OSBC Old Second Bancorp Inc.

NASDAQ
$24.92

Old Second Bancorp Inc. (OSBC) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

Insider signal Bearish Selling ran elevated versus OSBC's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 4 sellers in the last 90 days
Insiders buying
0
0 transactions
Insiders selling
3
4 transactions
Purchases
$0
0 shares
Sales
$2.0M
79,000 shares
Net activity
-$2.0M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $2.0M 4 transactions · 79,000 shares

Largest single sale: $643.2K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: May 11, 2026 , by Lyons Billy J Jr. .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
MCLEAN HUGH H Director Sell 25,000 $25.63 $640.8K 135,351 −15.6% of holding
COLLINS GARY S VICE CHAIRMAN Sell 5,000 $25.70 $128.5K 53,136 −8.6% of holding
MCLEAN HUGH H Director Sell 25,000 $25.73 $643.2K 135,351 −15.6% of holding
Campbell Darin Patrick President, Powersports Lending Sell 24,000 $25.53 $612.8K 250,589 −8.7% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.