OSBC

OLD SECOND BANCORP INC · Finance & Insurance · Market cap $1.2B

Insiders sold $4.3M net in the last 90 days ·4 sellers, 0 buyers· 2 of 7 sales under Rule 10b5-1 plans· latest Form 4 filed Sep 23, 2026

Insider Buying

$502

reported purchases (SEC code P)

Insider Selling

$8.3M

reported sales (SEC code S)

Unique Insiders

8

in the rolling window

Latest filing

Oct 21, 2026

COLLINS GARY S

OLD SECOND BANCORP INC (OSBC) has 72 SEC Form 4 filings (110 transaction rows) in the rolling window, disclosed by 8 distinct insiders. Most recent filing: Oct 21, 2026.

Inside the rolling window, 8 insiders at OLD SECOND BANCORP INC reported 1 open-market purchase totaling $502 and 20 open-market sales totaling $8.3M. The most active filer is VICE CHAIRMAN COLLINS GARY S with 6 filings. Insiders have net sold $5.5M over the trailing 6 months. The most recent open-market filing is a sale of 16,000 shares by VICE CHAIRMAN COLLINS GARY S, dated Sep 23, 2026, worth $395K.

  • Industry:Banks - Regional
  • CEO:James L. Eccher
  • Employees:1,062
  • HQ:Aurora, IL, US
  • IPO:1993-11-16
Source
Sale$395KSep 23SEC ↗
COLLINS GARY SFirst in 4 months
Sale$129KSep 11SEC ↗
Sale$641KSep 8SEC ↗
MCLEAN HUGH HFirst filing
Sale$643KSep 3SEC ↗
Campbell Darin PatrickFirst in 7 months
Sale$613KSep 3SEC ↗
Sale$495KAug 13SEC ↗
Eccher JamesFirst filing
Sale$1.4MAug 12SEC ↗
Sale$108KMay 26SEC ↗
Sale$211KMay 21SEC ↗
Lyons Billy J Jr.First filing
Purchase$502May 12SEC ↗
Pilmer DonaldFirst filing
Sale$519KMay 11SEC ↗
Sale$319KMay 11SEC ↗
COLLINS GARY SFirst filing
Sale$429KMar 23SEC ↗
Sale$733KFeb 19SEC ↗
Campbell Darin PatrickFirst in 3 months
Sale$2KFeb 18SEC ↗
Sale$42KFeb 5SEC ↗
Sale$100KJan 16SEC ↗
Sale$250KDec 9SEC ↗
Ladowicz JohnFirst filing
Sale$250KNov 26SEC ↗
Sale$557KNov 7SEC ↗
Sale$482KNov 7SEC ↗
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Earnings: last 7 quarters

EstimatedActual

Frequently asked questions

How many SEC Form 4 insider filings does OSBC have?

OLD SECOND BANCORP INC (OSBC) has 72 SEC Form 4 filings (110 transaction rows) in the rolling 365-day window, disclosed by 8 distinct insiders. Most recent filing: Oct 21, 2026.

When was the most recent SEC Form 4 filing for OSBC?

The most recent Form 4 filing for OSBC on Tracefour is dated Oct 21, 2026.

Who is the most active insider at OSBC?

The most active SEC Form 4 filer at OSBC in the rolling window is VICE CHAIRMAN COLLINS GARY S, with 6 filings.

What is the net insider flow at OSBC over the last 6 months?

Over the trailing 180 days, insiders at OSBC have net sold $5.5M based on SEC Form 4 disclosures.

What is the total insider buy and sell value at OSBC in the current window?

Inside the rolling window, insiders at OSBC bought $502 and sold $8.3M based on SEC Form 4 filings.

Can I get alerts for OSBC insider trading?

Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at OLD SECOND BANCORP INC (OSBC). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.

Related companies

OLD SECOND BANCORP INC is in the Finance & Insurance sector.