Notice of Annual Meeting of Stockholders of Byline Bancorp, Inc.

~~Date and Time~~
~~June 8, 2021, at 8:30 a.m. CDT~~

~~Place~~
~~Virtually at~~
~~www.virtualshareholdermeeting.com/BY2021~~

~~Record Date~~
~~April 14, 2021~~

Only those stockholders of record as of the close of business on that date will be entitled to vote at the Annual Meeting. If there is an insufficient number of shares represented for a quorum, the meeting may be adjourned to permit further solicitation of proxies by the Company.

Date and Time

June 7, 2022, at 8:30 a.m. CDT

Place

Virtually at

www.virtualshareholdermeeting.com/BY2022

Record Date

April 13, 2022

Items of Business

To elect the eight director nominees named in the accompanying proxy statement to the Board of Directors of the Company, each to serve until the ~~2022~~2023 Annual Meeting of Stockholders or until their successors are duly elected and qualified;

To approve an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan;

To ratify the appointment of Moss Adams LLP as the ~~Company's~~Company’s independent registered public accounting firm for the fiscal year ending December 31, ~~2021;~~2022; and

To consider such other business that may properly come before the Annual Meeting, or any adjournment thereof, by or at the direction of the Board of Directors.

Every Vote is Important

~~Every Vote is Important~~

Internet

~~Internet~~
Visit the website noted on your proxy card to vote online.

Telephone

Use the toll-free telephone number on your proxy card to vote by telephone.

Vote by Mail

Sign, date, and return your proxy card in the enclosed envelope to vote by mail.

A list of stockholders entitled to vote at the meeting will be available for inspection at the ~~Company's~~Company’s main office located at 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601 for a period of ten days prior to the Annual Meeting and will also be made available virtually at the Annual Meeting itself for examination by any stockholder upon request.

We are taking advantage of the Securities and Exchange ~~Commission's~~Commission’s rules that allow companies to furnish proxy materials to stockholders via the Internet. We sent a Notice of Internet Availability of Proxy Materials to holders of our common stock as of the record date on or about April ~~26, 2021.~~25, 2022. The Notice describes how you can access our proxy materials, including this proxy statement, beginning on April ~~26, 2021.~~

25, 2022.

WHETHER OR NOT YOU EXPECT TO ATTEND THE ANNUAL MEETING, PLEASE SUBMIT YOUR PROXY WITH VOTING INSTRUCTIONS. YOU MAY VOTE BY TELEPHONE, VIA THE INTERNET OR BY MAIL.


	BY ORDER OF THE BOARD OF DIRECTORS,
	By
		By
Chicago, Illinois April ~~26, 2021~~25, 2022		Roberto R. Herencia ~~Roberto Herencia~~ Executive Chairman of the Board and Chief Executive Officer

~~Table of Contents~~

TABLE OF CONTENTS


	Page
About the Meeting		2
Stock Ownership		5
Delinquent Section 16(a) Reports		6
Proposal 1: Election of Directors		7
Corporate Governance		12
Human Capital and Social Responsibility		19
Director Compensation		2223
Proposal 2: To approve an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan		26
Proposal 3: Ratification of Independent Registered Public Accounting Firm	25	29
Report of the Audit Committee		2731
Executive ~~Officers~~ Compensation		2832
~~Executive Compensation~~	29
Certain Relationships and Related Transactions		3943
Stockholder Proposals		4044
Delivery of Documents to Stockholders Sharing an Address		4145
Other Matters	41		45

~~Table of Contents~~TABLE OF CONTENTS

PROXY STATEMENT
FOR THE ~~2021~~2022 ANNUAL MEETING OF STOCKHOLDERS
TO BE HELD ON JUNE ~~8, 2021~~

7, 2022

The enclosed proxy is solicited on behalf of the board of directors (the ~~"Board~~“Board of ~~Directors"~~Directors” or the ~~"Board"~~“Board”) of Byline Bancorp, Inc., a Delaware corporation (the ~~"Company"~~“Company” or “Byline Bancorp”), which is a registered bank holding company that owns and operates Byline Bank (the ~~"Bank"~~“Bank”), for use at the ~~2021~~2022 Annual Meeting of Stockholders (the ~~"Annual Meeting"~~“Annual Meeting”) to be held virtually on June ~~8, 2021~~7, 2022 at 8:30 a.m. Central Daylight Time. This proxy statement (this ~~"Proxy Statement"~~“Proxy Statement”), together with the Notice of Annual Meeting and proxy card, is first being made available to stockholders on or about April ~~26, 2021.~~

25, 2022.

Unless we state otherwise or the context otherwise requires, references in this Proxy Statement to ~~"Byline," "we," "our," "us," "ourselves," "the company"~~“Byline,” “we,” “our,” “us,” “ourselves,” “the company” and ~~"the Company"~~“the Company” refer to Byline Bancorp, Inc., and its consolidated subsidiaries.

Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to be Held on June ~~8, 2021~~

7, 2022

Pursuant to rules of the Securities and Exchange Commission (the ~~"SEC"~~“SEC”), we have elected to provide access to our proxy materials via the Internet. Accordingly, we sent a Notice of Internet Availability of Proxy Materials (the ~~"Notice"~~“Notice”) to our stockholders. The Notice provides stockholders with instructions on how to access and review this Proxy Statement and our ~~2020~~2021 Annual Report online, as well as vote online. We, like many public companies, have determined that providing proxy materials electronically significantly reduces our printing and mailing costs associated with the distribution of printed copies of our proxy materials to our stockholders.

Stockholders who receive the Notice will not receive a printed copy of the proxy materials by mail unless you request one. All stockholders will have the ability to access the proxy materials on the website referred to in the Notice or request to receive a printed set of the proxy materials. Instructions on how to access the proxy materials via the Internet or to request printed copies may be found within the Notice. In addition, stockholders may request to receive proxy materials in printed form by mail or electronically by email on an ongoing basis.

YOUR VOTE IS IMPORTANT

Please vote via the Internet, Telephone or Mail.

Internet:www.proxyvote.com

Phone:~~Phone:~~ 1-800-690-6903 and follow the instructions

If you are voting by mailing your proxy card, please mark, sign and date the proxy card when received and return it promptly in the self-addressed, stamped envelope that we have provided.

TABLE OF CONTENTS~~Table of Contents~~

About the Meeting

What is the date, time and place of the Annual Meeting?

Our ~~2021~~2022 Annual Meeting of Stockholders will be held on Tuesday, June ~~8, 2021,~~7, 2022, beginning at 8:30 a.m., Central Daylight Time, virtually at www.virtualshareholdermeeting.com/BY2022~~www.virtualshareholdermeeting.com/BY2021~~

What is the purpose of the Annual Meeting?

At the Annual Meeting, stockholders will act upon the matters outlined in the Notice of Meeting on the cover page of this Proxy Statement, consisting of:

(1)

the election of the eight director nominees named in this Proxy Statement to the Board of Directors, each to serve until the ~~2022~~2023 Annual Meeting of Stockholders or until their successors are duly elected and qualified;

(2)

the approval of an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan;

(3)

~~(2)~~

the ratification of the appointment of Moss Adams LLP as the ~~Company's~~Company’s independent registered public accounting firm for the fiscal year ending December 31, ~~2021;~~2022; and

(4)

~~(3)~~

the consideration of such other matters as may properly come before the meeting.

Why did I receive a notice in the mail regarding the availability of proxy materials on the Internet instead of a full set of proxy materials?

Pursuant to rules of the SEC, we have elected to provide access to our proxy materials via the Internet. Accordingly, we sent a Notice of Internet Availability of Proxy Materials (the ~~"Notice"~~“Notice”) to our stockholders. The Notice provides stockholders with instructions on how to access and review this Proxy Statement and our ~~2020~~2021 Annual Report online, as well as vote online. We, like many public companies, have determined that providing proxy materials electronically significantly reduces our printing and mailing costs associated with the distribution of printed copies of our proxy materials to our stockholders.

Stockholders who receive a Notice will not receive a printed copy of the proxy materials by mail unless you request one. All stockholders will have the ability to access the proxy materials on the website referred to in the Notice or request to receive a printed set of the proxy materials. Instructions on how to access the proxy materials via the Internet or to request printed copies may be found within the Notice. In addition, stockholders may request to receive proxy materials in printed form by mail or electronically by email on an ongoing basis.

Who is entitled to vote at the Annual Meeting?

Only our stockholders of record at the close of business on April ~~14, 2021,~~13, 2022, the record date for the meeting, are entitled to receive notice of and to participate in the Annual Meeting. If you were a stockholder of record on that date, you will be entitled to vote all of the shares you held on that date at the meeting, or any postponement(s) or adjournment(s) of the meeting. As of the record date, there were ~~38,632,697~~37,804,381 shares of common stock outstanding, all of which are entitled to be voted at the Annual Meeting. As of the record date, there were ~~39,106,222~~39,527,615 shares of common stock issued.

A list of stockholders will be available at our offices at 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601 for a period of ten days prior to the Annual Meeting and will also be made available virtually at the Annual Meeting itself for examination by any stockholder.

What are the voting rights of the holders of our common stock?

Holders of our common stock are entitled to one vote per share on each matter that is submitted to stockholders for approval. Stockholders do not have cumulative voting rights.

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~~About the Meeting~~

Who can attend the meeting?

All stockholders as of the record date, or their duly appointed proxies, may virtually attend the Annual Meeting.

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About the Meeting

What constitutes a quorum?

The presence at the meeting, in person (virtually) or by proxy, of the holders of common stock representing a majority of the combined voting power of the outstanding shares of common stock on the record date will constitute a quorum, permitting the meeting to conduct its business. As of the record date, there were ~~38,632,697~~37,804,381 shares of common stock outstanding, all of which are entitled to be voted at the Annual Meeting.

What vote is required to approve each item?

The votes required to approve the matters to be presented at the Annual Meeting as listed in the Notice of the Annual Meeting are as follows:

•

For purposes of electing directors at the Annual Meeting, directors will be elected by a plurality of the votes of the shares ~~virtually~~ present (virtually) or represented by proxy at the meeting and entitled to vote on the election of directors. Accordingly, the director nominees receiving the most votes of the holders of our common stock will be elected as directors.

•

For all other matters, including the approval of the amendment of the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan, as well as for the ratification of the appointment of Moss Adams LLP as our independent registered public accounting firm for the fiscal year ending December 31, ~~2021,~~2022, as well as for approval requires the affirmative vote of the holders of a majority of the shares present in person (virtually) or represented by proxy at the Annual Meeting and entitled to ~~vote.~~

vote on the subject matter.

For purposes of ~~Proposal~~Proposals 2 and 3, proxies received but marked as abstentions will be included in the calculation of the number of shares considered to be present at the meeting for purposes of determining a quorum. Pursuant to our By-laws, broker non-votes will not be counted as shares entitled to vote aton such matters, and will have no effect on the ~~meeting, but votes~~outcome of such matters. Votes cast ~~"for"~~“for” or ~~"against"~~“against” and abstentions with respect to ~~all~~such matters will be counted as shares entitled to ~~vote.~~vote on such matters. A ~~"broker non-vote"~~“broker non-vote” will occur when a nominee holding shares for a beneficial owner does not vote on a particular proposal because the nominee does not have discretionary power with respect to that proposal and has not received instructions from the beneficial owner. On matters other than the election of directors, abstentions will ~~be treated as~~have the effect of a vote ~~"against".~~“against” such matters. If less than a majority of the combined voting power of the outstanding shares of common stock is represented at the Annual Meeting, either the Chairperson of the meeting or a majority of the shares so represented may adjourn the Annual Meeting from time to time without further notice.

The inspector of election for the Annual Meeting will determine the number of shares of common stock represented at the meeting, the existence of a quorum and the validity and effect of proxies and shall count and tabulate ballots and votes and determine the results thereof.

Please note that if you hold your shares in ~~"street~~“street name,"” your bank, broker or other nominee will not be permitted to vote your shares on either Proposal 1 (election of directors) or Proposal 2 (amendment of the ESPP) absent specific instructions from you. Therefore, it is important that you follow the voting instructions on the form that you receive from your bank, broker, or other nominee.

What are the ~~Board's~~Board’s recommendations?

Our Board of Directors recommends a vote FOR the election of all of the respective nominees for director named in this Proxy Statement, a vote FOR the approval of an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan, and a vote FOR the ratification of the appointment of Moss Adams LLP as our independent registered public accounting firm for the fiscal year ending December 31, ~~2021.~~

2022.

Unless contrary instructions are indicated on your proxy, all shares represented by valid proxies received pursuant to this solicitation (and which have not been revoked in accordance with the procedures set forth below) will be voted (1) FOR the election of each of the respective nominees for director named in this Proxy Statement; (2) FOR the approval of an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan; (3) FOR the ratification of the appointment of Moss Adams LLP as our independent registered public accounting firm for the fiscal year ending December 31, ~~2021;~~2022; and ~~(3)~~(4) in accordance with the recommendation of our Board of Directors, FOR or AGAINST all other matters as may properly come before the

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About the Meeting

Annual Meeting. In the event a stockholder

~~Byline Bancorp, Inc.~~ ~~2021 Proxy Statement 3~~

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specifies a different choice by means of the proxy, such shares will be voted in accordance with the specification made.

How do I vote?

If you are a holder of record (that is, if your shares are registered in your own name with our transfer agent), you may vote using the proxy card contained in the proxy materials. Voting instructions are provided on the proxy card. The Notice also includes information about how to vote via the Internet (at www.proxyvote.com~~www.proxyvote.com~~) or via telephone ~~(1-800-690-6903 and follow the instructions)~~(1-800-690-6903).

If you are a street name holder (that is, if you hold your shares through a bank, broker, or other holder of record), you must provide your voting instructions in accordance with the voting instruction form provided by your bank, broker, or other holder of record, who will then vote your shares on your behalf. The availability of telephone or Internet voting will depend upon your ~~bank's, broker's,~~bank’s, broker’s, or other holder of ~~record's~~record’s voting process.

If you virtually attend the Annual Meeting, you can vote your shares at that time.

Can I change my vote?

Yes. The giving of a proxy does not eliminate the right to vote at the Annual Meeting should any stockholder giving the proxy so desire. Stockholders have an unconditional right to revoke their proxy at any time prior to the exercise of that proxy, by (1) voting at the Annual Meeting, or (2) by filing a written revocation or duly executed proxy bearing a later date with our Secretary.

Who pays for costs relating to the proxy materials and Annual Meeting?

The costs of preparing, assembling, providing access to, and mailing this Proxy Statement, the Notice of Annual Meeting of Stockholders and the Annual Report and proxy card, along with the cost of posting the proxy materials on a website, are to be borne by us. In addition to the use of mail, our directors, officers, and employees may solicit proxies personally and by telephone, email, and other electronic means. They will receive no compensation in addition to their regular salaries. We may request banks, brokers and other custodians, nominees, and fiduciaries to forward copies of the proxy materials to their principals and to request authority for the execution of proxies. We may reimburse these persons for their expenses in so doing, if applicable.

4 Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement

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~~Table of Contents~~

Stock Ownership

Security Ownership of Certain Beneficial Owners and Management

The following table shows information regarding the beneficial ownership of our common stock for the following:

•

each stockholder known by us to beneficially own more than 5% of our common stock;

•

each of our directors;

•

each of our named executive officers; and

•

all directors and executive officers as a group.

•

All information is as of the record date, except as noted otherwise.

Beneficial ownership is shown as of April ~~14, 2021,~~13, 2022 and is based on ~~38,632,697~~37,804,381 shares of our common stock outstanding as of April ~~14, 2021.~~13, 2022. Beneficial ownership is determined in accordance with the rules of the SEC, which generally attribute beneficial ownership of securities to persons who possess sole or shared voting power or investment power with respect to such securities. A security holder also is deemed to be, as of any date, the beneficial owner of all securities that such security holder has the right to acquire within 60 days after such date, such as through the exercise of options or warrants or the conversion of a security. Except as otherwise indicated, all persons listed below have sole voting and investment power with respect to the shares beneficially owned by them. Except as otherwise indicated, the address for each stockholder listed below is c/o Byline Bancorp, Inc., 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601.

	Beneficial Ownership
Name of Beneficial Owners	Number		Percentage
Greater than 5% Stockholders:
MBG Investors I, L.P.(1)		11,467,123		30.33	%
ECR Holdings, S.A. de C.V.(2)		2,038,691		5.39	%
Directors:
Phillip R. Cabrera		13,151			*
Antonio del Valle Perochena(1)		11,467,123		30.33	%
Mary Jo S. Herseth		9,825			*
Margarita Hugues Velez		—	—
Steven P. Kent		80,000			*
William G. Kistner		10,100			*
Steven M. Rull(3)		185,400			*
Named Executive Officers:
Roberto R. Herencia**(4)		677,397		1.77	%
Alberto J. Paracchini**(5)		377,177		1.02	%
Thomas Abraham(6)		50,238			*
Lindsay Corby(7)		146,689			*
All directors and executive officers as a group (20 persons)		13,418,898		35.50	%

Beneficial Ownership

Name of Beneficial Owners
Number Percentage

Greater than 5% Stockholders:

MBG Investors I, L.P.⁽¹⁾
11,467,123 29.68 %
ECR Holdings, S.A. de C.V.⁽²⁾
2,038,691 5.28 %
Directors:

Roberto R. Herencia⁽³⁾
662,355 1.70 %
Phillip R. Cabrera
12,801 *
Antonio del Valle Perochena⁽¹⁾
11,467,123 29.68 %
Mary Jo S. Herseth
7,825 *
Steven P. Kent
77,500 *
William G. Kistner
5,000 *
Steven M. Rull⁽⁴⁾
185,400 *
Named Executive Officers:

Alberto J. Paracchini**⁽⁵⁾
518,808 1.33 %
Thomas Abraham⁽⁶⁾
47,360 *
Lindsay Corby⁽⁷⁾
138,979 *
Brogan Ptacin⁽⁸⁾
120,420 *

All directors and executive officers as a group (18 persons)
13,504,747 34.96 %

*: Represents beneficial ownership of less than 1%

Also a Director of the Company

(1)

Mr. Antonio del Valle Perochena as general partner of MBG Investors I, L.P. possesses sole voting and investment power with respect to the shares held by MBG Investors I, L.P. and may be deemed the beneficial owner of such shares. Mr. del Valle Perochena owns 16.625% of the partnership interests of MBG Investors I, L.P. Mr. del Valle Perochena disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein. The address for MBG Investors I, L.P. is 365 Bay Street, Suite 800, M5H2V1 Toronto, Ontario, Canada.

(2)

Mr. Eugenio Santiago Clariond Reyes as sole administrator of ECR Holdings, S.A. de C.V. possesses the voting and investment

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Stock Ownership

power with respect to the shares held by ECR Holdings, S.A. de C.V. and may be deemed the beneficial owner

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~~Stock Ownership~~

of such shares. The address for ECR Holdings, S.A. de C.V. is Vasconcelos 220, San Pedro Garza Garcia, Nuevo Leon, Mexico.

(3)

Includes shares held through the Rull Family L.P. Mr. Rull possesses the voting and investment power with respect to the shares held by the Rull Family L.P.

(4)

Includes shares held through the Roberto Herencia Inc. Defined Benefit Plan, as well as shares held through Mr. ~~Herencia's~~Herencia’s 401(k) Plan. Mr. Herencia has investment and voting power over the shares held by those plans. Includes 428,988 shares underlying options that are currently exercisable, and ~~109,475~~98,985 shares of restricted stock that have not yet vested but over which the stockholder has voting power.

~~(4)~~

(5)

Includes ~~shares held through the Rull Family Partnership, L.P. Mr. Rull possesses the voting and investment power with respect to the shares held by the Rull Family Partnership, L.P.~~

~~(5)~~

~~Includes 428,988~~214,494 shares underlying options that are currently exercisable, and ~~44,507~~40,320 shares of restricted stock that have not yet vested but over which the stockholder has voting power.

(6)

Includes ~~15,883~~15,648 shares of restricted stock that have not yet vested but over which the stockholder has voting power.

(7)

Includes 97,496 shares underlying options that are currently exercisable, and ~~22,490~~21,650 shares of restricted stock that have not yet vested but over which the stockholder has voting power.

~~(8)~~

~~Includes 51,974 shares underlying options that are currently exercisable, and 22,680 shares of restricted stock that have not yet vested but over which the stockholder has voting power.~~

Delinquent Section 16(a) Reports

Section 16(a) of the Securities Exchange Act of 1934, as amended (the ~~"Exchange Act"~~“Exchange Act”), requires our directors and executive officers, and persons owning more than 10% of a registered class of our equity securities, to file with the SEC reports of ownership and changes in ownership of the ~~Company's~~Company’s equity securities. These same persons are also required to furnish us with copies of all such forms. Based solely on a review of the copies of the forms furnished to us, or written representations that no Form 5 filings were required, we believe that, with respect to the ~~2020~~2021 fiscal year, all required Section 16(a) filings were timely ~~made.~~

made, with the exception of Forms 4 reflecting the withholding of shares to cover taxes that took place on:

(1)

June 4, 2020 for Brogan Ptacin;

(2)

December 19, 2020 for Thomas Abraham;

(3)

February 28, 2021 for each of Thomas Abraham, Megan Biggam, Mark Fucinato, Michelle Johnson, Alberto J. Paracchini, Brogan Ptacin, and Dana Traci;

(4)

April 2, 2021 for Megan Biggam, Mark Fucinato, Michelle Johnson, Alberto J. Paracchini, and Brogan Ptacin;

(5)

April 23, 2021 for Thomas J. Bell, Megan Biggam, Michelle Johnson, and Alberto J. Paracchini;

(6)

June 4, 2021 for Brogan Ptacin;

(7)

October 2, 2021 for Thomas J. Bell;

(8)

October 8, 2021 for Mark Fucinato;

(9)

December 3, 2021 for Dana Traci; and

(10)

December 19, 2021 for Thomas Abraham.

6 Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement

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	Proposal 1			The Board recommends a vote FOR each nominee for Director
	~~Proposal 1~~ Election of Directors
	The Governance and Nominating Committee of the Board of Directors is responsible for making recommendations to our Board of Directors regarding candidates for directorships and the size and composition of our Board of Directors. Each of our nominees currently serves as a Byline director, has consented to being named in this Proxy Statement and has agreed to serve if elected. If any nominee becomes unable to serve, the shares represented by all valid proxies will be voted for the election of such substitute nominees as the Board of Directors may recommend. At this time, the Board of Directors knows of no reason why any nominee might be unavailable or unwilling to serve.

The table below sets forth information regarding each nominee for director. Currently, each of our directors is elected annually to serve a one-year term.

