BYLINE BANCORP, INC. — Director's Dealing 2018

Feb 7, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BYLINE BANCORP, INC. (BY)
CIK: 0001702750
Period of Report: 2017-10-03

Reporting Person: Meyer Donald J (EVP OF COMM. BANKING)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-05	Common Stock	M	27500	$11.18	Acquired	32500	Direct
2018-02-05	Common Stock	S	27500	$22.10	Disposed	5000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-10-03	Stock Option	$11.18	A	8126	Acquired	2025-03-02	Common Stock (8126)	Direct
2017-10-03	Stock Option	$11.18	A	24374	Acquired	2025-03-02	Common Stock (24374)	Direct
2018-02-05	Stock Option	$11.18	M	6499	Disposed	2025-03-02	Common Stock (6499)	Direct
2018-02-05	Stock Option	$11.18	M	19499	Disposed	2025-03-02	Common Stock (19499)	Direct
2018-02-05	Stock Option	$11.18	M	1502	Disposed	2025-03-02	Common Stock (1502)	Direct

Footnotes

F1: Price reflects the weighted average sale price for the shares, which were sold in multiple transactions at prices that ranged from $21.75 to $22.47. Upon request of the SEC staff, the issuer or a security holder of the issuer, the reporting person will provide information regarding the number of shares sold at each separate price.

F2: Reflects the performance vesting of the remaining unvested portion of a stock option grant awarded to the reporting person on March 2, 2015. 20% of these earned options remain subject to time vesting and will vest on June 28, 2018, subject to continued service with the issuer.

F3: Reflects performance vesting of a stock option grant awarded to the reporting person on March 2, 2015. 20% of these earned options remain subject to time vesting and will vest on June 28, 2018, subject to continued service with the issuer

F4: The options exercised were vested and currently exercisable.