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United States

Byline Bancorp Inc (BY)

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In the last 90 days, Byline Bancorp Inc. saw two insider buy transactions totaling $12,445.91. Notably, William G. Kistner and Mary Jo S. Herseth made purchases. This activity occurred after the company's last earnings report, which exceeded expectations by 10.67%. The stock has performed well, nearing its 52-week high.
Stock chart
Ticker: BY Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
KISTNER WILLIAM G
1 purchase — total 3,197 USD
Buy 4 May 2026
Value US$187,604.42 | Price 34.48 | Shares 12,369
Buy 16 Mar 2026
Value US$3,759,004.41 | Price 158.40 | Shares 55,078
Sale 26 Feb 2026
Value US$145,775.97 | Price 32.33 | Shares 4,509
Proposed sale 26 Feb 2026
Value US$160,000.00 | Price 32.62 | Shares 4,905
Buy 17 Feb 2026
Value US$24,847.42 | Price 33.13 | Shares 750
Buy 28 Jan 2026
Value US$5,244.07 | Price 31.03 | Shares 169
Sale 28 Oct 2025
Value US$537,430.00 | Price 26.87 | Shares 20,000
Sale 28 Oct 2025
Value US$91,716.70 | Price 26.98 | Shares 3,400
Buy 28 Oct 2025
Value US$1,791.24 | Price 27.56 | Shares 65
Sale 12 Sep 2025
Value US$57,491.44 | Price 28.76 | Shares 1,999
Proposed sale 12 Sep 2025
Value US$57,400.00 | Price 28.71 | Shares 1,999
Sale 28 Aug 2025
Value US$343,729.20 | Price 29.10 | Shares 11,812
Proposed sale 28 Aug 2025
Value US$351,500.00 | Price 29.76 | Shares 11,812
Buy 8 Aug 2025
Value US$1,542.30 | Price 25.71 | Shares 60
Buy 13 Jun 2025
Value US$50,653.80 | Price 25.33 | Shares 2,000
Buy 13 Jun 2025
Value US$4,146.74 | Price 25.29 | Shares 164
Buy 11 Jun 2025
Value US$1,009,998.00 | Price 24.75 | Shares 40,808
Buy 11 Jun 2025
Value US$99,990.00 | Price 24.75 | Shares 4,040
Buy 11 Jun 2025
Value US$102,093.75 | Price 24.75 | Shares 4,125
Buy 11 Jun 2025
Value US$58,410.00 | Price 24.75 | Shares 2,360
Sale 10 Jun 2025
Value US$96,594.25 | Price 26.75 | Shares 3,611
Sale 9 Jun 2025
Value US$229,449.16 | Price 26.75 | Shares 8,576
Proposed sale 9 Jun 2025
Value US$670,000.00 | Price 27.49 | Shares 24,374
Proposed sale 9 Jun 2025
Value US$335,000.00 | Price 27.49 | Shares 12,187
Proposed sale 9 Jun 2025
Value US$335,000.00 | Price 27.49 | Shares 12,187
Proposed sale 9 Jun 2025
Value US$670,000.00 | Price 27.49 | Shares 24,374
Proposed sale 9 Jun 2025
Value US$335,000.00 | Price 27.49 | Shares 12,187
Proposed sale 9 Jun 2025
Value US$335,000.00 | Price 27.49 | Shares 12,187
Buy 6 Mar 2025
Value US$7,277.54 | Price 27.16 | Shares 268
Buy 4 Mar 2025
Value US$1,804.72 | Price 27.77 | Shares 65
Sale 27 Feb 2025
Value US$125,911.81 | Price 28.18 | Shares 4,468
Proposed sale 27 Feb 2025
Value US$128,500.00 | Price 28.76 | Shares 4,468
Sale 25 Feb 2025
Value US$192,137.23 | Price 28.86 | Shares 6,658
Proposed sale 25 Feb 2025
Value US$198,941.00 | Price 29.88 | Shares 6,658
Buy 20 Nov 2024
Value US$1,527.94 | Price 30.56 | Shares 50
Sale 7 Nov 2024
Value US$76,134.00 | Price 30.45 | Shares 2,500
Proposed sale 7 Nov 2024
Value US$76,002.00 | Price 30.40 | Shares 2,500