Name	Age	Position	Director Since
Roberto R. Herencia	62	Executive Chairman and Chief Executive Officer	2013
Phillip R. Cabrera	69	Director	2013
Antonio del Valle Perochena	53	Lead Director	2013
Mary Jo Herseth	63	Director	2019
Margarita Hugues Vélez	51	Director	2022
Steven P. Kent	71	Director	2019
William G. Kistner	71	Director	2018
Alberto J. Paracchini	51	President and Director	2013

Name
Age
Position
Director Since

Roberto R. Herencia 61 Executive Chairman and Chief Executive Officer 2013
Phillip R. Cabrera 68 Director 2013
Antonio del Valle Perochena 52 Director 2013
Mary Jo Herseth 62 Director 2019
Steven P. Kent 70 Director 2019
William G. Kistner 70 Director 2018
Alberto J. Paracchini 50 President and Director 2013
Steven M. Rull 71 Director 2016

Information Regarding Nominees for Election


Roberto R. Herencia

Executive Chairman of the Board of Directors and Chief Executive Officer Age: 61 62 Director Since:2013 Board Committees: Risk				Background~~Background~~ Roberto R. Herencia has served as Chairman of our Board of Directors since June 2013, and as Executive Chairman and Chief Executive Officer since February 12, 2021. He serves as a member of the risk committee. Mr. Herencia also serves as Executive Chairman of the board of directors of Byline Bank, and serves as a member of the risk, executive credit, trust, and Asset-Liability Committee ~~("ALCO"~~(“ALCO”) committees of Byline Bank. Mr. Herencia led the Recapitalization of our predecessor, Metropolitan Bank Group, Inc., as President and Chief Executive Officer of BXM Holdings, Inc., a position he has held since November 2010. Prior to BXM Holdings, Inc., Mr. Herencia served as President and Chief Executive Officer of Midwest Banc Holdings, Inc. and spent 17 years with Popular Inc. as its Executive Vice President and as President of Popular Inc.'s’s subsidiary, Banco Popular North America. Mr. Herencia has also served as an independent director of Banner Corporation and its subsidiary, Banner Bank, since March 2016, and as Chairman of the board of directors of First BanCorp, and its subsidiary, FirstBank Puerto Rico since October 2011. Mr. Herencia previously served as an independent director of privately held SKBHC Holdings LLC, and its two subsidiary banks, American West Bank and First National Bank of Starbuck, from December 2010 to September 2015. Appointed by President Obama in 2011, Mr. Herencia serves on the Overseas Private Investment ~~Corporation's~~Corporation’s board of directors. Mr. Herencia holds a ~~bachelor's~~bachelor’s degree in finance from Georgetown University and an M.B.A. from the Kellogg School of Management at Northwestern University. Mr. ~~Herencia's~~Herencia’s qualifications include over 33 years of experience in the banking industry, having held senior roles in corporate, commercial, small business, problem asset restructuring and retail banking, as well as extensive experience with complex and distressed turnaround efforts, having executed over 15 mergers and acquisitions in his career.

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~~Table~~

Proposal 1: Election of ~~Contents~~

Directors

~~Proposal 1: Election of Directors~~


Phillip R. Cabrera

Age: 69~~Age:~~68 Director Since:2013 Board Committees: Audit, Compensation, Governance and Nominating				Background Phillip R. Cabrera has served on our Board of Directors since June 2013, and serves as member of the audit, compensation, and governance and nominating committees. Mr. Cabrera also serves on the board of directors of Byline Bank, serves as a member of the audit, compensation, governance and nominating, executive credit, trust, and ALCO committees of Byline Bank. Since retiring from the ~~McDonald's~~McDonald’s Corporation in 2015, Mr. Cabrera has served as an advisor and consultant to Air Products and INDURA, Santiago, Chile, assisting management in identifying and remedying gaps in audit, treasury, governance and controls. Mr. Cabrera retired as Vice President and International Treasurer of ~~McDonald's~~McDonald’s Corporation in October 2015, where for 21 years he held varied executive roles. Prior to his tenure at ~~McDonald's,~~McDonald’s, Mr. Cabrera was a Managing Director and Senior Partner in the Latin America Group of Continental Bank and served as President of Continental International Finance Corporation, a holding company for Continental ~~Bank's~~Bank’s international equity investments, from 1993 to 1994. Mr. Cabrera also served on the board of directors of Institutional Cash Distributors, an internet broker of money funds, until it was sold to private equity in 2018. Mr. Cabrera currently serves as an Industry Advisor to McNally Capital. Mr. Cabrera previously served on the advisory board of Unibanco, Banco do Investimento do Brazil from 1982 to 1986. Mr. Cabrera holds a ~~bachelor's~~bachelor’s degree in business administration from Bradley University and a ~~master's~~master’s degree in international management with a finance concentration from the Thunderbird School of Global Management and served in the U.S. Army. Mr. ~~Cabrera's~~Cabrera’s qualifications include over 30 years of experience in corporate finance, corporate treasury and banking.

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Proposal 1: Election of Directors

Mary Jo S. Herseth
		Age: 63 Director Since: 2019 Board Committees: Risk

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~~Mary Jo S. Herseth~~
	Background
~~Age:~~62 ~~Director Since:2019~~ ~~Board Committees:~~ ~~Risk~~		~~Background~~ Mary Jo S. Herseth has served on our Board of Directors since April 2019. She serves as a member of the risk committee. Ms. Herseth also serves on the board of directors of Byline Bank and serves as the chair of the executive credit committee, and as a member of the risk, trust, and ALCO committees of Byline Bank. Ms. Herseth has more than 36 years of banking experience and brings significant credit approval and policy expertise to the Board. Ms. Herseth retired as Senior Vice President and National Head of Banking of BMO Private Bank- U.S. in 2017, where she was responsible for ~~BMO's~~BMO’s private banking line of business at a national level. Prior to BMO, Ms. Herseth was Market Executive for Illinois and Michigan for US Trust, a part of Bank of America. She spent the majority of her career at LaSalle Bank where she was Executive Vice President and Head of Wealth Management in addition to other senior roles in Wealth Management and Commercial Banking. Currently, Ms. Herseth serves as a Board member of Ride Illinois, a Board member and member of various board committees of Thresholds, Inc., and as a Trustee and member of various board committees of Dominican University. Ms. Herseth received her ~~Bachelor's~~Bachelor’s degree in Finance from Northern Illinois University, and her Master of Business Administration degree from Northwestern ~~University's~~University’s J.L. Kellogg Graduate School of Management. Ms. Herseth is a recipient of the National Association of Women Business Owners (NAWBO) corporate woman of achievement for 2011.

Margarita Hugues Vélez
Age: 51 Director Since: 2022 Board Committees: N/A				Background Margarita Hugues Vélez has served on our Board of Directors since April 2022. Ms. Hugues also serves on the board of directors of Byline Bank. She currently is the Corporate Director at Grupo Kaluz, S.A. de C.V., which is the holding company for Orbia, S.A.B. de C.V. (formerly known as Mexichem, S.A.B. de C.V.) and Elementia Materiales, S.A.B. de C.V. and Fortaleza Materiales, S.A.B. de C.V. (formerly known as Elementia, S.A.B. de C.V.). Ms. Hugues is also part of the Board of Directors of Grupo Financiero Ve por Más, S.A. de C.V. since April 2022, and in the Boards of Directors of AXA Investment Management, S.A. de C.V. since 2015, Grupo Pochteca, S.A.B. de C.V. since 2016, Grupo Jumex, S.A. de C.V. since 2019 and CFE Generación V since 2017. Ms. Hugues’ professional career encompasses senior leadership positions in relevant companies, including her role as General Counsel and Head of Corporate Affairs at Grupo Modelo, S.A.B. de C.V., where she also was Secretary of the Board of Directors and the Committees under the Board, as well as a member of the Board of Directors at Crown Imports, LLC, the joint venture between Grupo Modelo and Constellation Brands. Ms. Hugues holds a law degree from Universidad Panamericana and has also worked in Mexican and international law firms.

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Steven P. Kent

Age: 71~~Age:~~70 Director Since: 2019~~2019~~ Board Committees: Risk (Chair), Compensation, and Governance and Nominating				Background~~Background~~ Steven P. Kent has served on our Board of Directors since June 2019, and serves as the chair of the risk committee, and as a member of the compensation, and governance and nominating committees. Mr. Kent also serves on the board of directors of Byline Bank, and serves as the chair of the risk committee, and as a member of the executive credit, compensation, ~~and~~ governance and nominating, and ALCO committees of Byline Bank. Mr. Kent served as Vice Chairman and a managing director of the Financial Services Group at Piper Sandler Companies (formerly Piper Jaffray Companies) until January 2021, where he focused on merger and acquisition advisory and capital market transactions for financial services companies. Prior to joining Piper Sandler in October 2015, Mr. Kent co-founded and served as President of River Branch Capital from March 2011 through its sale to Piper Jaffray in September 2015. At River Branch, Mr. Kent advised client banking companies on capital management, equity recapitalizations, merger & acquisition transactions and private equity executions where, in select instances, affiliates of River Branch acted as an investing principal. From August 1998 through March 2011, Mr. Kent was a managing director and co-head of the Chicago office of Keefe, Bruyette & Woods ~~("KBW"~~(“KBW”), a boutique investment bank and broker-dealer that specializes in the financial services sector. Prior to joining KBW, Mr. Kent was an executive officer with Robert W. Baird and Co. ~~("Baird"~~(“Baird”) for 16 years, where he led strategic planning, fixed income capital markets and structured finance, and headed the ~~firm's~~firm’s Financial Services Investment Banking practice. From 1973 to 1982, Mr. Kent was an executive officer at two Midwestern multibank holding companies focusing on strategic planning, bank and trust investment portfolio management, asset and liability management, and commercial and government guaranteed credit origination. From 2012 to 2018, Mr. Kent served as a director and member of the finance and nominating committees of IFF, a Midwest-focused Community Development Financial Institution ~~("CDFI"~~(“CDFI”) certified by the U.S. Department of the Treasury, which serves as a mission-driven lender, real estate consultant and developer that helps communities thrive by creating opportunities for low-income communities and people with disabilities. In January 2019, Mr. Kent was elected to join the board of the Community Reinvestment Fund, USA ~~("CRF"~~(“CRF”), a CDFI with a mission-driven strategy headquartered in Minneapolis. In 2020, Mr. Kent was elected to be a founding director of Ignify Technologies, a Public Benefit Corporation formed by CRF to commercialize its Spark Technology Platform to integrate and digitize the small business lending ecosystem.

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William G. Kistner
		Age: 71 Director Since: 2018 Board Committees: Audit (Chair), Risk

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~~William G. Kistner~~
	Background
~~Age:~~70 ~~Director Since:2018~~ ~~Board Committees:~~ ~~Audit~~ ~~(Chair), Risk~~		~~Background~~ William G. Kistner has served on our Board of Directors since April 2018, and serves as the chair of the audit committee, and as a member of the risk committee. Mr. Kistner also serves on the board of directors of Byline Bank, and serves as the chair of the audit committee, and as a member of the risk committee of Byline Bank. Mr. Kistner retired from Northwestern Memorial HealthCare (NMHC) in 2018. He joined NMHC in 2004 and in 2006 was appointed Vice President of Internal Audit where he rebuilt the Internal Audit function, developed a coordinated risk assessment methodology and audit work plans based upon organizational needs. He coordinated Audit Committee meetings and reported results of audits and projects to management, the Audit Committee, and the Board. Prior to joining NMHC in 2004, Mr. Kistner worked at Ernst & Young, LLP for 31 years. He was a Tax Partner for 19 years in the Chicago office where he served a variety of clients. Currently Mr. Kistner serves on the Board of Trustees of Loyola University Chicago. He is Chair of the Audit Committee and serves on the Finance and Executive Committees. Also, he is a member of the Board of Directors and Treasurer of Erie Family Health Centers. He is Chair of the Finance Committee and serves on the Executive Committee. Mr. Kistner received his Bachelor of Business Administration degree in accounting from Loyola University Chicago, his Master of Management degree in finance from the Kellogg Graduate School of Management and is a registered Certified Public Accountant.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE “FOR” THE ELECTION OF EACH NOMINEE FOR DIRECTOR UNDER PROPOSAL 1

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~~Steven M. Rull~~

~~Age:~~71 ~~Director Since:2016~~ ~~Board Committees:~~ ~~Audit, Risk~~			~~Background~~ Retirement of Steven M. Rull ~~has served on our~~from Byline’s and Byline Bank’s Board of Directors ~~since October~~
	In 2016, ~~and serves as member~~the Board of Directors appointed Steven M. Rull to the ~~audit~~Board of Directors of Byline and ~~risk committees. Mr. Rull also serves on the board of directors of~~ Byline Bank, as ~~the chair~~a result of ~~the Trust committee, as the chair of the ALCO committee, and as a member of the audit and risk committees of Byline Bank. From 2007 to 2016, Mr. Rull served as lead director of the board~~Byline's acquisition of Ridgestone Financial Services, Inc. and its subsidiary, Ridgestone Bank, ~~which we acquired in~~where he served as Lead Director from 2007 to 2016. Mr. Rull ~~co-founded Manchester Holdings~~notified the Board about his intention to retire from his positions as member of the Board and ~~its wholly owned subsidiaries, Detalus Advisors,~~the Board Committees of Byline and Byline Bank on which he serves to be effective as of the Annual Meeting on June 7, 2022. As a ~~retail and institutional asset manager, and Detalus Securities, a financial technology and financial advisory firm, in 2001.~~result, Mr. Rull co-founded Manchester Partners, an investment and consulting firm where he serves as Managing Director, in 1997. Mr. Rull served as Chairman and Chief Executive Officer of Bunker Hill Bancorp and its subsidiary, Boulevard Bank, from 2003 until its sale in 2013. He also held positions as Chairman of Atlanta Bancorporation and director of its subsidiary, Bank of Atlanta, from 2005 until its sale in 2014. Mr. Rull waswill not stand for reelection at the co-head of the capital markets division of Mark Twain Bank from 1994 to 1997. Prior to this role, he held positions as Chief Investment Officer and Chief Financial Officer of United Postal Bancorp from 1987 to 1994 and as President of the Mortgage Division of Mercantile Bank, which acquired United Postal Bancorp in 1994. Mr. Rull holds a bachelor's degree in accounting from Southern Illinois University Edwardsville and was a Certified Public Accountant in the state of Missouri from 1973 to 1996. Mr. Rull's qualifications include over 40 years of management and advisory experience in the financial services industry.
		Annual Meeting.

~~THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE~~ ~~"FOR"~~ ~~THE ELECTION OF EACH NOMINEE FOR DIRECTOR UNDER PROPOSAL 1~~

~~Retirement of Robert R. Yohanan from Byline's and Byline Bank's Board of Directors~~

On May 30, 2018, the Board of Directors appointed Robert R. Yohanan, who at that time was the Chief Executive Officer of First Evanston Bancorp, Inc. and First Bank & Trust (collectively, "First Evanston"), to the Board of Directors of Byline, to be effective upon completion of the merger of First Evanston with Byline. The appointment of Mr. Yohanan was contemplated by and made in accordance with the merger agreement.

Also in connection with the execution of the merger agreement, we entered into a services and covenant agreement (the "services agreement") with Mr. Yohanan, which superseded his then existing employment agreement and change in control agreement with First Evanston upon the effective time of the merger. The agreement provided that Mr. Yohanan's employment with First Evanston terminated upon the effective time of the merger and, for the period from the effective time of the merger until the third anniversary thereof, Mr. Yohanan was to provide general advisory services and be available to consult on specific projects with respect to Byline's business and the integration of Byline and First Evanston as requested by the Chief Executive Officer of Byline.

In addition, pursuant to the services agreement, during such three-year period, Mr. Yohanan served three one-year terms (or until our 2021 Annual Meeting) as a member of the boards of directors of Byline and Byline Bank. Mr. Yohanan will retire from his positions on the Board and Committees of Byline Bank effective upon the expiration of his current term as a director at the Annual Meeting on June 8, 2021.

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Corporate Governance

Composition of Our Board of Directors

Our Board of Directors currently has ~~eight~~nine members. Under our Amended and Restated Certificate of Incorporation and By-Laws, the number of directors constituting our Board of Directors is fixed from time to time by resolution of the Board of Directors. The Board met 14eight times during ~~2020. There are no family relationships among any~~2021. Our Lead Director, Mr. del Valle, is related to the Company’s SVP, Director of ~~our directors and executive officers.~~

Legal, Ana Casanueva, as first cousin.

Board Leadership Structure and Qualifications

We believe that our directors should have the highest professional and personal ethics and values, consistent with our longstanding values and standards. They should have broad experience at the policy making level in business, government, or banking. They should be committed to enhancing stockholder value and should have sufficient time to carry out their duties and to provide insight and practical wisdom based on experience. Each director must represent the interests of all stockholders.

When considering potential director candidates, our Board of Directors considers the ~~candidate's~~candidate’s character, judgment, diversity, skills, including financial literacy, and experience in the context of our needs and those of the Board of Directors. Our Board also considers the ~~candidate's~~candidate’s service on boards of other companies and whether such service would impair the ~~candidate's~~candidate’s ability to perform responsibly all director duties for Byline.

Our Board of Directors does not have a formal policy requiring the separation of the roles of Chief Executive Officer and Chairman of the Board. It is the Board of ~~Directors'~~Directors’ view that rather than having a rigid policy, the Board of Directors, with the advice and assistance of the Governance and Nominating Committee, and upon consideration of all relevant factors and circumstances, will determine, as and when appropriate, whether the two offices should be separate. Currently, Mr. Herencia holds the combined positions of Executive Chairman of the Board and Chief Executive Officer, while Mr. Paracchini is President of the Company, as well as President and Chief Executive Officer of Byline Bank. Also, Mr. del Valle Perochena was appointed Lead Director of the Company in February 2021 upon the assumption by Mr. Herencia of the Executive Chairman and Chief Executive Officer roles. We believe this current structure provides the appropriate level of oversight and management, as well as intends to accelerate and support the execution of the ~~Company's~~Company’s strategic plan, specifically its growth strategy, as a leading commercial bank in the Chicago MSA.

Diversity

Our Board believes that a range of experience, knowledge, and judgement, as well as a diversity of perspectives, geographic regions, gender, race, and national origin on the Board, enhances the overall effectiveness of the Board. At present, ~~56% of~~the overall diversity at our Board is ~~diverse from a gender,~~67%. Gender diversity accounts for 22% of the overall diversity, and race or ethnic ~~perspective.~~diversity accounts for 56% of the overall diversity. During ~~2020,~~2021, the Company focused its Diversity, Equity, and Inclusion (DEI) initiatives to ensure we are doing the work necessary to make the Company a safe and welcoming place for all of our employees and customers. With the support of the Board, the Company appointed a DEI Council as the foundation and catalyst for honoring our employees, engaging our customers and community, creating a great place to work, and ultimately driving business success.

Director Independence

Under the rules of the New York Stock Exchange ~~("NYSE"~~(“NYSE”), independent directors must comprise a majority of our Board of Directors. The rules of the NYSE, as well as those of the SEC, impose several requirements with respect to the independence of our directors. Our Board of Directors has undertaken a review of the independence of each director in accordance with these rules. Based on information provided by each director concerning his or her background, employment and affiliations, our Board of Directors has determined that each of Phillip R. Cabrera, Antonio del Valle Perochena, Mary Jo S. Herseth, Margarita Hugues Velez, Steven P. Kent, William G. Kistner, and Steven M. Rull ~~and~~ do not have relationships that would interfere with the exercise of their independent judgment in carrying out the responsibilities of a director and that each of these directors is ~~"independent"~~“independent” as that term is defined under the applicable rules. Our Board of Directors has determined that Messrs. del Valle Perochena, Cabrera and Kent also satisfy the heightened independence requirements for compensation committee members, and that Messrs. ~~Rull,~~

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Cabrera, Kistner, and ~~Cabrera~~Rull also qualify as independent directors under the heightened independence requirements of Rule 10A-3 of the Exchange Act for members of the ~~audit committee.~~Audit Committee. In making these determinations, our Board of Directors

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considered the current and prior relationships that each non-employee director has with our company and certain other facts and circumstances our Board of Directors deemed relevant in determining their independence, including the beneficial ownership of our capital stock by each non-employee director.

Committees of Our Board of Directors

The standing committees of our Board of Directors consist of an Audit Committee, a Compensation Committee, a Governance and Nominating Committee and a Risk Committee. The responsibilities of these committees are described below. Our Board of Directors may also establish such other committees as it deems appropriate, in accordance with applicable law and regulations and our corporate governance documents. The following table summarizes the current membership of each of the committees of the Board of Directors.

The membership of the Committees will be updated effective as of June 7, 2022, following the retirement of Mr. Rull.

Byline Committees

Audit

Compensation

Governance
and Nominating

~~Audit~~

~~Compensation~~

~~Governance~~
~~and Nominating~~

Risk

~~Roberto R. Herencia~~

~~Phillip~~Roberto R. ~~Cabrera~~

~~Antonio del Valle Perochena~~

Herencia

~~Mary Jo Herseth~~

~~Steven P. Kent~~

~~William G. Kistner~~

~~Steven M. Rull~~

●

Phillip R. Cabrera

●

Antonio del Valle Perochena

○

Mary Jo Herseth

●

Margarita Hugues Velez

Steven P. Kent

●

○

William G. Kistner

○

●

Steven M. Rull

●

·● Member o○ Chair

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Audit Committee

The Audit Committee assists the Board of Directors in fulfilling its responsibilities for general oversight of the integrity of our financial statements, our compliance with legal and regulatory requirements, the independent ~~auditors'~~auditors’ qualifications and independence, the performance of our internal audit function and independent auditors, and risk assessment and risk management.



Members William G. Kistner (Chair) Phillip R. Cabrera Steven M. Rull Meetings in ~~2020~~2021 14 15			The Audit ~~Committee's~~Committee’s duties and responsibilities include the following: • Appoints, evaluates and determines the compensation of our independent auditors. • Reviews and approves the scope of the annual audit and quarterly reviews, the audit and quarterly review fees, any additional services provided by the independent auditors and the related fees, the financial statements, significant accounting policy changes, material weaknesses identified by outside auditors or the internal audit function and risk management issues. • Prepares the Audit Committee report for inclusion in our proxy statement for our annual meeting, and reviews regulatory reports before they are filed with the SEC. • Reviews disclosure controls and procedures, internal controls, internal audit function and corporate policies with respect to financial information. • Assists the Board of Directors in monitoring our compliance with applicable legal and regulatory requirements. • Oversees investigations into complaints concerning financial matters, if any. • Reviews other risks that may have a significant impact on our financial statements. • Annually reviews the Audit Committee charter and the ~~committee's~~committee’s performance.

The Audit Committee works closely with management as well as our independent auditors. The Audit Committee has the authority to obtain advice and assistance from, and receive appropriate funding to engage outside legal, accounting or other advisors as the Audit Committee deems necessary to carry out its duties. The Audit Committee has adopted a written charter that among other things, specifies the scope of its rights and responsibilities. A copy of the ~~committee's~~committee’s charter is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab.

The Audit Committee is composed solely of members who satisfy the applicable independence, financial literacy and other requirements of the NYSE for audit committees, and at least one of its members is an ~~"audit~~“audit committee financial ~~expert"~~expert” as defined by the rules of the SEC, which is Mr. Kistner. Messrs. ~~Rull,~~ Kistner Cabrera and ~~Cabrera~~Rull also meet the heightened independence requirements of Rule 10A-3 of the Exchange Act.

Effective on June 7, 2022, following the retirement of Mr. Rull from the Board, Mr. Kent will become a member of the Audit Committee.

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Compensation Committee

The Compensation Committee sets and administers the policies that govern our executive compensation programs and is responsible for discharging the ~~Board's~~Board’s responsibilities relating to compensation of our executive officers and directors.



Members Antonio del Valle Perochena (Chair) Phillip R. Cabrera Steven P. Kent Meetings in ~~2020~~2021 7 6			The Compensation ~~Committee's~~Committee’s duties and responsibilities include the following: • Reviews and approves the ~~Company's~~Company’s executive compensation structure, including salary, bonus, incentive and equity compensation. • Reviews and approves objectives relevant to the compensation of the Executive Chairman and Chief Executive Officer and other executive officers. • Evaluates performance against the objectives established for the Executive Chairman and Chief Executive Officer and determines and approves, or recommends to the Board for approval, the compensation of the Executive Chairman and Chief Executive Officer based on its evaluation. • Makes recommendations to the Board with respect to the ~~Company's~~Company’s compensation plans that are subject to Board approval, discharges any responsibilities imposed on the Committee by any of these plans, and approves and recommends to the Board any new equity compensation plan or any material change to an existing equity compensation plan. • Reviews, approves and makes recommendations to the Board concerning the compensation of the non-employee directors of the Company. • Oversees and reviews periodically, as it deems appropriate, the administration of the ~~Company's~~Company’s employee benefits plans and any material amendments to such plans. • Review and monitor matters related to human capital management, including Company culture, talent development, ~~and~~ diversity, equity and inclusion (DEI) programs and initiatives and other environmental, social and governance (ESG) matters. • Evaluates performance in relation to the Compensation Committee charter.

