Old Second Bancorp (OSBC) Institutional Ownership

$24.99 0.00 (0.00%)

Closing price 09/18/2026 04:00 PM Eastern

Extended Trading

$25.20 +0.21 (+0.84%)

As of 09/18/2026 07:30 PM Eastern

Compare

Current Institutional Ownership Percentage: 67.76%
Number of Institutional Buyers (last 12 months): 121
Total Institutional Inflows (last 12 months): $329.39M

Number of Institutional Sellers (last 12 months): 62
Total Institutional Outflows (last 12 months): $47.29M

Get OSBC Insider Trade Alerts

Want to know when executives and insiders are buying or selling Old Second Bancorp stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Subscribe Now

SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.

OSBC Institutional Buying and Selling by Quarter

Old Second Bancorp Major Shareholders & Ownership History

Export

Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/9/2026	Integrated Wealth Concepts LLC	1,868	$44K	0.0%	N/A	0.004%
9/9/2026	NewEdge Advisors LLC	8,660	$202K	0.0%	N/A	0.017%
9/9/2026	Squarepoint Ops LLC	167,884	$3.92M	0.0%	-1.6%	0.330%
8/20/2026	Susquehanna Fundamental Investments LLC	50,693	$1.18M	0.0%	+208.6%	0.100%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	76,132	$1.78M	0.0%	+12.7%	0.150%
8/19/2026	Hsbc Holdings PLC	66,312	$1.54M	0.0%	-22.2%	0.130%
8/19/2026	Wellington Management Group LLP	544,345	$12.69M	0.0%	-36.5%	1.070%
8/18/2026	Empowered Funds LLC	248,627	$5.80M	0.0%	N/A	0.489%
8/17/2026	Bank of America Corp DE	372,648	$8.69M	0.0%	N/A	0.732%
8/15/2026	Jupiter Topco LLC	26,232	$612K	0.0%	N/A	0.052%
Get the Latest News and Ratings for OSBC and Related Stocks Enter your email address below to receive the latest news and analysts' ratings for Old Second Bancorp and its competitors with MarketBeat's FREE daily newsletter.
8/14/2026	Hsbc Holdings PLC	66,312	$1.54M	0.0%	N/A	0.130%
8/14/2026	Legal & General Group Plc	40,578	$946K	0.0%	N/A	0.080%
8/14/2026	The Manufacturers Life Insurance Company	872,651	$20.35M	0.0%	N/A	1.715%
8/13/2026	Sanctuary Advisors LLC	33,909	$791K	0.0%	N/A	0.067%
8/13/2026	Davis Asset Management L.P.	1,800,000	$41.98M	1.1%	N/A	3.538%
8/12/2026	Ieq Capital LLC	50,309	$1.17M	0.0%	N/A	0.099%
8/11/2026	MSH Capital Advisors LLC	84,826	$1.98M	0.3%	N/A	0.167%
8/10/2026	Great Lakes Advisors LLC	203,909	$4.76M	0.0%	N/A	0.396%
8/7/2026	BlackRock Inc.	4,298,683	$100.25M	0.0%	N/A	8.358%
8/7/2026	Deutsche Bank AG	51,034	$1.19M	0.0%	N/A	0.099%
8/6/2026	Bank of New York Mellon Corp	342,013	$7.98M	0.0%	N/A	0.665%
8/6/2026	GSA Capital Partners LLP	34,819	$812K	0.1%	N/A	0.068%
6/3/2026	Parallel Advisors LLC	2,622	$53K	0.0%	+181.3%	0.005%
5/19/2026	Bank of America Corp DE	331,330	$6.68M	0.0%	-3.3%	0.644%
5/19/2026	Janus Henderson Group PLC	26,232	$529K	0.0%	+67.8%	0.051%
5/18/2026	Amundi	13,706	$276K	0.0%	N/A	0.027%
5/18/2026	Royal Bank of Canada	31,569	$637K	0.0%	-9.4%	0.061%
5/18/2026	Empowered Funds LLC	233,559	$4.71M	0.0%	+6.1%	0.454%
5/16/2026	The Manufacturers Life Insurance Company	878,670	$17.71M	0.0%	-1.5%	1.708%
5/16/2026	Quantinno Capital Management LP	49,879	$1.01M	0.0%	+58.8%	0.097%
5/15/2026	Jacobs Asset Management LLC	150,000	$3.02M	1.8%	-46.7%	0.292%
