Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Barbara Kosacz 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.
- Mark James Litton - $28K in LONA purchases and sales in the last 12 months
- Martin Javier San - $9K in LONA purchases and sales in the last 12 months
- Kevin Church - $7K in LONA purchases and sales in the last 12 months
- Mark Worthington - $7K in LONA purchases and sales in the last 12 months
- Robert Renninger - $5K in LONA purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Barbara Kosacz?
Barbara Kosacz is a corporate insider of XOMA Royalty Corp (XOMA). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Barbara Kosacz last file a Form 4?
The most recent primary Form 4 on record is dated 15 July 2026, one of 4 filings going back to 2026.