Sale 7 Nov 2024
Value US$305,057.00 | Price 30.51 | Shares 10,000
Proposed sale 7 Nov 2024
Value US$307,000.00 | Price 30.70 | Shares 10,000
Sale 7 Nov 2024
Value US$248,514.48 | Price 30.68 | Shares 8,100
Proposed sale 7 Nov 2024
Value US$244,000.00 | Price 30.12 | Shares 8,100
Sale 29 Aug 2024
Value US$326,618.34 | Price 27.65 | Shares 11,812
Proposed sale 29 Aug 2024
Value US$336,642.00 | Price 28.50 | Shares 11,812
Buy 26 Aug 2024
Value US$1,674.60 | Price 27.91 | Shares 60
Sale 26 Aug 2024
Value US$77,256.20 | Price 27.79 | Shares 2,780
Proposed sale 26 Aug 2024
Value US$79,230.00 | Price 28.50 | Shares 2,780
Buy 7 Aug 2024
Value US$100,061.12 | Price 25.99 | Shares 3,850
Sale 31 Jul 2024
Value US$129,603.32 | Price 28.03 | Shares 4,624
Sale 31 Jul 2024
Value US$219,248.25 | Price 28.25 | Shares 7,761
Sale 31 Jul 2024
Value US$412,396.80 | Price 28.20 | Shares 14,624
Sale 30 Jul 2024
Value US$224,114.40 | Price 28.01 | Shares 8,000
Sale 29 Jul 2024
Value US$43,537.84 | Price 29.26 | Shares 1,488
Proposed sale 29 Jul 2024
Value US$1,076,661.00 | Price 29.50 | Shares 36,497
Buy 14 Jun 2024
Value US$1,123.50 | Price 22.47 | Shares 50
Sale 13 Jun 2024
Value US$226,420.00 | Price 22.64 | Shares 10,000
Proposed sale 13 Jun 2024
Value US$230,000.00 | Price 23.00 | Shares 10,000
Buy 6 Jun 2024
Value US$5,610.00 | Price 22.44 | Shares 250
Buy 11 Mar 2024
Value US$1,265.22 | Price 21.09 | Shares 60
Sale 4 Mar 2024
Value US$80,319.88 | Price 20.70 | Shares 3,880
Proposed sale 4 Mar 2024
Value US$81,500.00 | Price 21.01 | Shares 3,880
Buy 1 Mar 2024
Value US$146,646.41 | Price 20.65 | Shares 7,103
Buy 1 Mar 2024
Value US$146,646.41 | Price 20.65 | Shares 7,103
Buy 29 Feb 2024
Value US$60,129.55 | Price 20.76 | Shares 2,897
Buy 29 Feb 2024
Value US$60,129.55 | Price 20.76 | Shares 2,897
Sale 29 Feb 2024
Value US$101,216.95 | Price 21.05 | Shares 4,809
Sale 27 Feb 2024
Value US$379,146.04 | Price 20.83 | Shares 18,200
Sale 27 Feb 2024
Value US$37,845.00 | Price 21.03 | Shares 1,800
Sale 26 Feb 2024
Value US$44,496.06 | Price 21.19 | Shares 2,100
Proposed sale 26 Feb 2024
Value US$102,000.00 | Price 21.21 | Shares 4,809
Sale 23 Feb 2024
Value US$421,518.00 | Price 21.08 | Shares 20,000
Buy 22 Feb 2024
Value US$5,232.50 | Price 20.93 | Shares 250
Sale 22 Feb 2024
Value US$420,144.00 | Price 21.01 | Shares 20,000
Proposed sale 22 Feb 2024
Value US$1,500,000.00 | Price 22.00 | Shares 68,186
Buy 22 Feb 2024
Value US$113,872.15 | Price 20.92 | Shares 5,444
Buy 22 Feb 2024
Value US$113,872.15 | Price 20.92 | Shares 5,444
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-04 2026-05-04 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
12,369 +37.2%
34.48
US$187,604 		12,369 +37.2% 34.48 US$187,604
2026-03-16 2026-03-16 B Purchase
3.4
HERSETH MARY JO S.
Non-Executive Director
55,078 -4.0%
158.40
US$3,759,004 		55,078 -4.0% 158.40 US$3,759,004
2026-03-02 2026-02-26 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
40,066 +49.5%
27.81
US$1,811,251 		40,066 +49.5% 27.81 US$1,811,251
2026-02-26 2026-02-26 PrS Proposed sale
3.3
John Barkdidjija