5/14/2026	Renaissance Technologies LLC	90,225	$1.82M	0.0%	+4.5%	0.175%
5/14/2026	Arrowstreet Capital Limited Partnership	141,026	$2.84M	0.0%	-34.9%	0.274%
5/14/2026	Sei Investments Co.	203,088	$4.09M	0.0%	+73.5%	0.395%
5/13/2026	Cetera Investment Advisers	11,702	$236K	0.0%	-27.0%	0.023%
5/13/2026	First Trust Advisors LP	18,760	$378K	0.0%	-10.3%	0.036%
5/7/2026	Dimensional Fund Advisors LP	2,388,862	$48.16M	0.0%	+5.7%	4.614%
5/7/2026	Parallel Advisors LLC	2,622	$53K	0.0%	+181.3%	0.005%
5/7/2026	Sentinel Trust Co. LBA	14,051	$283K	0.0%	-25.5%	0.027%
5/6/2026	Bartlett & CO. Wealth Management LLC	6,299	$130K	0.0%	-48.6%	0.012%
Ticker Revealed: Pre-IPO Access to "Next Elon Musk" Company (Ad) We’ve found The Next Elon Musk… and what we believe to be the next Tesla. It’s already racked up $26 billion in government contracts. Peter Thiel just bet $1 Billion on it. 👉 Unlock the ticker now and get it completely free.
5/5/2026	Bank of New York Mellon Corp	337,264	$6.80M	0.0%	-2.0%	0.651%
5/4/2026	Principal Financial Group Inc.	75,090	$1.51M	0.0%	+50.8%	0.145%
4/30/2026	Hsbc Holdings PLC	85,183	$1.72M	0.0%	+6.3%	0.165%
4/28/2026	Hudson Edge Investment Partners Inc.	32,082	$647K	0.1%	-44.9%	0.062%
4/27/2026	Y Intercept Hong Kong Ltd	52,576	$1.06M	0.0%	N/A	0.102%
4/23/2026	Forum Financial Management LP	205,661	$4.15M	0.1%	-1.5%	0.397%
4/22/2026	Sterling Capital Management LLC	1,671	$34K	0.0%	-93.2%	0.003%
4/22/2026	River Street Advisors LLC	746,660	$15.05M	5.1%	+104.0%	1.442%
4/20/2026	Assenagon Asset Management S.A.	17,860	$360K	0.0%	N/A	0.034%
4/17/2026	Sara Bay Financial	94,063	$1.90M	0.6%	-5.0%	0.182%
4/16/2026	SG Americas Securities LLC	11,371	$229K	0.0%	-49.5%	0.022%
3/17/2026	Rockefeller Capital Management L.P.	1,396	$27K	0.0%	N/A	0.003%
3/9/2026	EMC Capital Management	7,170	$140K	0.1%	-15.0%	0.014%
3/6/2026	Hsbc Holdings PLC	80,105	$1.56M	0.0%	+135.2%	0.152%
2/19/2026	Invesco Ltd.	80,545	$1.57M	0.0%	+4.6%	0.153%
2/18/2026	Mercer Global Advisors Inc. ADV	14,445	$282K	0.0%	+11.8%	0.027%
2/18/2026	Empowered Funds LLC	220,121	$4.29M	0.0%	+10.9%	0.418%
2/18/2026	Wellington Management Group LLP	969,708	$18.91M	0.0%	+521.2%	1.841%
2/18/2026	Millennium Management LLC	313,560	$6.11M	0.0%	N/A	0.595%
2/18/2026	Bridgeway Capital Management LLC	427,617	$8.34M	0.2%	-15.3%	0.812%
2/17/2026	AQR Capital Management LLC	447,118	$8.72M	0.0%	-13.7%	0.849%
2/17/2026	Price T Rowe Associates Inc. MD	34,262	$669K	0.0%	+6.3%	0.065%
2/17/2026	Osaic Holdings Inc.	27,984	$546K	0.0%	+6.9%	0.053%
2/17/2026	Adage Capital Partners GP L.L.C.	243,192	$4.74M	0.0%	N/A	0.462%
2/17/2026	California State Teachers Retirement System	47,172	$920K	0.0%	+19.7%	0.090%
2/17/2026	Russell Investments Group Ltd.	112,121	$2.19M	0.0%	+0.8%	0.213%
2/17/2026	State of Wisconsin Investment Board	16,141	$315K	0.0%	N/A	0.031%
2/17/2026	Captrust Financial Advisors	18,444	$360K	0.0%	N/A	0.035%
2/17/2026	Royal Bank of Canada	34,831	$679K	0.0%	+7.5%	0.066%
2/16/2026	Squarepoint Ops LLC	48,472	$945K	0.0%	+368.1%	0.092%
2/16/2026	Verition Fund Management LLC	24,375	$475K	0.0%	+16.2%	0.046%
2/16/2026	Mariner LLC	21,001	$410K	0.0%	+28.2%	0.040%
2/16/2026	FJ Capital Management LLC	1,829,665	$35.68M	4.0%	-4.7%	3.474%
