Over the 90-day window ending January 21, 2026, Byline Bancorp's three dominant insider ownership positions are held by Director Valle Perochena Antonio Del (11.88Mn shares), TenPercentOwner Investors I, L.P. Mbg (11.84Mn shares), Chief Executive Officer Roberto R Herencia (393.90K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Valle Perochena Antonio Del | 11,875,953 | 13 Jun, 2025 | |
| Investors I, L.P. Mbg | 11,835,145 | 04 Mar, 2024 | |
| Roberto R Herencia | Chief Executive Officer | 393,901 | 24 Jun, 2025 |
| Alberto J Paracchini | President | 181,102 | 26 Feb, 2025 |
| Steven P. Kent | 118,750 | 11 May, 2021 | |
| Lindsay Y Corby | Evp And Cfo | 54,139 | 10 Jun, 2022 |
| Thomas J Iii Bell | Evp Chief Financial Officer | 51,037 | 24 Jun, 2025 |
| Brogan Ptacin | Head Of Commercial Banking | 48,974 | 29 Aug, 2025 |
| Thomas Abraham | President And Sbc | 38,882 | 29 Oct, 2025 |
| Megan Biggam | Evp Head Of Community Banking | 31,941 | 23 Jun, 2025 |
| Mark Fucinato | Chief Credit Officer | 20,801 | 26 Feb, 2025 |
| John Barkidjija | Head Of Cre & Specialty Fin | 19,878 | 28 Feb, 2025 |
| Phillip R. Cabrera | 19,831 | 07 May, 2023 | |
| Mary Jo S. Herseth | 18,500 | 10 Dec, 2025 | |
| Maria Sherylle A Olano | Svp And Chief Accounting Officer | 17,143 | 02 Sep, 2025 |
| William G Kistner | 16,460 | 08 Jun, 2023 | |
| Nicolas Mando | Chief Technology & Operations | 12,330 | 26 Feb, 2025 |
| Dana Rose | Chief Human Resources Officer | 10,192 | 15 Sep, 2025 |
| Michelle Lynn Johnson | Chief Risk Officer | 7,965 | 26 Feb, 2025 |
| Velez Margarita Hugues | 7,719 | 04 Jun, 2025 | |
| Pamela C Stewart | 6,336 | 08 Aug, 2024 | |
| Hart Angela E Major | Evp And Head Of Wealth Management | 6,289 | 24 Feb, 2023 |
| Ana Casanueva | Svp And Director Of Legal | 5,793 | 29 Feb, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 10 Dec, 2025 | Mary Jo S. Herseth | Common stock | D | 18,500 | - | 0 | D | J |
| 10 Dec, 2025 | Mary Jo S. Herseth | Common stock | A | 18,500 | - | 18,500 | I | J |
| 28 Oct, 2025 | William G Kistner | Common stock | A | 65 | $27.56 | 14,089 | I | P |
| 28 Oct, 2025 | Thomas Abraham | Comon stock | D | 20,000 | $26.87 | 38,882 | D | S |
| 28 Oct, 2025 | Thomas Abraham | Comon stock | D | 3,400 | $26.98 | 58,882 | D | S |
| 12 Sep, 2025 | Dana Rose | - | - | 10,192 | D | |||
| 12 Sep, 2025 | Dana Rose | Common stock | D | 1,999 | $28.76 | 10,192 | D | S |
| 28 Aug, 2025 | Brogan Ptacin | Common stock | A | 11,812 | $11.65 | 33,586 | D | M |
| 28 Aug, 2025 | Brogan Ptacin | Common stock | D | 11,812 | $29.10 | 21,774 | D | S |
| 28 Aug, 2025 | Brogan Ptacin | - | - | 33,586 | D | |||
| 28 Aug, 2025 | Brogan Ptacin | - | - | 21,774 | D | |||
| 08 Aug, 2025 | William G Kistner | Common stock | A | 60 | $25.70 | 14,024 | I | P |
| 29 Jul, 2025 | Maria Sherylle A Olano | Common stock | D | 217 | $27.32 | 17,143 | D | F |
| 29 Jul, 2025 | Maria Sherylle A Olano | - | - | 17,143 | D | |||
| 23 Jun, 2025 | Roberto R Herencia | Common stock | D | 73,681 | $25.52 | 393,901 | D | F |
| 23 Jun, 2025 | Roberto R Herencia | Common stock | A | 107,247 | $11.18 | 434,016 | D | M |
| 23 Jun, 2025 | Roberto R Herencia | Common stock | D | 73,681 | $25.52 | 360,335 | D | F |
| 23 Jun, 2025 | Roberto R Herencia | Common stock | A | 107,247 | $11.18 | 467,582 | D | M |
| 23 Jun, 2025 | Thomas J Iii Bell | - | - | 46,296 | D | |||
| 23 Jun, 2025 | Thomas J Iii Bell | - | - | 60,920 | D |