Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

BYLINE BANCORP, INC.

CIK 0001702750BY· quarter ending 2026-06-30
Shares outstanding
45,186,420
Held by 13F filers
24,964,600
55.2% of shares outstanding
Holders
208
+20 vs 2026-03-31 · 35 new, 15 exited
Value
$1.0B
shares -0.3% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-06, as of 2026-08-03)

ClassListedShares outstandingHeld by 13F filers% of classHoldersCUSIP
Common stockBY · NYSE45,186,42024,964,60055.2%208124411109

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine
CountCUSIPClass (as filers write it)HoldersShares heldClass shares% of classValueOptionsMapped via
124411109COM20824,964,60045,186,42055.2%$1.0B—13DGholders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 1 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (208 of 208 · 124411109)

change vs 2026-03-31
#FilerShares% of classValueChange
1BlackRock, Inc.3,510,8967.77%$132.2M+215,973 (+6.6%)
2DIMENSIONAL FUND ADVISORS LP2,424,8245.37%$91.3M+58,224 (+2.5%)
3T. Rowe Price Investment Management, Inc.1,495,5883.31%$56.3M+880,879 (+143.3%)
4VANGUARD CAPITAL MANAGEMENT LLC1,191,6252.64%$44.9M-66,974 (-5.3%)
5STATE STREET CORP1,089,2932.41%$41.0M+58,231 (+5.6%)
6AMERICAN CENTURY COMPANIES INC1,009,9512.24%$38.0M+104,762 (+11.6%)
7Boston Partners883,6891.96%$33.2M-34,760 (-3.8%)
8FEDERATED HERMES, INC.857,8251.90%$32.3M+233,404 (+37.4%)
9AQR CAPITAL MANAGEMENT LLC813,8551.80%$30.6M+148,469 (+22.3%)
10GEODE CAPITAL MANAGEMENT, LLC810,2081.79%$30.5M+22,175 (+2.8%)
11JPMORGAN CHASE & CO507,6521.12%$19.1M+48,235 (+10.5%)
12Ararat Capital Management LP490,6091.09%$18.5M-133,163 (-21.3%)
13WELLINGTON MANAGEMENT GROUP LLP488,4601.08%$18.4M-535,488 (-52.3%)
14Nuveen, LLC437,3020.97%$16.5M+12,435 (+2.9%)
15BRIDGEWAY CAPITAL MANAGEMENT, LLC424,2530.94%$16.0M+728 (+0.2%)
16VANGUARD PORTFOLIO MANAGEMENT LLC362,6830.80%$13.7M+26,844 (+8.0%)
17TWO SIGMA INVESTMENTS, LP350,0810.77%$13.2M+143,127 (+69.2%)
18MORGAN STANLEY301,0940.67%$11.3M+19,103 (+6.8%)
19NORTHERN TRUST CORP295,9000.65%$11.1M+29,488 (+11.1%)
20CHARLES SCHWAB INVESTMENT MANAGEMENT INC269,0670.60%$10.1M+620 (+0.2%)
21MILLENNIUM MANAGEMENT LLC250,5930.55%$9.4M-37,071 (-12.9%)
22ARROWSTREET CAPITAL, LIMITED PARTNERSHIP245,2800.54%$9.2M+173,091 (+239.8%)
23ENDEAVOUR CAPITAL ADVISORS INC238,6710.53%$9.0M+58,029 (+32.1%)
24Qube Research & Technologies Ltd219,1680.49%$8.3M-122,359 (-35.8%)
25Empowered Funds, LLC213,2530.47%$8.0M+10,728 (+5.3%)
26GOLDMAN SACHS GROUP INC212,5510.47%$8.0M-86,890 (-29.0%)
27VANGUARD FIDUCIARY TRUST CO210,9660.47%$7.9M+4,055 (+2.0%)
28Detalus Advisors, LLC196,0500.43%$7.4M-3,724 (-1.9%)
29DENALI ADVISORS LLC185,5160.41%$7.0M+18,100 (+10.8%)
30FMR LLC182,3550.40%$6.9M-643,714 (-77.9%)
