OSBC insider buying and SEC filings, explained
Old Second Bancorp Inc. · CIK 357173
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- State Commercial Banks
- State of incorporation
- DE
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$6.4M
Planned sales (10b5-1)
$1.9M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 23, 2026 | Sale | Gary S. Collins (Director and Vice Chairman) sold 16,000 shares at about $24.69 ($395K). Holdings down 53% to 14,136 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 23, 2026 |
| Sep 4, 2026 | Sale | Gary S. Collins (Director and Vice Chairman) sold 5,000 shares indirectly (by retirement or benefit plan) at $25.71 ($129K). Holdings by retirement or benefit plan down 9% to 53,136 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 11, 2026 |
| Sep 8, 2026 | Sale | Hugh H. Mclean (Director) sold 25,000 shares at about $25.63 ($641K). Holdings down 16% to 135,351 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 8, 2026 |
| Sep 3, 2026 | Sale | Hugh H. Mclean (Director) sold 25,000 shares at $25.73 ($643K). Holdings down 16% to 135,351 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| Sep 2, 2026 | Sale | Darin Patrick Campbell (President / COO and Director) sold 24,000 shares at about $25.53 ($613K). Holdings down 9% to 250,589 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 3, 2026 |
| Aug 12, 2026 | Planned (10b5-1) | James Eccher (CEO and Director) sold 19,313 shares at about $25.61 ($495K), marked as a 10b5-1 plan trade. Holdings down 6% to 303,399 shares. | SEC filing Filed Aug 13, 2026 |
| Aug 11, 2026 | Planned (10b5-1) | James Eccher (CEO and Director) sold 55,687 shares at about $25.46 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 15% to 322,712 shares. | SEC filing Filed Aug 12, 2026 |
| May 22, 2026 | Sale | Gary S. Collins (Director and Vice Chairman) sold 5,120 shares indirectly (by retirement or benefit plan) at $21.12 ($108K). Holdings by retirement or benefit plan down 8% to 58,136 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 26, 2026 |
| May 21, 2026 | Sale | Gary S. Collins (Director and Vice Chairman) sold 10,000 shares indirectly (by retirement or benefit plan) at $21.12 ($211K). Holdings by retirement or benefit plan down 14% to 63,256 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 21, 2026 |
| May 11, 2026 | Purchase (code P) | Billy J Lyons Jr. (Director) bought 24 shares at $20.90 ($502), reported as a purchase (code P). Holdings up <1% to 20,097 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 12, 2026 |
| May 11, 2026 | Sale | Donald Pilmer (EVP) sold 25,000 shares at $20.75 ($519K). Holdings down 34% to 48,054 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 11, 2026 |
| May 8, 2026 | Sale | Gary S. Collins (Director and Vice Chairman) sold 15,000 shares directly and indirectly (by retirement or benefit plan) at about $21.24 ($319K). Direct holdings down 25% to 30,136 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 11, 2026 |
| Mar 20, 2026 | Sale | Gary S. Collins (Director and Vice Chairman) sold 22,154 shares at about $19.38 ($429K). Holdings down 36% to 40,136 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 23, 2026 |
| Feb 18, 2026 | Sale | Darin Patrick Campbell (President / COO and Director) sold 35,000 shares at $20.94 ($733K). Holdings down 11% to 274,589 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 19, 2026 |
| Feb 13, 2026 | Sale | Darin Patrick Campbell (President / COO and Director) sold 91 shares at $20.70 ($2K). Holdings down <1% to 309,589 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 18, 2026 |
| Feb 5, 2026 | Sale | Richard A Gartelmann JR (EVP) sold 2,000 shares at $20.98 ($42K). Holdings down 7% to 24,874 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 5, 2026 |
| Jan 15, 2026 | Sale | John Ladowicz (Director) sold 4,762 shares indirectly (by retirement or benefit plan) at about $20.95 ($100K). Holdings by retirement or benefit plan down 3% to 144,892 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 16, 2026 |
| Dec 9, 2025 | Sale | John Ladowicz (Director) sold 12,500 shares indirectly (by retirement or benefit plan) at $20.00 ($250K). Holdings by retirement or benefit plan down 8% to 149,654 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 9, 2025 |
| Nov 26, 2025 | Sale | John Ladowicz (Director) sold 13,150 shares indirectly (by retirement or benefit plan) at $19.01 ($250K). Holdings by retirement or benefit plan down 8% to 162,154 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 26, 2025 |
| Oct 30–31, 2025 | Sale | Darin Patrick Campbell (President / COO and Director) sold 57,565 shares indirectly (by retirement or benefit plan) between Oct 30, 2025 and Oct 31, 2025 at about $18.06 ($1.0M). Holdings by retirement or benefit plan down 100% to 0 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 7, 2025 |
47 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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