STOCK TITAN

Byline Bancorp (NYSE: BY) exec exercises 9,450 options, disposes stock

(Moderate)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Byline Bancorp, Inc. executive Brogan Ptacin, Head of Commercial Banking, reported an option exercise and share movements in common stock. On 2026-08-03, she exercised derivative securities for 9450.0000 shares at $12.7000 per share, received 9450.0000 common shares, and disposed of 9450.0000 shares to the issuer at $39.6107 per share. She also reports indirect ownership of 27200.0000 common shares held through the Brogan M. Ptacin Revocable Trust.

Positive

  • None.

Negative

  • None.
Insider Ptacin Brogan
Role HEAD OF COMMERCIAL BANKING
Type Security Shares Price Value
Exercise Common Stock 9,450 $0.00 $0.00
Grant/Award Common stock 9,450 $12.70 $120K
Disposition Common stock 9,450 $39.6107 $374K
holding Common stock -- -- --
Holdings After Transaction: Common stock — 25,859 shares (Direct); Common stock — 27,200 shares (Indirect, By Brogan M. Ptacin Rev Trust Dtd 3/24/2004 Brogan M. Ptacin TTEE)
Options exercised 9450.0000 shares Derivative security exercise on 2026-08-03
Exercise price $12.7000 per share Conversion or exercise price of derivative security
Shares disposed to issuer 9450.0000 shares Common stock disposition to issuer on 2026-08-03
Disposition price $39.6107 per share Price for common stock disposition to issuer
Indirect holdings after transactions 27200.0000 shares Common stock held via Brogan M. Ptacin Rev Trust
Option expiration date 2026-12-20 Expiration of derivative security exercised
Exercise or conversion of derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
Disposition to issuer financial
"transaction_code_description: Disposition to issuer"
indirect financial
"ownership_type: indirect, nature_of_ownership: By Brogan M. Ptacin Rev Trust"
Rev Trust financial
"By Brogan M. Ptacin Rev Trust Dtd 3/24/2004 Brogan M. Ptacin TTEE"

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FAQ

What insider transactions did Byline Bancorp (BY) report for executive Brogan Ptacin?

Byline Bancorp reported that Brogan Ptacin exercised options for 9450.0000 shares at $12.7000, received the same number of common shares, then disposed of 9450.0000 shares to the issuer at $39.6107 per share on 2026-08-03.

Did Brogan Ptacin’s Form 4 show any remaining holdings in Byline Bancorp (BY)?

Yes. After the reported transactions, Brogan Ptacin reports 27200.0000 common shares held indirectly through the Brogan M. Ptacin Rev Trust Dated 3/24/2004, with Brogan M. Ptacin as trustee, reflecting continuing exposure via this trust position.

At what prices were Brogan Ptacin’s Byline Bancorp (BY) transactions executed?

The option exercise converted derivative securities at an exercise price of $12.7000 per share. The subsequent disposition of common stock back to the issuer was reported at $39.6107 per share, indicating two distinct price points for the 2026-08-03 transactions.

What type of derivative security did Brogan Ptacin exercise in Byline Bancorp (BY)?

Brogan Ptacin exercised a derivative security covering 9450.0000 underlying common shares, with an exercise price of $12.7000, originally exercisable from 2018-05-31 and expiring on 2026-12-20, resulting in acquisition of common stock before the reported disposition.

Were Brogan Ptacin’s Byline Bancorp (BY) transactions reported as direct or indirect ownership?

The option exercise, related share acquisition, and disposition of 9450.0000 shares were all reported as direct ownership. Separately, a holding entry shows 27200.0000 shares held indirectly through the Brogan M. Ptacin Revocable Trust, indicating two ownership forms.
SEC Form 4
FORM 4UNITED 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*
Ptacin Brogan

(Last)(First)(Middle)
180 N. LASALLE ST.
SUITE 300

(Street)
CHICAGO ILLINOIS 60601

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
BYLINE BANCORP, INC. [ BY ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
HEAD OF COMMERCIAL BANKING
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/03/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common stock08/03/2026A9,450A$12.735,309D
Common stock08/03/2026D9,450D$39.610725,859D
Common stock27,200IBy Brogan M. Ptacin Rev Trust Dtd 3/24/2004 Brogan M. Ptacin TTEE
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Common Stock$12.708/03/2026M9,45005/31/201812/20/2026Common Stock9,450$00D
Explanation of Responses:
/s/ Thomas J. Bell III, Attorney-in-Fact08/04/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)