Officer

Officer
4,905
32.62
US$160,000 		4,905 32.62 US$160,000
2026-02-17 2026-02-17 B Purchase
Doran Brian F

General Counsel

Officer
750 +inf%
33.13
US$24,847 		750 +inf% 33.13 US$24,847
2026-01-29 2026-01-28 B Purchase
3.3
CABRERA PHILLIP R.
Non-Executive Director
169 +4.3%
31.03
US$5,244 		169 +4.3% 31.03 US$5,244
2025-10-29 2025-10-28 S Sale
1.7
ABRAHAM THOMAS

PRESIDENT, SBC

Officer
20,000 -34.0%
26.87
US$537,430 		20,000 -34.0% 26.87 US$537,430
2025-10-29 2025-10-28 S Sale
1.7
ABRAHAM THOMAS

PRESIDENT, SBC

Officer
3,400 -5.5%
26.98
US$91,717 		3,400 -5.5% 26.98 US$91,717
2025-10-28 2025-10-28 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
65 +0.5%
27.56
US$1,791 		65 +0.5% 27.56 US$1,791
2025-09-15 2025-09-12 S Sale
2.1
Rose Dana

CHIEF HUMAN RESOURCES OFFICER

Officer
1,999 -16.4%
28.76
US$57,491 		1,999 -16.4% 28.76 US$57,491
2025-09-12 2025-09-12 PrS Proposed sale
2.1
Rose Dana

Officer

Officer
1,999
28.71
US$57,400 		1,999 28.71 US$57,400
2025-08-29 2025-08-28 S Sale
3.2
Ptacin Brogan

HEAD OF COMMERCIAL BANKING

Officer
11,812 -35.2%
29.10
US$343,729 		11,812 -35.2% 29.10 US$343,729
2025-08-28 2025-08-28 PrS Proposed sale
3.2
Ptacin Brogan

Officer

Officer
11,812
29.76
US$351,500 		11,812 29.76 US$351,500
2025-08-11 2025-08-08 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
60 +0.4%
25.71
US$1,542 		60 +0.4% 25.71 US$1,542
2025-06-13 2025-06-13 B Purchase
3.4
HERSETH MARY JO S.
Non-Executive Director
2,000 +12.1%
25.33
US$50,654 		2,000 +12.1% 25.33 US$50,654
2025-06-13 2025-06-13 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
164 +1.2%
25.29
US$4,147 		164 +1.2% 25.29 US$4,147
2025-06-13 2025-06-11 B Purchase
2.9
DEL VALLE PEROCHENA ANTONIO
Non-Executive Director Large shareholder
40,808 +inf%
24.75
US$1,009,998 		40,808 +inf% 24.75 US$1,009,998
2025-06-13 2025-06-11 B Purchase
3.4
HERENCIA ROBERTO R

CHIEF EXECUTIVE OFFICER

Executive Director
4,040 +1.3%
24.75
US$99,990 		4,040 +1.3% 24.75 US$99,990
2025-06-13 2025-06-11 B Purchase
3.6
KENT STEVEN P.
Non-Executive Director
4,125 +6.1%
24.75
US$102,094 		4,125 +6.1% 24.75 US$102,094
2025-06-12 2025-06-11 B Purchase
3.3
CABRERA PHILLIP R.
Non-Executive Director
2,360 +147.5%
24.75
US$58,410 		2,360 +147.5% 24.75 US$58,410
2025-06-12 2025-06-10 S Sale
2.0
BIGGAM MEGAN

EVP HEAD OF COMMUNITY BANKING

Officer
3,611 -17.0%
26.75
US$96,594 		3,611 -17.0% 26.75 US$96,594
2025-06-11 2025-06-09 S Sale
2.0
BIGGAM MEGAN

EVP HEAD OF COMMUNITY BANKING

Officer
8,576 -32.7%
26.75
US$229,449 		8,576 -32.7% 26.75 US$229,449
2025-06-10 2025-06-09 PrS Proposed sale
2.0
BIGGAM MEGAN

Officer

Officer
24,374
27.49
US$670,000 		24,374 27.49 US$670,000
2025-06-10 2025-06-09 PrS Proposed sale
2.0
BIGGAM MEGAN

Officer

Officer
12,187
27.49
US$335,000 		12,187 27.49 US$335,000
2025-06-10 2025-06-09 PrS Proposed sale
2.0
BIGGAM MEGAN

Officer

Officer
12,187
27.49
US$335,000 		12,187 27.49 US$335,000
2025-06-09 2025-06-09 PrS Proposed sale
2.0
BIGGAM MEGAN

Officer

Officer
24,374
27.49
US$670,000 		24,374 27.49 US$670,000
2025-06-09 2025-06-09 PrS Proposed sale
2.0
BIGGAM MEGAN

Officer

Officer
12,187
27.49
US$335,000 		12,187 27.49 US$335,000
2025-06-09 2025-06-09 PrS Proposed sale
2.0
BIGGAM MEGAN