31Bank of New York Mellon Corp167,1300.37%$6.3M+3,786 (+2.3%)
32Creative Planning163,4670.36%$6.2M+20,291 (+14.2%)
33Thrivent Financial for Lutherans157,0910.35%$5.9M+67,862 (+76.1%)
34BANK OF AMERICA CORP /DE/151,4070.34%$5.7M+15,571 (+11.5%)
35Curi Capital, LLC143,0420.32%$5.4M-1,216 (-0.8%)
36ZACKS INVESTMENT MANAGEMENT139,6410.31%$5.3M+8,636 (+6.6%)
37Mariner, LLC137,1920.30%$5.2M+8,163 (+6.3%)
38BARTLETT & CO. WEALTH MANAGEMENT LLC134,1580.30%$5.1M—
39MALTESE CAPITAL MANAGEMENT LLC130,0000.29%$4.9M-90,615 (-41.1%)
40MENDON CAPITAL ADVISORS CORP125,0000.28%$4.7M—
41FIRST TRUST ADVISORS LP123,7760.27%$4.7M+37,267 (+43.1%)
42FRANKLIN RESOURCES INC110,9590.25%$4.2M+7,713 (+7.5%)
43FIDUCIENT ADVISORS LLC110,8500.25%$4.2M-3,422 (-3.0%)
44JACOBS LEVY EQUITY MANAGEMENT, INC106,8960.24%$4.0M-10,949 (-9.3%)
45Trexquant Investment LP98,5440.22%$3.7M-3,046 (-3.0%)
46UBS Group AG96,7430.21%$3.6M-61,692 (-38.9%)
47Point72 Asset Management, L.P.90,3040.20%$3.4M+42,414 (+88.6%)
48Man Group plc88,8270.20%$3.3M+38,213 (+75.5%)
49RENAISSANCE TECHNOLOGIES LLC80,6000.18%$3.0MNEW
50BLAIR WILLIAM & CO/IL79,9240.18%$3.0M+3,938 (+5.2%)
51CITADEL ADVISORS LLC73,9080.16%$2.8M+18,886 (+34.3%)
52TUDOR INVESTMENT CORP ET AL68,2970.15%$2.6M-52,088 (-43.3%)
53IEQ CAPITAL, LLC67,0130.15%$2.5M+455 (+0.7%)
54Swiss National Bank66,3000.15%$2.5M-1,600 (-2.4%)
55ALLIANCEBERNSTEIN L.P.61,0110.14%$1.9M-26,500 (-30.3%)
56UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC58,1330.13%$2.2M+3,145 (+5.7%)
57NEW YORK STATE COMMON RETIREMENT FUND57,3090.13%$2.2M—
58WELLS FARGO & COMPANY/MN56,8790.13%$2.1M+13,329 (+30.6%)
59AMERIPRISE FINANCIAL INC55,5620.12%$2.1M-525 (-0.9%)
60Focus Partners Wealth52,3530.12%$2.0M+701 (+1.4%)
61ALGERT GLOBAL LLC51,6000.11%$1.9MNEW
62Campbell & CO Investment Adviser LLC51,4930.11%$1.9M+29,425 (+133.3%)
63PRINCIPAL FINANCIAL GROUP INC49,6930.11%$1.9M+3,263 (+7.0%)
64Invesco Ltd.47,6100.11%$1.8M-4,422 (-8.5%)
65Cambridge Investment Research Advisors, Inc.46,9040.10%$1.8M+23,386 (+99.4%)
66RHUMBLINE ADVISERS45,3190.10%$1.7M+2,600 (+6.1%)
67BNP PARIBAS FINANCIAL MARKETS40,3270.09%$1.5M+9,040 (+28.9%)
68PRUDENTIAL FINANCIAL INC39,6050.09%$1.5M-4,090 (-9.4%)
69BARCLAYS PLC38,2050.08%$1.4M-7,442 (-16.3%)
70CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM32,4920.07%$1.2M+1,198 (+3.8%)
71XTX Topco Ltd31,9990.07%$1.2M+19,515 (+156.3%)
72QUATTRO FINANCIAL ADVISORS LLC30,0000.07%$1.1M—
73DEUTSCHE BANK AG\29,8580.07%$1.1M-15 (-0.1%)
74CITIGROUP INC29,1440.06%$1.1M+4,096 (+16.4%)
75WEDGE CAPITAL MANAGEMENT L L P/NC28,8680.06%$1.1M-631 (-2.1%)
76Russell Investments Group, Ltd.28,2400.06%$1.1M+23,429 (+487.0%)
77Quantinno Capital Management LP28,1530.06%$1.1M+8,757 (+45.1%)
78SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC28,0530.06%$1.1M+2,900 (+11.5%)
