BYLINE BANCORP INC BY
COM · Common Stock · CUSIP 124411109
- SectorFinancials
- IndustryState Commercial Banks
- HeadquartersChicago, IL
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($8.5m this quarter). Holder counts are more reliable. Shares outstanding: 45.2m as of 2026-08-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $40.72.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 121 |
| Q4 2022 | 109 |
| Q1 2023 | 112 |
| Q2 2023 | 108 |
| Q3 2023 | 119 |
| Q4 2023 | 131 |
| Q1 2024 | 133 |
| Q2 2024 | 134 |
| Q3 2024 | 140 |
| Q4 2024 | 142 |
| Q1 2025 | 149 |
| Q2 2025 | 170 |
| Q3 2025 | 174 |
| Q4 2025 | 178 |
| Q1 2026 | 188 |
| Q2 2026 | 208 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 74 | 54 |
| Q4 2024 | 71 | 56 |
| Q1 2025 | 66 | 63 |
| Q2 2025 | 99 | 57 |
| Q3 2025 | 98 | 69 |
| Q4 2025 | 92 | 77 |
| Q1 2026 | 89 | 73 |
| Q2 2026 | 117 | 66 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $0 | $13.0k | — |
| Q4 2025 | $0 | $0 | — |
| Q1 2026 | $0 | $0 | — |
| Q2 2026 | $0 | $0 | — |
Biggest buyers
| T. Rowe Price Investment Management, Inc. | Added | +880.9k |
| FEDERATED HERMES, INC. | Added | +233.4k |
| BlackRock, Inc. | Added | +216.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +173.1k |
| AQR CAPITAL MANAGEMENT LLC | Added | +148.5k |
| TWO SIGMA INVESTMENTS, LP | Added | +143.1k |
| AMERICAN CENTURY COMPANIES INC | Added | +104.8k |
| RENAISSANCE TECHNOLOGIES LLC | New | +80.6k |
| Thrivent Financial for Lutherans | Added | +67.9k |
| STATE STREET CORP | Added | +58.2k |
Biggest sellers
| Aristotle Capital Boston, LLC | Sold out | -674.8k |
| FMR LLC | Reduced | -643.7k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -535.5k |
| Assenagon Asset Management S.A. | Sold out | -227.3k |
| Ararat Capital Management LP | Reduced | -133.2k |
| SEI INVESTMENTS CO | Sold out | -129.6k |
| Qube Research & Technologies Ltd | Reduced | -122.4k |
| MALTESE CAPITAL MANAGEMENT LLC | Reduced | -90.6k |
| GOLDMAN SACHS GROUP INC | Reduced | -86.9k |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | -67.0k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| MBG INVESTORS I, L.P. 13G · exempt (held before listing) -1.1 pts · filed 2026-08-17 | 25.6% |
| DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2025-10-09 | 5.1% |
| BlackRock, Inc. 13G · institution +0.4 pts · filed 2025-10-17 | 5.0% |
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 1 | $1.5k | 3 | $629.7k | — |
| Q1 2025 | 2 | $9.1k | 2 | $318.1k | — |
| Q2 2025 | 6 | $1.3m | 1 | $326.0k | — |
| Q3 2025 | 1 | $1.5k | 2 | $401.2k | — |
| Q4 2025 | 1 | $1.8k | 1 | $629.1k | — |
| Q1 2026 | 3 | $39.3k | 1 | $145.8k | — |
| Q2 2026 | 1 | $3.2k | 0 | — | — |
| Q3 2026 | 2 | $15.3k | 3 | $12.6m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-19 | HERSETH MARY JO S. Director · The Herseth Family Revocable Trust Dated 12/02/25 | Bought | $11.5k300 shares |
| 2026-08-19 | KISTNER WILLIAM G Director · William G. Kistner Trust Date June 22, 1973 | Bought | $3.8k100 shares |
| 2026-08-13 | HERENCIA ROBERTO R CHIEF EXECUTIVE OFFICER, director | Sold | $774.4k19.8k shares |
| 2026-08-12 | Rose Dana CHIEF HUMAN RESOURCES OFFICER | Sold | $94.4k2.4k shares |
| 2026-08-07 | DEL VALLE PEROCHENA ANTONIO Director · By MBG Investors I, L.P. | Sold | $11.7m300.0k shares |
| 2026-08-07 | MBG INVESTORS I, L.P. 10% owner | Sold | $11.7m300.0k shares |
| 2026-05-04 | KISTNER WILLIAM G Director · William G. Kistner Trust Date June 22, 1973 | Bought | $3.2k100 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 3.5m $132.2m | Added +216.0k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 2.4m $91.3m | Added +58.2k |
| T. Rowe Price Investment Management, Inc. 0.04% of their portfolio | 1.5m $56.3m | Added +880.9k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.2m $44.9m | Reduced -67.0k |