Officer

Officer
12,187
27.49
US$335,000 		12,187 27.49 US$335,000
2025-03-07 2025-03-06 B Purchase
3.4
HERSETH MARY JO S.
Non-Executive Director
268 +1.7%
27.16
US$7,278 		268 +1.7% 27.16 US$7,278
2025-03-06 2025-03-04 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
65 +0.5%
27.77
US$1,805 		65 +0.5% 27.77 US$1,805
2025-02-28 2025-02-27 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
4,468 -18.4%
28.18
US$125,912 		4,468 -18.4% 28.18 US$125,912
2025-02-27 2025-02-27 PrS Proposed sale
3.3
Barkidjija John

Officer

Officer
4,468
28.76
US$128,500 		4,468 28.76 US$128,500
2025-02-26 2025-02-25 S Sale
1.7
ABRAHAM THOMAS

PRESIDENT, SBC

Officer
6,658 -9.7%
28.86
US$192,137 		6,658 -9.7% 28.86 US$192,137
2025-02-24 2025-02-25 PrS Proposed sale
1.7
THOMAS ABRAHAM

Officer

Officer
6,658
29.88
US$198,941 		6,658 29.88 US$198,941
2024-11-21 2024-11-20 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
50 +0.4%
30.56
US$1,528 		50 +0.4% 30.56 US$1,528
2024-11-12 2024-11-07 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
2,500 -11.0%
30.45
US$76,134 		2,500 -11.0% 30.45 US$76,134
2024-11-12 2024-11-07 S Sale
2.6
Paracchini Alberto J

PRESIDENT

Executive Director
10,000 -5.6%
30.51
US$305,057 		10,000 -5.6% 30.51 US$305,057
2024-11-12 2024-11-07 S Sale
3.2
Ptacin Brogan

HEAD OF COMMERCIAL BANKING

Officer
8,100 -31.7%
30.68
US$248,514 		8,100 -31.7% 30.68 US$248,514
2024-11-07 2024-11-07 PrS Proposed sale
2.6
Paracchini Alberto J

Officer

Officer
10,000
30.70
US$307,000 		10,000 30.70 US$307,000
2024-11-07 2024-11-07 PrS Proposed sale
3.3
Barkidjija John

Officer

Officer
2,500
30.40
US$76,002 		2,500 30.40 US$76,002
2024-11-07 2024-11-07 PrS Proposed sale
3.2
Brogan Ptacin

Director

Non-Executive Director
8,100
30.12
US$244,000 		8,100 30.12 US$244,000
2024-09-03 2024-08-29 S Sale
3.2
Ptacin Brogan

HEAD OF COMMERCIAL BANKING

Officer
11,812 -31.6%
27.65
US$326,618 		11,812 -31.6% 27.65 US$326,618
2024-08-29 2024-08-29 PrS Proposed sale
3.2
Ptacin Brogan

Officer

Officer
11,812
28.50
US$336,642 		11,812 28.50 US$336,642
2024-08-28 2024-08-26 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
60 +0.4%
27.91
US$1,675 		60 +0.4% 27.91 US$1,675
2024-08-28 2024-08-26 S Sale
2.1
Rose Dana

CHIEF HUMAN RESOURCES OFFICER

Officer
2,780 -24.0%
27.79
US$77,256 		2,780 -24.0% 27.79 US$77,256
2024-08-23 2024-08-26 PrS Proposed sale
2.1
Rose Dana

Officer

Officer
2,780
28.50
US$79,230 		2,780 28.50 US$79,230
2024-08-08 2024-08-07 B Purchase
2.8
Stewart Pamela C
Non-Executive Director
3,850 +154.9%
25.99
US$100,061 		3,850 +154.9% 25.99 US$100,061
2024-08-02 2024-07-31 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
4,624 -16.9%
28.03
US$129,603 		4,624 -16.9% 28.03 US$129,603
2024-08-02 2024-07-31 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
7,761 -25.5%
28.25
US$219,248 		7,761 -25.5% 28.25 US$219,248
2024-08-02 2024-07-31 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
14,624 -39.2%
28.20
US$412,397 		14,624 -39.2% 28.20 US$412,397
2024-07-31 2024-07-30 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
8,000 -26.1%
28.01
US$224,114 		8,000 -26.1% 28.01 US$224,114
2024-07-31 2024-07-29 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
1,488 -4.6%
29.26
US$43,538 		1,488 -4.6% 29.26 US$43,538
2024-07-29 2024-07-29 PrS Proposed sale
3.3
Barkidjija John

Officer

Officer
36,497
29.50
US$1,076,661 		36,497 29.50 US$1,076,661
2024-06-18 2024-06-14 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
50 +0.4%
22.47
US$1,124 		50 +0.4% 22.47 US$1,124
2024-06-13 2024-06-13 S Sale
3.3
Barkidjija John

