BY insider buying and SEC filings, explained
Byline Bancorp, Inc. · CIK 1702750
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$81K
Insiders who bought
3
Sold (not marked 10b5-1)
$25.1M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 29, 2026 | Sale | Brogan Ptacin (Head of Commercial Banking) sold 16,100 shares indirectly (by trust) at about $38.92 ($627K). Holdings by trust down 59% to 11,100 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 2, 2026, 2:52 PM ET |
| Oct 26, 2026 | Purchase (code P) | Pamela C Stewart (Director) bought 1,160 shares at $38.61 ($45K), reported as a purchase (code P). Holdings up 18% to 7,496 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 26, 2026, 5:10 PM ET |
| Aug 19, 2026 | Purchase (code P) | Mary Jo S. Herseth (Director) bought 300 shares indirectly (by trust) at $38.40 ($12K), reported as a purchase (code P). Holdings by trust up 2% to 19,100 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 20, 2026 |
| Aug 19, 2026 | Purchase (code P) | William G. Kistner (Director) bought 100 shares indirectly (by trust) at $38.30 ($4K), reported as a purchase (code P). Holdings by trust up 1% to 14,289 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 20, 2026 |
| Aug 13, 2026 | Sale | Roberto R. Herencia (CEO and Director) sold 19,750 shares at $39.21 ($774K). Holdings down 5% to 411,643 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 14, 2026 |
| Aug 12, 2026 | Sale | Dana Rose (Chief Human Resources Officer) sold 2,421 shares at $39.00 ($94K). Holdings down 17% to 11,605 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 12, 2026 |
| Aug 7, 2026 | Sale | MBG INVESTORS I, L.P. (10% owner) sold 300,000 shares at $39.10 ($11.7M). Holdings down 3% to 11,535,145 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| Aug 7, 2026 | Sale | Valle Perochena Antonio Del (Director and 10% owner) sold 300,000 shares indirectly (by entity) at $39.10 ($11.7M). Holdings by entity down 3% to 11,535,145 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| May 4, 2026 | Purchase (code P) | William G. Kistner (Director) bought 100 shares indirectly (by trust) at $31.97 ($3K), reported as a purchase (code P). Holdings by trust up 1% to 14,189 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 4, 2026 |
| Mar 16, 2026 | Purchase (code P) | Mary Jo S. Herseth (Director) bought 300 shares indirectly (by trust) at $30.83 ($9K), reported as a purchase (code P). Holdings by trust up 2% to 18,800 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 16, 2026 |
| Feb 26, 2026 | Sale | John Barkidjija (Head of Cre & Specialty Fin) sold 4,509 shares at $32.33 ($146K). Holdings down 19% to 19,243 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 2, 2026 |
| Feb 17, 2026 | Purchase (code P) | Brian F Doran (General Counsel) bought 750 shares at $33.13 ($25K), reported as a purchase (code P). New position of 750 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 17, 2026 |
| Jan 28, 2026 | Purchase (code P) | Phillip R. Cabrera (Director) bought 169 shares indirectly (by trust) at $31.03 ($5K), reported as a purchase (code P). Holdings by trust up 4% to 4,129 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 29, 2026 |
19 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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