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CIK 0000357173 · Large accelerated filer

OLD SECOND BANCORP INC

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Ticker
OSBC
Exchange
Nasdaq
Industry
State Commercial Banks
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
363143493
Phone
6308920202
Business address
37 S RIVER ST, AURORA, IL, 60507
Open-market buys, last 90 days
$572
in 1 filing
Open-market sales, last 90 days
$2,420,340
in 5 filings

Net −$2,419,767. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. MCLEAN HUGH H −$1.3M Director sold 27% of stake
  2. Campbell Darin Patrick −$613K President, Powersports Lending sold 9% of stake
  3. COLLINS GARY S −$524K VICE CHAIRMAN sold 60% of stake
  4. Lyons Billy J Jr. +$572 Director 1 filing

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-09-08 MCLEAN HUGH H Director Sale −25,000 $25.63 $641K 135,351
2026-09-03 MCLEAN HUGH H Director Sale −25,000 $25.73 $643K 135,351
2026-02-21 MCLEAN HUGH H Director Other disposition −3,077 10,595
2026-02-21 MCLEAN HUGH H Director Other acquisition +3,077 160,351
2026-02-21 MCLEAN HUGH H Director Shares withheld for taxes −3,077 $20.57 $63K 10,595
2026-02-17 MCLEAN HUGH H Director Grant or award +3,121 13,672

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