79PDT Partners, LLC27,3150.06%$1.0M—
80HSBC HOLDINGS PLC26,7580.06%$1.0M-18,058 (-40.3%)
81CANADA PENSION PLAN INVESTMENT BOARD26,0000.06%$979K—
82PRICE T ROWE ASSOCIATES INC /MD/25,8130.06%$973K+2,844 (+12.4%)
83TEACHER RETIREMENT SYSTEM OF TEXAS24,9080.06%$938K+2,462 (+11.0%)
84Legal & General Group Plc24,7700.05%$933K+238 (+1.0%)
85DARK FOREST CAPITAL MANAGEMENT LP23,5610.05%$887K+11,073 (+88.7%)
86VANGUARD ASSET MANAGEMENT, Ltd22,2990.05%$840K—
87MERCER GLOBAL ADVISORS INC /ADV22,2170.05%$837K+6,267 (+39.3%)
88ACADIAN ASSET MANAGEMENT LLC20,9810.05%$789KNEW
89WEALTH ENHANCEMENT ADVISORY SERVICES, LLC19,8600.04%$740K+4,179 (+26.7%)
90D. E. Shaw & Co., Inc.19,7980.04%$746KNEW
91Vanguard Global Advisers, LLC19,7150.04%$742K—
92BANC FUNDS CO LLC19,6820.04%$741K-14,475 (-42.4%)
93MetLife Investment Management, LLC18,6380.04%$702K+165 (+0.9%)
94Quantbot Technologies LP18,3480.04%$691KNEW
95SUSQUEHANNA INTERNATIONAL GROUP, LLP18,0810.04%$681K-32,135 (-64.0%)
96Inspire Investing, LLC18,0560.04%$680K+1,919 (+11.9%)
97PNC Financial Services Group, Inc.17,3270.04%$653K-88 (-0.5%)
98Brevan Howard Capital Management LP17,1800.04%$647KNEW
99PRINCETON CAPITAL MANAGEMENT LLC17,0740.04%$643K+587 (+3.6%)
100Sequoia Financial Advisors, LLC16,6540.04%$627KNEW
101ALPS ADVISORS INC16,4370.04%$619K+197 (+1.2%)
102STRS OHIO16,4000.04%$618K+4,700 (+40.2%)
103Capstone Financial Advisors, Inc.16,0400.04%$604K—
104Aquatic Capital Management LLC15,4780.03%$583K+13,799 (+821.9%)
105Mitsubishi UFJ Trust & Banking Corp15,3290.03%$577KNEW
106MANUFACTURERS LIFE INSURANCE COMPANY, THE14,8700.03%$560K-662 (-4.3%)
107Rafferty Asset Management, LLC14,5350.03%$547K-7,989 (-35.5%)
108MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.14,2870.03%$538K-194 (-1.3%)
109Jackson Creek Investment Advisors LLC14,0350.03%$551K-44 (-0.3%)
110EntryPoint Capital, LLC13,9570.03%$526K—
111Engineers Gate Manager LP13,8000.03%$520K-17,506 (-55.9%)
112Balyasny Asset Management L.P.13,2060.03%$497K-1,442 (-9.8%)
113DEARBORN PARTNERS LLC12,7800.03%$442K+6,390 (+100.0%)
114Zurcher Kantonalbank (Zurich Cantonalbank)12,1050.03%$456K-1,505 (-11.1%)
115Schonfeld Strategic Advisors LLC12,0280.03%$453KNEW
116SG Americas Securities, LLC11,6740.03%$440K-5,314 (-31.3%)
117MOSAIC FINANCIAL GROUP, LLC11,3250.03%$426K—
118Abacus Wealth Partners, LLC11,1790.02%$421K-9,914 (-47.0%)
119PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO11,0950.02%$418K—
120Cerity Partners LLC10,6490.02%$401K+2,338 (+28.1%)
121ZEVIN ASSET MANAGEMENT LLC10,6240.02%$400K—
122VIRTUS ADVISERS, LLC10,4350.02%$393K+256 (+2.5%)
123Jupiter Topco LLC10,3470.02%$390KNEW
124OCCUDO QUANTITATIVE STRATEGIES LP10,2000.02%$384KNEW
125Hillsdale Investment Management Inc.10,1700.02%$383KNEW
