Summary
Updated Aug 31, 2026
Bieler Ilene Fiszel is Chief Financial Officer of MARKETAXESS HOLDINGS INC (MKTX). 3 SEC Form 4 filings on record going back to 2025, most recently on 3 June 2026.
Recent Transactions
4Every recent SEC Form 4 transaction Bieler Ilene Fiszel 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 Bieler Ilene Fiszel 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.
- Stephen P. Casper - $299K of MKTX open-market activity in the last 12 months
- Kevin M. McPherson - $277K of MKTX open-market activity in the last 12 months
- Scott Pintoff - $142K of MKTX 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 Bieler Ilene Fiszel?
Bieler Ilene Fiszel is a corporate insider, tracked as Chief Financial Officer of MARKETAXESS HOLDINGS INC (MKTX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Bieler Ilene Fiszel submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Bieler Ilene Fiszel'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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