Summary
Updated Aug 30, 2026
Mark Worthington is GENERAL COUNSEL and CCO of LeonaBio, Inc. (LONA). 4 SEC Form 4 filings on record going back to 2024, most recently on 13 April 2026. Most recent open-market trade: sold $7K of LONA on 6 March 2026. Lifetime open-market sales: $10K.
Recent Transactions
4Every recent SEC Form 4 transaction Mark Worthington has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Worthington 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 of LONA open-market activity in the last 12 months
- Martin Javier San - $9K of LONA open-market activity in the last 12 months
- Kevin Church - $7K of LONA open-market activity in the last 12 months
- Robert Renninger - $5K of LONA 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 Mark Worthington?
Mark Worthington is a corporate insider, tracked as GENERAL COUNSEL and CCO of LeonaBio, Inc. (LONA). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark Worthington last file a Form 4?
The most recent primary Form 4 on record is dated 13 April 2026, one of 4 filings going back to 2024.
Has Mark Worthington been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($10K) across all tracked filings.
Where can I see all of Mark Worthington'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.
Learn More
Follow Mark Worthington and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial
