Latest Period
Q1 2026
Security Snapshot
BYLINE BANCORP, INC. - Common Stock (BY) Institutional Ownership
CUSIP: 124411109
13F Institutional Holders and Ownership History from Q2 2017 to Q1 2026
Institutions Reporting
187
Shares (Excl. Options)
25,027,154
Price
$31.57
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- Security type / class
- Equity / Common Stock
- Symbol
- BY on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 25,027,154
- Total 13F value
- $789,876,721
- Portfolio coverage rank
- 0%
- Share change
- +734,722
- Value change
- +$23,836,928
- Number of holders
- 187
- Shares outstanding
- 45,823,406
- SEC-reported price per share
- $32.57
- Insider filing price
- $32.57
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BY - BYLINE BANCORP, INC. - Common Stock is tracked under CUSIP 124411109.
- 187 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 178 to 187 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $710,444,696 to $789,876,721.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 187 institutions filings for Q1 2026.
Security key
124411109
Latest holder period
Q1 2026
13F holders
187
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
BY full holder history
BYLINE BANCORP, INC. SEC filings
BYLINE BANCORP, INC. company facts
BYLINE BANCORP, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 124411109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
BY
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| MBG INVESTORS I, L.P. | 27% | $307,122,013 | 11,835,145 | MBG Investors I, L.P. | 12 Feb 2025 | |||
| DIMENSIONAL FUND ADVISORS LP | 5.1% | $64,395,674 | 2,322,339 | Dimensional Fund Advisors LP | 30 Sep 2025 | |||
| BlackRock, Inc. | 5% | +8.4% | $63,788,290 | +$4,822,386 | 2,300,335 | +8.2% | BlackRock, Inc. | 30 Sep 2025 |
| Estate of Daniel L. Goodwin | 0% | $368,232 | 13,613 | Estate of Daniel L. Goodwin | 30 Jun 2025 |
As of 31 Mar 2026, 187 institutional investors reported holding 25,027,154 shares of BYLINE BANCORP, INC. - Common Stock (BY). This represents 55% of the company’s total 45,823,406 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
42%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.2% | 3,294,923 | +0.42% | 0% | $104,020,725 |
| DIMENSIONAL FUND ADVISORS LP | 5.2% | 2,366,600 | +1.6% | 0.02% | $74,712,927 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.7% | 1,258,599 | 0% | 0% | $39,733,970 |
| STATE STREET CORP | 2.3% | 1,031,062 | +3.4% | 0% | $32,550,627 |
| WELLINGTON MANAGEMENT GROUP LLP | 2.2% | 1,023,948 | -14% | 0.01% | $32,326,039 |
| Boston Partners | 2% | 918,449 | +30% | 0.03% | $29,067,153 |
| AMERICAN CENTURY COMPANIES INC | 2% | 905,189 | +7.7% | 0.01% | $28,576,817 |
| FMR LLC | 1.8% | 826,069 | -14% | 0% | $26,079,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 788,033 | +3.1% | 0% | $24,882,057 |
| Aristotle Capital Boston, LLC | 1.5% | 674,784 | -16% | 1.3% | $21,302,931 |
| AQR CAPITAL MANAGEMENT LLC | 1.5% | 665,386 | +32% | 0.01% | $21,006,234 |
| FEDERATED HERMES, INC. | 1.4% | 624,421 | +8.9% | 0.03% | $19,712,971 |
| Ararat Capital Management LP | 1.4% | 623,772 | -4.2% | 11% | $19,692,482 |
| T. Rowe Price Investment Management, Inc. | 1.3% | 614,709 | +6.5% | 0.01% | $19,407,000 |
| JPMORGAN CHASE & CO | 1% | 459,417 | -19% | 0% | $14,320,029 |
| Nuveen, LLC | 0.93% | 424,867 | -5.7% | 0% | $13,413,052 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.92% | 423,525 | -0.94% | 0.27% | $13,370,684 |
| Qube Research & Technologies Ltd | 0.75% | 341,527 | -1% | 0.02% | $10,782,007 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.73% | 335,839 | 0% | 0% | $10,602,437 |
| GOLDMAN SACHS GROUP INC | 0.65% | 299,441 | +8.4% | 0% | $9,453,353 |
| MILLENNIUM MANAGEMENT LLC | 0.63% | 287,664 | +80% | 0.01% | $9,081,552 |
| MORGAN STANLEY | 0.62% | 281,991 | -17% | 0% | $8,902,510 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.59% | 268,447 | -1.1% | 0% | $8,474,872 |
| NORTHERN TRUST CORP | 0.58% | 266,412 | +2.8% | 0% | $8,410,627 |
| Assenagon Asset Management S.A. | 0.5% | 227,317 | 0.01% | $7,176,398 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
36
Latest
Q1 2026
Rows shown
1-25 of 36
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 25,027,154 | $789,876,721 | +$23,836,928 | $31.57 | 187 |
| 2025 Q4 | 24,367,351 | $710,444,696 | +$5,136,496 | $29.15 | 178 |
| 2025 Q3 | 24,348,042 | $675,171,575 | +$11,090,275 | $27.73 | 173 |
| 2025 Q2 | 23,943,646 | $639,944,826 | +$100,467,531 | $26.73 | 166 |
| 2025 Q1 | 20,185,598 | $527,873,449 | +$5,323,465 | $26.16 | 146 |
| 2024 Q4 | 20,085,271 | $582,332,626 | +$23,908,718 | $29.00 | 142 |
| 2024 Q3 | 19,183,795 | $513,455,697 | +$14,722,237 | $26.77 | 138 |
| 2024 Q2 | 18,639,083 | $442,520,368 | +$12,219,694 | $23.74 | 132 |
| 2024 Q1 | 18,220,290 | $395,741,775 | +$1,109,954 | $21.72 | 132 |
| 2023 Q4 | 18,243,537 | $429,954,997 | +$4,198,340 | $23.56 | 128 |
| 2023 Q3 | 17,799,723 | $350,833,756 | -$3,605,845 | $19.71 | 116 |
| 2023 Q2 | 18,070,789 | $327,071,560 | -$6,638,454 | $18.09 | 106 |
| 2023 Q1 | 18,328,486 | $396,170,285 | +$2,722,933 | $21.62 | 111 |
| 2022 Q4 | 18,177,952 | $417,543,110 | +$9,906,748 | $22.97 | 109 |
| 2022 Q3 | 17,803,489 | $360,551,890 | +$4,913,090 | $20.25 | 120 |
| 2022 Q2 | 17,495,779 | $416,402,429 | +$22,355,025 | $23.80 | 112 |
| 2022 Q1 | 17,104,417 | $456,335,868 | +$7,166,072 | $26.68 | 126 |
| 2021 Q4 | 16,838,586 | $460,530,165 | +$18,957,592 | $27.35 | 118 |
| 2021 Q3 | 16,047,030 | $394,136,836 | +$9,121,539 | $24.56 | 110 |
| 2021 Q2 | 15,763,623 | $356,746,388 | +$13,217,417 | $22.63 | 101 |
| 2021 Q1 | 15,248,127 | $322,497,311 | +$3,975,843 | $21.15 | 93 |
| 2020 Q4 | 15,133,337 | $233,824,419 | +$4,698,071 | $15.45 | 89 |
| 2020 Q3 | 14,051,383 | $158,610,937 | +$357,898 | $11.28 | 86 |
| 2020 Q2 | 13,999,906 | $183,419,310 | +$5,112,899 | $13.10 | 84 |
| 2020 Q1 | 13,658,227 | $141,628,098 | -$4,292,192 | $10.37 | 84 |