BY insider trades & Congress trades
Byline Bancorp, Inc.: public insider filings and Congress disclosures, in one place.
Bourse has recorded 9 open-market insider transactions in Byline Bancorp, Inc. (BY) (3 purchases with code P and 6 sales with code S), the most recent on October 29, 2026.
In the last 90 days: 3 purchases by 3 insiders ($60K) and 4 sales by 3 ($1.50M).
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Oct 29, 2026 | Ptacin Brogan | HEAD OF COMMERCIAL BANKING | Sell | 14,229 | $38.90 | $554K | – |
| Oct 29, 2026 | Ptacin Brogan | HEAD OF COMMERCIAL BANKING | Sell | 1,871 | $39.05 | $73K | – |
| Oct 26, 2026 | Stewart Pamela C | – | Buy | 1,160 | $38.61 | $45K | – |
| Aug 19, 2026 | Herseth Mary Jo S. | – | Buy | 300 | $38.40 | $12K | −0.0% |
| Aug 19, 2026 | Kistner William G | – | Buy | 100 | $38.30 | $4K | −0.0% |
| Aug 13, 2026 | Herencia Roberto R | CHIEF EXECUTIVE OFFICER | Sell | 19,750 | $39.21 | $774K | −0.0% |
| Aug 12, 2026 | Rose Dana | CHIEF HUMAN RESOURCES OFFICER | Sell | 2,421 | $39.00 | $94K | −0.0% |
| Aug 7, 2026 | Del Valle Perochena Antonio | – | Sell | 300,000 | $39.10 | $11.7M | −0.0% |
| Aug 7, 2026 | Mbg Investors I, L.P. | – | Sell | 300,000 | $39.10 | $11.7M | −0.0% |
Data as of November 8, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
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