Barbara Kosacz

Filings by Barbara Kosacz span 3 companies, the busiest being Kronos Bio, Inc., XOMA Royalty Corp and Cero Therapeutics Holdings, Inc. The record holds 10 filings, for trades running from 14 October 2020 to 14 July 2026.

In open-market terms, that means 1 purchase worth €85k on one side and 1 sale worth €12k on the other. Taken together, the purchases exceed the sales by €73k. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Other entries cover 6 share grants.

Most recently, on 14 July 2026, the filings show a transaction in XOMA Royalty Corp. The last insider purchase was made public on 16 October 2020, 2,196 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.