Under the Compensation ~~Committee's~~Committee’s charter, the Compensation Committee may, at its discretion, delegate all or a portion of its duties and responsibilities to a subcommittee of the Compensation Committee. In addition, it may delegate authority to the Executive Chairman and Chief Executive Officer to approve compensation applicable to non-executive level Company employees, provided that the Compensation Committee reviews and approves the ~~Company's~~Company’s compensation structures applicable to non-executive level employees on an annual basis.

In ~~2020,~~2021, the Compensation Committee retained Pearl Meyer & Partners, LLC ("(“Pearl ~~Meyer"~~Meyer”) primarily to assist the Compensation Committee in determining and structuring executive compensation and to assess the market competitiveness of the ~~Company's~~Company’s executive compensation program. The Compensation Committee has annually engaged Pearl Meyer for these and related services since 2014. With respect to any advice provided to the Committee by Pearl Meyer, the Compensation Committee received a letter from Pearl Meyer addressing factors relevant to SEC and NYSE rules regarding independence and conflicts of interest. After considering the information provided by Pearl Meyer and other factors, no conflicts of interest with respect to Pearl Meyer were identified by the Compensation Committee, and the Compensation Committee concluded that Pearl Meyer was an independent consultant.

The Compensation Committee has adopted a written charter that among other things, specifies the scope of its rights and responsibilities. A copy of the ~~committee's~~committee’s charter is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab. The Compensation Committee is composed solely of members who satisfy the applicable independence requirements of the NYSE as they apply to members of compensation committees.

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Governance and Nominating Committee

The Governance and Nominating Committee is responsible for making recommendations to our Board of Directors regarding candidates for directorships and the size and composition of our Board of Directors. In addition, the Governance and Nominating Committee is responsible for overseeing our corporate governance guidelines and reporting and making recommendations to our Board of Directors concerning governance matters.



Members Antonio del Valle Perochena (Chair) Phillip R. Cabrera Steven P. Kent Meetings in ~~2020~~2021 3 4			The Governance and Nominating ~~Committee's~~Committee’s duties and responsibilities include the following: • Identifies individuals qualified to be directors consistent with the criteria approved by the Board of Directors, subject to any waivers granted by the Board, and recommends director nominees to the full Board of Directors. • Ensures that the Audit and Compensation Committees have the benefit of qualified ~~"independent"~~“independent” directors. • Oversees management continuity planning. • Leads the Board of Directors in its annual performance review. • Takes a leadership role in shaping the corporate governance of our organization.

The Governance and Nominating Committee has adopted a written charter that among other things, specifies the scope of its rights and responsibilities. A copy of the ~~Committee's~~Committee’s charter, as well as a copy of the corporate governance guidelines is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab. The Governance and Nominating Committee is composed solely of members who satisfy the applicable independence requirements of the NYSE for governance and nominating committees.

Risk Committee

The Risk Committee is responsible for overseeing our enterprise risk management policies, commensurate with our capital structure, risk profile, complexity, size and other risk related factors.



Members Steven P. Kent (Chair) Roberto R. Herencia Mary Jo Herseth William G. Kistner Steven M. Rull Meetings in ~~2020~~2021 10 11			The Risk ~~Committee's~~Committee’s duties and responsibilities include the following: • Monitor ~~management's~~management’s assessment of the ~~Company's~~Company’s aggregate enterprise-wide risk profile. • Review and recommend to the Board the articulation and establishment of the ~~Company's~~Company’s risk tolerance and risk appetite. • Oversee risk management infrastructure, profile, and critical risk management policies, including the charter of the Risk Management Committee. • Evaluate ~~management's~~management’s activities with respect to capital planning, including stress testing and compliance with risk-based capital standards. • Provide input regarding the Chief Risk ~~Officer's~~Officer’s performance and the adequacy of the ~~Bank's~~Bank’s risks management functions.

The Risk Committee has adopted a written charter that specifies among other things, the scope of its rights and responsibilities. A copy of the ~~committee's~~committee’s charter is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under ~~"Goverrnance Documents"~~“Governance Documents” tab.

In addition to the committees described above, the Board of Directors of Byline Bank also has an Executive Credit Committee, a Trust Committee and an ALCO Committee. The Executive Credit Committee provides oversight of our credit risk management function. This committee oversees the risk appetite, the development of policies, practices

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and systems for measuring credit risk and monitors the performance and quality of our credit portfolio. Ms. Herseth is Chairman of the Executive Credit Committee, and the ~~committee's~~committee’s other members include Messrs. Herencia, Paracchini, Kent and ~~Ms.~~ Cabrera. The Trust Committee provides oversight in implementing policies for the ~~Bank's~~Bank’s Wealth

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Management and Trust department, as well as practices and controls sufficient to promote high quality fiduciary administration. Mr. Rull is the Chairman of the Trust Committee, and the ~~committee's~~committee’s other members include Messrs. Cabrera, Herencia and Ms. Herseth. The ALCO Committee provides oversight of the Asset and Liability Management function. Mr. Rull is the Chairman of the ALCO Committee, and the ~~committee's~~committee’s other members include Messrs. Cabrera Herencia, Kent, ~~Cabrera,~~ Paracchini and Ms. Herseth.

Effective on June 7, 2022, following the retirement of Mr. Rull from the Board, Mr. Kent will become the Chairman of the Trust Committee, and Mr. Cabrera will become the Chairman of the ALCO Committee.

Board Oversight of Risk Management

Our Board of Directors believes that effective risk management and control processes are critical to our safety and soundness, our ability to predict and manage the challenges that we face and, ultimately, our long-term corporate success. Our Board of Directors, both directly and through its committees, including the Risk Committee, is responsible for overseeing our risk management processes, with each of the committees of our Board of Directors assuming a different and important role in overseeing the management of the risks we face.

The Risk Committee of our Board of Directors oversees our enterprise-wide risk management framework, which establishes our overall risk appetite and risk management strategy and enables our management to understand, manage and report on the risks we face. Our Risk Committee also reviews and oversees policies and practices established by management to identify, assess, measure and manage key risks we face, including the risk appetite metrics developed by management and approved by our Board of Directors. The Audit Committee of our Board of Directors is responsible for overseeing risks associated with financial matters (particularly financial reporting, accounting practices and policies, disclosure controls and procedures and internal control over financial reporting) and engaging as appropriate with our Risk Committee to assess our enterprise-wide risk framework. The Compensation Committee of our Board of Directors has primary responsibility for risks and exposures associated with our compensation policies, plans and practices, regarding both executive compensation and the general compensation structure. In particular, our Compensation Committee, in conjunction with our Chief Executive Officer, President, Chief Human Resources Officer and other members of our management as appropriate, reviews our incentive compensation arrangements to ensure these programs are consistent with applicable laws and regulations, including safety and soundness requirements, and do not encourage imprudent or excessive risk taking by our employees. The Governance and Nominating Committee of our Board of Directors oversees risks associated with the independence of our Board of Directors and potential conflicts of interest.

Our senior management is responsible for implementing and reporting to our Board of Directors regarding our risk management processes, ~~including~~ by assessing and managing the risks we face, including strategic, operational, regulatory, investment and execution risks, on a day to day basis. Our senior management is also responsible for creating and recommending to our Board of Directors for approval appropriate risk appetite metrics reflecting the aggregate levels and types of risk we are willing to accept in connection with the operation of our business and pursuit of our business objectives.

The role of our Board of Directors in our risk oversight is consistent with our leadership structure, with our Chief Executive Officer, President, Chief Financial Officer, Chief Risk Officer and the other members of senior management having responsibility for assessing and managing our risk exposure, and our Board of Directors and its committees providing oversight in connection with those efforts. We believe this division of risk management responsibilities presents a consistent, systemic and effective approach for identifying, managing and mitigating risks throughout our operations.

Stockholder Engagement and Communicating with Our Board

We believe in proactive and transparent communication and engagement with our stockholders to promote an understanding of the values we maintain, our governance framework, the decisions we make and how me make them, our business strategy and our financial performance, and we welcome receiving communications from our stockholders regarding these matters. Generally, the Board relies on the Executive Chairman of the Board and Chief Executive Officer, and other executive officers to speak for the Company, and management is generally responsible for managing our corporate communications and investor relations activities. Throughout the year, our Executive

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Chairman and Chief Executive Officer, President and Chief Financial Officer regularly interact with significant stockholders regarding our performance, business strategy and other corporate matters. From time to time, it may be

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Corporate Governance

appropriate for one or more of our non-executive directors to speak or meet with stockholders. Any such communication would occur under the direction and oversight of the Executive Chairman and Chief Executive Officer.

Stockholders may contact the Board or any committee of the Board about matters specific to the ~~Board's~~Board’s and/or its ~~committees'~~committees’ oversight responsibilities. Written correspondence may be directed to the Board of Directors at Byline Bancorp, Inc., Attention: Corporate Secretary, 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601. Inquiries from stockholders directed to the Board will be received and processed by the Corporate Secretary before being forwarded to the Board, the appropriate Committee or a particular director as designated in the communication.

Director Attendance at Our Annual Meeting and Board Meetings

While we do not have a formal policy regarding our ~~directors'~~directors’ attendance at the ~~Company's~~Company’s annual and special meetings, our Board expects each director to attend, either in person or remotely via conference call, the ~~Company's~~Company’s Annual Meeting of Stockholders each year, absent extenuating circumstances. All of our directors serving on the Board in ~~2020~~2021 at that time attended our ~~2020~~2021 annual meeting. We currently anticipate that all our directors will attend the Annual Meeting. During ~~2020,~~2021, each of our directors attended at least ~~75%~~90% of the meetings of the Board and Board committees on which they served.

Nominee Recommendations by Stockholders

Stockholders wishing to recommend persons for consideration by the Governance and Nominating Committee as nominees for election to the Board of Directors can do so by writing to the Governance and Nominating Committee at Byline Bancorp, Inc., Attention: Corporate Secretary, 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601. Recommendations must include the proposed ~~nominee's~~nominee’s name, biographical data and qualifications as well as a written statement from the proposed nominee consenting to be named as a nominee and, if nominated and elected, to serve as a director. If all necessary information is provided, the Governance and Nominating Committee will then consider the candidate and the ~~candidate's~~candidate’s qualifications in the same manner as prospective nominees that are identified by the committee. The Governance and Nominating Committee may contact the stockholder making the nomination to discuss the qualifications of the candidate and the reasons for making the nomination.

Any stockholder seeking to nominate persons for election to our Board of Directors must comply with our procedures for stockholder nominations described under the heading ~~"Stockholder~~“Stockholder Proposals."

”

Compensation Committee Interlocks and Insider Participation

None of the members of our Compensation Committee is currently or was previously an officer or employee of Byline or Byline Bank. In addition, none of our executive officers serves or has served as a member of the board of directors, compensation committee or other board committee performing equivalent functions of any company or other entity that has one or more executive officers serving as one of our directors or on our Compensation Committee.

Code of Business Conduct and Ethics

Our Board of Directors has adopted a code of business conduct and ethics (the ~~"Code~~“Code of ~~Ethics"~~Ethics”) that applies to all of our directors, officers and employees, including our principal executive officer, principal financial officer and principal accounting officer and persons performing similar functions. Our Board has also adopted a Code of Ethics for Financial Officers. A copy of each code is available upon written request to Corporate Secretary, Byline Bancorp, Inc., 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601 and on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab. If we amend or grant any waiver from a provision of our Code of Ethics that applies to our executive officers, we will publicly disclose such amendment or waiver on our website and as required by applicable law, including by filing a Current Report on Form 8-K.

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Human Capital and Social Responsibility

We believe in being the bank our customers deserve, which, as embodied in our name, means taking ownership, initiative, action, and responsibility for what we do.

In order to achieve our vision to be the bank our customers deserve, we focus on:

•

Consistently delivering an extraordinary customer ~~experience~~

experience;

•

Helping our customers bank the way they want to ~~bank~~

bank;

•

Cultivating a positive culture and great place to work by finding, growing, and ~~keeping~~retaining talented ~~employees~~

employees; and

•

~~Contribute~~

Contributing to the local communities in which we work and live to grow and thrive—today and into the ~~future~~

future.

To do this, ~~we've~~we’ve outlined the Things That Matter (TTM) at Byline—values that guide our business, mission, and team culture:

Our people.

Our greatest asset. We speak, act and treat one another with respect — every day, everywhere and every time.

Obsess about our customers.

Every single experience and interaction matters. Go to extraordinary lengths to convert customers into fans.

Insist on Excellence.

And the highest ethical standards in everything we do.

Embrace change.

Change is constant. Without change, we cannot grow.

Think like an owner.

Be frugal. Take ownership of issues until they are resolved. Present new ideas.

Know the Numbers.

Facts matter. We don’t know our business if we don’t know our numbers.

Fast is better than slow.

Speed matters in business. Get it done. Deliver results.

Inspire.

Respect, challenge and collaborate with each other every day. Teamwork is our greatest strength.

Environmental, Social and Governance (ESG) Mission Statement

At Byline, we are focused on generating consistent and long-term sustainable value for all our stakeholders, including stockholders, customers, employees, and communities. Our approach to ESG is shaped by a shared vision: we put our name behind everything we do. We know that our reputation is on the line with every action we take and so, we are dedicated to improving our communities where we live and work.

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Human Capital

and Social Responsibility

Human Capital

Attracting, developing, and retaining the best people is crucial to our long-term strategy. Our business is about people—our customers and our employees. ~~We seek to help~~For additional information, please see the section captioned “Item 1. Business-Human Capital” in our ~~customers build, make, and do—none of which would be possible without our employees.~~

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Annual Report in form 10-K

~~Human Capital and Social Responsibility~~

Employee Profile and Diversity

We embrace diversity within our teams and define diversity by both gender and people of color. Our key human capital diversity metrics are as follows:

[MISSING IMAGE: tm223537d1-pc_profile4c.jpg]

* ~~Diversity is defined by gender and people of color, as disclosed. Data~~

Workforce statistics include information as of December 31, ~~2020~~

2021. Executive Leadership and Board of Directors statistics include information as of April 25, 2022.

Talent Attraction, Development and Retention

To facilitate talent attraction, development and retention across our franchise, we strive to make Byline a diverse, inclusive, safe and healthy workplace, with opportunities for our employees to grow and develop in their careers, supported by strong compensation, benefits, health and welfare programs. We believe the management and development of our employees is key to our strategic growth plan and longer-term succession planning. We seek to encourage and empower our team members to take initiative, make decisions, own their careers and build ~~customers~~customer relationships through our programs and employee-led efforts and initiatives throughout Byline Bank.

We have developed initiatives that support physical, emotional, financial, and social wellbeing, including:

•

Competitive, performance-based compensation, including incentives tied to business and individual ~~results~~

results;

•

Comprehensive health and welfare benefits ~~offerings~~

offerings;

•

Savings and retirement planning resources through our 401(k) Plan and Employee Stock Purchase ~~Plan~~

Plan;

•

Tuition reimbursement benefits and student loan repayment programs;

•

Access to employee assistance plans to help with financial planning and personal, family and life ~~issues~~

~~We provide development opportunities to our employees.~~ issues;

•

Paid parental leave programs;

•

Adoption assistance;

•

Remote work arrangements and;

•

Paid time off policies.

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Human Capital and Social Responsibility

We recognize the critical importance of providing career development and advancement opportunities for all employees. Accordingly, we provide a variety of formal and informal development opportunities to help employees grow in their current roles and build new skills.

During 2021, we continued our focus on having more frequent career development conversations with all employees, providing regular coaching and feedback, and highlighting opportunities across the Bank to move into new roles and take on new assignments. We increased our investment in both leader and manager development in 2021 with new programs and will continue to invest in these programs in 2022 and beyond.

We strive to optimally deploy existing talent across Byline by focusing on where our employees excel and helping them find the best roles for them. One of the hallmarks of our success in this area is demonstrated by our ability to fill vacancies from within.

We encourage our team members to pursue educational opportunities that will help improve job performance and professional development. To further this goal, we ~~reimburse~~launched tuition reimbursement benefits in 2021. We also support employees in obtaining professional certifications and ~~certain fees for satisfactory completion of~~taking approved educational courses to support their job role and certain certifications. In addition, we equip leaders with the tools to act as mentors and to give open and honest feedback and support, and we provide employees the resources and support to create and execute personalized developmental plans.expansion of skills.

We believe that talent development is a critical part of our succession planning of our executive management team. Our Board of Directors oversees the succession planning for executive management on an annual ~~basis.~~

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basis, including a focus on outlining key development needs for employees on succession plans for these key roles.

~~Human Capital and Social Responsibility~~

Employee recognition and engagement is important for us. ~~Some of the tools we have developed to achieve such a crucial objective are:~~

•: We conduct an annual employee engagement survey with over 90% ~~participation.~~
participation and have continued to see strong improvements in employee engagement year over year. In order to drive engagement, we focus on the following areas:

•

Increasing communication with employees and managers through monthly manager forums, quarterly all employee calls and business unit town hall meetings.

•

We provide everyday recognition ~~through our "Kudos Cards"~~ that ~~celebrate~~celebrates employees living our core values, or ~~"Things~~“Things That ~~Matter"~~Matter”.

•

Our annual CEO Circle Awards highlight our employees who have demonstrated extraordinary performance during the year and exemplify our values.

•

~~Our employee resource groups ("ERGs") were formed to facilitate equity and inclusion across the organization. These ERGs include: Women Empowered by Byline, LatinX, Black, Asian and LGBTQ+.~~

Diversity, Equity and Inclusion

At Byline, ~~racism and discrimination in any form is not tolerated and~~ we believe in supporting a culture of respect and inclusion. ~~We commit to~~Our DEI asCouncil is led by our executive team in partnership with an appointed team made up of three senior executives and 13 employees with representation across all business units. The DEI Council is the foundation and catalyst for honoring our employees, engaging our customers and community, creating a great place to work, and ultimately driving business success.

We pledge to create an environment where every employee can bring their authentic self to work and know that their unique background, ethnicity, experiences, perspective, and contributions serve to strengthen us and where growth opportunities exist at all levels.

For our customers and community, we ~~strive that you see~~seek to demonstrate through our actions ~~that we value each of you~~our commitment to being better together through community development loans and ~~know we are better together.~~ investments, community service, grants, donations, and sponsorships.

We ~~move forward challenging ourselves~~seek to ~~live this vision every day.~~

~~Our Board is fully committed~~leverage our current diverse workforce and prominent community outreach efforts to ~~this purpose~~further define and ~~in 2020 supported management in developing a comprehensive~~enhance our DEI ~~Initiative. Lead by members of the executive team, a DEI Council was created with~~ focus in four key areas:

Workforce—Promoting representation at all levels and in all areas and business lines of the bank, with attention on recruiting and developing diverse talent and focusing on engagement and employee recognition.

Workplace—Creating a culture where everyone brings their authentic self to work and knows that their unique background, ethnicity, experiences, perspective, and contribution serve to strengthen the ~~bank and our culture.~~

bank.

Community~~Community~~—Building meaningful, productive relationships in the communities we work.

Marketplace—Providing our customers with products and services that meet their diverse needs, including support through digital strategies that align to the market.

Our Employee Resource Groups (“ERG”) were formed to support development, engagement and inclusion across the organization. These ERGs include Women Empowered by Byline, Latinx, Black, Asian, and LGBTQ+. During 2021 the ERGs organized 34 events that were attended by over 850 employees.

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Human Capital and Social Responsibility

Community Impact

We are proud to be a community bank. ~~By supporting local businesses and working with families to protect and grow their money, we make our neighborhoods even stronger. That's what being in the community means to us.~~ We are committed to helping the local communities in which we live and work to grow and thrive, today and into the future. One way we do this is by providing employees paid time off to participate in community-based volunteer programs. Throughout the year, employees make a positive impact in their local communities and have found a

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~~Human Capital and Social Responsibility~~

multitude of special ways to continue volunteering during the pandemic. During ~~2020,~~2021, Byline made and/or supported:

[MISSING IMAGE: tm223537d1-fc_human4c.jpg]

Information as of December 31, 2021.

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Director Compensation

The following table lists the individuals who served on our Board of Directors in ~~2020~~2021 and the compensation received in ~~2020~~2021 for their service as directors, other than with respect to Mr. ~~Paracchini,~~Herencia, our ~~President, who during 2020 held the positions of President~~Executive Chairman and Chief Executive Officer, and Mr. Paracchini, our President, whose compensation as ~~an officer~~officers of the Company is detailed in the Summary Compensation Table in the ~~"Executive Compensation"~~“Executive Compensation” section of this Proxy Statement. All compensation paid to directors is for their service on both the Byline Board of Directors and the Byline Bank Board of Directors.

Name	Fees Earned or Paid in Cash(1)			Fees Paid in Shares(2)			All Other Compensation		Total
Phillip R. Cabrera		$	114,167					—		$	114,167
Antonio del Valle Perochena		$	140,515					—		$	140,515
Mary Jo S. Herseth		$	97,083		$	6,250		—		$	103,333
Steven P. Kent		$	100,417					—		$	100,417
William G. Kistner		$	100,417		$	5,000		—		$	105,417
Steven M. Rull		$	101,875					—		$	101,875
Robert R. Yohanan(3)		$	689,583					—		$	689,583

(1)

Name
Fees Earned
or
Paid in Cash(1)
All Other
Compensation(2)
Total

Roberto R. Herencia
$ 800,000 $ 15,571 $ 815,571
Phillip R. Cabrera
120,000 — 120,000
Antonio del Valle Perochena
108,750 — 108,750
Mary Jo S. Herseth
80,000 — 80,000
Steven P. Kent
76,250 — 76,250
William G. Kistner
85,000 — 85,000
Jaime Ruiz Sacristán⁽³⁾
36,667 — 36,667
Steven M. Rull
80,000 — 80,000
Robert R. Yohanan⁽⁴⁾
900,000 — 900,000

~~(1)~~: ~~See "Byline Bancorp, Inc. Director Compensation Program" below for a description of Mr. Herencia's Compensation arrangements in his role during 2020 as Chairman of the Board.~~ Mr. Cabrera received ~~$15,000~~$6,250 for his service as Chair of Byline ~~Bank's~~Bank’s Executive Credit Committee and $7,917 for his service as a member of the Audit Committee and the Byline Bank Executive Credit Committee for a portion of the year; Ms. Herseth received $8,750 for her service as Chair of Byline Bank’s Executive Credit Committee for a portion of the year, and $5,000 for her service as a member of the Risk Committee; Mr. Kent received $5,833 for his service as Chair of the Risk Committee, and $5,000 for his service as a member of the ~~Audit Committee; Ms. Herseth received $5,000 for her service as a member of~~ Byline ~~Bank's~~Bank Executive Credit ~~Committee;~~Committee for a portion of the year; Mr. Kistner received ~~$10,000~~$12,917 for his service as Chair of the Audit ~~Committee;~~Committee, and $2,917 for his service as a member of the Risk Committee for a portion of the year; Mr. Del Valle Perochena received ~~$5,000~~$12,917 for his service as Chair of the Compensation Committee and ~~$3,750~~Chair of the Governance and Nominating Committee for the full year; Mr. Rull received $4,375 for his service as Chair of the ~~Governance~~Byline Bank Trust Committee, and ~~Nominating Committee (for a portion~~Chair of the ~~year); Mr. Rull received $5,000~~Byline Bank ALCO Committee for the full year, and $7,917 for his service as a member of the Audit ~~Committee;~~Committee and the Risk Committee for the full year.