| STATE STREET CORP 0.00% of their portfolio | 1.1m $41.0m | Added +58.2k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 1.0m $38.0m | Added +104.8k |
| Boston Partners 0.03% of their portfolio | 883.7k $33.2m | Reduced -34.8k |
| FEDERATED HERMES, INC. 0.05% of their portfolio | 857.8k $32.3m | Added +233.4k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 813.9k $30.6m | Added +148.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 810.2k $30.5m | Added +22.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 507.7k $19.1m | Added +48.2k |
| Ararat Capital Management LP 8.65% of their portfolio | 490.6k $18.5m | Reduced -133.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 488.5k $18.4m | Reduced -535.5k |
| Nuveen, LLC 0.00% of their portfolio | 437.3k $16.5m | Added +12.4k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.28% of their portfolio | 424.3k $16.0m | Added +728 |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 362.7k $13.7m | Added +26.8k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 350.1k $13.2m | Added +143.1k |
| MORGAN STANLEY 0.00% of their portfolio | 301.1k $11.3m | Added +19.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 295.9k $11.1m | Added +29.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 269.1k $10.1m | Added +620 |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 250.6k $9.4m | Reduced -37.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 245.3k $9.2m | Added +173.1k |
| ENDEAVOUR CAPITAL ADVISORS INC 1.84% of their portfolio | 238.7k $9.0m | Added +58.0k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 219.2k $8.3m | Reduced -122.4k |
| Empowered Funds, LLC 0.04% of their portfolio | 213.3k $8.0m | Added +10.7k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 212.6k $8.0m | Reduced -86.9k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 211.0k $7.9m | Added +4.1k |
| Detalus Advisors, LLC 1.44% of their portfolio | 196.1k $7.4m | Reduced -3.7k |
| DENALI ADVISORS LLC 0.70% of their portfolio | 185.5k $7.0m | Added +18.1k |
| FMR LLC 0.00% of their portfolio | 182.4k $6.9m | Reduced -643.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 167.1k $6.3m | Added +3.8k |
| Creative Planning 0.00% of their portfolio | 163.5k $6.2m | Added +20.3k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 157.1k $5.9m | Added +67.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 151.4k $5.7m | Added +15.6k |
| Curi Capital, LLC 0.08% of their portfolio | 143.0k $5.4m | Reduced -1.2k |
| ZACKS INVESTMENT MANAGEMENT 0.04% of their portfolio | 139.6k $5.3m | Added +8.6k |
| Mariner, LLC 0.01% of their portfolio | 137.2k $5.2m | Added +8.2k |
| BARTLETT & CO. WEALTH MANAGEMENT LLC 0.06% of their portfolio | 134.2k $5.1m | Unchanged |
| MALTESE CAPITAL MANAGEMENT LLC 0.89% of their portfolio | 130.0k $4.9m | Reduced -90.6k |
| MENDON CAPITAL ADVISORS CORP 1.66% of their portfolio | 125.0k $4.7m | Unchanged |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 123.8k $4.7m | Added +37.3k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 111.0k $4.2m | Added +7.7k |
| FIDUCIENT ADVISORS LLC 0.60% of their portfolio | 110.8k $4.2m | Reduced -3.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 106.9k $4.0m | Reduced -10.9k |
| Trexquant Investment LP 0.02% of their portfolio | 98.5k $3.7m | Reduced -3.0k |
| UBS Group AG 0.00% of their portfolio | 96.7k $3.6m | Reduced -61.7k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 90.3k $3.4m | Added +42.4k |
| Man Group plc 0.01% of their portfolio | 88.8k $3.3m | Added +38.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 80.6k $3.0m | New |
| BLAIR WILLIAM & CO/IL 0.01% of their portfolio | 79.9k $3.0m | Added +3.9k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 73.9k $2.8m | Added +18.9k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 68.3k $2.6m | Reduced -52.1k |
