$BY insider trading
Over the last 12 months, Byline Bancorp insiders reported 7 buys totaling $60K and 7 sales totaling $25.5M across SEC Form 4 filings.
- Bought · 12m
- $60K 7 events
- Sold · 12m
- $25.5M 7 events
- Events · 12m
- 14 Form 4 filings, grouped
- Insiders · 12m
- 11 distinct reporters
- 10b5-1 share
- 0% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 19, 2026 | KISTNER WILLIAM GD | ▲ Buy | 100 | $38.3 | $4K | +0.7% | indirect |
| Aug 19, 2026 | HERSETH MARY JO S.D | ▲ Buy | 300 | $38.4 | $12K | +1.6% | indirect |
| Aug 13, 2026 | HERENCIA ROBERTO RCHIEF EXECUTIVE OFFICER · O·D | ▼ Sale | 19,750 | $39.21 | $774K | -4.6% | — |
| Aug 12, 2026 | Rose DanaCHIEF HUMAN RESOURCES OFFICER · O | ▼ Sale | 2,421 | $39 | $94K | -17.3% | — |
| Aug 7, 2026 | MBG INVESTORS I, L.P.10% | ▼ Sale | 300,000 | $39.1 | $11.7M | -2.5% | — |
| Aug 7, 2026 | DEL VALLE PEROCHENA ANTONIOD·10% | ▼ Sale | 300,000 | $39.1 | $11.7M | -2.5% | indirect |
| Aug 3, 2026 | Ptacin BroganHEAD OF COMMERCIAL BANKING · O | ▽ Sale to issuer | 9,450 | $39.61 | $374K | -26.8% | — |
| May 4, 2026 | KISTNER WILLIAM GD | ▲ Buy | 100 | $31.97 | $3K | +0.7% | indirect |
| Mar 16, 2026 | HERSETH MARY JO S.D | ▲ Buy | 300 | $30.83 | $9K | +1.6% | indirect |
| Feb 26, 2026 | Barkidjija JohnHEAD OF CRE & SPECIALTY FIN · O | ▼ Sale | 4,509 | $32.33 | $146K | -19% | — |
| Feb 17, 2026 | Doran Brian FGeneral Counsel · O | ▲ Buy | 750 | $33.13 | $25K | — | — |
| Jan 28, 2026 | CABRERA PHILLIP R.D | ▲ Buy | 169 | $31.03 | $5K | +4.3% | indirect |
| Oct 28, 2025 | ABRAHAM THOMASPRESIDENT, SBC · O | ▼ Sale | 23,400 | $26.89 | $629K | -37.6% | 2 tranches |
| Oct 28, 2025 | KISTNER WILLIAM GD | ▲ Buy | 65 | $27.56 | $2K | +0.5% | indirect |
| Sep 12, 2025 | Rose DanaCHIEF HUMAN RESOURCES OFFICER · O | ▼ Sale | 1,999 | $28.76 | $57K | -16.4% | — |
| Aug 28, 2025 | Ptacin BroganHEAD OF COMMERCIAL BANKING · O | ▼ Sale | 11,812 | $29.1 | $344K | -35.2% | — |
| Aug 8, 2025 | KISTNER WILLIAM GD | ▲ Buy | 60 | $25.7 | $2K | +0.4% | indirect |
Every $BY filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Byline Bancorp filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $BY feed.