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Old Second Bancorp Inc. (OSBC)

Old Second Bancorp Inc. (OSBC) Insider Trading

Directors, officers and holders of more than 10% of OSBC report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 196 transactions on file: 1 with code P, 13 with code S and 36 with other codes.

DateInsiderCodeShares
Sep 30, 2026COLLINS GARY SJ Other30
Sep 30, 2026Pilmer DonaldJ Other11
Sep 30, 2026ADAMS BRADLEY S.J Other28
Sep 30, 2026Eccher JamesJ Other17
Sep 30, 2026Gartelmann Richard A JRJ Other35
Sep 30, 2026Eccher JamesJ Other92
Sep 23, 2026COLLINS GARY SS Sale16,000
Sep 8, 2026MCLEAN HUGH HS Sale25,000
Sep 4, 2026COLLINS GARY SS Sale5,000
Sep 3, 2026MCLEAN HUGH HS Sale25,000
Sep 2, 2026Campbell Darin PatrickS Sale24,000
Aug 12, 2026Eccher JamesS Sale19,313
Aug 11, 2026Eccher JamesS Sale55,687
Aug 10, 2026YORK JILL EL Small Acquisition12
Aug 10, 2026Lyons Billy J Jr.A Award20
Jun 30, 2026Eccher JamesJ Other21
Jun 30, 2026Gartelmann Richard A JRJ Other42
Jun 30, 2026Pilmer DonaldJ Other1
Jun 30, 2026Eccher JamesJ Other111
Jun 30, 2026COLLINS GARY SJ Other37
Jun 30, 2026ADAMS BRADLEY S.J Other34
Jun 30, 2026Pilmer DonaldJ Other14
May 22, 2026COLLINS GARY SS Sale5,120
May 21, 2026COLLINS GARY SS Sale10,000
May 11, 2026YORK JILL EL Small Acquisition14
May 11, 2026Lyons Billy J Jr.P Purchase24
May 11, 2026Pilmer DonaldS Sale25,000
May 8, 2026COLLINS GARY SS Sale5,000
May 8, 2026COLLINS GARY SS Sale10,000
Mar 31, 2026Eccher JamesJ Other22
Mar 31, 2026Eccher JamesJ Other369
Mar 31, 2026Gartelmann Richard A JRJ Other43
Mar 31, 2026Pilmer DonaldJ Other1
Mar 31, 2026COLLINS GARY SJ Other253
Mar 31, 2026Pilmer DonaldJ Other13
Mar 31, 2026ADAMS BRADLEY S.J Other35
Mar 20, 2026COLLINS GARY SS Sale22,154
Mar 2, 2026COLLINS GARY SA Award14,432
Mar 2, 2026Gartelmann Richard A JRF Tax Payment1,537
Mar 2, 2026Eccher JamesA Award43,818
Mar 2, 2026COLLINS GARY SF Tax Payment4,228
Mar 2, 2026Pilmer DonaldA Award9,201
Mar 2, 2026ADAMS BRADLEY S.A Award15,657
Mar 2, 2026Pilmer DonaldF Tax Payment2,720
Mar 2, 2026ADAMS BRADLEY S.F Tax Payment4,587
Mar 2, 2026Gartelmann Richard A JRA Award4,523
Mar 2, 2026Eccher JamesF Tax Payment12,838
Feb 21, 2026ADAMS BRADLEY S.F Tax Payment2,923
Feb 21, 2026Temple Rocks PattiF Tax Payment3,077
Feb 21, 2026Williams John JRJ Other3,077

The full Form 4 history is on the OSBC company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.