126BNP PARIBAS ASSET MANAGEMENT Holding S.A.10,1450.02%$382K-66 (-0.6%)
127Chicago Partners Investment Group LLC9,8310.02%$370K+1,272 (+14.9%)
128Police & Firemen's Retirement System of New Jersey9,5540.02%$360K+1,228 (+14.7%)
129MARTINGALE ASSET MANAGEMENT L P9,4220.02%$355KNEW
130Sterling Capital Management LLC9,2780.02%$349K-399 (-4.1%)
131TD Asset Management Inc9,2020.02%$347KNEW
132CIBC Bancorp USA Inc.9,1250.02%$344K+157 (+1.8%)
133ARIZONA STATE RETIREMENT SYSTEM9,1200.02%$343K-328 (-3.5%)
134FIFTH THIRD BANCORP9,0530.02%$341K+48 (+0.5%)
135HighTower Advisors, LLC8,9870.02%$338K-5,977 (-39.9%)
136Jain Global LLC8,6320.02%$325KNEW
137DRW Securities, LLC8,0070.02%$302KNEW
138CAPTRUST FINANCIAL ADVISORS8,0040.02%$301KNEW
139FIRST AMERICAN BANK7,9320.02%$299K—
140KLP KAPITALFORVALTNING AS7,8000.02%$294K—
141Swiss Life Asset Management Ltd7,2950.02%$275KNEW
142Oceanside Advisors LLC7,1000.02%$267K—
143STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM7,0740.02%$266K—
144Cornerstone Investment Partners, LLC7,0330.02%$265K-333 (-4.5%)
145Vanguard Investments Australia, Ltd.6,6740.01%$251K—
146VOYA INVESTMENT MANAGEMENT LLC6,4520.01%$243KNEW
147ENVESTNET ASSET MANAGEMENT INC6,4070.01%$241KNEW
148QUADRANT CAPITAL GROUP LLC6,3960.01%$241K+28 (+0.4%)
149Cresset Asset Management, LLC6,3900.01%$241K—
150Squarepoint Ops LLC6,2660.01%$236KNEW
151Corient Private Wealth LP6,1990.01%$233KNEW
152INTECH INVESTMENT MANAGEMENT LLC6,1570.01%$232K-1,890 (-23.5%)
153BRIGHTON JONES LLC5,7180.01%$215KNEW
154Pictet Asset Management Holding SA5,4500.01%$205KNEW
155LSV ASSET MANAGEMENT5,0000.01%$188K—
156Arax Advisory Partners4,4120.01%$166K+4,337 (+5782.7%)
157GLOBEFLEX CAPITAL L P4,0950.01%$154K—
158CANADA LIFE ASSURANCE Co4,0120.01%$151K—
159State of Tennessee, Department of Treasury3,8840.01%$146KNEW
160Parkside Financial Bank & Trust3,1060.01%$117K-84 (-2.6%)
161NEW YORK STATE TEACHERS RETIREMENT SYSTEM2,8640.01%$108K—
162Farther Finance Advisors, LLC2,6850.01%$101K-266 (-9.0%)
163Ameritas Investment Partners, Inc.2,6200.01%$99K—
164NISA INVESTMENT ADVISORS, LLC2,5590.01%$96K+2,515 (+5715.9%)
165Amova Asset Management Americas, Inc.1,9660.00%$74KNEW
166Cullen/Frost Bankers, Inc.1,8130.00%$68K+277 (+18.0%)
167State of Alaska, Department of Revenue1,6760.00%$63K—
168Allworth Financial LP1,6170.00%$61K+491 (+43.6%)
169ROYAL BANK OF CANADA1,5900.00%$60K-742 (-31.8%)
170Tower Research Capital LLC (TRC)1,2630.00%$48K-354 (-21.9%)
171EverSource Wealth Advisors, LLC8400.00%$32K-477 (-36.2%)
172US BANCORP \DE\7310.00%$28K+202 (+38.2%)
173JONES FINANCIAL COMPANIES LLLP7210.00%$27K+55 (+8.3%)
174HARBOR CAPITAL ADVISORS, INC.6920.00%$26K-311 (-31.0%)
175Essential Partners LLC6040.00%$23K-592 (-49.5%)
