Keson-Brookes'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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