BY · Insider Trading
Byline Bancorp, Inc. Common Stock
Every open-market purchase and sale reported by BY officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | William G Kistner | Director | Buy | +100 | +$3.83K |
| 2026-08-20 | Mary Jo S. Herseth | Director | Buy | +300 | +$11.52K |
| 2026-08-14 | Roberto R Herencia | CHIEF EXECUTIVE OFFICER | Sell | −19,750 | −$774.31K |
| 2026-08-12 | Dana Rose | CHIEF HUMAN RESOURCES OFFICER | Sell | −2,421 | −$94.42K |
| 2026-08-11 | MBG INVESTORS I, L.P. | 10%+ Owner | Sell | −300,000 | −$11.73M |
| 2026-08-11 | Perochena Antonio Del Valle | Director | Sell | −300,000 | −$11.73M |
| 2026-08-04 | Brogan Ptacin | HEAD OF COMMERCIAL BANKING | MIXED | — | −$254.31K |
| 2026-06-10 | Velez Margarita Hugues | Director | A | +1,533 | — |
| 2026-06-10 | Carlos Ruiz Sacristan | Director | A | +1,533 | — |
| 2026-06-03 | Velez Margarita Hugues | Director | F | −530 | −$17.71K |
| 2026-05-04 | William G Kistner | Director | Buy | +100 | +$3.20K |
| 2026-04-20 | Thomas Abraham | PRESIDENT, SBC | A | +2,406 | — |
| 2026-03-16 | Mary Jo S. Herseth | Director | Buy | +300 | +$9.25K |
| 2026-03-02 | John Barkidjija | HEAD OF CRE & SPECIALTY FIN | Sell | −4,509 | −$145.78K |
| 2026-02-24 | Brian F Doran | General Counsel | A | +1,783 | — |
| 2026-02-24 | Alberto J Paracchini | PRESIDENT | MIXED | +13,174 | −$204.01K |
| 2026-02-24 | Thomas Abraham | PRESIDENT, SBC | MIXED | +4,251 | −$94.19K |
| 2026-02-24 | Maria Sherylle A Olano | SVP, CHIEF ACCOUNTING OFFICER | MIXED | +1,346 | −$34.19K |
| 2026-02-24 | Dana Rose | CHIEF HUMAN RESOURCES OFFICER | MIXED | +3,834 | −$66.06K |
| 2026-02-24 | Roberto R Herencia | CHIEF EXECUTIVE OFFICER | MIXED | +37,492 | −$569.41K |
| 2026-02-24 | Nicolas Mando | CHIEF TECHNOLOGY & OPERATIONS | MIXED | +2,527 | −$46.65K |
| 2026-02-24 | John Barkidjija | HEAD OF CRE & SPECIALTY FIN | MIXED | +3,874 | −$71.20K |
| 2026-02-24 | Michelle Lynn Johnson | CHIEF RISK OFFICER | MIXED | +3,093 | −$44.36K |
| 2026-02-24 | Thomas J Bell III | EVP CHIEF FINANCIAL OFFICER | MIXED | +6,337 | −$167.60K |
| 2026-02-24 | Megan Biggam | EVP HEAD OF COMMUNITY BANKING | MIXED | +2,697 | −$48.04K |
| 2026-02-24 | Mark Fucinato | CHIEF CREDIT OFFICER | MIXED | +3,888 | −$77.95K |
| 2026-02-24 | Brogan Ptacin | HEAD OF COMMERCIAL BANKING | MIXED | +4,085 | −$72.75K |
| 2026-02-17 | Brian F Doran | General Counsel | Buy | +750 | +$24.85K |
| 2026-01-29 | Phillip R. Cabrera | Director | Buy | +169 | +$5.24K |
| 2025-12-10 | Mary Jo S. Herseth | Director | J | — | — |
| 2025-10-29 | Thomas Abraham | PRESIDENT, SBC | Sell | −23,400 | −$629.15K |
| 2025-10-28 | William G Kistner | Director | Buy | +65 | +$1.79K |
| 2025-09-15 | Dana Rose | CHIEF HUMAN RESOURCES OFFICER | Sell | −1,999 | −$57.49K |
