WallStreetZenWallStreetZen

NASDAQ: OSBC
Old Second Bancorp Inc Stock Ownership - Who owns Old Second Bancorp?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Old Second Bancorp Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Gary S. CollinsVICE CHAIRMAN2026-03-2022,154$19.38
$429.43kSell
Bradley S. AdamsCFO COO2026-03-024,587$19.91
$91.33kSell
Gary S. CollinsVICE CHAIRMAN2026-03-024,228$19.91
$84.18kSell
Donald PilmerEVP2026-03-022,720$19.91
$54.16kSell
Richard A. Gartelmann Jr.EVP2026-03-021,537$19.91
$30.60kSell
James EccherCHAIRMAN AND CEO2026-03-0212,838$19.91
$255.60kSell
Jill E. YorkDirector2026-02-213,077$20.57
$63.29kSell
Edward BonifasDirector2026-02-213,077$20.57
$63.29kSell
Gary S. CollinsVICE CHAIRMAN2026-02-212,784$20.57
$57.27kSell
James EccherCHAIRMAN AND CEO2026-02-217,515$20.57
$154.58kSell

1 of 4

OSBC insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when OSBC insiders and whales buy or sell their stock.

OSBC Shareholders

What type of owners hold Old Second Bancorp Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc7.89%4,155,906$83.78MInstitution
Vanguard Group Inc6.22%3,278,388$66.09MInstitution
Dimensional Fund Advisors LP4.29%2,260,874$45.58MInstitution
Fj Capital Management LLC3.47%1,829,665$36.89MInstitution
Davis Asset Management LP3.31%1,745,523$35.19MInstitution
State Street Corp2.92%1,539,419$31.03MInstitution
American Century Companies Inc2.79%1,470,185$29.64MInstitution
Geode Capital Management LLC2.59%1,365,448$27.53MInstitution
Kennedy Capital Management LLC2.40%1,267,042$25.54MInstitution
Goldman Sachs Group Inc 12.40%1,263,223$25.47MInstitution

1 of 3

OSBC vs Bank Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
OSBC70.53%8.89%Net SellingNet Selling
HFWA71.96%5.40%Net BuyingNet Buying
OCFC80.05%9.68%Net SellingNet Selling
CTBI64.07%21.24%Net BuyingNet Buying
FSUN33.92%27.52%Net BuyingNet Buying
View Top Bank Stocks

Old Second Bancorp Stock Ownership FAQ

Who owns Old Second Bancorp?

Old Second Bancorp (NASDAQ: OSBC) is owned by 70.53% institutional shareholders, 8.89% Old Second Bancorp insiders, and 20.58% retail investors. John Ladowicz is the largest individual Old Second Bancorp shareholder, owning 1.03M shares representing 1.96% of the company. John Ladowicz's Old Second Bancorp shares are currently valued at $20.86M.

If you're new to stock investing, here's how to buy Old Second Bancorp stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.