Byline Bancorp, Inc. (BY) ownership: Top institutional holder: BlackRock, Inc. ($104.02M). Insider activity: Net Seller (5 buys, 15 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 3294923.00 | $104.02M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 2366600.00 | $74.71M | 2026-03-31 |
| VANGUARD GROUP INC | 1822619.00 | $53.13M | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1258599.00 | $39.73M | 2026-03-31 |
| STATE STREET CORP | 1031062.00 | $32.55M | 2026-03-31 |
| WELLINGTON MANAGEMENT GROUP LLP | 1023948.00 | $32.33M | 2026-03-31 |
| Boston Partners | 918449.00 | $29.07M | 2026-03-31 |
| AMERICAN CENTURY COMPANIES INC | 905189.00 | $28.58M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-08-19 | |
| Buy | null | 2026-08-19 | |
| Sell | null | 2026-08-13 | |
| Sell | null | 2026-08-12 | |
| Sell | null | 2026-08-07 | |
| Sell | null | 2026-08-07 | |
| Sell | null | 2026-08-03 | |
| Sell | null | 2026-08-03 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.