Old Second Bancorp Inc (OSBC) Insider Ownership

Historic Insider Ownership Trends

Old Second Bancorp's top three insider shareholders as of May 23, 2026 are James Eccher (Chairman And Ceo, 378.40K shares), Darin Patrick Campbell (President, Powersports Lending, 274.59K shares), James Eccher (Chairman And Ceo, 213.29K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Hugh H Mclean - 164,635 0 22 Feb, 2024
Gary S Collins Vice Chairman 0 82,135 31 Dec, 2021
Edward Bonifas - 179,615 0 22 Feb, 2024
William Kane - 60,510 0 23 Feb, 2023
William B Skoglund Chairman 0 55,408 09 Dec, 2022
Dennis L Klaeser - 11,941 0 22 Feb, 2024
Jill E York - 15,714 0 22 Feb, 2024
Barry Finn - 93,021 0 22 Feb, 2024
James Eccher Chairman And Ceo 378,399 0 04 Mar, 2026
John Ladowicz - 0 144,892 16 Jan, 2026
Duane Suits - 44,883 0 15 Feb, 2022
Bradley S. Adams Cfo Coo 160,401 0 04 Mar, 2026
James F Tapscott - 41,273 0 21 Feb, 2023
Rocks Patti Temple - 24,635 0 22 Feb, 2024
Donald Pilmer Evp 73,054 0 04 Mar, 2026
Billy J Jr. Lyons - 16,996 0 10 Feb, 2026
Richard A Jr Gartelmann Evp 29,551 0 04 Mar, 2026
John Jr Williams - 41,114 0 22 Feb, 2024
Keith Kotche - 191,745 0 22 Feb, 2024
Darin Patrick Campbell President, Powersports Lending 274,589 0 19 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock A 13 $0.00 4,023 I J
31 Mar, 2026 Richard A Jr Gartelmann Old Second Bancorp, Inc. Common Stock A 43 $0.00 12,606 I J
31 Mar, 2026 Gary S Collins Old Second Bancorp, Inc. Common Stock A 253 $0.00 7,058 I J
31 Mar, 2026 James Eccher Old Second Bancorp, Inc. Common Stock A 369 $0.00 33,387 I J
31 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock A 13 $0.00 4,023 I J
31 Mar, 2026 Bradley S. Adams Old Second Bancorp, Inc. Common Stock A 35 $0.00 10,159 I J
31 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock A 1 $0.00 183 I J
31 Mar, 2026 James Eccher Old Second Bancorp, Inc. Common Stock A 22 $0.00 6,357 I J
31 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock A 1 $0.00 183 I J
20 Mar, 2026 Gary S Collins Old Second Bancorp, Inc. Common Stock D 22,154 $19.38 40,136 D S
02 Mar, 2026 Gary S Collins Old Second Bancorp, Inc. Common Stock A 14,432 $0.00 5,462 D A
02 Mar, 2026 Richard A Jr Gartelmann Old Second Bancorp, Inc. Common Stock A 4,523 $0.00 26,565 D A
02 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock A 9,201 $0.00 66,573 D A
02 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock A 9,201 $0.00 66,573 D A
02 Mar, 2026 James Eccher Old Second Bancorp, Inc. Common Stock A 43,818 $0.00 391,237 D A
02 Mar, 2026 Bradley S. Adams Old Second Bancorp, Inc. Common Stock A 15,657 $0.00 164,988 D A
02 Mar, 2026 Bradley S. Adams Old Second Bancorp, Inc. Common Stock D 4,587 $19.91 160,401 D F
02 Mar, 2026 James Eccher Old Second Bancorp, Inc. Common Stock D 12,838 $19.91 378,399 D F
02 Mar, 2026 Richard A Jr Gartelmann Old Second Bancorp, Inc. Common Stock D 1,537 $19.91 29,551 D F
02 Mar, 2026 Donald Pilmer Old Second Bancorp, Inc. Common Stock D 2,720 $19.91 73,054 D F