Byline Bancorp (NYSE: BY) EVP receives stock awards and withholds shares for taxes

Rhea-AI Filing Summary

BYLINE BANCORP, INC. executive Megan Biggam, EVP Head of Community Banking, reported a mix of stock awards and related tax share withholdings in common stock. She acquired 2,231 shares and 1,916 shares through grants with no cash paid per share.

The filing also shows disposals of 772 shares and 678 shares at $33.13 per share to satisfy tax obligations by delivering shares, rather than an open-market sale. Footnotes explain that one grant reflects performance-vested shares and another consists of restricted shares that time-vest over three years subject to continued employment.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider BIGGAM MEGAN

Role EVP HEAD OF COMMUNITY BANKING

Type	Security	Shares	Price	Value
Grant/Award	Common stock	2,231	$0.00	--
Tax Withholding	Common stock	772	$33.13	$26K
Grant/Award	Common stock	1,916	$0.00	--
Tax Withholding	Common stock	678	$33.13	$22K

Holdings After Transaction: Common stock — 34,172 shares (Direct)

Footnotes (1)

1. Represents shares of Common Stock earned upon performance-vesting of a previously awarded performance share grant. Represents restricted shares of Common Stock that will time vest over three years subject to continued employment with the issuer.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BIGGAM MEGAN

(Last) (First) (Middle)

180 NORTH LASALLE STREET

SUITE 300

(Street)

CHICAGO IL 60601

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BYLINE BANCORP, INC. [ BY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP HEAD OF COMMUNITY BANKING

3. Date of Earliest Transaction (Month/Day/Year)
02/22/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common stock	02/22/2026		A		2,231(1)	A	$0	34,172	D
Common stock	02/22/2026		F		772	D	$33.13	33,400	D
Common stock	02/22/2026		A		1,916(2)	A	$0	35,316	D
Common stock	02/22/2026		F		678	D	$33.13	34,638	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares of Common Stock earned upon performance-vesting of a previously awarded performance share grant.

2. Represents restricted shares of Common Stock that will time vest over three years subject to continued employment with the issuer.

	/s/ Thomas J. Bell III, Attorney-in-Fact	02/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did BY (Byline Bancorp) executive Megan Biggam report on this Form 4?

Megan Biggam reported stock awards and related tax withholdings in BY common stock. She received two share grants at no cost per share and had shares withheld at $33.13 per share to cover tax liabilities through share delivery instead of cash payments.

How many Byline Bancorp (BY) shares were granted to Megan Biggam?

The Form 4 shows grants of 2,231 shares and 1,916 shares of BY common stock. These awards were acquired at a per-share price of $0.00, reflecting equity compensation rather than open-market purchases, according to the transaction codes and descriptions in the filing.

Why were some BY shares disposed of in Megan Biggam’s Form 4 filing?

The reported share disposals relate to tax withholding, not open-market selling. Transactions coded “F” describe payment of exercise price or tax liability by delivering securities, so 772 and 678 BY shares were withheld at $33.13 per share to satisfy associated tax obligations.

What do the Form 4 footnotes say about Megan Biggam’s BY stock awards?

One footnote explains that part of the award represents shares earned upon performance-vesting of a prior performance share grant. Another states that restricted BY common shares will time vest over three years, conditioned on Megan Biggam’s continued employment with the issuer.

Is Megan Biggam’s BY stock ownership direct or indirect in this Form 4?

The transactions are reported as direct ownership of BY common stock. The filing marks the ownership type and code as direct, and the nature-of-ownership field contains no indication that the shares are held through a separate trust, partnership, or similar indirect entity.