Summary
Updated Aug 31, 2026
Matthew Fitzsimmons Whitlock is Chief Investment Officer of Chiron Real Estate Inc. (XRN). 2 SEC Form 4 filings on record, most recently on 17 August 2026. Most recent open-market trade: bought $18K of XRN on 17 August 2026. Lifetime open-market purchases: $37K.
Recent Transactions
2Every recent SEC Form 4 transaction Matthew Fitzsimmons Whitlock has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Matthew Fitzsimmons Whitlock go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $18K (2 buys totaling $37K). The largest single buy on record is $19K of XRN in 2026. 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 Matthew Fitzsimmons Whitlock 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.
- Charles Fitzgerald - $1.49M of XRN open-market activity in the last 12 months
- Mark Okey Decker Jr. - $1.05M of XRN open-market activity in the last 12 months
- Aaron Robert Roseth - $496K of XRN open-market activity in the last 12 months
- Robert J. Kiernan - $196K of XRN open-market activity in the last 12 months
- Lori Wittman - $100K of XRN open-market activity in the last 12 months
- Ronald Marston - $51K of XRN 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 Matthew Fitzsimmons Whitlock?
Matthew Fitzsimmons Whitlock is a corporate insider, tracked as Chief Investment Officer of Chiron Real Estate Inc. (XRN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Matthew Fitzsimmons Whitlock submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Matthew Fitzsimmons Whitlock been buying or selling stock?
Recorded transactions: 2 open-market purchases ($37K) and 0 open-market sales across all tracked filings.
Where can I see all of Matthew Fitzsimmons Whitlock'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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