(2)

Effective June 8, 2021, the Compensation Committee approved a provision to the director compensation program to allow non-employee directors to be paid a portion of the annual board retainer in the form of restricted shares of common stock. These shares are to be issued on the date of the 2022 Annual Stockholders' Meeting. Mrs. Herseth and Mr. ~~Kent received $1,250 for his service~~Kistner elected to be paid a portion of the remaining outstanding 2021 fee in shares, 25% and 20% respectively.

(3)

Mr. Yohanan served three one-year terms as a member of the ~~Executive Credit Committee.~~

~~(2)~~

~~Reflects payments made~~boards of directors of Byline and Byline Bank under a services and covenant agreement executed by ~~the Bank for health, dental~~ and ~~vision insurance premiums~~between Mr. Yohanan and ~~amounts paid for cell phone expenses for Mr. Herencia.~~

~~(3)~~

~~Jaime Ruiz Sacristán served~~Byline as a ~~Director until April 12, 2020, Mr. Ruiz Sacristan received $1,667 for his service as Chair~~result of the ~~Governance~~merger of First Evanston Bancorp, Inc. into Byline. Mr. Yohanan retired from his positions on the Board and ~~Nominating Committee and $1,666 for his service as member~~Committees of Byline ~~Bank's Executive Credit Committee.~~

~~(4)~~

~~See "Retirement of Robert R. Yohanan from Byline's~~ and Byline ~~Bank's Board of Directors".~~

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Bank effective on June 8, 2021.

~~Director Compensation~~

Byline Bancorp, Inc. Director Compensation Program

Our director compensation program provides the following compensation for non-employee members of our Board of Directors:

•

An annual cash retainer of ~~$100,000 for directors who were serving on June 1, 2016 and $75,000 for all other directors;~~

$100,000;

•

An additional annual cash retainer of ~~$5,000~~$15,000 for the Chair of the ~~Risk~~Audit Committee;

•

An additional annual cash retainer of $7,500 for the Chair of the Compensation Committee;

•

An additional annual cash retainer of $7,500 for the Chair of the Governance and Nominating Committee;

•

An additional annual cash retainer of $10,000 for the Chair of the ~~Audit~~Risk Committee;

•

~~An additional annual cash retainer of $5,000 for the Chair of the Compensation Committee;~~

•

~~An additional annual cash retainer of $5,000 for the Chair of the Governance and Nominating Committee;~~

•

An additional annual membership fee of $5,000 for each member of the Audit Committee, the Risk Committee and/or the ~~Bank's~~Bank’s Executive Credit Committee; ~~and~~

•

An additional annual cash retainer of $15,000 for the Chair of the ~~Bank's~~Bank’s Executive Credit Committee;

•

An additional annual cash retainer of $3,750 for the Chair of the Bank’s Trust Committee;

•

An additional annual cash retainer of $3,750 for the Chair of the Bank’s ALCO Committee; and

•

A retainer of $20,000 for the Lead Director.

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Director Compensation

Under our director compensation plan, the annual cash retainer fees for directors, committee chairs and committee members are paid in twelve (12) equal monthly installments on the last day of each month, and newly-appointed directors and/or committee members, committee chairs or Lead Director of the Board will be paid on a pro rata basis in relation to the time served during their first month of service. Directors are allowed to elect to receive up to 100% of their annual board retainer in shares of our common stock to be issued pursuant to the Byline Bancorp, Inc. 2017 Omnibus Incentive Compensation Plan.

We also reimburse all directors for reasonable and substantiated out-of-pocket expenses incurred in connection with the performance of their duties as directors. ~~Additionally,~~We provide insurance policies for directors and officers and will indemnify directors to the ~~Chairman~~fullest extent provided under Byline’s Certificate of ~~the Board is entitled~~Incorporation and By-laws as in effect from time to ~~reimbursement of cell phone services and certain medical and health insurance expenses.~~

time.

Directors agree, in connection with their service as directors, that they will not, without the prior consent of Byline, directly or indirectly, provide any material services to any other banking entity which competes in any material respect with Byline and its subsidiaries as long as they serve as a director of Byline (other than services disclosed in writing).

Notwithstanding the above, any director who is an officer of Byline ~~will~~shall not receive any ~~separate compensation for serving as a~~ director ~~of the Company or the Bank.~~

~~Compensation Paid to Mr. Herencia in 2020~~

Mr. Herencia is a founder of Byline, and his leadership was instrumental in the organization and recapitalization of our business in 2013. During that time, he organized the investor group, recruited the management team, and provided significant expertise resulting in the Company's financial and regulatory turnaround.

As Chairman of the Board from 2013 until February 2021, Mr. Herencia has been involved heavily with Board matters and overseeing management's execution of the Board's guidance. He actively interacted with the CEO and other members of management to provide his perspective on important issues facing our company and played an active role in the retention and recruiting of executive talent. It is the Board's position that his leadership is critical and his contributions in dealing with the effects of the COVID-19 pandemic will have long-term impact on the financial well-being of Byline.

Mr. Herencia's compensation for 2020 reflects his specialized expertise and the significant investment of time he spent with the Board and executive leadership, especially in light of the unprecedented challenges our business and our customers faced as a result of the COVID-19 pandemic. As such, he received an aggregate annual cash retainer of $400,000, which included the annual board retainer and all committee membership and committee chair retainers that the Chairman would otherwise be entitled to receive. Additionally, Mr. Herencia received a payment of $400,000, paid in two equal installments in March and September of 2020 subject to continued service through such dates.

~~New~~ compensation.

Agreement with Mr. Herencia

In January of 2021, the Board conducted a ~~deeper~~deep evaluation of our then Chairman, Mr. ~~Herencia's~~Herencia, and his significant ongoing involvement with the Company’s management and his ability to have a substantial and positive impact on the execution of the ~~Company's~~Company’s strategy. WeThe Board announced the appointment of Mr. Herencia as Executive Chairman and Chief Executive Officer of ~~the~~ Byline Bancorp, Inc., effective as of February 12, ~~2021, and~~2021. In connection with the assumption of this expanded role, we entered into ana new employment agreement with Mr. Herencia ~~in connection with the assumption of his expanded role~~ (the ~~"Employment Agreement"~~“Employment Agreement”).

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, which is summarized as follows.

~~Director Compensation~~

The Employment Agreement is for an initial term of three years and includes an automatic one-year extension at the end of each term following the initial term unless notice of termination is provided not less than 120 days prior to the end of such term. In addition, the Employment Agreement will terminate on the termination of Mr. ~~Herencia's~~Herencia’s employment. Upon the occurrence of a Change in Control (as such term is defined in the Employment Agreement), the term of the Employment Agreement will renew for the period expiring on the second anniversary of such Change in Control and will automatically renew for one year on each subsequent anniversary of such date thereafter, unless at any time not less than 120 days prior to the end of such term either Byline or Mr. Herencia notifies the other in writing of the intention not to further extend the term.

During the term of the Employment Agreement, Mr. Herencia serves as Executive Chairman and Chief Executive Officer of the Byline, reporting to the Board, and Executive Chairman of the Board of Directors of the Bank. The Employment Agreement provides for an annual base salary of $825,000 (which may be increased but not decreased), eligibility to participate in (1) ~~Byline's~~Byline’s Executive Incentive Plan, with an annual target cash bonus of 75% of his annual base salary (or such other percentage as the Board may determine), and (2) ~~Byline's~~Byline’s long-term incentive awards annually under the 2017 Omnibus Incentive Compensation Plan (the ~~"2017 Plan"~~“2017 Plan”), with an annual long-term incentive award target equal to 85% of his annual base salary. In connection with entering into the Employment Agreement, Mr. Herencia was awarded a restricted stock award of 109,475 shares of ~~Byline's~~Byline’s common stock under the 2017 Plan, vesting in equal installments at the end of 2021, 2022 and 2023.

The Employment Agreement also includes severance benefits that are subject to signing a release. If we terminate Mr. Herencia without ~~"cause" (and~~“cause” (and not due to Disability (as such term is defined in the Employment Agreement) or Mr. Herencia resigns for ~~"good reason" (provided~~“good reason” (provided that the expiration of the term of the Employment Agreement following the delivery by Byline of a notice of non-renewal of such term shall be deemed to be a termination of Mr. ~~Herencia's~~Herencia’s employment by Byline without ~~"cause"~~“cause”), other than on or following the occurrence of a Change in Control, he will be entitled to (each capitalized term as defined in the Employment Agreement): (1) the Accrued Amounts and any Unpaid EIP; (2) a Pro Rata Bonus; and (3) a cash amount equal to the sum of (a) the Severance Amount plus (b) the Applicable COBRA Amount, payable in substantially equal installments over 24 months following termination of employment. In the event Mr. Herencia is terminated without ~~"cause" (and~~“cause” (and not due to Disability) or he resigns for ~~"good reason"~~“good reason” within two years following a Change in Control, he will be entitled to: (1) the Accrued Amounts and any Unpaid EIP; (2) a Pro Rata Bonus; and (3) a cash amount equal to the sum of (a) the CIC Severance Amount (as such term is defined in the Employment Agreement) plus (b) the Applicable COBRA Amount, payable in lump sum within 15 days after the release becomes effective.

~~"Cause"~~

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Director Compensation

“Cause” generally means: (1) a willful and continued failure to perform substantially ~~one's~~one’s duties; (2) willfully engaging in illegal conduct, an act of dishonesty or gross misconduct related to the performance of ~~one's~~one’s duties and responsibilities; (3) being charged with a crime involving moral turpitude, dishonesty, fraud, theft or financial impropriety; (4) willful violation of a material requirement of any applicable code of ethics or standards of conduct of Byline, or violation of a fiduciary duty to Byline; or (5) a breach of ~~Byline's~~Byline’s Agreement Protecting Company Interests.

“Good ~~reason"~~reason” generally means: (1) any material reduction in Mr. ~~Herencia's~~Herencia’s base salary; (2) any material adverse change in Mr. ~~Herencia's~~Herencia’s title, position, authority or reporting relationships, including, without limitation, ceasing to be the Executive Chairman and Chief Executive Officer of a publicly-traded company; (3) the requirement to relocate Mr. ~~Herencia's~~Herencia’s principal place of employment to a location in excess of 50 miles from the his principal work location on the date of the Employment Agreement; or (4) the failure to nominate Mr. Herencia to, or his removal from, the Board of Directors of Byline or the Bank.

The Employment Agreement also provides that in the event his employment terminates due to death or Disability, Mr. Herencia or his estate would be entitled to receive, in addition to any accrued but unpaid compensation or benefits, any ~~unpaid bonus~~Unpaid EIP earned with respect to any fiscal year ending on or preceding the date of termination and a pro rata portion of his bonus for the fiscal year in which the termination occurs, payable at the time that such bonuses are paid to other senior executives for such year. In addition, in the event of his death, Mr. ~~Herencia's~~Herencia’s beneficiary would be entitled to a lump sum cash amount equal to $750,000.

As a condition to the Employment Agreement, Mr. Herencia has entered into an Agreement Protecting Company Interests with Byline, which contains (1) a confidentiality provision regarding the use and disclosure of confidential information during the term of employment and after, (2) a customer and employee non-solicit during employment and for 18 months following termination of employment, and (3) assignment of inventions and non-disparagement provisions.

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	Proposal 2			The board recommends a vote FOR this proposal
	To approve an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of common stock that may be offered under the plan
	In 2017, our board of directors adopted the Byline Bancorp, Inc. Employee Stock Purchase Plan (the “ESPP”) in connection with our initial public offering. The ESPP allows our employees to purchase shares of our common stock at a discount from the market price through automatic payroll deductions. A total of 200,000 shares of our common stock were reserved and available for sale under the ESPP. As of April 1, 2022, only 74,348 shares of common stock remain available under the ESPP. On April 18, 2022, the Board approved an amendment to the ESPP to increase the number of shares available under the ESPP by 200,000 shares of common stock, subject to our stockholders’ approval.

Description of Amendment

At the Annual Meeting, stockholders will be requested to approve an increase by 200,000 in the number of shares available for issuance under the ESPP. At current participation levels and the Company’s current stock price, we estimate that, in the absence of approval of increase in the number of shares of common stock that may be offered under the ESPP, all such shares could be substantially exhausted before the end of 2023. If the amendment is approved by stockholders, the number of shares available under the ESPP will be increased to 400,000. We believe that this increase in the number of shares available under the ESPP will enable eligible persons to participate under the ESPP until approximately December 31, 2027, based on current participation levels and the current price of our common stock.

Summary of the ESPP

The following is a description of the material terms of the ESPP, as proposed to be amended. This description is qualified in its entirely by reference to the plan document, as proposed to be amended, a copy of which is attached to this Proxy Statement as Annex A and incorporated herein by reference.

Administration

The ESPP is administered by the Compensation Committee of our Board of Directors, who may delegate its administrative authority to a person or committee who shall serve as the “Plan Administrator.” The Compensation Committee has delegated such authority to our senior human resources officer. The Plan Administrator has the authority to make and adopt rules and regulations not inconsistent with the provisions of the ESPP or the Internal Revenue Code of 1986, as amended (the “Code”). In addition, the Plan Administrator corrects any defect or supplies any omission or reconciles any inconsistency in the ESPP. The interpretations and decisions of the Plan Administrator in respect to the ESPP will be final and binding.

Eligible Employees

All of our employees or employees of participating subsidiaries, as defined in the ESPP, whose customary term of employment is for more than 20 hours per week, are eligible to participate in the ESPP. In addition, no employee may purchase shares of our common stock under the ESPP that would result in the employee owning 5% or more of the total combined voting power or value of our stock or the stock of any of our subsidiaries.

Offerings

From time-to-time, the Company offers employees the opportunity to buy stock in the Company through the ESPP. Unless determined otherwise by the Compensation Committee, offerings begin on January 1 and July 1 of each year

26 Byline Bancorp, Inc. 2022 Proxy Statement

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Proposal 2: To approve an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of

common stock that may be offered under the plan

and last for a period of six months. The Compensation Committee will establish an enrollment period, a period of time prior to the beginning of an offering during which eligible participants may subscribe to an offering in such manner as the Compensation Committee may prescribe (which may include enrollment by submitting forms, by voice response, internet access or other electronic means). Eligible employees elect whether to participate in the ESPP (i.e., have deductions made from their after-tax compensation for the purpose of buying shares) during the enrollment period.

Each eligible employee who is a participant as of the date an offering commences is deemed to be granted an option to participate in the ESPP for that offering. The Compensation Committee may also establish a waiting period of up to two years after an employee is first employed before the employee may participate or permit employees who are hired during an offering period to participate in the offering. On the last day of each offering period, the accumulated balance in each participant’s account will be used to purchase shares at the purchase price described below. The Compensation Committee may also provide for periodic purchase dates during an offering period.

A participant can change his or her level of withholding or withdraw his or her subscription at any time (but not retroactively), during an offering, subject to rules and limitations established by the Plan Administrator. A participant whose employment is terminated during an offering period is deemed to have withdrawn his or her subscription. Upon the withdrawal (or deemed withdrawal) of a participant, the balance in his or her account will either be refunded or used to purchase shares on the next purchased date, as determined by the Compensation Committee.

Purchase Price

The purchase price paid by participants for the shares purchased under the ESPP is set by the Compensation Committee and will, in any case, be no less than 85% of the lower of the fair market value of a share of our common stock on the first day of the applicable offering period or on the purchase date. Unless provided otherwise, the default purchase price per share provided for in the ESPP will be 85% of the fair market value of a share of our common stock on the last day of the applicable offering period or earlier purchase date.

Limitations on Purchase

As required by the Code, no eligible employee may purchase stock under the ESPP at a rate which, when aggregated with his or her other rights to purchase our common stock, exceeds $25,000 in fair market value per year. Unless the Plan Administrator determines otherwise, employees are also limited in making elections under the ESPP to contributing no more than 15% of their after-tax compensation to the ESPP.

Mandatory Retention or Sale of Stock

To facilitate compliance with applicable law, the Compensation Committee may require participants to (a) retain any shares purchased under the ESPP for a designated period of time or may establish other procedures to restrict transfer of such shares or (b) sell shares immediately upon purchase or within a specified period following a termination of employment.

Adjustments

In the event of a stock split, stock dividend, reverse stock split, extraordinary cash dividend, recapitalization, reorganization, reclassification or combination of shares, merger, consolidation, distribution, split-up, spin-off, exchange of shares, sale of assets or similar corporate transaction or event, the Compensation Committee, in the manner it deems equitable, will adjust (a) the number and class of shares or other securities reserved for issuance under the ESPP, (b) the number and class of shares or other securities that are subject to outstanding options, and (c) the appropriate market value and other price determinations applicable to options (including the purchase price).

Termination and Amendment of the ESPP

Our Compensation Committee generally may, at any time, terminate or amend the ESPP in any respect, except that, without approval of our stockholders, no amendment may increase the maximum number of our shares reserved under the ESPP or modify the requirements as to eligibility for participation in the ESPP. No termination or amendment of the ESPP may terminate or materially and adversely affect a participant’s rights under the ESPP without such participant’s consent. Unless earlier terminated by the Compensation Committee, the ESPP will terminate when no remaining shares are available for issuance under the ESPP.

Byline Bancorp, Inc. 2022 Proxy Statement 27

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Proposal 2: To approve an amendment to the Company’s Employee Stock Purchase Plan to increase the number of shares of

common stock that may be offered under the plan

Required Vote

The approval of the amendment to the ESPP requires the affirmative vote of the holders of a majority of the shares present in person or represented by proxy at the Annual Meeting and entitled to vote on the proposal. Abstentions will have the same effect as a vote against the proposal. Broker non-votes will not be counted as shares entitled to vote on the proposal.

THE BOARD OF DIRECTORS RECOMMENDS THAT YOU VOTE “FOR” THE AMENDMENT TO THE COMPANY’S EMPLOYEE STOCK PURCHASE PLAN TO INCREASE THE NUMBER OF SHARES OF COMMON STOCK THAT MAY BE OFFERED UNDER THE PLAN

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	Proposal 3			The board recommends a vote ~~Proposal 2~~FOR this proposal
	Ratification of Independent Registered Public Accounting Firm
	Under its charter, the Audit Committee has the sole authority to appoint or replace our independent registered public accounting firm, subject to stockholder approval, and has direct responsibility for the compensation and oversight of such firm. Our independent registered public accounting firm for the fiscal year ended December 31, ~~2020~~2021, was Moss Adams LLP ("(“Moss ~~Adams"~~Adams”) and the Audit Committee has engaged Moss Adams for the fiscal year ending December 31, ~~2021.~~ 2022.

The Board is submitting for ratification by our stockholders at the Annual Meeting the appointment of Moss Adams as our independent registered public accounting firm for the fiscal year ending December 31, ~~2021.~~2022. Moss Adams has served as our independent auditor since 2013. In considering the reappointment of Moss Adams for ~~2021,~~2022, the Audit Committee reviewed, among other considerations, the quality of services provided, both historically and in connection with the most recent audit; Moss ~~Adams'~~Adams’ capability and expertise, particularly with respect to the financial services industry and its resources; the communication and interaction by Moss ~~Adams'~~Adams’ audit team with the Audit Committee and management; the ~~firm's~~firm’s independence, objectivity and professional skepticism; and the appropriateness of Moss ~~Adams'~~Adams’ fees.

The Board has invited representatives of Moss Adams to be present at the Annual Meeting and expects that they will attend. If present, these representatives will have the opportunity to make a statement if they desire to do so and are expected to be available to respond to appropriate questions from stockholders.

Fees Paid to Moss Adams LLP

The following is a summary and description of the aggregate fees for professional services provided by Moss Adams LLP to Byline and its subsidiaries for the fiscal years ended December 31, ~~2020~~2021, and ~~2019,~~2020, as well as all out-of-pocket costs incurred in connection with these services that were billed to us.

	2021			2020
Audit Fees		$	819,000		$	835,000
Audit-Related Fees		$	19,000		$	18,500
Total		$	838,000		$	853,500

2020
2019

Audit Fees
$ 835,000 $ 701,000
Audit-Related Fees
18,500 18,500
Total
$ 853,500 $ 719,500

Audit Fees. Audit fees consist primarily of fees and expenses for the audits of our annual consolidated financial statements as well as the review of interim condensed consolidated financial information included in the reports we filed with the SEC. Also included are fees for services normally provided by an independent auditor in connection with statutory and regulatory filings.

Audit-Related Fees. Audit-related fees consist of fees related to the audit or review of the financial statements of our 401(k) Plan.

Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement 25

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~~Table~~

Proposal 3: Ratification of ~~Contents~~

Independent Registered Public Accounting Firm

~~Proposal 2: Ratification of Independent Registered Public Accounting Firm~~

Audit Committee Preapproval Policies and Procedures

All of the fees and services described above under ~~"audit fees"~~“audit fees” and ~~"audit-related fees"~~“audit-related fees” were pre-approved by the Audit Committee. Pursuant to its charter, the Audit Committee pre-approves all audit and permissible non-audit services provided by the independent public accounting firm. These services may include audit services, audit-related services, tax services and other services. In connection with the pre-approval of any permissible tax services or services related to internal control over financial reporting, the Audit Committee charter provides that the Audit Committee will discuss with the independent public accounting firm the potential impact on the ~~firm's~~firm’s independence in providing such services. Any pre-approval is subject to receipt of details as to the service or category of services to be provided and the provision of supporting documentation at the time of approval. The Audit Committee may delegate pre-approval authority to one or more of its members. Such member must report any decisions to the Audit Committee at the next scheduled meeting.

THE BOARD OF DIRECTORS RECOMMENDS THAT YOU VOTE “FOR”~~"FOR"~~ THE RATIFICATION OF THE APPOINTMENT OF MOSS ADAMS LLP AS THE ~~COMPANY'S~~COMPANY’S INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR THE ~~2021~~2022 FISCAL YEAR

30 Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement

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~~Table of Contents~~

Report of the Audit Committee

The Audit Committee of the Board of Directors is responsible for providing independent, objective oversight of the ~~Company's~~Company’s accounting functions and internal controls and is composed of directors that are ~~"independent"~~“independent” as defined under the NYSE corporate governance listing standards and Rule 10A-3 of the Exchange Act. The Audit Committee operates under a written charter approved by the Board of Directors and held 1514 meetings during fiscal year ~~2020.~~2021. A copy of the charter is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab.

Management is responsible for the ~~Company's~~Company’s internal control over financial reporting, disclosure controls and procedures and the financial reporting process. The independent registered public accounting firm is responsible for performing an independent audit of our consolidated financial statements in accordance with Public Company Accounting Oversight Board (PCAOB) standards and to issue reports thereon. The Audit ~~Committee's~~Committee’s responsibility is to monitor and oversee these processes, including the activities of the ~~Company's~~Company’s internal audit function. The Audit Committee has established a mechanism to receive, retain and process complaints on auditing, accounting and internal control issues, including the confidential, anonymous submission by employees and others of concerns on questionable accounting and auditing matters.

In connection with these responsibilities, the Audit Committee met with management and the independent registered public accounting firm to review and discuss the ~~2020~~2021 audited consolidated financial statements. The Audit Committee also discussed with the independent registered public accounting firm the matters required by PCAOB Auditing Standard No. 1301, Communications with Audit Committees. In addition, the Audit Committee received the written disclosures and letter from the independent registered public accounting firm required by applicable requirements of the PCAOB regarding the independent ~~accountant's~~accountant’s communications with the Audit Committee concerning independence, and the Audit Committee has discussed with the independent registered public accounting firm its independence from the Company and its management.

