Brogan Ptacin - 22 Feb 2026 Form 4 Insider Report for BYLINE BANCORP, INC. (BY)

Role
HEAD OF COMMERCIAL BANKING
Signature
/s/ Thomas J. Bell III, Attorney-in-Fact
Issuer symbol
BY
Transactions as of
22 Feb 2026
Net transactions value
-$72,753
Form type
4
Filing time
24 Feb 2026, 19:11:15 UTC
Previous filing
29 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ptacin Brogan HEAD OF COMMERCIAL BANKING 180 N. LASALLE ST., SUITE 300, CHICAGO /s/ Thomas J. Bell III, Attorney-in-Fact 24 Feb 2026 0001368185

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BY Common stock Award $0 +3,866 +18% $0.000000 25,640 22 Feb 2026 Direct F1
transaction BY Common stock Tax liability $44,328 -1,338 -5.2% $33.13 24,302 22 Feb 2026 Direct
transaction BY Common stock Award $0 +2,415 +9.9% $0.000000 26,717 22 Feb 2026 Direct F2
transaction BY Common stock Tax liability $28,426 -858 -3.2% $33.13 25,859 22 Feb 2026 Direct
holding BY Common stock 27,200 22 Feb 2026 By Brogan M. Ptacin Rev Trust Dtd 3/24/2004 Brogan M. Ptacin TTEE

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding BY Stock Option 9,450 22 Feb 2026 Common stock 9,450 $12.70 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares of Common Stock earned upon performance-vesting of a previously awarded performance share grant.
F2 Represents restricted shares of Common Stock that will time vest over three years subject to continued employment with the issuer.