NASDAQ:OSBC

Old Second Bancorp Stock Insider Trading

Financial Services > Banks - Regional

Buy OSBC

*Your capital is at risk

$22.08

+0.190 (+0.87%)

At Close: Jun 22, 2026

Old Second Bancorp Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -73.21. In total, the insiders bought 349.11K and sold 282.43K OSBC shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-73.21
● Buy	349.11K shares
● Sell	282.43K shares
65% Buy Activity Negligible or No Correlation
Sell Signal Medium Confidence Mar 20, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -73.21. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
May 22, 2026 Sell	Old Second Bancorp, Inc. Common Stock S-Sale	Collins Gary S Vice Chairman	CEO / President	5 120 Value: $108.1K
May 21, 2026 Sell	Old Second Bancorp, Inc. Common Stock S-Sale	Collins Gary S Vice Chairman	CEO / President	10 000 Value: $211.2K
May 11, 2026 Buy	Old Second Bancorp, Inc. Common Stock P-Purchase	Lyons Billy J Jr. Director	Director	24 Value: $502
May 11, 2026 Sell	Old Second Bancorp, Inc. Common Stock S-Sale	Pilmer Donald EVP	Officer	25 000 Value: $518.8K
May 08, 2026 Sell	Old Second Bancorp, Inc. Common Stock S-Sale	Collins Gary S Vice Chairman	CEO / President	10 000 Value: $212.4K
May 08, 2026 Sell	Old Second Bancorp, Inc. Common Stock S-Sale	Collins Gary S Vice Chairman	CEO / President	5 000 Value: $106.1K
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Eccher James Chairman And CEO	CEO / President	22 Value: $444
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Eccher James Chairman And CEO	CEO / President	369 Value: $7K
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Pilmer Donald EVP	Officer	1 Value: $20
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Adams Bradley S. CFO & COO	C-Suite Officer	35 Value: $706
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Collins Gary S Vice Chairman	CEO / President	253 Value: $5K
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Pilmer Donald EVP	Officer	13 Value: $262
Mar 31, 2026 Buy	Old Second Bancorp, Inc. Common Stock J-Other	Gartelmann Richard A Jr EVP	Officer	43 Value: $867
Mar 20, 2026 Sell	Old Second Bancorp, Inc. Common Stock S-Sale	Collins Gary S Vice Chairman	CEO / President	22 154 Value: $429.4K
Mar 02, 2026 Buy	Old Second Bancorp, Inc. Common Stock A-Award	Gartelmann Richard A Jr EVP	Officer	4 523 Value: $90.1K
Mar 02, 2026 Sell	Old Second Bancorp, Inc. Common Stock F-InKind	Gartelmann Richard A Jr EVP	Officer	1 537 Value: $30.6K
Mar 02, 2026 Buy	Old Second Bancorp, Inc. Common Stock A-Award	Pilmer Donald EVP	Officer	9 201 Value: $183.2K
Mar 02, 2026 Sell	Old Second Bancorp, Inc. Common Stock F-InKind	Pilmer Donald EVP	Officer	2 720 Value: $54.2K
Mar 02, 2026 Buy	Old Second Bancorp, Inc. Common Stock A-Award	Collins Gary S Vice Chairman	CEO / President	14 432 Value: $287.3K
Mar 02, 2026 Sell	Old Second Bancorp, Inc. Common Stock F-InKind	Collins Gary S Vice Chairman	CEO / President	4 228 Value: $84.2K
Mar 02, 2026 Buy	Old Second Bancorp, Inc. Common Stock A-Award	Adams Bradley S. CFO & COO	C-Suite Officer	15 657 Value: $311.7K
Mar 02, 2026 Sell	Old Second Bancorp, Inc. Common Stock F-InKind	Adams Bradley S. CFO & COO	C-Suite Officer	4 587 Value: $91.3K
Mar 02, 2026 Buy	Old Second Bancorp, Inc. Common Stock A-Award	Eccher James Chairman And CEO	CEO / President	43 818 Value: $872.4K
Mar 02, 2026 Sell	Old Second Bancorp, Inc. Common Stock F-InKind	Eccher James Chairman And CEO	CEO / President	12 838 Value: $255.6K
Feb 21, 2026 Sell	Restricted Stock Units F-InKind	Eccher James Chairman And CEO	CEO / President	7 515 Value: $154.6K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT OLD SECOND BANCORP

Old Second Bancorp, Inc. operates as the bank holding company for Old Second National Bank that provides community banking services. It provides demand, NOW, money market, savings, time deposit, individual retirement, and checking accounts, as well as certificate of deposit accounts. The company also offers commercial loans; lease financing receivables; commercial real estate loans; construction loans; residential real estate loans, such as resid...

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