Based upon the Audit ~~Committee's~~Committee’s discussions with management and the independent registered public accounting firm, and the Audit ~~Committee's~~Committee’s review of the representations of management and the independent registered public accounting firm, the Audit Committee recommended that the Board of Directors include ~~Byline's 2020~~Byline’s 2021 audited consolidated financial statements in our Annual Report on Form 10-K for fiscal ~~2020~~2021 filed with the SEC.

This report is submitted on behalf of the current members of the Audit Committee:


		William G. Kistner (Chair) Phillip R. Cabrera Steven M. Rull

This report shall not be deemed to be incorporated by reference by any general statement incorporating by reference this Proxy Statement into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, and shall not otherwise be deemed filed under such acts.

Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement 27

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~~Table of Contents~~

~~Executive Officers~~

~~The name, age, position and office, and business experience during at least the past five years, of our current executive officers, other than Mr. Herencia and Mr. Paracchini, are set forth below.~~

~~Thomas Abraham~~ (56) has served as President of Byline Bank's Small Business Capital ("SBC") line of business since May 2019. Mr. Abraham was promoted to this position after having served as Senior Vice President, SBA Sales Manager of SBC since October 2016 when Byline Bancorp acquired SBC's predecessor company, Ridgestone Bank. Mr. Abraham served as Senior Vice President, Sales and Marketing at Ridgestone Bank from February 2007 through October 2016.

~~John M. Barkidjija~~ (58) has served as Executive Vice President and Head of Commercial Real Estate and Specialty Finance of Byline Bank since January 2019. Previously, Mr. Barkidjija was Senior Vice President, Group Head, Commercial Real Estate of Byline Bank since January 2014.

~~Thomas J. Bell III~~ ~~(54) has been Senior Vice President and Corporate Treasurer of Byline Bank since August 2013.~~

~~Megan Biggam~~ (42) has served as Executive Vice President of Retail Banking of Byline Bank since February 2020. Ms. Biggam previously held the position of Senior Vice President of Retail Banking of Byline Bank since June 2013.

~~Lindsay Corby~~ (43) has served as Executive Vice President and Chief Financial Officer of Byline and Byline Bank since July 2015. Ms. Corby joined Byline in June 2013, serving as Chief Administrative Officer until July 2015.

~~Mark Fucinato~~ (64) has served as Executive Vice President and Chief Credit Officer for Byline Bancorp, Inc. and Byline Bank since August 2020. He joined Byline Bank in August 2019 as Senior Vice President and Senior Credit Officer. Prior to joining Byline, Mr. Fucinato served as Senior Credit Officer at MB Financial Bank from 2016 to 2019, and at FirstMerit Bank from 2010 to 2016.

~~Michelle Johnson~~ (40) has served as Senior Vice President and Chief Risk Officer of Byline Bank since October 2019. Ms. Johnson joined Byline Bank in 2015, as the Director of Operational Risk Management and assumed the role of Deputy Chief Risk Officer in 2018.

~~Nicolas Mando~~ (49) has served as Senior Vice President and Chief Technology and Operations Officer at Byline Bank since 2021. He joined Byline in 2019 as Director of Special Projects. Prior to joining Byline, he held the Chief Operating Officer role at Bridgeview Bank from 2009 to 2019.

~~Brogan Ptacin~~ (60) has served as an Executive Vice President and Head of Commercial Banking for Byline Bank since January 2019. Prior to joining Byline, Mr. Ptacin served as a Managing Director of First Bank & Trust from 2009 until First Bank & Trust was acquired by Byline in 2018, where he joined as Managing Director.

~~Dana Traci~~ (51) has served as Executive Vice President and Chief Human Resources Officer of Byline Bank since 2019. Prior to joining Byline, she was Interim Chief Human Resources Officer for Discover Financial Services, where she held a variety of business line and human resources roles since 1994.

~~Succession Planning~~

Our Board of Directors oversees both emergency and long-term succession planning for our Executive Chairman and CEO, President, CFO, and other key management roles within Byline. The succession plan is reviewed annually to ensure a smooth transition in the event of a planned or unplanned vacancy in these positions. Succession planning for our executive officers is reviewed by the Board annually to identify potential successors and oversee their development planning.

28 ~~Byline Bancorp, Inc.~~ ~~2021 Proxy Statement~~

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Executive Compensation

We are an ~~"emerging~~“emerging growth company,"” as defined in the Jumpstart Our Business Startups Act of 2012, or the JOBS Act. As such, we are eligible to take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies. These include, but are not limited to, reduced disclosure obligations regarding executive compensation in our proxy statements, including the requirement to include a specific form of Compensation Discussion and Analysis, as well as exemptions from the requirement to hold a non-binding advisory vote on executive compensation. We have elected to comply with the scaled disclosure requirements applicable to emerging growth companies.

Introduction

The objective of our executive compensation program is to attract, retain, and motivate leaders who are committed to executing on our business strategy and creating long-term value for our stakeholders. To help us achieve these objectives, the Compensation Committee has designed an executive compensation program that consists of fixed, and variable pay elements in the form of base salaries, annual cash and long-term equity incentives. The program is built on a foundation of best-in-class compensation governance practices and policies:


		We link a significant portion of compensation to performance using short-term (cash) and long-term (equity) compensation.
				We employ a variety of performance metrics to deter excessive risk-taking by eliminating any incentive focus on a single performance goal.
				We have built in appropriate levels of discretion to adjust incentive payouts if results are not aligned with credit quality, regulatory compliance, or leading indicators of future financial results.
				We maintain stock ownership and retention guidelines for our executives and directors.
				We grant equity awards that have ~~"double-trigger"~~“double-trigger” equity vesting provisions upon a change in control.
				We do not provide significant perquisites.
				We engage an independent compensation consultant.
				We have a clawback policy.
				We prohibit hedging and pledging of our stock by our directors and executive officers.

32 Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement 29

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Executive Compensation

~~Executive Compensation~~

In addition to the above, the table below summarizes what the Company does and does not do with respect to its compensation governance practices and demonstrates that the ~~Company's~~Company’s practices are designed to encourage actions that are in the long-term interests of its stockholders.


What We Do	~~What We Don't Do~~
		What We Don’t Do

Pay for Performance • We base our annual incentive compensation programs on the achievement of corporate and individual performance measures that are tied directly to our business strategy. • We link a significant portion of compensation to performance using short-term (cash) and long-term (equity) compensation. Emphasize Long-term Performance • Equity programs reward performance over a three-year time horizon. Equity Awards • We grant equity awards that have ~~"double-trigger"~~“double-trigger” equity vesting provisions upon a change in control. Stock Ownership Commitment • Our stock ownership guideline policy ensures that our executive officers and directors own an appropriate amount of our common stock, which aligns their interests with our stockholders. Clawbacks • Our policy requires the recoupment of any excess incentive compensation paid to our executive officers if we are required to restate our financial statements due to material noncompliance with any financial reporting requirement under applicable securities laws. Risk Management • Our compensation plans are evaluated annually by our risk management professionals and our Compensation Committee, as part of its effort to ensure our compensation plans do not encourage imprudent risk taking. • We employ a variety of performance metrics to deter excessive risk-taking by elimination any incentive focus on a single performance goal. • We have built in appropriate levels of discretion to adjust incentive payouts if results are not aligned with credit quality, regulatory compliance, or leading indicators of future financial results. Compensation Benchmarking • We use a defined peer group for benchmarking, and the Compensation Committee periodically reviews the peer group to ensure the peer companies remain relevant and appropriate. Engage Independent Advisor • The Compensation Committee uses the services of an independent compensation consultant.			No Hedging or Pledging of Company Stock • We have a policy that prohibits all executive officers and directors from entering into any transaction designed to hedge or offset changes in the market value of our stock. The policy also prohibits holding our stock in a brokerage margin account or pledging our stock as collateral for a loan. No Extensive Use of Employment Agreements • We limit the use of employment agreements to our Executive Chairman and CEO, President, CFO, and the President of our Small Business Capital business unit. No Significant Perquisites • We do not provide significant perquisites to our executive officers. No Golden Parachute Tax Gross-ups • We do not allow for tax gross-ups under employment agreements or other severance plans. No Multi-year Compensation Guarantees. • Our employment agreements and compensation plans generally do not provide for any multi-year compensation guarantees. No Unearned Dividends Paid • We accrue dividends on performance-based restricted stock awards during performance periods, but the dividends are not paid until the award vests.

Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement

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Executive Compensation

~~Executive Compensation~~

As we continue to grow, the Compensation Committee will review and adjust the design of the executive compensation program to ensure it remains aligned with our business objectives, talent strategy and market practices.

Succession Planning

Summary Compensation Table

The named executive officers of Byline Bancorp, Inc. as of December 31, ~~2020,~~2021, are

•

Roberto R. Herencia, Executive Chairman and Chief Executive Officer

•

Alberto J. Paracchini, President, ~~and Chief Executive Officer,~~

•

Lindsay Corby, Executive Vice President and Chief Financial Officer,

and

•

Thomas Abraham, President of Byline Small Business ~~Capital, and~~

•

~~Brogan Ptacin, Executive Vice President and Head of Commercial Banking.~~

Capital.

The following summary compensation table presents compensation awarded in the fiscal years ended December 31, ~~2018,~~ 2019, 2020 and ~~2020~~2021 to our named executive officers or paid to or accrued for those executive officers for services rendered during fiscal years ~~2018,~~ 2019, 2020 and ~~2020,~~2021, as applicable.

Name and Principal Position	Year		Salary			Bonus(2)			Omnibus Incentive Plan Awards(3)			All Other Compensation(4)			Total
Roberto R. Herencia(1) Executive Chairman and Chief Executive Officer		2021		$	825,000		$	928,125		$	2,062,509		$	34,349		$	3,849,983


Alberto J. Paracchini President		2021		$	615,000		$	507,375		$	369,037		$	29,395		$	1,520,807
		2020			608,750			253,688			282,520			12,609			1,157,566
		2019			556,875			254,250			216,674			12,409			1,040,208
Lindsay Corby EVP and Chief Financial Officer		2021		$	381,875		$	231,000		$	187,230		$	13,275		$	813,380
		2020			356,250			108,000			132,020		$	13,275		$	609,545
		2019			326,875			126,127			122,022			11,356			586,380
Thomas Abraham President Small Business Capital		2021		$	400,000		$	144,000		$	120,017		$	21,712		$	685,729
		2020			400,000			84,000			120,015		$	11,592		$	615,607
		2019			400,000			108,000			150,007		$	33,150		$	691,157

(1)

Name and Principal Position
Year
Salary
Bonus⁽¹⁾
Omnibus
Incentive Plan
Awards⁽²⁾
All Other Compensation⁽³⁾
Total

Alberto J. Paracchini
2020 $ 608,750 $ 253,688 $ 282,520 $ 12,609 $ 1,157,566
President and Chief
2019 556,875 254,250 216,674 12,409 1,040,208
Executive Officer
2018 491,667 216,654 222,151 12,196 942,668
Lindsay Corby

2020

$
356,250

$
108,000

$
132,020

$
12,143

$
608,413
EVP and Chief Financial Officer
2019 326,875 126,127 122,022 11,356 586,380

2018 301,667 119,842 114,012 11,139 546,660
Thomas Abraham
2020 $ 400,000 $ 84,000 $ 120,015 $ 19,092 $ 623,107
President Small Business Capital
2019 400,000 108,000 $ 150,007 11,392 669,399
2018 400,000 40,000 — 11,184 451,184
Brogan Ptacin⁽⁴⁾

2020

$
326,469

$
242,490

$
110,530

$
33,315

$
721,804
EVP and Head of Commercial Banking
2019 315,750 405,316 110,548 33,604 865,218

2018 184,188 259,837 313,345 10,951 768,320

As previously disclosed, prior to his appointment as Executive Chairman and Chief Executive Officer, Mr. Herencia was compensated as Chairman of the Board as follows: For 2019, he received an aggregate amount of 817,935. For 2020, he received an aggregate amount of 815,571.

~~(1)~~

(2)

The amounts in this column represent earned annual cash incentive awards under the Byline Executive Incentive Plan. ~~Also includes retention bonuses paid during 2018, 2019 and 2020 for Mr. Ptacin pursuant to his Retention Agreement entered into in connection with our acquisition of First Evanston Bancorp, Inc.~~

~~(2)~~

(3)

Represents the dollar value of shares of restricted stock that were awarded in ~~2018,~~ 2019, 2020 and ~~2020.~~2021. For ~~Messrs.~~Mr. Paracchini ~~and Ptacin~~ and for Ms. Corby, 50% of these shares are subject to time vesting, equally over three years from the grant date; the remaining 50% are performance-based, based on the achievement of performance goals ~~during~~over a ~~performance~~three year period beginning on January 1 ~~2020 and ending on December 31, 2022.~~st of the year granted . Any earned performance shares vest in full on the third anniversary of the grant date. For Mr. ~~Abraham received a one-time time-based award of $150,007 in December 2019 per~~Herencia, the ~~terms of his employment agreement. The award vests over a period of three years~~shares will vest one-third on each ~~anniversary~~ of the ~~date the award was granted.~~

following dates: December 31, 2021, December 30, 2022, and December 29, 2023. For Mr. Abraham, the shares are subject to time vesting, equally over three years from the grant date.

~~(3)~~

(4)

The items comprising ~~"All~~“All Other ~~Compensation"~~Compensation” for ~~2020~~2021 are as follows:

Name	Perquisites and Other Benefits(a)			Contributions to Defined Contribution Plans(b)			Insurance Premiums(c)			Total
Roberto R. Herencia		$	20,693		$	10,875		$	2,780		$	34,349
Alberto J. Paracchini		$	16,560			11,600			1,234		$	29,395
Lindsay Corby		$	900			11,600			775		$	13,275
Thomas Abraham		$	9,900			11,600			212			21,712

34 Byline Bancorp, Inc. 2022 Proxy Statement

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Executive Compensation

Name
Perquisites and
Other Benefits^(a)
Contributions
to Defined
Contribution
Plans^(b)
Insurance
Premiums^(c)
Total

Alberto J. Paracchini
$ — $ 11,400 $ 1,209 $ 12,609
Lindsay Corby
— 11,400 743 12,143
Thomas Abraham
7,500 11,400 192 19,092
Brogan Ptacin
21,758 11,400 157 33,315

(a)

~~(a)~~: ~~Reflects~~Includes auto allowance for Messrs. ~~Ptacin~~Herencia and Abraham ~~and~~as well as club ~~membership~~ dues for ~~Mr. Ptacin.~~
Messrs. Herencia and Paracchini, and cell phone credits/reimbursements for all.

(b)

Reflects Company contributions under the Byline Bancorp 401(k) Plan consistent with company policies for all Byline employees.

(c)

Reflects life insurance premiums paid for the benefit of each of our named executive officers consistent with company policy for all Byline employees. Includes premiums paid by the Byline Bank for additional executive life insurance policies for ~~Mr.~~Messrs. Herencia and Paracchini and Ms. Corby.

~~(4)~~: ~~Mr. Ptacin joined Byline in May 2018 in connection with our acquisition of First Evanston Bancorp, Inc. He was appointed an executive officer during 2019.~~

~~Byline Bancorp, Inc.~~ ~~2021 Proxy Statement 31~~

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~~Executive Compensation~~

(d)

Reflects club membership dues.

(e)

Reflects credit for mobile phone services.

Narrative Disclosure to Summary Compensation Table

Base salary

Each named executive ~~officer's~~officer’s base salary is a fixed component of compensation for each year for performing specific job duties and functions. The total base salaries earned by our named executive officers in fiscal years ~~2018,~~ 2019, 2020 and ~~2020~~2021 are disclosed in the Summary Compensation Table above.

Base salaries for our named executive officers are reviewed annually by the Compensation ~~Committee. Messrs. Paracchini's, Ms. Corby's~~Committee and ~~Mr. Abraham's base salaries~~ are established pursuant to their employment agreement with Byline Bank, as described under ~~"Employment~~“Employment agreements with Mr. Herencia, Mr. Paracchini, Ms. Corby and Mr. ~~Abraham"~~Abraham” below, and “Agreement with Mr. Herencia” above, but are subject to review and approval of the Compensation Committee.

Annual incentive

Our named executive officers participate in ~~Byline's~~Byline’s Executive Incentive Plan, which was adopted in 2014 and is an annual incentive plan under which earned awards are determined following the end of each year based on corporate and individual achievement during the year. Results are assessed against performance goals and targets that are established for the fiscal year, as described further below.


Named Executive Officer	~~2020 Goals Weight~~
		2021 Goals Weight
Roberto R. Herencia		Corporate Goals: 70%
Roberto R. Herencia		Individual Performance Goals: 30%
Alberto J. Paracchini		Corporate Goals: 70%
Alberto J. Paracchini			Individual Performance Goals: 30%
Lindsay Corby		Corporate Goals: 70%
Lindsay Corby			Individual Performance Goals: 30%
~~Brogan Ptacin~~	~~Corporate Goals: 70%~~
	~~Individual Performance Goals: 30%~~
Thomas Abraham		Corporate Goals: 100%
(1)

~~Named~~

(1)

For Mr. Abraham the goal is calculated based on the Small Business Capital unit score card.

For 2021, named executive officers can earn up to a maximum of 150% of their target annual incentive awards and annual incentive awards may be as low as 0% if the ~~Company's~~Company’s performance target is not met. The Compensation Committee has discretion to adjust awards in light of credit quality, regulatory compliance and financial result deemed relevant. Executives must be employed on the date of payment in order to receive payment of an earned award.

For 2022, named executive officers can earn up to a maximum of 200% of their target annual incentive awards, and annual incentive awards may be as low as 0% if the Company’s performance target is not met. The Compensation Committee has discretion to adjust awards in light of credit quality, regulatory compliance and financial result deemed relevant. Executives must be employed on the date of payment in order to receive payment of an earned award. The scorecard will reflect changes in some metrics for 2022.

The corporate scorecard measures ~~included~~include the following four categories of metrics. In addition, the Company must meet a threshold of equal to or greater than ~~90%~~75% of budgeted net income to trigger an award payout under the Executive Incentive Plan.

Categories Loan Quality/
Operational Soundness Growth Expense
Management Profitability

Weight 30% 10% 20% 40%
Metrics Classified Asset Ratio: 7.50% Net Loan Growth: 5% Efficiency Ratio: 20% ROA: 40%

NPAs/Assets: 7.50%

Net Deposit Growth: 2.50%

100% Satisfactory Loan Review: 7.50%

Net Core Deposit Growth: 2.50%

Internal Audit: 7.50%

Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement

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~~Executive Compensation~~

Categories	Loan Quality/ Operational Soundness	Growth	Profitability
Weight	20%	20%	60%
Metrics	Classified Asset Ratio: 10%	Net Loan Growth: 10%(1)	ROA: 40%
	Non-Performing Assets/ Assets: 10%	Total Core Deposit: 10%	Efficiency Ratio: 10%
			Fee Income/Average Assets Ratio: 10%

(1)

Excludes loans from the Paycheck Protection Program.

In ~~2020,~~2021, target annual cash incentives under the Executive Incentive Plan for each of our named executive officers were a percentage of the named executive ~~officer's~~officer’s base salary. The following table presents each named executive ~~officer's~~officer’s annual incentive opportunity, percentage of goal achievement and award payout under the Executive Incentive Plan.

Named Executive Officer	Target Bonus % of Base Salary			Target Bonus Amount			Payout for Corporate Achievement			Payout for Individual Performance			Total Incentive Payout			Total Incentive Payout % of Target
Roberto R. Herencia		75	%		$	618,750		$	697,331		$	185,625		$	928,125		150	%
Alberto J. Paracchini		55	%		$	338,000		$	381,208		$	126,167		$	507,375		150	%
Lindsay Corby		40	%		$	154,000		$	173,558		$	57,442		$	231,000		150	%
Thomas Abraham		30	%		$	120,000		$	144,000(1)			—		$	144,000		120	%

(1)

Named Executive Officer
Target Bonus
% of
Base Salary
Target
Bonus
Amount
Payout for
Corporate
Achievement
Payout for
Individual
Performance
Total
Incentive
Payout
Total
Incentive
Payout
% of Target

Alberto J. Paracchini
55% $ 338,250 $ 177,582 $ 76,106 $ 253,688 75%
Lindsay Corby
40% $ 144,000 $ 75,600 $ 32,400 $ 108,000 75%
Brogan Ptacin
40% $ 131,200 $ 68,880 $ 26,568 $ 95,448 73%
Thomas Abraham
30% $ 120,000 $ 84,000 N/A $ 84,000 70%

Based on the Small Business Capital unit scorecard performance.

Long-term incentive

The named executive officers participate in a Long-term Incentive Program ~~("LTIP"~~(“LTIP”) that provides a variable pay opportunity through a combination of performance shares and restricted shares. The program is designed to reinforce the long-term alignment of the ~~Company's~~Company’s executives with the interests of our stockholders. Performance shares are intended to strengthen our pay-for-performance philosophy while time-vested restricted shares are granted to promote share ownership and executive retention.

All awards under the LTIP are granted through the Byline Bancorp, Inc. 2017 Omnibus Incentive Compensation Plan. The following table presents each named executive ~~officer's~~officer’s annual long-term incentive target for ~~2020:~~

2021:

Named Executive Officer(2)	Target as a % of Base Salary			Target $ Performance-Vesting Restricted Shares(1)			Target $ Time-Vesting Restricted Shares(1)
Roberto R. Herencia		85	%		$	350,625		$	350,625
Alberto J. Paracchini		60	%		$	184,500		$	184,500
Lindsay Corby		60	%		$	115,500		$	115,500
Thomas Abraham		30	%			—		$	120,000

(1)

Named Executive Officer
Target as a % of Base Salary
Target $ Performance-Vesting Restricted Shares⁽¹⁾
Target $ Time-Vesting Restricted Shares⁽¹⁾

Alberto J. Paracchini
60 % $ 141,260 $ 141,260
Lindsay Corby
50 % $ 90,000 $ 90,000
Brogan Ptacin
40 % $ 65,600 $ 65,600
Thomas Abraham⁽²⁾
30 % $ 0 $ 120,000

~~(1)~~: The number of shares granted is determined by the closing share price on the date of the grant.

(2)

For Mr. Abraham, the LTI target is 30% of base salary. 100% of ~~Mr. Abraham's~~the target award is in the form of time-based restricted share ~~awards. The~~ awards ~~vest equally over three years~~based on the ~~anniversary date~~Small Business Capital Business Unit scorecard. As a result of the ~~grant. Awards vest automatically upon 1) death, 2) termination~~scorecard he received 45% of ~~employment due to disability~~base salary or $180,000 in time based restricted shares. For Mr. Herencia, Mr. Paracchini and ~~3) termination upon the completion of a change-in-control.~~

•: ~~Time-based Restricted Shares—~~Ms. Corby, 50% of the ~~shares are awarded with a service-based vesting schedule.~~target award is in the form of time-based restricted share award and 50% of the target award is in the form of performance-based restricted share award.

•

Time-based Restricted Shares Awards vest equally over three years on the anniversary date of the grant. Awards vest automatically upon 1) death, 2) termination of employment due to disability and 3) termination upon the completion of a change-in-control.

•

Performance ~~Shares—50% of the shares~~Shares Awards are awarded with performance-based vesting criteria. Vesting is dependent on the achievement of specified goals and is generally measured at the end of a three-year performance period ~~("Performance Period")~~. At

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the end of the Performance Period, the Compensation Committee will determine the level of goal attainment and determine the number of performance shares that actually vest.

