Byline Bancorp, Inc.

Exchange: NYSE
Industry: State Commercial Banks
SEC CIK: 0001702750

SEC filings (opens in a new tab)

In the last 90 days, Byline Bancorp, Inc. insiders filed 2 open-market purchases and 3 sales; 208 institutions reported holding it in 13F filings for Q2 2026, worth $938.6M in total; no superinvestor holds it.

Q2 2026 vs. Q1 2026

How the institutions holding Byline Bancorp, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of BY: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	188	4	208	+24
Shares	25.0M	53.5K	24.9M	−39.1K (−0.2%)
Value	$789.9M	$1.69M	$938.6M	+$150.4M (+19.1%)

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (35)

Institutions that held Byline Bancorp, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to BY in Q2 2026
Institution	Shares	Value	% of portfolio
Renaissance Technologies LLC	80,600	$3.04M	0.00%
Algert Global LLC	51,600	$1.94M	0.02%
Acadian Asset Management LLC	20,981	$789.0K	0.00%
D. E. Shaw & Co., Inc.	19,798	$745.6K	0.00%
Quantbot Technologies LP	18,348	$691.0K	0.03%
Brevan Howard Capital Management LP	17,180	$647.0K	0.01%
Sequoia Financial Advisors, LLC	16,654	$627.2K	0.00%
Mitsubishi UFJ Trust & Banking Corp	15,329	$577.3K	0.00%
Schonfeld Strategic Advisors LLC	12,028	$453.0K	0.00%
Jupiter Topco LLC	10,347	$389.8K	0.00%
Occudo Quantitative Strategies LP	10,200	$384.1K	0.02%
Hillsdale Investment Management Inc.	10,170	$383.0K	0.01%
Martingale Asset Management L P	9,422	$354.8K	0.01%
TD Asset Management Inc	9,202	$346.5K	0.00%
Jain Global LLC	8,632	$325.1K	0.00%
DRW Securities, LLC	8,007	$301.5K	0.02%
Captrust Financial Advisors	8,004	$301.4K	0.00%
Swiss Life Asset Management Ltd	7,295	$274.7K	0.00%
Voya Investment Management LLC	6,452	$243.0K	0.00%
Envestnet Asset Management Inc	6,407	$241.3K	0.00%
Squarepoint Ops LLC	6,266	$236.0K	0.00%
CI Private Wealth, LLC	6,199	$233.5K	0.00%
Brighton Jones LLC	5,718	$215.3K	0.00%
Pictet Asset Management Holding SA	5,450	$205.2K	0.00%
State of Tennessee, Treasury Department	3,884	$146.3K	0.00%
Nikko Asset Management Americas, Inc.	1,966	$74.0K	0.00%
Clearstead Advisors, LLC	178	$6.71K	0.00%
Continuum Advisory, LLC	107	$4.03K	0.00%
Picton Mahoney Asset Management	94	$3.54K	0.00%
Bogart Wealth, LLC	50	$1.88K	0.00%
Transamerica Financial Advisors, Inc.	35	$1.33K	0.00%
Steward Partners Investment Advisory, LLC	29	$1.09K	0.00%
Fortitude Family Office, LLC	20	$753	0.00%
Wealth Enhancement Trust Services, Inc.	13	$490	0.00%
GFS Advisors, LLC	55	–	–

Sold out (11)

Institutions that held Byline Bancorp, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of BY in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Aristotle Capital Boston, LLC	674,784	$21.3M
Assenagon Asset Management S.A.	227,317	$7.18M
SEI Investments Co	129,589	$4.09M
Y-Intercept (Hong Kong) Ltd	23,323	$736.3K
Jane Street Group, LLC	10,731	$338.8K
Aigen Investment Management, LP	10,115	$319.3K
MQS Management LLC	7,392	$233.4K
Advisory Services Network, LLC	1,095	$34.6K
MAI Capital Management	382	$12.1K
Meeder Asset Management Inc	308	$9.72K
Root Financial Partners, LLC	36	$1.14K

Not filed for Q2 2026 yet (4)

Institutions that held Byline Bancorp, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding BY in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
CWM, LLC	27,279	$861.2K
Janus Henderson Group PLC	19,547	$618.0K
Signet Financial Management, LLC	6,635	$209.5K
Sunbelt Securities, Inc.	5	$158