| IEQ CAPITAL, LLC 0.01% of their portfolio | 67.0k $2.5m | Added +455 |
| Swiss National Bank 0.00% of their portfolio | 66.3k $2.5m | Reduced -1.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 61.0k $1.9m | Reduced -26.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 58.1k $2.2m | Added +3.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 57.3k $2.2m | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 56.9k $2.1m | Added +13.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 55.6k $2.1m | Reduced -525 |
| Focus Partners Wealth 0.00% of their portfolio | 52.4k $2.0m | Added +701 |
| ALGERT GLOBAL LLC 0.02% of their portfolio | 51.6k $1.9m | New |
| Campbell & CO Investment Adviser LLC 0.10% of their portfolio | 51.5k $1.9m | Added +29.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 49.7k $1.9m | Added +3.3k |
| Invesco Ltd. 0.00% of their portfolio | 47.6k $1.8m | Reduced -4.4k |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 46.9k $1.8m | Added +23.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 45.3k $1.7m | Added +2.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 40.3k $1.5m | Added +9.0k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 39.6k $1.5m | Reduced -4.1k |
| BARCLAYS PLC 0.00% of their portfolio | 38.2k $1.4m | Reduced -7.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 32.5k $1.2m | Added +1.2k |
| XTX Topco Ltd 0.02% of their portfolio | 32.0k $1.2m | Added +19.5k |
| QUATTRO FINANCIAL ADVISORS LLC 0.24% of their portfolio | 30.0k $1.1m | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 29.9k $1.1m | Reduced -15 |
| CITIGROUP INC 0.00% of their portfolio | 29.1k $1.1m | Added +4.1k |
| WEDGE CAPITAL MANAGEMENT L L P/NC 0.02% of their portfolio | 28.9k $1.1m | Reduced -631 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 28.2k $1.1m | Added +23.4k |
| Quantinno Capital Management LP 0.00% of their portfolio | 28.2k $1.1m | Added +8.8k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.02% of their portfolio | 28.1k $1.1m | Added +2.9k |
| PDT Partners, LLC 0.05% of their portfolio | 27.3k $1.0m | Unchanged |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 26.8k $1.0m | Reduced -18.1k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio | 26.0k $979.2k | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 25.8k $973.0k | Added +2.8k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 24.9k $938.0k | Added +2.5k |
| Legal & General Group Plc 0.00% of their portfolio | 24.8k $932.8k | Added +238 |
| DARK FOREST CAPITAL MANAGEMENT LP 0.06% of their portfolio | 23.6k $887.3k | Added +11.1k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 22.3k $839.8k | Unchanged |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 22.2k $836.7k | Added +6.3k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 21.0k $789.0k | New |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 19.9k $739.6k | Added +4.2k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 19.8k $745.6k | New |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 19.7k $742.5k | Unchanged |
| BANC FUNDS CO LLC 0.12% of their portfolio | 19.7k $741.2k | Reduced -14.5k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 18.6k $701.9k | Added +165 |
| Quantbot Technologies LP 0.03% of their portfolio | 18.3k $691.0k | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 18.1k $680.9k | Reduced -32.1k |
| Inspire Investing, LLC 0.03% of their portfolio | 18.1k $680.0k | Added +1.9k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 17.3k $652.5k | Reduced -88 |
| Brevan Howard Capital Management LP 0.01% of their portfolio | 17.2k $647.0k | New |
| PRINCETON CAPITAL MANAGEMENT LLC 0.15% of their portfolio | 17.1k $643.0k | Added +587 |
| Sequoia Financial Advisors, LLC 0.00% of their portfolio | 16.7k $627.2k | New |