Unless stated otherwise in the award agreement, upon 1) death, 2) termination of employment due to disability and 3) retirement, the Participant receives an award based on actual performance at the end of the Performance Period, prorated for the period of time in which the Participant was actively employed. Awards continue to vest upon a change-in-control if the successor entity assumes the existing awards. If a Participant is terminated within one year of the completion of a change-in-control, performance shares vest at target-level performance, without proration.

~~Byline Bancorp, Inc.~~ ~~2021 Proxy Statement 33~~

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Similarly, if the successor entity does not assume the existing awards, the performance shares vest at target-level performance, without proration.

Average return on assets (ROA), defined as net income as a percent of average assets, was approved by the Compensation Committee as the Corporate metric for the 2020—2022 LTIP. For this Performance Period, earned awards will vest at the end of the Performance Period, based on relative average return on assets using an index of publicly traded bank holding companies ranging in asset size from 50% to 200% of ~~Byline's~~Byline’s total assets. Performance will be measured cumulatively at the end of the Performance Period. Threshold, target and superior performance levels are set at the 25^th, 50^th and 75^th percentiles of the peer index, respectively.

Our named executive officers may earn 25% of their target opportunity for threshold-level performance up to 100% of their target opportunity, and up to 150% of their target opportunity for superior-level performance. Amounts between threshold and superior are interpolated to reward incremental achievement and no amounts are paid with respect to a particular performance metric if actual results are below threshold.

Adjustment to Compensation Metrics

The Board of Directors and the Compensation Committee are actively monitoring the effects of the COVID-19 pandemic on the economy, the equity trading markets (including, in particular, the value of equity securities of financial institutions) and our operations and future results. In light of these developments, the Compensation Committee will evaluate the actual and potential effects on our business results, financial condition and stockholder value. Performance goals and the incentives associated with our executive and management compensation and incentive plans could be modified, and the Board of Directors maintain discretion to adjust plans and award payouts to appropriately reflect performance. Any material changes will be disclosed in accordance with applicable disclosure obligations.

Byline Bancorp, Inc. 2022 Proxy Statement 37

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Outstanding Equity Awards at Fiscal Year End

As of December 31, ~~2020,~~2021, our named executive officers held outstanding equity-based awards of the Company as listed in the table below.

	Option Awards							Stock Awards
Name	Date	Number of Securities Underlying Unexercised Options (#) Exercisable(1)		Number of Securities Underlying Unexercised Options (#) Unexercisable	Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (#)	Option Exercise Price	Option Expiration Date(2)	Grant Date	Number of Shares or Units of Stock that Have Not Vested (#)	Number of Shares or Units of Stock that Have Not Vested ($)	Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Vested (#)	Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Vested ($)
Roberto R. Herencia	6/26/2015		428,988	—	—	$11.18	6/26/2025	2/19/2021	72,983	1,996,085	—	—
Alberto J. Paracchini	6/26/2015		428,988	—	—	$11.18	6/26/2025	4/2/2019			5,684	155,457.40
								4/2/2019	1,894	51,801
								2/28/2020			8,072	220,769
								2/28/2020	5,381	147,170
								2/22/2021			9,526	260,536
								2/22/2021	9,526	260,536
Lindsay Corby	6/26/2015		97,496	—	—	$11.18	6/26/2025	4/2/2019			3,201	87,547
								4/2/2019	1,067	29,182
								2/28/2020			3,772	103,164
								2/28/2020	2,514	68,758
								2/22/2021			4,833	132,183
								2/22/2021	4,833	132,183
Thomas Abraham	—		—	—	—	—	—	12/19/2019	2,557	69,934	—	—
								2/28/2020	4,572	125,044	—	—
								2/22/2021	6,196	169,461

(1)

Option Awards

Stock Awards

Name
Date
Number of
Securities
Underlying
Unexercised
Options (#)
Exercisable
Number of
Securities
Underlying
Unexercised
Options (#)
Unexercisable(1)
Equity
Incentive
Plan Awards:
Number of
Securities
Underlying
Unexercised
Unearned
Options
(#)
Option
Exercise
Price
Option
Expiration
Date(2)
Grant
Date
Number of
Shares or
Units of
Stock
that Have
Not Vested
(#)
Number of
Shares or
Units of
Stock
that Have
Not Vested
($)
Equity
Incentive
Plan
Awards:
Number of
Unearned
Shares,
Units or
Other
Rights
That Have
Not Vested
(#)
Incentive
Plan
Awards:
Market or
Payout
Value of
Unearned
Shares,
Units or
Other
Rights
That Have
Not Vested
($)

Alberto J. Paracchini
6/26/2015 428,988 — — $ 11.18 6/26/2025 4/23/2018 1,614 24,936 — —
4/23/2018 — — 4,842 74,809
4/2/2019 3,789 58,540 — —
4/2/2019 — — 5,684 87,818
2/28/2020 8,072 124,712 — —
2/28/2020 — — 8,072 124,712
Lindsay Corby
6/26/2015 97,496 — — $ 11.18 6/26/2025 4/23/2018 828 12,793 — —

4/23/2018 — — 2,485 38,393

4/2/2019 2,134 32,970 — —

4/2/2019 — — 3,201 49,455

2/28/2020 3,772 58,277 — —

2/28/2020 — — 3,772 58,277
Thomas Abraham
— — — — — — 12/19/2019 5115 79,027 — —
2/28/2020 6,858 105,956 — —
Brogan Ptacin
5/31/2018 9,450 — — $ 10.59 12/20/2021 6/4/2018 7,115 109,927 — —

5/31/2018 9,450 — — $ 10.59 12/17/2023 4/2/2019 1,933 29,865 — —

5/31/2018 11,812 — — $ 11.65 12/16/2024 4/2/2019 — — 2,900 44,805

5/31/2018 11,812 — — $ 11.65 12/15/2025 2/28/2020 3,158 48,791 — —

5/31/2018 9,450 — — $ 12.70 12/20/2026 2/28/2020 — — 3,158 48,791

~~(1)~~: These options were granted pursuant to the Byline Equity Incentive Plan approved by the Board of Directors in 2015 and were earned based on the achievement of performance goals ~~as described under "Stock Options awarded under the Byline Bancorp Equity Incentive Plan" above~~ and, except with respect to certain qualifying terminations, the ~~participant's~~participant’s continued employment on the date of such achievement.
In June 2017, the Board of Directors terminated the Byline Equity Incentive Plan in connection with our July 2017 IPO, such that no new awards may be made under the Byline Equity Incentive Plan. Awards previously granted under the Byline Equity Incentive Plan, however, remain outstanding.

(2)

The options may expire earlier than the expiration date listed in the case of termination of employment, a ~~participant's~~participant’s breach of their Agreement to Protect Company Interests or a change in control.

38 Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement

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~~Executive Compensation~~

Employment Agreements with Named Executive Officers

We have entered into employment agreements with each of Mr. Herencia, Mr. Paracchini, Ms. Corby and Mr. Abraham

~~We have entered into employment agreements with Mr. Paracchini, Ms. Corby and Mr. Abraham ("~~ (“Employment ~~Agreements"~~Agreements”) as follows:


Named Executive Officer			Entity who entered into the ~~Agreement~~		~~Effective Date~~ ~~of the~~ Agreement	~~Initial Term~~		~~Extensions~~		~~Renewals~~		~~Position~~		~~Reporting to~~
							Effective Date of the Agreement			Initial Term			Extensions			Renewals		Position	Reporting to
~~Alberto J. Paracchini~~Roberto R. Herencia		Byline Bancorp and Byline Bank	~~01/21/2016~~	02/12/2021		3 years			Automatic 1-year extension unless notification is provided		~~Renewed in January of 2021~~	N/A	~~President~~		Executive Chairman and Chief Executive Officer		Board of Directors~~(1)~~
~~Lindsay Corby~~Alberto J. Paracchini	~~Byline Bancorp, Inc. and~~	Byline Bank	~~07/07/2019~~	01/21/2016	~~3-year anniversary from acceptance of Agreement~~	3 years			Automatic 1-year extension unless notification is provided		~~N/A~~	Renewed in January of 2021	~~Chief Financial Officer~~		President of Byline Bancorp, President & CEO of Byline Bank		Board of Directors(1)
~~Thomas Abraham~~Lindsay Corby		Byline Bancorp. and Byline Bank	~~12/16/~~	07/07/2019		3-year anniversary from acceptance of Agreement			Automatic 1-year extension unless notification is provided			N/A			Chief Financial Officer		CEO of Byline Bancorp(1)
Thomas Abraham		Byline Bank		12/16/2019		3-year anniversary from acceptance of Agreement			Automatic 1-year extension unless notification is provided			N/A			President of the Small Business Capital		CEO of Byline Bank(1)

(1)

Currently reporting to Executive Chairman and CEO of ~~Byline.~~Byline Bancorp.

Material terms of the Employment Agreements include:

Named Executive Officer

Annual
Base Salary(1)

Participation
in Executive
Incentive Plan
(“EIP”)

EIP Annual
Bonus
Opportunity(2)

Participation
in Long Term
Incentive
program
(“LTIP”)(2)

Roberto R. Herencia

825,000

Yes

up to 75% of annual base salary

Yes

Alberto J. Paracchini

350,000

Yes

up to 75% of annual base salary

Yes

Lindsay Corby

330,000

Yes

40% of annual base salary

Yes

Thomas Abraham

400,000

Yes

30% of annual base salary

Yes

(1)

Named Executive Officer
Annual
Base Salary⁽¹⁾
Participation
in Executive
Incentive Plan
("EIP")
EIP Annual
Bonus
Opportunity⁽²⁾
Participation
in Long Term
Incentive
program
("LTIP")⁽²⁾

Alberto J. Paracchini
$ 350,000 Yes up to 75% of annual base salary Yes
Lindsay Corby
$ 330,000 Yes 40% of annual
base salary
Yes
Thomas Abraham
$ 400,000 Yes 30% of annual
base salary Yes

~~(1)~~: The amount of Base Salary is reviewed by the Compensation Committee at least annually.

(2)

~~(2)~~

Annual targets are approved by the Board (or a committee thereof) based upon achievement of applicable performance objectives as determined in the sole discretion of the Board (or a committee thereof).

Byline Bancorp, Inc. ~~2021~~ 2022 Proxy Statement 35

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~~Executive Compensation~~

Employment Agreements also include the following severance benefits that are, in each case, subject to signing a release:


Named Executive Officer		Termination without ~~"cause"~~“cause”(1) and not due to disability or executive resigns for ~~"good reason"~~		“good reason”		Termination without ~~"cause"~~“cause” and not due to disability(1) or executive resigns for ~~"good~~“good ~~reason"~~reason” following a ~~"change~~“change in ~~control"~~control”~~(4)~~(5)		Payment for "“special change in ~~control"~~control”~~(6)~~(7)		Meaning of ~~"good~~“good ~~reason"~~	reason”	Termination due to Death or Disability~~(7)~~(8)
Roberto R. Herencia			(1) 2 times annual base salary + the Applicable COBRA Amount(3) payable in cash over 24 month installments; and (2) prorata bonus under the EIP(2)		(1) the accrued amounts and any unpaid EIP bonus; (2) a pro rata bonus under the EIP; and (3) the sum of: (a) 2.99 times the then current annual base salary + (b) the target IP bonus amount with respect to a termination of employment which occurs prior to February 12, 2023, and the higher of two immediately preceding completed fiscal years earned bonuses with respect to a termination after February 12, 2023, + (c) the Applicable COBRA Amount (6)		N/A	(1) any material reduction in base salary; (2) any material adverse change in title, position, authority, reporting relationships or duties; (3) the requirement to relocate the principal place of employment to a location in excess of fifty miles from his principal work location or (4) the failure to nominate to, or removal from, the Board of Directors of Byline or Byline Bank	Payments to which the Executive is entitled to, in the event of death or disability(9), plus a lump sum cash amount of $750,000 in case of death which can be in the form of a life insurance policy, at the discretion of Byline.
Alberto J. Paracchini	(1) 1.5 times annual base salary + COBRA Benefits~~(3)~~(4) payable in cash over 18 month installments; and (2) prorata bonus under the EIP(2)		(1) the accrued amounts and any unpaid EIP bonus; (2) a pro rata bonus under the EIP; and (3) the sum of: (a) 1.5 times the then current annual base salary + (b) the higher of the two immediately preceding completed fiscal ~~years'~~years’ earned bonuses, + (c) the COBRA benefits~~(5)~~(6)		severance payments following a ~~"change~~“change in ~~control"~~control” with such pro rata bonus being paid based on achievement of applicable performance goals through the date of the ~~"special~~“special change in ~~control"~~control”		(1) any material reduction in base salary; (2) any material adverse change in title, position, authority, reporting relationships or duties; (3) the requirement to relocate the principal place of employment to a location in excess of thirty five 35 miles from his principal work location or (4) the failure to nominate to, or removal from, the Board of Directors of Byline Bank	Payments to which the Executive is entitled to, in the event of death or disability~~(8)~~(9), plus a lump sum cash amount equal to 200% of base salary~~(9)~~(10)
Lindsay Corby	(1) 1 times annual base salary + COBRA Benefits~~(3)~~(4) payable in cash over 12 month installments; and (2) prorata bonus under the EIP(2)		(1) the accrued amounts and any unpaid EIP bonus; (2) a pro rata bonus under the EIP; and (3) the sum of: (a) 2 times the then current annual base salary + (b) the higher of the two immediately preceding completed fiscal ~~years'~~years’ earned bonuses, + (c) the COBRA benefits~~(5)~~(6)		N/A		(1) any material reduction in base salary; (2) any material adverse change in title, position, authority, reporting relationships or duties; (3) the requirement to relocate the principal place of employment to a location in excess of thirty five 50 miles from his principal work location	Payments to which the Executive is entitled to, in the event of death or disability~~(8)~~(9), plus a lump sum cash amount equal to 200% of base salary~~(9)~~(10)

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Named Executive
Officer

Termination without
“cause”(1) and
not due to
disability or
executive resigns
for “good reason”

Termination without
“cause” and not
due to disability(1)
or executive
resigns for “good
reason” following
a “change in
control”(5)

Payment for
“special change in
control”(7)

Meaning of “good
reason”

Termination
due to Death
or Disability(8)

Thomas Abraham

(1) 1 times annual base salary + COBRA Benefits~~(3)~~(4) payable in cash over 12 month installments; and (2) prorata bonus under the EIP(2)

(1) the accrued amounts and any unpaid EIP bonus; (2) a pro rata bonus under the EIP; and (3) the sum of: (a) 1 time the then current annual base salary + (b) the higher of the two immediately preceding completed fiscal ~~years'~~years’ earned bonuses, + (c) the COBRA benefits~~(5)~~(6)

N/A

(1) any material reduction in base salary; (2) any material adverse change in title, position, authority, reporting relationships or duties; (3) the requirement to relocate the principal place of employment to a location in excess of thirty five 50 miles from his principal work location

Payments to which the Executive is entitled to, in the event of death or disability~~(8)~~(9)

(1): ~~"Cause"~~

“Cause” generally means: (1) willful and continued failure to perform substantially your duties; (2) willfully engaging in illegal conduct, an act of dishonesty or gross misconduct related to the performance of your duties and responsibilities; (3) being charged with a crime involving moral turpitude, dishonesty, fraud, theft or financial impropriety; (4) willful violation of a material requirement of any applicable code of ethics

36 ~~Byline Bancorp, Inc.~~ ~~2021 Proxy Statement~~

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or standards of conduct of Byline or Byline Bank, or violation of a fiduciary duty; or (5) a breach of the Agreement Protecting Company Interests.

(2)

In addition to any accrued but unpaid compensation or benefits and any unpaid bonus earned under the Executive Incentive Plan with respect to any fiscal year ending on or preceding the date of termination.

(3)

“Applicable COBRA Amount” means 18 times the monthly COBRA premium applicable to you to continue health, dental and vision care benefits you have in effect as of the date of termination.

(4)

The excess of the applicable COBRA premiums for health, dental and vision benefits on the date of termination (provided that he or she elects COBRA continuation coverage) over the amount of health, dental and vision premiums charged to active employees of Byline for like coverage on the date of termination (the ~~"COBRA Benefits"~~“COBRA Benefits”).

~~(4)~~

(5)

“Change in ~~Control"~~Control” as defined under the Employment Agreements. Payments related to a ~~"Change~~“Change in ~~Control"~~Control” will be done within two years (for Mr. Herencia and Mr. Paracchini) or one year (for Ms. Corby and Mr. Abraham).

~~(5)~~

(6)

Payable in a lump sum within 15 days after the ~~executive's~~executive’s signed release becomes effective.

~~(6)~~

(7)

“Special Change in ~~Control"~~Control” as defined in Mr. ~~Paracchini's~~Paracchini’s Employment ~~Agreement".~~

~~(7)~~

"Agreement.

(8)

“Death and ~~Disability"~~Disability” as defined in the Employment Agreements.

~~(8)~~

(9)

Each of the Executives or their respective estates, would be entitled to receive, in addition to any accrued amounts, any unpaid bonus earned under the EIP with respect to any fiscal year ending on or preceding the date of termination and a pro rata portion of his or her EIP bonus for the fiscal year in which the termination occurs, payable at the time that such bonuses are paid to other senior executives for such year.

~~(9)~~

(10)

But not exceeding $750,000 which benefit may be provided through the purchase of a life insurance policy.

As a condition to their respective employment agreements, ~~Mr. Paracchini, Ms. Corby and Mr. Abraham~~each of the Named Executive Officers entered into an Agreement Protecting Company Interests with Byline and Byline Bank. The Agreement Protecting Company Interests contains (1) a confidentiality provision regarding the use and disclosure of confidential information during the term of employment and after, (2) a customer and employee non solicit during employment for eighteen (18) months following termination of employment (for Mr. Herencia and Mr. Paracchini) and twelve (12) months (for Ms. Corby and Mr. Abraham), and (3) assignment of inventions and non-disparagement provisions.

~~Retention Agreements with Mr. Ptacin~~

In connection with our acquisition of First Evanston Bancorp, Inc. in 2018, we entered into a retention agreement with Mr. Ptacin, pursuant to which, in consideration of the termination of his executive's change in control agreement previously entered into with First Evanston Bancorp as well as his efforts in the interest of the long-term success of Byline following the merger, we agreed to pay him $929,186 in four equal payments over a two-year period from in November 2018 to May 2020. In connection with entering into the Retention Agreement, Mr. Ptacin was also required to enter into Byline's Agreement Protecting Company Interests.

~~Change in Control Severance Agreement with Mr. Ptacin~~

Also in connection with our acquisition of First Evanston Bancorp, Inc. in 2018, we entered into an agreement with Mr. Ptacin pursuant to which we agreed to pay him severance of $500,000 in the event his employment is terminated by the Bank without cause (as defined in the agreement) or if Mr. Ptacin resigns for Good Reason (as defined in the agreement) at any time on or within one year after a Change in Control (as defined in the agreement) (the "Change in Control Severance Benefit").

Payment of the Change in Control Severance Benefit to Mr. Ptacin is subject to compliance by him with certain provisions of the agreement, including certain confidentiality and restrictive covenant obligations, delivery of an executed general release of claims, and his resignation from all positions with the Bank and its affiliates, and is payable in substantially equal payments over a period of 12 months following his termination. To the extent Mr. Ptacin is otherwise entitled to any cash severance payments or severance benefits (other than retention bonuses) pursuant to any other agreement, plan or arrangement with or maintained by us, he will only be entitled to the Change in Control Severance Benefit in lieu of any such other severance payments or benefits.

Savings and Retirement Plans

Byline maintains the Byline Bancorp, Inc. 401(k) Plan (the ~~"401(k) Plan"~~“401(k) Plan”), which is a tax qualified defined contribution savings plan for all eligible employees of Byline, including each of our named executive officers. Under the 401(k) Plan, eligible employees may contribute up to 90% of their pay (subject to Internal Revenue Service limitations) to the 401(k) Plan. Contributions are withheld by payroll deductions on a pre-tax basis. Byline matches 100% of the first 3% of the pay that an employee contributes on a pre-tax basis to the 401(k) Plan and 50% of the next 2% of the pay that an employee contributes on a pre-tax basis to the 401(k) Plan.

~~Byline Bancorp, Inc.~~ ~~2021 Proxy Statement 37~~

~~Table of Contents~~

~~Executive Compensation~~

Stock Ownership and Retention Guidelines

Overview.

~~Overview.~~ In an effort to align the financial interests of our executive officers and directors with those of our stockholders and to promote our long-term business objectives, our directors and executive officers are subject to

Byline Bancorp, Inc. 2022 Proxy Statement 41

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Executive Compensation

certain stock ownership and retention requirements pursuant to guidelines established by our Board and administered by the Compensation Committee.

Under these ownership guidelines, our non-employee directors ~~CEO~~ and ~~other~~ executive officers are expected to accumulate shares of our common stock to meet the applicable ownership level within five years of their election or appointment. It is expected that they will acquire the required ownership level by retaining ownership of their equity compensation from the Company. Until the required level is achieved, the individual must retain at least 50% of his or her vested full value shares received as equity compensation.

Minimum Ownership Guidelines Applicable to Our Executive Officers. Under the guidelines, our Executive Chairman and CEO is expected to own a minimum number of shares of our common stock with an aggregate value equal to five times his base salary, and our President ~~are~~is expected to own a minimum number of shares of our common stock with an aggregate value equal to three times ~~their~~his base salary. Our other executive officers are required to own a minimum number of shares of our common stock with an aggregate value equal to one time their base ~~salary~~

salary.

Minimum Ownership Guidelines Applicable to Our Directors. Our non-employee Directors are required to own a minimum number of shares of our common stock with an aggregate value equal to three times the amount of the Board ~~cash retainer.~~

retainer under our Director Compensation Program.

Incentive Repayment (Clawback) Policy

We have a clawback policy that, in the event of a restatement of our financial statements to correct a material non-compliance with any applicable financial reporting requirement, allows the Compensation Committee to seek recovery or forfeiture from any executive officer of the portion of incentive compensation that was received by or vested in the executive officer during the three-year period prior to the determination that a restatement was required and that would not have been earned had performance been measured on the basis of the restated results if the Compensation Committee determines that the executive engaged in intentional fraud or gross misconduct or was otherwise directly or indirectly responsible for the restatement.

Hedging and Pledging Policy

Consistent with our ~~Board's~~Board’s belief that significant stock ownership by directors and executive officers strengthens the alignment of their interests with our stockholders and promotes our long-term business objectives, we do not permit our directors and executive officers to enter into hedging and monetization transactions or to engage in short sale transactions in the ~~Company's~~Company’s securities. We believe that such transactions can mitigate or eliminate the economic risk of ownership and disincentivize such individuals from seeking to improve the ~~Company's~~Company’s performance and consequently impair their alignment with our ~~stockholders'~~stockholders’ interests.

We also do not permit our directors and executive officers to enter into pledge arrangements involving their shares of our common stock. We believe such arrangements present a risk that the individual could be pressured or forced to sell our stock to meet loan requirements, which we believe would be inconsistent with our belief in aligning their interests with long-term stockholder interests, and potentially could cause us reputational harm and violate internal policies regarding transacting in our stock when such person is aware of material nonpublic information or otherwise prohibited from trading in our stock.

A copy of the hedging and pledging policy is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab.

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Certain Relationships and Related Transactions

Byline or one of its subsidiaries may occasionally enter into transactions with certain ~~"related persons"~~“related persons”. Related persons include our executive officers, directors, 5% or more beneficial owners of our common stock, immediate family members of these persons and entities in which one of these persons has a direct or indirect material interest. We generally refer to transactions with these related persons as ~~"related~~“related party ~~transactions"~~transactions”.

