Summary
Updated Aug 30, 2026
Mark S. Jonaitis is SVP and GM, X-Ray Sources of Varex Imaging Corp (VREX). 2 SEC Form 4 filings on record, most recently on 18 December 2024.
Recent Transactions
2Every recent SEC Form 4 transaction Mark S. Jonaitis has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark S. Jonaitis go back to 2024: 2 primary Form 4 filings, an average of 0.7 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark S. Jonaitis 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.
- Jay K. Kunkel - $50K of VREX open-market activity in the last 12 months
- Karen L. Aranki - $39K of VREX 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 S. Jonaitis?
Mark S. Jonaitis is a corporate insider, tracked as SVP and GM, X-Ray Sources of Varex Imaging Corp (VREX). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark S. Jonaitis last file a Form 4?
The most recent primary Form 4 on record is dated 18 December 2024, one of 2 filings going back to 2024.
Where can I see all of Mark S. Jonaitis'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 S. Jonaitis 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