176IFP Advisors, Inc5110.00%$19K+83 (+19.4%)
177Smartleaf Asset Management LLC4870.00%$18K—
178GAMMA Investing LLC4620.00%$17K+29 (+6.7%)
179ROTHSCHILD INVESTMENT LLC3690.00%$14K+83 (+29.0%)
180Pinnacle Wealth Planning Services, Inc.1870.00%$7K—
181Clearstead Advisors, LLC1780.00%$7KNEW
182Basecamp Wealth Advisors LLC1700.00%$6K+21 (+14.1%)
183HUNTINGTON NATIONAL BANK1540.00%$6K—
184Parallel Advisors, LLC1540.00%$6K+19 (+14.1%)
185LOS ANGELES CAPITAL MANAGEMENT LLC1460.00%$5K—
186Optiver Holding B.V.1330.00%$5K+7 (+5.6%)
187ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/1150.00%$4K+18 (+18.6%)
188Continuum Advisory, LLC1070.00%$4KNEW
189SIGNATUREFD, LLC1040.00%$4K—
190True Wealth Design, LLC960.00%$4K-22 (-18.6%)
191PICTON MAHONEY ASSET MANAGEMENT940.00%$4KNEW
192Versant Capital Management, Inc720.00%$3K—
193GFS Advisors, LLC550.00%$76.8MNEW
194SJS Investment Consulting Inc.550.00%$2K+37 (+205.6%)
195Bogart Wealth, LLC500.00%$2KNEW
196Transamerica Financial Advisors, LLC350.00%$1KNEW
197OSAIC HOLDINGS, INC.350.00%$1K-3 (-7.9%)
198Bruce G. Allen Investments, LLC340.00%$1K—
199Bare Financial Services, Inc340.00%$1K—
200Steward Partners Investment Advisory, LLC290.00%$1KNEW
201Trust Co210.00%$791—
202Fortitude Family Office, LLC200.00%$753NEW
203Physician Wealth Advisors, Inc.190.00%$716-46 (-70.8%)
204MassMutual Private Wealth & Trust, FSB160.00%$603—
205Covestor Ltd150.00%$1K-280 (-94.9%)
206JPL Wealth Management, LLC150.00%$565-1 (-6.3%)
207Wealth Enhancement Trust Services, Inc.130.00%$490NEW
208Caitong International Asset Management Co., Ltd50.00%$188-7 (-58.3%)
Exited since 2026-03-31 (15 filers; largest 15 shown)
Aristotle Capital Boston, LLC−674,784
Assenagon Asset Management S.A.−227,317
SEI INVESTMENTS CO−129,589
CWM, LLC−27,279
Y-Intercept (Hong Kong) Ltd−23,323
JANUS HENDERSON GROUP PLC−19,547
JANE STREET GROUP, LLC−10,731
Aigen Investment Management, LP−10,115
MQS Management LLC−7,392
SIGNET FINANCIAL MANAGEMENT, LLC−6,635
Advisory Services Network, LLC−1,095
MAI Capital Management−382
MEEDER ASSET MANAGEMENT INC−308
Root Financial Partners, LLC−36
Sunbelt Securities, Inc.−5

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting personFormFiledEventShares% of class
ANTONIO DEL VALLE PEROCHENASCHEDULE 13G/A2026-08-172026-08-0711,575,95325.6%
MBG INVESTORS I, LPSCHEDULE 13G/A2026-08-172026-08-0711,535,14525.5%
BlackRock, Inc.SCHEDULE 13G2025-10-172025-09-302,300,3355.02%
Dimensional Fund Advisors LPSCHEDULE 13G2025-10-092025-09-302,322,3395.1%
Estate of Daniel L. GoodwinSCHEDULE 13G/A2025-07-072025-06-3013,6130%
Antonio del Valle PerochenaSCHEDULE 13G/A2025-02-132025-02-1211,835,14526.7%
MBG Investors I, L.P.SCHEDULE 13G/A2025-02-132025-02-1211,835,14526.7%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.