Related Party Transaction Policy

Our Board of Directors has adopted a written policy governing the review and approval of transactions with related parties that will or may be expected to exceed $120,000 in any fiscal year. The policy provides that related party transactions are reviewed and, if deemed appropriate, approved or ratified by our Audit Committee. Upon determination by our Audit Committee that a transaction requires review under the policy, the material facts are required to be presented to the Audit Committee. In determining whether or not to approve a related party transaction, our Audit Committee will take into account, among other relevant factors, whether the related party transaction is in our best interests, whether it involves a conflict of interest and the commercial reasonableness of the transaction. In the event that we become aware of a related party transaction that was not approved under the policy before it was entered into, our Audit Committee will review such transaction as promptly as reasonably practical and will take such course of action as may be deemed appropriate under the circumstances. In the event a member of our Audit Committee is not disinterested with respect to the related party transaction under review, that member may not participate in the review, approval or ratification of that related party transaction.

Certain decisions and transactions are not subject to the related party transaction approval policy, including: (i) decisions on compensation or benefits relating to directors or executive officers and (ii) indebtedness to us in the ordinary course of business, on substantially the same terms, including interest rate and collateral, as those prevailing at the time for comparable loans with persons not related to us and not presenting more than the normal risk of collectability or other unfavorable features.

A copy of the related party transaction policy is available on our website at www.bylinebancorp.com~~www.bylinebancorp.com~~ under the ~~"Governance Documents"~~“Governance Documents” tab.

Related Party Transactions

In the ordinary course of our business, we have engaged and expect to continue engaging through our bank in ordinary banking transactions with our directors, executive officers, their immediate family members and companies in which they may have a 5% or more beneficial ownership interest, including loans to such persons. Any such loan was made on substantially the same terms, including interest rates and collateral, as those prevailing at the time such loan was made as loans made to persons who were not related to us. These loans do not involve more than the normal credit collection risk and do not present any other unfavorable features to us.

Foreign National Commitments

Certain of our stockholders are foreign nationals, and we and certain of these foreign national stockholders have entered into commitments with the Federal Reserve that restrict our ability to engage in certain business transactions without the consent of the Federal Reserve. In particular, subject to certain limited exceptions, we are not permitted to engage in or be a party to any business transaction or relationship with a company that is controlled by these foreign national stockholders or by their immediate families. In addition, Byline Bank is not permitted to engage in or be a party to any extension of credit, as defined in the Federal ~~Reserve's~~Reserve’s Regulation O, to these foreign national stockholders, their immediate families or any company controlled by these foreign national stockholders. Byline Bank is also not permitted to engage in or be a party to any covered transaction, as defined in the Federal Reserve Act and the Federal ~~Reserve's~~Reserve’s Regulation W, with any company that is controlled by these foreign national stockholders.

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Stockholder Proposals

The matters to be considered and brought before any annual or special ~~meeting~~meetings of ~~Byline's~~Byline’s stockholders shall be limited to only those matters as shall be brought properly before such meeting in compliance with the procedures set forth in ~~Byline's~~Byline’s By-laws. For proposals to be brought by a Byline stockholder and voted upon at an annual meeting, including with respect to the nomination of a director, the stockholder must file written notice of the proposal to ~~Byline's~~Byline’s secretary not less than 90 days nor more than 120 days prior to the anniversary date of the annual meeting for the preceding year. However, if the annual meeting is not scheduled to be held within a period that commences 30 days before such anniversary date and ends within 60 days after such anniversary date (an annual meeting date outside such period being referred to herein as an ~~"Other~~“Other Meeting ~~Date"~~Date”), the ~~stockholder's~~stockholder’s notice shall be given in the manner provided in ~~Byline's~~Byline’s By-laws by the later of the close of business on (1) the date 90 days prior to such Other Meeting Date or (2) the 10th day following the date such Other Meeting Date is first publicly announced or disclosed. In the event that the number of directors to be elected to the Board of Directors is increased and either all of the nominees for director or the size of the increased Board is not publicly announced or disclosed by Byline at least 100 days prior to the first anniversary of the preceding ~~year's~~year’s annual meeting, a ~~stockholder's~~stockholder’s notice will also be considered timely, but only with respect to nominees for any new positions created by such increase, if it is delivered to ~~Byline's~~Byline’s Secretary not later than the close of business on the 10th day following the first date all of such nominees or the size of the increased Board is publicly announced or disclosed. The ~~stockholder's~~stockholder’s notice to the secretary must include, among other things set forth in ~~Byline's~~Byline’s By-laws: (a) a brief description and the text of the proposal desired to be brought before the meeting and the reasons for conducting such business at the meeting; (b) the name and address, as they appear on ~~Byline's~~Byline’s books, of the stockholder proposing such business; (c) the number of shares of ~~Byline's~~Byline’s common stock or other equity or debt securities beneficially owned by such stockholder on the date of such ~~stockholder's~~stockholder’s notice; and (d) any financial or other interest of such stockholder in the proposal. Stockholders should refer to the full text of our advance notice provisions contained in Section 1.12 of our Amended and Restated By-Laws.

Written notice of stockholder proposals to be brought at ~~Byline's 2022~~Byline’s 2023 Annual Meeting of Stockholders in accordance with the above procedures must be delivered to ~~Byline's~~Byline’s secretary no earlier than February ~~8, 2022~~7, 2023, and no later than March ~~10, 2022,~~9, 2023, unless an Other Meeting Date occurs with respect to the ~~2022~~2023 Annual Meeting, in which case the notice delivery requirements will be as set forth above with respect to meetings with Other Meeting Dates.

In lieu of the foregoing notice procedures, stockholders seeking to submit a proposal for inclusion in our proxy statement for the ~~2022~~2023 Annual Meeting must follow the procedures and meet the other requirements outlined in Rule 14a-8 of the Exchange Act, and we must receive such proposal at our principal executive offices on or before December ~~28, 2021.~~

26, 2022.

Any proposals, notices or nominations must be sent to the Office of the Corporate Secretary, Byline Bancorp, Inc., 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601. A copy of our By-laws is available upon written request to the Corporate Secretary at the address noted above. Additionally, a copy of our By-laws, which we included as an exhibit to our Form S-1 filed with the SEC on June 19, 2017, can be accessed through the ~~SEC's~~SEC’s website at www.sec.gov~~www.sec.gov~~.

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Delivery of Documents to Stockholders Sharing an Address

The ~~SEC's~~SEC’s proxy rules permit companies and intermediaries to satisfy delivery requirements for proxy statements with respect to two or more stockholders sharing an address by delivering a single proxy statement and annual report with separate proxy cards to those stockholders. This method of delivery, often referred to as ~~"householding,"~~“householding,” reduces the amount of duplicate information that stockholders receive and lowers printing and mailing costs for companies. We are not householding materials for our registered stockholders in connection with the Annual Meeting; however, we understand that certain intermediaries will household our proxy materials.

If a brokerage, bank or other nominee holds your shares, this means that only one Proxy Statement and annual report will be delivered to multiple stockholders sharing an address. Any stockholder residing at such an address who would like to receive an individual copy of the materials, or who is receiving multiple copies of our Proxy Statement and Annual Report and would prefer to receive a single copy in the future, may contact Broadridge, Householding Department by mail at 51 Mercedes Way, Edgewood, New York 11717 or by telephone at (866) 540-7095. Be sure to include your name, the name of your brokerage firm and your account number.

Other Matters

Upon receipt of a written request addressed to our Corporate Secretary at Byline Bancorp, Inc., 180 North LaSalle Street, Suite 300, Chicago, Illinois 60601 from any person solicited herein, we will provide, at no cost, a copy of our ~~2020~~2021 Annual Report on Form 10-K as filed with the SEC.

Our Board of Directors does not know of any matter to be brought before the Annual Meeting other than the matters set forth in the Notice of Annual Meeting of Stockholders and matters incident to the conduct of the Annual Meeting. If any other matter should properly come before the Annual Meeting, the persons named in the enclosed proxy card will have discretionary authority to vote all proxies with respect thereto in accordance with their best judgment.


	By Order of the Board of Directors,


		Roberto R. Herencia Executive Chairman of the Board and Chief Executive Officer
April ~~26, 2021~~25, 2022

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Annex A

B~~VOTE~~yline Bancorp, Inc.
Employee Stock Purchase Plan

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Byline Bancorp, Inc.
Employee Stock Purchase Plan

TABLE OF CONTENTS

	Page
Article I – Purpose		A-1
1.01. Purpose		A-1
Article II – Definitions		A-2
2.01. Base Pay		A-2
2.02. Committee		A-2
2.03. Eligible Employee		A-2
2.04. Enrollment Period		A-2
2.05. Offering Commencement Date		A-2
2.06. Offering		A-2
2.07. Offering End Date		A-2
2.08. Participant		A-2
2.09. Plan		A-2
2.10. Purchase Date		A-2
2.11. Subscription		A-2
2.12. Subsidiary		A-3
Article III – Eligibility and Participation		A-4
3.01. Initial Eligibility		A-4
3.02. Leave of Absence		A-4
3.03. Restrictions on Participation		A-4
3.04. Commencement of Participation		A-4
3.05. Participation After Rehire		A-4
3.06. Transfers		A-5
Article IV – Offerings		A-6
4.01. Offerings		A-6

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	Page
4.02. Purchase Price		A-6
Article V – Payroll Deductions/Contributions		A-7
5.01. Amount of Deduction/Contribution		A-7
5.02. Participant’s Account		A-7
5.03. Changes in Payroll Deductions/Contributions		A-7
Article VI – Exercise of Option		A-8
6.01. Automatic Exercise		A-8
6.02. Withdrawal From Offering		A-8
6.03. Delivery of Stock		A-8
6.04. Mandatory Retention or Sale of Stock		A-8
Article VII – Withdrawal		A-9
7.01. Effect on Subsequent Participation		A-9
7.02. Termination of Employment		A-9
Article VIII – Stock		A-10
8.01. Maximum Shares		A-10
8.02. Participant’s Interest in Option Stock		A-10
8.03. Registration of Stock		A-10
8.04. Dividends		A-10
Article IX – Administration		A-10
9.01. Appointment of Committee		A-10
9.02. Authority of Committee		A-10
9.03. Rules Governing the Administration of the Committee		A-10
Article X – Miscellaneous		A-11
10.01. Transferability		A-11
10.02. Use of Funds		A-11
10.03. Adjustment Upon Changes in Capitalization		A-11

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Byline Bancorp, Inc.
Employee Stock Purchase Plan

ARTICLE I – PURPOSE

1.01.

Purpose

The Byline Bancorp, Inc. Employee Stock Purchase Plan is intended to provide a method whereby certain employees of Byline Bancorp, Inc. (the “Company”) and its participating subsidiary corporations will have an opportunity to acquire a proprietary interest in the Company through the purchase of shares of the Common Stock of the Company (“Stock”). It is the intention of the Company to have the Plan qualify as an “employee stock purchase plan” under Section 423 of the Internal Revenue Code of 1986, as amended (the “Code”). The provisions of the Plan shall be construed so as to extend and limit participation in Offerings a manner consistent with the requirements of Code Section 423. Participating Subsidiaries as of the Effective Date are all subsidiaries organized in the United States.

The Plan is being adopted by the Company in anticipation of the initial public offering of the Company’s Common Stock, and is subject to approval of the Company’s shareholders and the successful completion of the initial public offering. In the event that a new corporation is formed to serve as the issuer of Common Stock pursuant to the initial public offering, this Plan may be adopted by such corporation, with the consent of its shareholders, and such corporation shall be considered the Company for all purposes of the Plan.

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ARTICLE II – DEFINITIONS

2.01.

Base Pay

“Base Pay” shall mean regular straight-time earnings and overtime, including vacation pay, paid time off and other payments in lieu of such compensation, except as otherwise determined by the Committee. In the case of an employee who is compensated wholly or partially on the basis of commissions, Base Pay shall also include commission payments.

2.02.

Committee

“Committee” shall mean the individuals appointed by the Company to administer the Plan as described in Article IX.

2.03.

Eligible Employee

“Eligible Employee” means any employee of the Company or a participating Subsidiary whose customary term of employment is for more than 20 hours per week, as determined in accordance with Code Section 423(b)(4)(B).

2.04.

Enrollment Period

“Enrollment Period” shall mean with respect to any Offering, the period designated by the Committee prior to such Offering during which Eligible Employees may authorize payroll deductions through a Subscription.

2.05.

Offering Commencement Date

“Offering Commencement Date” shall mean and, unless determined otherwise by the Committee, January 1 and July 1 of each year commencing with the first such date that occurs after the Effective Date. Each Eligible Employee who is a Participant as of an Offering Commencement Date for an Offering shall be deemed to be granted an option to participate in the Plan for that Offering in accordance with the terms hereof.

2.06.

Offering

“Offering” shall mean the offering of the Company’s Stock. Only Eligible Employees of participating Subsidiaries shall participate in Offerings.

2.07.

Offering End Date

“Offering End Date” shall mean, with respect to each Offering, the last day of the sixth month of such Offering. The Committee may establish a different length for individual offerings, provided that the Offering End Date for any Offering may not be more than five years after the Offering Commencement Date, or twenty-seven months if the purchase price with respect to such Offering is based on the lower of the closing price of the Stock on the Offering Commencement Date or the Purchase Date pursuant to Section 4.02(ii).

2.08.

Participant

“Participant” shall mean an Eligible Employee who has elected to participate in an Offering by entering a Subscription during the Enrollment Period for such Offering.

2.09.

Plan

“Plan” shall mean the Byline Bancorp Inc. Employee Stock Purchase Plan, as amended from time to time.

2.10.

Purchase Date

“Purchase Date” shall mean with respect to any Offering, the Offering End Date; provided, that with respect to any Offering the Committee may provide for more frequent Purchase Dates prior to the Offering End Date, and provided further, that if any such day is not a business day on which trading occurs, the Purchase Date shall be the nearest prior business date on which shares of Stock are traded.

2.11.

Subscription

“Subscription” shall mean an Eligible Employee’s authorization for payroll deductions made in the form and manner specified by the Committee (which may include enrollment by submitting forms, by voice response, internet access or other electronic means). Unless withdrawn earlier in accordance with Section 6.02 or otherwise in accordance with the Plan, each Subscription shall be in effect for the duration of an Offering.

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2.12.

Subsidiary

“Subsidiary” shall mean any present or future corporation that would be a “subsidiary corporation” of the Company as that term is defined in Section 424 of the Code. A participating Subsidiary means any corporation that is a Subsidiary on the Effective Date. The Committee shall have the authority to determine whether corporations that become Subsidiaries after the Effective Date shall participate.

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ARTICLE III – ELIGIBILITY AND PARTICIPATION

3.01.

Initial Eligibility

Any individual who is an Eligible Employee shall be eligible to participate in the Offering if he is employed on the Offering Commencement Date. The Committee may establish rules requiring an Eligible Employee to have completed a minimum period of service (not to exceed two years) to participate in an Offering, or permitting a person who becomes an Eligible Employee (or who completes the applicable period of service) during an Offering to participate in the Offering.

3.02.

Leave of Absence

For purposes of participation in the Plan, and except as otherwise determined by the Committee, a Participant on a leave of absence shall be deemed to be an employee for a period of up to 90 days or, if longer, during the period the Participant’s right to reemployment is guaranteed by statute or contract. If the leave of absence is paid, deductions or contributions authorized under any Subscription in effect at the time the leave began will continue. If the leave of absence is unpaid, no deductions or contributions will be permitted during the leave. If such a Participant returns to active status within 90 days or the guaranteed reemployment period, as applicable, payroll deductions or contributions under the Subscription in effect at the time the leave began will automatically begin again upon the Participant’s return to active status. If the Participant does not return to active status within 90 days or the guaranteed reemployment period, as applicable, the Participant shall be treated as having terminated employment for all purposes of the Plan. If such individual later returns to active employment as an Eligible Employee, such individual will be treated as a new employee and will be eligible to participate in Offerings commencing after his or her reemployment date by filing a Subscription during the applicable Enrollment Period for such Offering.

3.03.

Restrictions on Participation

Notwithstanding any provisions of the Plan to the contrary, no Eligible Employee shall be granted an option to participate in any Offering under the Plan:

(a)

if, immediately after the grant, such Eligible Employee would own stock, and/or hold outstanding options to purchase stock, possessing 5% or more of the total combined voting power or value of all classes of stock of the Company (for purposes of this paragraph, the rules of Section 424(d) of the Code shall apply in determining stock ownership of any Eligible Employee);

(b)

which permits the Eligible Employee’s right to purchase stock under all employee stock purchase plans of the Company to accrue at a rate which exceeds $25,000 in fair market value of the stock (determined at the time such option is granted) for each calendar year in which such option is outstanding; or

(c)

unless the Committee provides that the purchase price with respect to such Offering is based on the lower of the closing price of the Stock on the Offering Commencement Date or the Purchase Date pursuant to Section 4.02(ii), which permits a Participant to purchase more than a number of shares of Stock determined by the Committee at the commencement of the Offering.

3.04.

Commencement of Participation

An Eligible Employee may become a Participant in any Offering by entering a Subscription during the Enrollment Period for such Offering. Payroll deductions for such Offering shall commence on the applicable Offering Commencement Date and shall end on the applicable Offering End Date unless withdrawn by the Participant or sooner terminated in accordance with Article VII. Only one Subscription may be in effect with respect to any Participant at any one time.

3.05.

Participation After Rehire

An Eligible Employee’s Subscription will automatically terminate on his or her termination of employment with the Company and all Subsidiaries. If the Eligible Employee terminates employment with a Subscription in effect with respect to an Offering and is rehired prior to the Offering End Date for that Offering, the Subscription will not be reinstated and the Eligible Employee will not be allowed to again make payroll deductions under such Offering. The Eligible Employee may elect to participate in Offerings commencing after his or her reemployment date by entering a Subscription during the applicable Enrollment Period for such Offering.

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3.06.

Transfers

If an Eligible Employee transfers from a participating to a non-participating Subsidiary, the Eligible Employee’s Subscription to any current Offering shall terminate, and such Eligible. A Participant whose participation in an Offering ends due to this Section 3.06 will be treated as having incurred a Termination of Employment to allow for the application of Section 7.02.

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ARTICLE IV – OFFERINGS

4.01.

Offerings

The Plan will be implemented by Offerings beginning on the first January 1 or July 1 that occurs after the Effective Date and, unless determined otherwise by the Committee, on each January 1 or July 1 that occurs thereafter. Without limiting the generality of the foregoing, the Committee may establish an Offering prior to the first January 1 or July 1 that occurs after the Effective Date, which may have a period of less than six months.

Participants may subscribe to any Offering for which they are eligible by entering a Subscription during the Enrollment Period for such Offering in such manner as the Committee may prescribe (which may include enrollment by submitting forms, by voice response, internet access or other electronic means).

A Subscription that is in effect on an Offering End Date will automatically be deemed to be a Subscription for the Offering that commences immediately following such Offering End Date, provided that the Participant is still an Eligible Employee and has not withdrawn the Subscription, unless otherwise determined by the Committee. If a Participant purchases shares that cause the Participant to reach the limitation set forth in Section 3.03(b) or Section 3.03(c), the Participant’s Subscription will automatically be suspended for the duration of the calendar year and will resume at the beginning of the next calendar year, provided that the Participant is still an Eligible Employee and has not withdrawn the Subscription, unless otherwise determined by the Committee. Under the foregoing automatic enrollment provisions, payroll deductions or contributions will continue at the level in effect immediately prior to the new Offering Commencement Date, unless changed in advance by the Participant in accordance with Section 5.03.

4.02.

Purchase Price

The purchase price per share of Stock under each Offering shall be 85% of the closing price of the Stock on the Purchase Date. Notwithstanding the foregoing, the Committee may determine with respect to any Offering either that (i) the purchase price shall be a different percentage, which shall not be less than 85%, of the closing price of the Stock on the Purchase Date, or (ii) the purchase price shall be a percentage (which shall not be less than 85%) of the lower of the closing price of the Stock on the Offering Commencement Date or the Purchase Date. If the Stock is not traded on the principal securities exchange on which the Stock is admitted to trade on any of the aforesaid dates for which closing prices of the stock are to be determined, then reference shall be made to the next preceding date on which the Stock was so traded. Such determination shall be made and communicated to Eligible Employees during the Enrollment Period for such Offering.

Such purchase price may only be paid with accumulated payroll deductions in accordance with Article V.

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ARTICLE V – PAYROLL DEDUCTIONS/CONTRIBUTIONS

5.01.

Amount of Deduction/Contribution

An Eligible Employee’s Subscription shall authorize payroll deductions at a rate, in whole percentages, of no less than 1% and no more than 15% of Base Pay or such other percentage as the Committee may authorize on each payday that the Subscription is in effect.

5.02.

Participant’s Account

All payroll deductions made with respect to a Participant shall be credited to his or her account under the Plan. A Participant may not make any separate cash payment into such accounts. No interest will accrue or be paid on any amount withheld from a Participant’s pay under the Plan or credited to the Participant’s account. Except as otherwise provided in this Section 5.02, Section 6.01 or Section 8.01, or as provided upon termination of the Plan, all amounts in a Participant’s account will be used to purchase Stock and no cash refunds shall be made from such account. Any amounts remaining in a Participant’s account with respect to an Offering due to the limitations of Section 3.03 shall be returned to the Participant without interest and will not be used to purchase shares with respect to any other Offering under the Plan.

5.03.

Changes in Payroll Deductions/Contributions

During an Offering, a Participant may change his or her level of payroll deduction or contribution with respect to such Offering within the limits described in Section 5.01 in accordance with procedures established by the Committee (including, without limitation, rules relating to the frequency of such changes or prohibiting changes under certain circumstances); provided, however, if the Participant reduces his or her payroll deductions or contributions to zero, it shall be deemed to be a withdrawal of the Subscription and the Participant may not thereafter participate in such Offering but must wait until the next Offering to resubscribe to the Plan. Any increases or decreases in the level of payroll deductions or contributions shall be effective as soon as administratively practicable thereafter.

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ARTICLE VI – EXERCISE OF OPTION

6.01.

Automatic Exercise

A Participant’s option for the purchase of Stock with respect to any Offering will be automatically exercised on each Purchase Date for the Offering. The option will be exercised by using the accumulated payroll deductions or contributions in the Participant’s account as of each such Purchase Date to purchase the number of full and (to the extent permitted by the Committee) partial shares of Stock that may be purchased at the purchase price on such date, determined in accordance with Section 4.02 (but not in excess of the limitation set forth in Sections 3.03(b) or 3.03(c)). Any accumulated payroll deductions or contributions remaining in the Participant’s account following the purchase that could not be used to purchase shares of Stock in accordance with the foregoing provisions shall be refunded to the Participant as soon as practicable, or retained in the Participant’s account and used for the purchase of Stock in the next Offering, as determined by the Committee.

6.02.

Withdrawal From Offering

A Participant may withdraw his or her Subscription at any time (but not retroactively) during an Offering. If the Participant withdraws his or her Subscription with respect to any Offering, the accumulated payroll deductions or contributions in the Participant’s account at the time the Subscription is withdrawn will be used to purchase shares of Stock at the next Purchase Date for the Offering to which the Subscription related, in accordance with Section 6.01, or refunded to the Participant, as determined by the Committee.

6.03.

