Old Second Bancorp (OSBC) Insider Trading
Officer, director, and 10%+ owner transactions reported to the SEC on Form 4, with buy/sell totals and cluster activity for Old Second Bancorp.
Bought (12 mo)
$502
Sold (12 mo)
$8,335,016
Insiders Buying (12 mo)
1
Insiders Selling (12 mo)
7
Form 4 Filings (All Time)
329
Most Recent Purchase
May 12, 2026
Billy J Lyons Jr
Director
$502
Most Recent Sale
September 23, 2026
Gary S Collins
Officer
$395,080
Buys (90d)
0
Sells (90d)
7
Recent Insider Transactions
| Filed | Insider | Role | Type | Value | % Change |
|---|---|---|---|---|---|
| 2026-10-21 | York Jill E | Director | Other | — | — |
| 2026-10-21 | Williams John Jr | Director | Other | — | — |
| 2026-10-21 | York Jill E | Director | Other | — | +1.0% |
| 2026-10-20 | Klaeser Dennis L | Director | Other | — | — |
| 2026-10-20 | Kotche Keith | Director | Other | — | — |
| 2026-10-20 | Mclean Hugh H | Director | Other | — | — |
| 2026-10-20 | Temple Rocks Patti | Director | Other | — | — |
| 2026-10-20 | Lyons Billy J Jr. | Director | Other | — | — |
| 2026-10-20 | Bonifas Edward | Director | Other | — | — |
| 2026-10-20 | Finn Barry | Director | Other | — | — |
| 2026-10-01 | Gartelmann Richard A Jr | Officer | Other | — | +0.1% |
| 2026-10-01 | Pilmer Donald | Officer | Other | — | +0.0% |
| 2026-10-01 | Eccher James | CEO | Other | — | +0.0% |
| 2026-10-01 | Adams Bradley S. | CFO | Other | — | +0.0% |
| 2026-10-01 | Collins Gary S | Officer | Other | — | +0.0% |
| 2026-09-23 | Collins Gary S | Officer | Sell | $395,080 | -12.5% |
| 2026-09-11 | Collins Gary S | Officer | Sell | $128,525 | -4.9% |
| 2026-09-08 | Mclean Hugh H | Director | Other | — | — |
| 2026-09-08 | Mclean Hugh H | Director | Sell | $640,768 | -15.6% |
| 2026-09-03 | Campbell Darin Patrick | Officer | Sell | $612,792 | -8.4% |
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