Byline Bancorp Ownership | Who Owns Byline Bancorp?

Overview Forecast RevenueFinancials Chart Transcripts

Byline Bancorp Ownership Summary

Byline Bancorp is owned by 34.12% institutional investors, 28.43% insiders, and 37.46% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.32% of BY shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.90% of its assets in Byline Bancorp shares.

BY Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Byline Bancorp	34.12%	28.43%	37.46%
Sector	Financial Services Stocks	32.19%	15.44%	52.37%
Industry	Regional Banks Stocks	31.54%	12.70%	55.76%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	3.28M	7.32%	$95.65M
Blackrock	2.90M	6.70%	$68.80M
Dimensional fund advisors lp	2.33M	5.20%	$67.92M
Vanguard group	1.82M	4.07%	$53.13M
Wellington management group llp	1.24M	2.82%	$34.28M
State street	988.05K	2.26%	$27.40M
Fmr	972.07K	2.22%	$26.96M
Aristotle capital boston	886.32K	2.02%	$24.58M
American century companies	803.29K	1.83%	$22.28M
Geode capital management	764.14K	1.70%	$22.28M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ararat capital management lp	679.12K	10.10%	$18.83M
Detalus advisors	204.55K	1.45%	$5.96M
Mendon capital advisors	125.00K	1.33%	$3.47M
Aristotle capital boston	886.32K	1.27%	$24.58M
Endeavour capital advisors	155.14K	1.26%	$4.52M
Maltese capital management	215.00K	0.90%	$5.96M
Denali advisors	125.75K	0.41%	$3.67M
Fiducient advisors	81.77K	0.30%	$2.38M
Bridgeway capital management	469.98K	0.28%	$13.03M
Quattro financial advisors	30.00K	0.26%	$874.50K

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	2.90M	0.00%	596.15K
Blackrock funding, inc. /de	3.28M	0.00%	434.36K
Morgan stanley	341.64K	0.00%	161.53K
State street	988.05K	0.00%	158.36K
Qube research	358.54K	0.01%	129.03K

Top Sellers

Holder	Shares	% Assets	Change
Wellington management group llp	1.24M	0.01%	-487.65K
Next century growth investors	-	-	-247.81K
Assenagon asset management	-	-	-140.63K
Ararat capital management lp	679.12K	10.10%	-106.08K
Alyeska investment group	-	-	-100.00K

New Positions

Holder	Shares	% Assets	Change	Value
Y-intercept (hong kong)	36.01K	0.02%	36.01K	$1.05M
Hsbc	29.89K	0.00%	29.89K	$824.34K
Abacus wealth partners	20.32K	0.06%	20.32K	$592.40K
Mercer global advisors inc /adv	15.75K	0.00%	15.75K	$436.72K
Quantinno capital management lp	14.98K	0.00%	14.98K	$415.42K

Sold Out

Holder	Change
Caitong asset management	-3.00
Nelson, van denburg & campbell wealth management group	-4.00
Bokf, na	-12.00
Stephens consulting	-15.00
Versant capital management	-15.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	112	-35.63%	15,294,778	-37.21%	34	1.10%	65	-38.10%	31	-31.11%
Sep 30, 2025	165	3.13%	24,183,836	4.98%	55	2.00%	101	5.21%	43	4.88%
Jun 30, 2025	166	12.16%	23,889,884	18.35%	54	2.57%	101	53.03%	42	-22.22%
Mar 31, 2025	147	4.26%	20,172,583	0.69%	46	2.17%	66	-12.00%	53	39.47%
Dec 31, 2024	58	-58.27%	6,667,903	-65.34%	15	0.78%	29	-62.34%	13	-68.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	863.63K	1.90%	-
Vanguard US Total Market Shares ETF	779.78K	1.75%	-
iShares Russell 2000 ETF	776.07K	1.70%	226.67K
Avantis US Small Cap Value ETF	720.46K	1.58%	1.53K
FIAM Small Cap Core Composite	499.80K	1.10%	-52.30K
DFA US Small Cap Value I	499.44K	1.10%	-
FIAM Small Cap Core CIT Cl B	491.90K	1.08%	-7.90K
Federated Hermes MDT Small Cap Core IS	439.44K	0.96%	-
Federated Hermes MDT SCC Institutional	439.44K	0.96%	-
CREF Total Global Stock Account R3	384.35K	0.84%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 16, 2026	HERSETH MARY JO S.	-	Buy	$9.25K
Feb 26, 2026	Barkidjija John	HEAD OF CRE & SPECIALTY FIN	Sell	$145.78K
Feb 17, 2026	Doran Brian F	General Counsel	Buy	$24.85K
Jan 28, 2026	CABRERA PHILLIP R.	-	Buy	$5.24K
Oct 28, 2025	ABRAHAM THOMAS	PRESIDENT, SBC	Sell	$537.43K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	3	1
2025 Q4	1	2
2025 Q3	1	2
2025 Q2	6	2
2025 Q1	2	2

BY Ownership FAQ

Who Owns Byline Bancorp?

Byline Bancorp shareholders are primarily institutional investors at 34.12%, followed by 28.43% insiders and 37.45% retail investors. The average institutional ownership in Byline Bancorp's industry, Regional Banks Stocks, is 31.54%, which Byline Bancorp exceeds.

Who owns the most shares of Byline Bancorp?

Byline Bancorp’s largest shareholders are Blackrock funding, inc. /de (3.28M shares, 7.32%), Blackrock (2.9M shares, 6.70%), and Dimensional fund advisors lp (2.33M shares, 5.20%). Together, they hold 19.22% of Byline Bancorp’s total shares outstanding.

Does Blackrock own Byline Bancorp?

Yes, BlackRock owns 6.70% of Byline Bancorp, totaling 2.9M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 68.8M$. In the last quarter, BlackRock increased its holdings by 596.15K shares, a 25.90% change.

Who is Byline Bancorp’s biggest shareholder by percentage of total assets invested?

Ararat capital management lp is Byline Bancorp’s biggest shareholder by percentage of total assets invested, with 10.10% of its assets in 679.12K Byline Bancorp shares, valued at 18.83M$.

Who is the top mutual fund holder of Byline Bancorp shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Byline Bancorp shares, with 1.90% of its total shares outstanding invested in 863.63K Byline Bancorp shares.

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