HEAD OF CRE & SPECIALTY FIN

Officer
10,000 -24.6%
22.64
US$226,420 		10,000 -24.6% 22.64 US$226,420
2024-06-12 2024-06-13 PrS Proposed sale
3.3
Barkidjija John

Officer

Officer
10,000
23.00
US$230,000 		10,000 23.00 US$230,000
2024-06-07 2024-06-06 B Purchase
3.6
KENT STEVEN P.
Non-Executive Director
250 +1.4%
22.44
US$5,610 		250 +1.4% 22.44 US$5,610
2024-03-12 2024-03-11 B Purchase
3.3
KISTNER WILLIAM G
Non-Executive Director
60 +0.4%
21.09
US$1,265 		60 +0.4% 21.09 US$1,265
2024-03-05 2024-03-04 S Sale
1.9
JOHNSON MICHELLE LYNN

CHIEF RISK OFFICER

Officer
3,880 -45.6%
20.70
US$80,320 		3,880 -45.6% 20.70 US$80,320
2024-03-04 2024-03-04 PrS Proposed sale
1.9
JOHNSON MICHELLE LYNN

Officer

Officer
3,880
21.01
US$81,500 		3,880 21.01 US$81,500
2024-03-04 2024-03-01 B Purchase
2.9
DEL VALLE PEROCHENA ANTONIO
Non-Executive Director Large shareholder
7,103 +0.1%
20.65
US$146,646 		7,103 +0.1% 20.65 US$146,646
2024-03-04 2024-03-01 B Purchase
2.7
MBG INVESTORS I, L.P.
Large shareholder
7,103 +0.1%
20.65
US$146,646 		7,103 +0.1% 20.65 US$146,646
2024-03-04 2024-02-29 B Purchase
2.9
DEL VALLE PEROCHENA ANTONIO
Non-Executive Director Large shareholder
2,897 +0.0%
20.76
US$60,130 		2,897 +0.0% 20.76 US$60,130
2024-03-04 2024-02-29 B Purchase
2.7
MBG INVESTORS I, L.P.
Large shareholder
2,897 +0.0%
20.76
US$60,130 		2,897 +0.0% 20.76 US$60,130
2024-02-29 2024-02-29 S Sale
2.1
Rose Dana

CHIEF HUMAN RESOURCES OFFICER

Officer
4,809 -29.3%
21.05
US$101,217 		4,809 -29.3% 21.05 US$101,217
2024-02-28 2024-02-27 S Sale
2.6
Paracchini Alberto J

PRESIDENT

Executive Director
18,200 -9.3%
20.83
US$379,146 		18,200 -9.3% 20.83 US$379,146
2024-02-28 2024-02-27 S Sale
2.6
Paracchini Alberto J

PRESIDENT

Executive Director
1,800 -0.9%
21.03
US$37,845 		1,800 -0.9% 21.03 US$37,845
2024-02-28 2024-02-26 S Sale
2.6
Paracchini Alberto J

PRESIDENT

Executive Director
2,100 -1.0%
21.19
US$44,496 		2,100 -1.0% 21.19 US$44,496
2024-02-26 2024-02-26 PrS Proposed sale
2.1
Rose Dana

Officer

Officer
4,809
21.21
US$102,000 		4,809 21.21 US$102,000
2024-02-26 2024-02-23 S Sale
2.6
Paracchini Alberto J

PRESIDENT

Executive Director
20,000 -9.1%
21.08
US$421,518 		20,000 -9.1% 21.08 US$421,518
2024-02-26 2024-02-22 B Purchase
3.6
KENT STEVEN P.
Non-Executive Director
250 +1.4%
20.93
US$5,232 		250 +1.4% 20.93 US$5,232
2024-02-26 2024-02-22 S Sale
2.6
Paracchini Alberto J

PRESIDENT

Executive Director
20,000 -8.9%
21.01
US$420,144 		20,000 -8.9% 21.01 US$420,144
2024-02-23 2024-02-22 B Purchase
2.7
MBG INVESTORS I, L.P.
Large shareholder
5,444 +0.0%
20.92
US$113,872 		5,444 +0.0% 20.92 US$113,872
2024-02-23 2024-02-22 B Purchase
2.9
DEL VALLE PEROCHENA ANTONIO
Non-Executive Director Large shareholder
5,444 +0.0%
20.92
US$113,872 		5,444 +0.0% 20.92 US$113,872
2024-02-22 2024-02-22 PrS Proposed sale
2.6
Paracchini Alberto J

Officer

Officer
68,186
22.00
US$1,500,000 		68,186 22.00 US$1,500,000
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