| 2025-09-02 | Maria Sherylle A Olano | SVP, CHIEF ACCOUNTING OFFICER | F | −217 | −$5.93K |
| 2025-08-29 | Brogan Ptacin | HEAD OF COMMERCIAL BANKING | MIXED | — | −$206.12K |
| 2025-08-11 | William G Kistner | Director | Buy | +60 | +$1.54K |
| 2025-06-24 | Roberto R Herencia | CHIEF EXECUTIVE OFFICER | MIXED | +67,132 | −$1.36M |
| 2025-06-24 | Thomas J Bell III | EVP CHIEF FINANCIAL OFFICER | MIXED | +14,101 | −$263.89K |
| 2025-06-23 | Megan Biggam | EVP HEAD OF COMMUNITY BANKING | MIXED | +14,311 | −$148.61K |
| 2025-06-13 | Mary Jo S. Herseth | Director | Buy | +2,000 | +$50.65K |
| 2025-06-13 | Perochena Antonio Del Valle | Director | Buy | +40,808 | +$1.01M |
| 2025-06-13 | William G Kistner | Director | Buy | +164 | +$4.15K |
| 2025-06-13 | Steven P. Kent | Director | Buy | +4,125 | +$102.09K |
| 2025-06-13 | Roberto R Herencia | CHIEF EXECUTIVE OFFICER | Buy | +4,040 | +$99.99K |
| 2025-06-12 | Phillip R. Cabrera | Director | Buy | +2,360 | +$58.41K |
| 2025-06-12 | Megan Biggam | EVP HEAD OF COMMUNITY BANKING | MIXED | — | −$56.22K |
| 2025-06-11 | Megan Biggam | EVP HEAD OF COMMUNITY BANKING | MIXED | — | −$133.57K |
| 2025-06-04 | Velez Margarita Hugues | Director | MIXED | +840 | −$24.11K |
| 2025-03-07 | Mary Jo S. Herseth | Director | Buy | +268 | +$7.28K |
| 2025-03-06 | William G Kistner | Director | Buy | +65 | +$1.80K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Perochena Antonio Del Valle | Director | 11,575,953 | $432.82M |
| MBG INVESTORS I, L.P. | 10%+ Owner | 11,535,145 | $431.30M |
| Roberto R Herencia | CHIEF EXECUTIVE OFFICER | 414,218 | $15.49M |
| Alberto J Paracchini | PRESIDENT | 188,990 | $7.07M |
| Steven P. Kent | Director | 118,750 | $4.44M |
| Thomas J Bell III | EVP CHIEF FINANCIAL OFFICER | 59,702 | $2.23M |
| Brogan Ptacin | HEAD OF COMMERCIAL BANKING | 53,059 | $1.98M |
| Carlos Ruiz Sacristan | Director | 46,364 | $1.73M |
| Thomas Abraham | PRESIDENT, SBC | 45,539 | $1.70M |
| Megan Biggam | EVP HEAD OF COMMUNITY BANKING | 34,172 | $1.28M |
| Mark Fucinato | CHIEF CREDIT OFFICER | 25,623 | $958.04K |
| Phillip R. Cabrera | Director | 20,000 | $747.80K |
| John Barkidjija | HEAD OF CRE & SPECIALTY FIN | 19,243 | $719.50K |
| Mary Jo S. Herseth | Director | 19,100 | $714.15K |
| Maria Sherylle A Olano | SVP, CHIEF ACCOUNTING OFFICER | 18,768 | $701.74K |
| William G Kistner | Director | 15,325 | $573.00K |
| Nicolas Mando | CHIEF TECHNOLOGY & OPERATIONS | 15,297 | $571.95K |
| Dana Rose | CHIEF HUMAN RESOURCES OFFICER | 11,605 | $433.91K |
| Michelle Lynn Johnson | CHIEF RISK OFFICER | 10,332 | $386.31K |
| Velez Margarita Hugues | Director | 8,722 | $326.12K |
| Brian F Doran | General Counsel | 2,533 | $94.71K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the BY quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.