Byline Bancorp Ownership & Insider Activity

Byline Bancorp (BY) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 2.8% of shares outstanding. Institutional investors hold 44.1%. Over the past 90 days, insiders made 3 purchases worth $60K and 3 sales worth $1.5M.

Shares Outstanding

44.675M

Shares Float

19.593M

Insider Shares Owned

1.247M

Insider % Owned

2.8%

Institutional Shares Held

19.717M

Institutional % Held

44.1%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

$60K total

Sales (90d)

$1.5M total

Net Activity

Net Selling

Net Value (90d)

-$1.4M

Byline Bancorp Insider Transactions (Last 6 Months)

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Date	Insider	Title	Type	Shares	Price	Value
Oct 29, 2026	Brogan Ptacin	HEAD OF COMMERCIAL BANKING	SELL	16.100K	$38.92	$627K
Oct 26, 2026	Pamela Stewart	—	BUY	1.160K	$38.61	$45K
Aug 19, 2026	WILLIAM KISTNER	—	BUY	100.000	$38.30	$4K
Aug 19, 2026	JO MARY HERSETH	—	BUY	300.000	$38.40	$12K
Aug 13, 2026	ROBERTO HERENCIA	CHIEF EXECUTIVE OFFICER	SELL	19.750K	$39.21	$774K
Aug 12, 2026	Dana Rose	CHIEF HUMAN RESOURCES OFFICER	SELL	2.421K	$39.00	$94K
Aug 7, 2026	MBG INVESTORS I LP	—	SELL	300.000K	$39.10	$11.7M
Aug 7, 2026	ANTONIO PEROCHENA VALLE DEL	—	SELL	300.000K	$39.10	$11.7M

Byline Bancorp Inc

Byline Bancorp Ownership & Insider Activity

Byline Bancorp Insider Transactions (Last 6 Months)

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