Summary
Updated Aug 31, 2026
Mary Jo S. Herseth is Director of BYLINE BANCORP, INC. (BY). 2 SEC Form 4 filings on record, most recently on 20 August 2026. Most recent open-market trade: bought $12K of BY on 20 August 2026. Lifetime open-market purchases: $21K.
Recent Transactions
2Every recent SEC Form 4 transaction Mary Jo S. Herseth has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mary Jo S. Herseth go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $10K (2 buys totaling $21K). The largest single buy on record is $12K of BY 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 Mary Jo S. Herseth 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.
- Valle Perochena Antonio del - $11.73M of BY open-market activity in the last 12 months
- MBG INVESTORS I, L.P. - $11.73M of BY open-market activity in the last 12 months
- Roberto R. Herencia - $774K of BY open-market activity in the last 12 months
- Thomas Abraham - $629K of BY open-market activity in the last 12 months
- Dana Rose - $152K of BY open-market activity in the last 12 months
- John Barkidjija - $146K of BY 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 Mary Jo S. Herseth?
Mary Jo S. Herseth is a corporate insider, tracked as Director of BYLINE BANCORP, INC. (BY). 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 Mary Jo S. Herseth submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Mary Jo S. Herseth been buying or selling stock?
Recorded transactions: 2 open-market purchases ($21K) and 0 open-market sales across all tracked filings.
Where can I see all of Mary Jo S. Herseth'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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