Byline Bancorp Ownership | Who Owns Byline Bancorp?

Overview Forecast RevenueFinancials Chart Transcripts

Byline Bancorp Ownership Summary

Byline Bancorp is owned by 55.82% institutional investors, 28.80% insiders, and 15.38% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.35% 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	55.82%	28.80%	15.38%
Sector	Financial Services Stocks	37.05%	15.59%	47.36%
Industry	Regional Banks Stocks	38.44%	12.57%	48.99%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	3.29M	7.35%	$104.02M
Blackrock	2.90M	6.70%	$68.80M
Dimensional fund advisors lp	2.37M	5.28%	$74.71M
Vanguard group	1.82M	4.07%	$53.13M
State street	1.03M	2.30%	$32.55M
Wellington management group llp	1.02M	2.28%	$32.33M
Boston partners	918.45K	2.05%	$29.07M
American century companies	905.19K	2.02%	$28.58M
Fmr	826.07K	1.84%	$26.08M
Geode capital management	788.03K	1.76%	$24.88M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ararat capital management lp	623.77K	11.09%	$19.69M
Mendon capital advisors	125.00K	1.53%	$3.95M
Detalus advisors	199.77K	1.44%	$6.31M
Maltese capital management	220.62K	1.37%	$6.96M
Aristotle capital boston	674.78K	1.32%	$21.30M
Endeavour capital advisors	180.64K	1.29%	$5.70M
Denali advisors	167.42K	0.59%	$5.29M
Fiducient advisors	114.27K	0.47%	$3.61M
Quattro financial advisors	30.00K	0.29%	$947.10K
Bridgeway capital management	423.52K	0.27%	$13.37M

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	2.90M	0.00%	596.15K
Assenagon asset management	227.32K	0.01%	227.32K
Boston partners	918.45K	0.03%	211.71K
Vanguard fiduciary trust	206.91K	0.00%	206.91K
Aqr capital management	665.39K	0.01%	160.44K

Top Sellers

Holder	Shares	% Assets	Change
Next century growth investors	-	-	-247.81K
Wellington management group llp	1.02M	0.01%	-170.05K
Fmr	826.07K	0.00%	-129.65K
Aristotle capital boston	674.78K	1.32%	-126.44K
Renaissance	-	-	-111.60K

New Positions

Holder	Shares	% Assets	Change	Value
Assenagon asset management	227.32K	0.01%	227.32K	$7.18M
Vanguard fiduciary trust	206.91K	0.00%	206.91K	$6.53M
Zacks investment management	131.00K	0.03%	131.00K	$4.14M
Man group	50.61K	0.00%	50.61K	$1.60M
Principal financial group	46.43K	0.00%	46.43K	$1.47M

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-4.00
Bokf, na	-12.00
Stephens consulting	-15.00
Bessemer group	-19.00
Riverview trust	-36.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	186	5.08%	25,025,973	1.90%	55	1.86%	96	1.05%	55	-8.33%
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%

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%	-
Avantis US Small Cap Value ETF	760.68K	1.68%	-
iShares Russell 2000 ETF	747.68K	1.65%	6.30K
DFA US Small Cap Value I	506.62K	1.11%	3.52K
FIAM Small Cap Core CIT Cl B	491.90K	1.08%	-
FIAM Small Cap Core Composite	491.90K	1.08%	-7.90K
Federated Hermes MDT SCC Institutional	457.95K	1.01%	18.51K
Federated Hermes MDT Small Cap Core IS	457.95K	1.01%	18.51K
Vanguard Institutional Extnd Mkt Idx Tr	369.34K	0.81%	2.41K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 04, 2026	KISTNER WILLIAM G	-	Buy	$3.20K
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

Insider Transactions Trends

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

BY Ownership FAQ

Who Owns Byline Bancorp?

Byline Bancorp shareholders are primarily institutional investors at 55.82%, followed by 28.80% insiders and 15.38% retail investors. The average institutional ownership in Byline Bancorp's industry, Regional Banks Stocks, is 38.44%, which Byline Bancorp exceeds.

Who owns the most shares of Byline Bancorp?

Byline Bancorp’s largest shareholders are Blackrock funding, inc. /de (3.29M shares, 7.35%), Blackrock (2.9M shares, 6.70%), and Dimensional fund advisors lp (2.37M shares, 5.28%). Together, they hold 19.33% 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 11.09% of its assets in 623.77K Byline Bancorp shares, valued at 19.69M$.

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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