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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
2026-02-18 Campbell Darin Patrick President, Powersports Lending Sale −35,000 $20.94 $733K 274,589
2026-02-17 Campbell Darin Patrick President, Powersports Lending Grant or award +10,562 10,562
2026-02-17 Kotche Keith Director Grant or award +3,121 13,672
2026-02-17 Williams John JR Director Grant or award +3,121 13,672
2026-02-17 Gartelmann Richard A JR EVP Grant or award +5,912 26,464
2026-02-17 Lyons Billy J Jr. Director Grant or award +3,121 13,672
2026-02-17 Pilmer Donald EVP Grant or award +11,292 50,010
2026-02-17 Temple Rocks Patti Director Grant or award +3,121 13,672
2026-02-17 ADAMS BRADLEY S. CFO & COO Grant or award +25,428 102,872
2026-02-17 Eccher James CHAIRMAN AND CEO Grant or award +54,010 238,328
2026-02-17 Finn Barry Director Grant or award +3,121 13,672
2026-02-17 YORK JILL E Director Grant or award +3,121 13,672
2026-02-17 KLAESER DENNIS L Director Grant or award +3,121 13,672
2026-02-17 BONIFAS EDWARD Director Grant or award +3,121 13,672
2026-02-17 COLLINS GARY S VICE CHAIRMAN Grant or award +8,858 53,804
2026-02-17 MCLEAN HUGH H Director Grant or award +3,121 13,672
2026-02-13 Campbell Darin Patrick President, Powersports Lending Sale −91 $20.70 $2K 309,589
2026-02-09 YORK JILL E Director Other acquisition +14.12 $21.21 $300 4,319.64
2026-02-09 Lyons Billy J Jr. Director Grant or award +23 $21.21 $488 16,996
2026-02-05 Gartelmann Richard A JR EVP Sale −2,000 $20.98 $42K 24,874

Page 5 of 9 · 168 trades