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  4. [Form 4] BYLINE BANCORP, INC. Insider Trading Activity

Byline Bancorp president granted stock, shares withheld

Byline Bancorp, Inc. president Alberto J. Paracchini reported stock-based compensation transactions in company common stock.

Filing Impact
(High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Byline Bancorp, Inc. president Alberto J. Paracchini reported stock-based compensation transactions in company common stock. He acquired 11,303 shares from a performance-vesting award and 8,029 restricted shares that will vest over three years, subject to continued employment.

To cover taxes on these awards, 3,415 shares and 2,743 shares were disposed of at $33.13 per share through share withholding rather than open-market sales. After these transactions, he directly held 194,276 common shares.

Positive

  • None.

Negative

  • None.
Insider Paracchini Alberto J
Role PRESIDENT
Type Security Shares Price Value
Grant/Award Common stock 11,303 $0.00 $0.00
Exercise Price or Tax Liability Common stock 3,415 $33.13 $113K
Grant/Award Common stock 8,029 $0.00 $0.00
Exercise Price or Tax Liability Common stock 2,743 $33.13 $91K
Holdings After Transaction: Common stock — 194,276 shares (Direct)
Footnotes (2)
  1. F1. Represents shares of Common Stock earned upon performance-vesting of a previously awarded performance share grant.
  2. F2. Represents restricted shares of Common Stock that will time vest over three years subject to continued employment with the issuer.

FAQ

What insider transactions did BY president Alberto Paracchini report on this Form 4?
Alberto Paracchini reported receiving 11,303 performance-vested shares and 8,029 restricted shares of Byline Bancorp common stock. He also had 3,415 shares and 2,743 shares withheld at $33.13 per share to satisfy tax obligations tied to these awards.

Were the BY shares disposed of by Alberto Paracchini open-market sales?
No, the reported share disposals were tax-withholding transactions, not open-market sales. A total of 3,415 and 2,743 shares of Byline Bancorp common stock were delivered at $33.13 per share to pay tax liabilities associated with the stock awards.

What types of stock awards did BY’s president receive in this filing?
Alberto Paracchini received common stock from two award types: 11,303 shares earned upon performance-vesting of a prior performance share grant, and 8,029 restricted shares that will time-vest over three years, contingent on his continued employment with Byline Bancorp.

How many BY shares does Alberto Paracchini hold after these Form 4 transactions?
Following the reported awards and tax-withholding disposals, Alberto Paracchini directly owns 194,276 shares of Byline Bancorp common stock. This figure reflects his updated direct holdings after both the performance-vested and restricted stock awards and the related tax share withholdings.

What is the vesting schedule for the restricted BY shares reported?
The filing states that 8,029 restricted shares of Byline Bancorp common stock will time vest over three years. Vesting is conditioned on Alberto Paracchini’s continued employment with the issuer during that period, aligning the award with ongoing service.

At what price were BY shares used for tax withholding in this Form 4?
The tax-withholding dispositions used Byline Bancorp common stock valued at $33.13 per share. In total, 3,415 shares and 2,743 shares were delivered at that price to satisfy tax obligations stemming from the reported equity awards.

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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
Estimated average burden
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*
Paracchini Alberto J
(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)
X Director 10% Owner
X Officer (give title below) Other (specify below)
PRESIDENT
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 11,303(1) A $0 192,405 D
Common stock 02/22/2026 F 3,415 D $33.13 188,990 D
Common stock 02/22/2026 A 8,029(2) A $0 197,019 D
Common stock 02/22/2026 F 2,743 D $33.13 194,276 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.

Source: View Original Filing on SEC EDGAR