Delivery of Stock

Stock purchased under the Plan will be held in an account in the Participant’s name in uncertificated form until such shares are transferred to the Participant in accordance with Section 7.02 or other procedures established by the Committee. The Committee may change such accounts and the manner in which such shares are registered and held from time to time, and may establish reasonable fees for the registration and custody of shares and sell shares in a Participant’s account to pay such fees.

6.04.

Mandatory Retention or Sale of Stock

To facilitate compliance with applicable law, the Committee may require Participants to: (a) retain any Stock purchased under the Plan during an Offering with a designated broker or agent for a designated period of time (and may restrict dispositions during that period) and/or may establish other procedures to restrict transfer of such Stock or (b) sell shares of Stock immediately upon purchase or within a specified period following a Participant’s termination of employment.

A-8 Byline Bancorp, Inc. 2022 Proxy Statement

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ARTICLE VII – WITHDRAWAL

7.01.

Effect on Subsequent Participation

A Participant’s election to withdraw from any Offering will not have any effect upon the Participant’s eligibility to participate in any succeeding Offering or in any similar plan which may hereafter be adopted by the Company.

7.02.

Termination of Employment

Upon termination of the Participant’s employment with the Company for any reason, any Subscription then in effect will be deemed to have been withdrawn and any payroll deductions or contributions credited to the Participant’s account will be used to purchase Stock on the next Purchase Date for the Offering with respect to which such deductions relate in accordance with Section 6.01, or refunded to the Participant, as determined by the Committee. After termination of employment, any shares of Stock purchased under the Plan that have not otherwise been certificated, sold or transferred will continue to be held in the Participant’s Plan account. The Company, in its sole discretion, shall determine whether a Participant has terminated employment for purposes of the Plan, and such determinations shall be final and binding on all parties.

Byline Bancorp, Inc. 2022 Proxy Statement A-9

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ARTICLE VIII – STOCK

8.01.

Maximum Shares

The maximum number of shares of Stock which may be issued under the Plan, subject to adjustment upon changes in the Company’s capitalization as provided in Section 10.03, shall be 200,000 shares. If the total number of shares for which options are exercised on any Purchase Date in accordance with Article IV exceeds the maximum number of shares for the applicable Offering, the Committee shall make a pro rata allocation of the shares available for delivery and distribution in as nearly a uniform manner as shall be practicable and as it shall determine to be equitable, and the balance of payroll deductions or contributions credited to the account of each Participant under the Plan shall be returned to him or her as promptly as possible. Shares of Stock to be purchased under the Plan may constitute newly issued shares, treasury shares, or shares purchased by the Company on the open market or from any other source.

8.02.

Participant’s Interest in Option Stock

The Participant will have no interest in Stock covered by an option under the Plan until such option has been exercised.

8.03.

Registration of Stock

Stock to be delivered to a Participant under the Plan will be registered in the name of the Participant or, if the Participant so directs in accordance with procedures established by the Committee, in the names of the Participant and one such other person as may be designated by the Participant, as joint tenants with rights of survivorship, to the extent permitted by applicable law.

8.04.

Dividends

Dividends on Stock purchased under the Plan that is held in a Participant’s account shall be credited to the Participant’s account and reinvested in Stock, except to the extent otherwise provided by the Committee. Unless the Participant has requested otherwise, dividend reinvestment will occur regardless of whether the Participant is currently participating in an Offering. At the Participant’s request, dividends will be paid directly to the Participant in cash.

ARTICLE IX – ADMINISTRATION

9.01.

Appointment of Committee

The Board of Directors of the Company (the “Board”) shall appoint a Committee to administer the Plan. No member of the Committee who is not an Eligible Employee shall be eligible to purchase Stock under the Plan. Unless otherwise determined by the Board, the Company’s Compensation Committee shall serve as the Committee.

9.02.

Authority of Committee

Subject to the express provisions of the Plan, the Committee shall have plenary authority in its discretion to interpret and construe any and all provisions of the Plan, to adopt rules and regulations for administering the Plan, and to make all other determinations deemed necessary or advisable for administering the Plan. Such rules and regulations may alter any provision of the Plan that is ministerial or administrative in nature without a formal amendment. The Committee shall also have the authority to determine whether the employees of Subsidiaries of the Company organized or acquired after the Effective Date shall be eligible for participation in the Plan. To the extent permitted under applicable law, the Committee may delegate its power, authority and responsibilities under the Plan to one or more officers of the Company at any time, in its sole discretion. In this regard and to the extent permitted under applicable law, the Committee hereby delegates its power, authority and responsibilities under the Plan to the Company’s senior officer responsible for human resources. Decisions of the Committee and, where applicable, its delegate, shall be final and binding upon all Participants. Neither the Committee nor any delegate of the Committee shall be liable for any action or determination made in good faith with respect to the Plan or any option granted hereunder.

9.03.

Rules Governing the Administration of the Committee

The Board may from time to time appoint members of the Committee in substitution for or in addition to members previously appointed and may fill vacancies, however caused, in the Committee. The Committee may select one of its members as its Chairman and shall hold its meetings at such times and places as it shall deem advisable and may hold telephonic meetings. A majority of its members shall constitute a quorum. All determinations of the Committee shall be made by a majority of its members. The Committee may correct any defect or omission or reconcile any inconsistency in the Plan, in the manner and to the extent it shall deem desirable. Any decision or determination reduced to writing and signed by a majority of the members of the Committee shall be as fully effective as if it had been made by a majority vote at a meeting duly called and held. The Committee may appoint a secretary and shall make such rules and regulations for the conduct of its business as it shall deem advisable.

A-10 Byline Bancorp, Inc. 2022 Proxy Statement

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ARTICLE X – MISCELLANEOUS

10.01.

Transferability

Neither payroll deductions credited to a Participant’s account nor any rights with regard to the exercise of an option or to receive Stock under the Plan may be assigned, transferred, pledged, or otherwise disposed of in any way by the Participant other than by will or the laws of descent and distribution. Any such attempted assignment, transfer, pledge or other disposition shall be without effect. During a Participant’s lifetime, options held by such Participant shall be exercisable only by that Participant.

10.02.

Use of Funds

All payroll deductions received or held by the Company under this Plan may be used by the Company for any corporate purpose and the Company shall not be obligated to segregate such payroll deductions.

10.03.

Adjustment Upon Changes in Capitalization

In the event of a stock split, stock dividend, reverse stock split, extraordinary cash dividend, recapitalization, reorganization, reclassification or combination of shares, merger, consolidation, distribution, split-up, spin-off, exchange of shares, sale of assets or similar corporate transaction or event, the Committee, in the manner it deems equitable, shall adjust (a) the number and class of shares or other securities that are reserved for issuance under the Plan, (b) the number and class of shares or other securities that are subject to outstanding options, and (c) the appropriate market value and other price determinations applicable to options (including the purchase price). The Committee shall make all determinations under this Section 10.03, and all such determinations shall be conclusive and binding.

10.04.

Mergers, Liquidations, and Other Company Transactions

(a)

Liquidation or Dissolution. In the event of the proposed liquidation or dissolution of the Company, the Offering then in progress shall terminate immediately prior to the consummation of such proposed liquidation or dissolution, unless otherwise provided by the Committee in its sole discretion, and all outstanding options to purchase Stock shall automatically terminate and the amounts of all payroll deductions and contributions will be refunded without interest to the Participants as soon as reasonably practicable.

(b)

Sale or Merger. In the event of a proposed sale of all or substantially all of the assets of the Company, or the merger or consolidation of the Company with or into another entity, then in the sole discretion of the Committee: (a) each option shall be assumed, or an equivalent option shall be substituted, by the successor corporation or parent or subsidiary of such successor corporation; or (b) a new Purchase Date shall be established by the Committee on or before the date of consummation of such merger, consolidation or sale, and all outstanding options to purchase Stock shall be automatically exercised on such new date.

10.05.

Amendment and Termination

The Committee shall have complete power and authority to terminate or amend the Plan; provided, however, that any amendment that would (i) increase the maximum number of shares which may be issued under any Offering (except pursuant to Section 10.03); or (ii) amend the requirements as to the class of employees eligible to participate in the Plan shall require action by the Board and approval of the shareholders.

Unless otherwise determined by the Committee, the termination date of the Plan shall be deemed to be a Purchase Date, and all options then outstanding under the Plan shall be exercised.

10.06.

Compliance with Legal and Exchange Requirements

The Company shall not be under any obligation to issue Stock upon the exercise of any option unless and until the Company has determined that: (a) it has taken all actions required to register the shares of Stock under the U.S. Securities Act of 1933, or to perfect an exemption from the registration requirements thereof; (b) any applicable listing requirement of any stock exchange on which the Stock is listed has been satisfied; and (c) all other applicable provisions of U.S. federal, state and local laws have been satisfied.

10.07.

Withholding of Taxes

In the event that the Company is required to withhold any applicable taxes in respect of any compensation or other income realized by a Participant under the Plan, the Company may deduct from any benefits of any kind otherwise due to such Participant, including without limitation the proceeds of any sale of shares of Stock for the account of the Participant, the aggregate amount of such applicable taxes required to be withheld or, if such payments are insufficient

Byline Bancorp, Inc. 2022 Proxy Statement A-11

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to satisfy such applicable taxes, the Participant will be required to pay to the Company, or make other arrangement satisfactory to the Company regarding payment to the Company of, the aggregate amount of any such taxes.

10.08.

Effective Date

This Plan shall be effective as of the later if the date on which the Company’s initial public offering becomes effective, or the date on which it is approved by the shareholders of the Company. If the Effective Date does not occur within twelve months after the date on which the Plan is adopted, the Plan shall be null and void.

10.09.

No Employment Rights

The Plan does not, directly or indirectly, create any right for the benefit of any employee or class of employees to purchase any shares under the Plan, or create in any employee or class of employees any right with respect to continuation of employment by the Company, and it shall not be deemed to interfere in any way with the Company’s right to terminate, or otherwise modify, an employee’s employment at any time. Any rights or benefits provided under this Plan shall not be considered part of normal or expected compensation for purposes of calculating any severance, resignation, redundancy, end of service payments, bonuses, long service awards, pension, retirement or similar payments, except to the extent explicitly provided in the plan or policy document governing such benefits.

10.10.

Effect of Plan

The provisions of the Plan shall, in accordance with its terms, be binding upon, and inure to the benefit of, all successors of each employee participating in the Plan, including, without limitation, such employee’s estate and the executors, administrators or trustees thereof, heirs and legatees, and any receiver, trustee in bankruptcy or representative of creditors of such employee.

10.11.

Governing Law

The law of the State of Illinois will govern all matters relating to this Plan except to the extent it is superseded by the laws of the United States.

A-12 Byline Bancorp, Inc. 2022 Proxy Statement

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FIRST AMENDMENT
to the
BYLINE BANCORP, INC. EMPLOYEE STOCK PURCHASE PLAN

Section 10.05 of the Byline Bancorp, Inc. Employee Stock Purchase Plan (the “Plan”) provides that the Plan may be amended to increase the maximum number of shares which may be issued under any Offering (as defined in the Plan) by action of the Board of Directors of Byline Bancorp, Inc. (the “Company”), subject to the approval of the Company’s shareholders. In accordance with the authority granted by Section 10.05 of the Plan, and subject to the approval of the Company’s shareholders, the Company’s Board of Directors hereby amends the Plan as follows:

Effective as of the date that the approval of the Company’s shareholders is obtained, Section 8.01 of the Plan is amended by replacing the reference to “200,000” therein with a reference to “400,000” (thereby increasing the maximum number of shares available under the Plan by 200,000 shares):

In all other respects, the Plan remains in full force and effect.

[Signature Page Follows]

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IN WITNESS WHEREOF, the changes made by this First Amendment shall be effective as of the applicable date set forth above.

				BYLINE BANCORP, INC.
				By: Roberto R. Herencia
				Title: Executive Chairman of the Board and Chief Executive Officer
				Date: April 18, 2022

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BYLINE BANCORP, INC.180 NORTH LASALLE STREET, SUITE 300CHICAGO, IL 60601! ! !VOTE BY ~~INTERNET Before~~INTERNETBefore The Meeting - Go to www.proxyvote.com ~~Use~~or scan the QR Barcode aboveUse the Internet to transmit your voting instructions and for electronic delivery ~~of information.~~ofinformation. Vote by 11:59 p.m. Eastern Time on June ~~7, 2021~~6, 2022 for shares held directly and ~~by 11:~~by11:59 p.m. Eastern Time on June ~~3, 2021~~2, 2022 for shares held in a Plan. Have your proxy card ~~in hand~~inhand when you access the web site and follow the instructions to obtain your records and ~~to create~~tocreate an electronic voting instruction ~~form. During~~form.During The Meeting - Go to www.virtualshareholdermeeting.com/~~BY2021 You~~BY2022You may attend the meeting via the Internet and vote during the meeting. Have the ~~information that~~informationthat is printed in the box marked by the arrow available and follow the ~~instructions. VOTE~~instructions.VOTE BY PHONE - ~~1-800-690-6903 Use~~1-800-690-6903Use any touch-tone telephone to transmit your voting instructions. Vote by 11:59 ~~p.m. Eastern~~p.m.Eastern Time on June ~~7, 2021~~6, 2022 for shares held directly and by 11:59 p.m. Eastern Time ~~on June 3, 2021~~onJune 2, 2022 for shares held in a Plan. Have your proxy card in hand when you call ~~and then~~andthen follow the ~~instructions. VOTE~~instructions.VOTE BY ~~MAIL Mark,~~MAILMark, sign and date your proxy card and return it in the postage-paid envelope ~~we have~~wehave provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way,Edgewood, NY 11717. ~~BYLINE BANCORP, INC. 180 NORTH LASALLE STREET, SUITE 300 CHICAGO, IL 60601~~ TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: ~~D52276-P55148~~ KEEP THIS PORTION FOR YOUR ~~RECORDS DETACH AND RETURN THIS PORTION ONLY THIS~~RECORDSTHIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. DETACH AND RETURN THIS PORTION ONLYD78176-P71320 BYLINE BANCORP, INC. ~~THE~~To withhold authority to vote for any individualnominee(s), mark "For All Except" and write theTHE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE ELECTION OF ALL OF THE DIRECTOR NOMINEES LISTED IN PROPOSAL 1 AND "FOR" PROPOSAL 2. For Withhold For All AllAllExcept To withhold authority to vote for any individual nominee(s), mark "For All Except" and write the number(s) of the nominee(s) on the line ~~below. ! ! ! 1.~~below.THE ELECTION OF ~~EIGHT DIRECTORS~~ALL OF THE COMPANY: NOMINEES: 01) ROBERTO R. HERENCIA 02) PHILLIP R. CABRERA 03) ANTONIO DEL VALLE PEROCHENA 04) MARY JO HERSETH 05) STEVEN P. KENT 06) 07) 08) WILLIAM G. KISTNER ALBERTO J. PARACCHINI STEVEN M. RULL For Against Abstain ! ! !DIRECTOR NOMINEESLISTED IN PROPOSAL 1 AND "FOR" PROPOSALS 2 AND 3. ForAllWithholdAllFor AllExcept 2. TO APPROVE AN AMENDMENT TO THE COMPANY’S EMPLOYEE STOCK PURCHASE PLAN TO INCREASE THE NUMBER OF SHARES OF COMMON STOCKTHAT MAY BE OFFERED UNDER THE PLAN.3. RATIFICATION OF THE APPOINTMENT OF MOSS ADAMS LLP AS THE COMPANY’S INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR ~~THE FISCAL~~THEFISCAL YEAR ENDING DECEMBER 31, ~~2021. In~~2022. For Against AbstainIn their discretion, the proxies are authorized to vote upon such other business as may properly come before the Annual Meeting. This proxy when ~~properly executed~~properlyexecuted will be voted as directed herein by the undersigned stockholder. If no direction is made, this proxy will be voted FOR THE NOMINEES ~~in Proposal~~inProposal 1 and FOR ~~Proposal 2. Note:~~Proposals 2 and 3.Note: Please sign exactly as your name or names appear on this Proxy. When shares are ~~held jointly,~~heldjointly, each holder should sign. When signing as executor, administrator, attorney, trustee ~~or guardian,~~orguardian, please give full title as such. If the signer is a corporation, please sign full ~~corporate name~~corporatename by duly authorized officer, giving full title as such. If signer is a partnership, please ~~sign in~~signin partnership name by authorized person. Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date

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Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting:The Notice and Proxy Statement and Annual Report/Form 10-K are available at www.proxyvote.com. ~~D52277-P55148~~D78177-P71320 BYLINE BANCORP, ~~INC. Proxy~~INC.Proxy for Annual Meeting of Stockholders on June ~~8, 2021 Solicited~~7, 2022Solicited on Behalf of the Board of ~~Directors The~~DirectorsThe undersigned hereby appoints Alberto J. Paracchini and Lindsay Corby, with full power of substitution and power to act alone, as proxies to vote all the shares of Common Stock which the undersigned would be entitled to vote if personally present and acting at the Annual Meeting of Stockholders of Byline Bancorp, Inc., to be held on June ~~8, 2021~~7, 2022 at 8:30 a.m., Central Daylight ~~Time virtually~~Timevirtually at www.virtualshareholdermeeting.com/~~BY2021,~~BY2022, and at any adjournments or postponements thereof, as follows:YOU ARE ENCOURAGED TO SPECIFY YOUR CHOICES BY MARKING THE APPROPRIATE BOXES. WHERE A CHOICE IS NOT SPECIFIED, THE PROXIES WILL VOTE THE SHARES IN ACCORDANCE WITH THE BOARD OF DIRECTORS' RECOMMENDATIONS. ~~(Continued~~(Continued and to be signed on the reverse side.)

22-3537-


~~Filed by the Registrant~~ ý
~~Filed by a Party other than the Registrant~~ o
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ý		~~Definitive Proxy Statement~~
o		~~Definitive Additional Materials~~
o		~~Soliciting Material under §240.14a-12~~


~~Byline Bancorp, Inc.~~
~~(Name of Registrant as Specified In Its Charter)~~

~~(Name of Person(s) Filing Proxy Statement, if other than the Registrant)~~
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	~~(4)~~	~~Date Filed:~~


Roberto R. Herencia Executive Chairman of the Board and Chief Executive Officer ~~Alberto J. Paracchini~~ ~~President~~		~~April 26, 2021~~ ~~Dear Stockholder:~~ You are cordially invited to attend the 2021 Annual Meeting of Stockholders of Byline Bancorp, Inc. The Annual Meeting will be held virtually through a live webcast on June 8, 2021 at 8:30 a.m. Central Daylight Time. The attached Notice of Meeting and Proxy Statement describe the formal business to be conducted at the Annual Meeting. Members of our Board of Directors and executive officers will be present virtually at the Annual Meeting to respond to any questions that our stockholders may have. ~~Your vote is important. Whether or not you plan to attend the Annual Meeting virtually, please vote as soon as possible to ensure that your shares are represented and voted at the meeting.~~ Our Board of Directors has determined that the proposals to be considered at the Annual Meeting as described in the attached Notice of Meeting and Proxy Statement are in the best interests of Byline Bancorp and its stockholders. ~~For the reasons set forth in the Proxy Statement, the Board of Directors unanimously recommends a vote "FOR" each proposal to be considered.~~ ~~On behalf of the Board of Directors and the officers and employees of Byline Bancorp, we would like to take this opportunity to thank our stockholders for their continued support.~~ ~~Sincerely,~~

	~~Roberto R. Herencia~~ ~~Executive Chairman of the Board and Chief Executive Officer~~		Alberto J. Paracchini President~~President~~


	Roberto R. Herencia
	Executive Chairman of the Board and Chief Executive Officer

Name	Fees Earned or Paid in Cash(1)		All Other Compensation(2)		Total


Roberto R. Herencia	$	800,000	$	15,571	$	815,571
Phillip R. Cabrera		120,000		—		120,000
Antonio del Valle Perochena		108,750		—		108,750
Mary Jo S. Herseth		80,000		—		80,000
Steven P. Kent		76,250		—		76,250
William G. Kistner		85,000		—		85,000
Jaime Ruiz Sacristán⁽³⁾		36,667		—		36,667
Steven M. Rull		80,000		—		80,000
Robert R. Yohanan⁽⁴⁾		900,000		—		900,000

	2020		2019


Audit Fees	$	835,000	$	701,000
Audit-Related Fees		18,500		18,500
Total	$	853,500	$	719,500

Name	Perquisites and Other Benefits^(a)		Contributions to Defined Contribution Plans^(b)		Insurance Premiums^(c)		Total


Alberto J. Paracchini	$	—	$	11,400	$	1,209	$	12,609
Lindsay Corby		—		11,400		743		12,143
Thomas Abraham		7,500		11,400		192		19,092
Brogan Ptacin		21,758		11,400		157		33,315

Named Executive Officer		Target Bonus Amount		Payout for Corporate Achievement		Payout for Individual Performance		Total Incentive Payout


Alberto J. Paracchini	55%	$	338,250	$	177,582	$	76,106	$	253,688	75%
Lindsay Corby	40%	$	144,000	$	75,600	$	32,400	$	108,000	75%
Brogan Ptacin	40%	$	131,200	$	68,880	$	26,568	$	95,448	73%
Thomas Abraham	30%	$	120,000	$	84,000		N/A	$	84,000	70%

Named Executive Officer			Target $ Performance-Vesting Restricted Shares⁽¹⁾		Target $ Time-Vesting Restricted Shares⁽¹⁾


Alberto J. Paracchini	60	%	$	141,260	$	141,260
Lindsay Corby	50	%	$	90,000	$	90,000
Brogan Ptacin	40	%	$	65,600	$	65,600
Thomas Abraham⁽²⁾	30	%	$	0	$	120,000

	Page
10.04. Mergers, Liquidations, and Other Company Transactions		A-11
10.05. Amendment and Termination		A-11
10.06. Compliance with Legal and Exchange Requirements		A-11
10.07. Withholding of Taxes		A-11
10.08. Effective Date		A-12
10.09. No Employment Rights		A-12
10.10. Effect of Plan		A-12
10.11. Governing Law		A-12

Antonio del Valle Perochena

Age:~~Antonio del Valle Perochena~~ 53

~~Age:~~52
Director Since: 2013
Lead Director since February 2021
Board Committees:
Compensation (Chair), Governance and Nominating (Chair)

Background
Antonio del Valle Perochena has served on our Board of Directors since June 2013 and was appointed Lead Director in February 2021. He serves as the chair of the ~~compensation committee,~~Compensation Committee, and as the chair of the governance and nominating committee. Mr. del Valle Perochena also serves on the board of directors of Byline Bank, and serves as the chair of the ~~compensation committee,~~Compensation Committee, and as the chair of the governance and nominating committee of Byline Bank. Mr. del Valle Perochena has been the Chairman of the board of directors of Kaluz, S.A., which is the holding company for Mexichem, S.A.B. and Elementia, S.A., since September 2013 and has been the Chairman of the board of directors of Grupo Financiero Ve por Más, S.A. (BX+) since 2006. Prior to incorporating Kaluz and BX+, which are financial, industrial and construction enterprises, in 2003, Mr. del Valle Perochena worked at ING Group as Executive Vice President of Insurance and Pensions in Mexico from 1996 to 1999, and later as Director of New Projects of the direct banking business of the group, ING Direct, in Madrid, Spain from 1999 to 2001. Mr. del Valle Perochena has served as a director of Pochteca Group and Grupo Empresarial Kaluz since 2003 and as a director of Afianzadora Sofimex since 2004. Mr. del Valle Perochena holds a business administration degree and Masters in Management from Universidad Anáhuac. He also holds a Senior Management graduate degree at IPADE and a specialization in literature at the Iberoamericana University. Mr. del Valle ~~Perochena's~~Perochena’s qualifications include over 20 years of experience in the financial and business sectors.