2/16/2026	Jacobs Asset Management LLC	281,477	$5.49M	3.1%	-41.1%	0.534%
2/16/2026	Kennedy Capital Management LLC	1,267,042	$24.71M	0.5%	+15.9%	2.406%
2/16/2026	Arax Advisory Partners	1,309	$26K	0.0%	-94.3%	0.002%
2/16/2026	Barclays PLC	143,188	$2.79M	0.0%	+22.8%	0.272%
2/13/2026	Parkside Financial Bank & Trust	2,291	$45K	0.0%	N/A	0.004%
2/13/2026	The Manufacturers Life Insurance Company	891,878	$17.39M	0.0%	-2.7%	1.693%
2/13/2026	Rafferty Asset Management LLC	43,049	$839K	0.0%	+17.1%	0.082%
2/13/2026	First Trust Advisors LP	20,911	$408K	0.0%	-28.3%	0.040%
2/13/2026	Police & Firemen s Retirement System of New Jersey	14,232	$278K	0.0%	+18.7%	0.027%
2/13/2026	State Street Corp	1,539,419	$30.02M	0.0%	+12.6%	2.923%
2/13/2026	Ieq Capital LLC	57,265	$1.12M	0.0%	+7.5%	0.109%
2/13/2026	Boston Partners	817,311	$15.99M	0.0%	N/A	1.552%
2/13/2026	Martingale Asset Management L P	110,468	$2.15M	0.1%	-18.3%	0.210%
2/13/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	64,739	$1.26M	0.0%	+24.4%	0.123%
2/13/2026	Wells Fargo & Company MN	56,544	$1.10M	0.0%	+46.2%	0.107%
2/13/2026	Davis Asset Management L.P.	1,745,523	$34.04M	1.2%	+16.4%	3.314%
2/13/2026	Gator Capital Management LLC	337,995	$6.59M	1.3%	+0.8%	0.642%
Small Colorado Company (Backed by Sam Altman) Could Save U.S. Power Grid (Ad) A small Colorado company has secured rights to technology that could prevent the U.S. public power grid from collapsing — and billionaire Sam Altman is now an investor. This under-the-radar firm is drawing serious attention from those watching the energy infrastructure space closely. Click here to learn this company's name for free today
2/13/2026	Quadrant Capital Group LLC	2,523	$49K	0.0%	+32.7%	0.005%
2/12/2026	DRW Securities LLC	11,349	$221K	0.0%	N/A	0.022%
2/12/2026	MetLife Investment Management LLC	28,348	$553K	0.0%	-4.1%	0.054%
2/12/2026	Banc Funds Co. LLC	905,190	$17.65M	3.5%	-10.1%	1.719%
2/12/2026	Renaissance Technologies LLC	86,325	$1.68M	0.0%	+75.7%	0.164%
2/12/2026	Dimensional Fund Advisors LP	2,260,874	$44.09M	0.0%	+2.5%	4.293%
2/12/2026	Sfam LLC	5,827	$114K	0.1%	N/A	0.011%
2/12/2026	New York State Common Retirement Fund	14,366	$280K	0.0%	+25.3%	0.027%
2/12/2026	Campbell & CO Investment Adviser LLC	10,996	$214K	0.0%	N/A	0.021%
2/12/2026	Bank of Montreal Can	139,252	$2.72M	0.0%	-22.4%	0.264%

OSBC Institutional Ownership - Frequently Asked Questions

During the previous two years, 207 institutional investors and hedge funds held shares of Old Second Bancorp. The most heavily invested institutionals were BlackRock Inc. ($100.25M), Vanguard Group Inc. ($63.93M), Dimensional Fund Advisors LP ($48.16M), Davis Asset Management L.P. ($41.98M), FJ Capital Management LLC ($35.68M), State Street Corp ($30.02M), and Geode Capital Management LLC ($26.63M).Learn more on Old Second Bancorp's institutional investors.

67.76% of Old Second Bancorp's stock is owned by institutional investors. Learn more on OSBC's institutional investor holdings.

Of the 180 institutional investors that purchased Old Second Bancorp's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($4.30M), Davis Asset Management L.P. ($2.33M), River Street Advisors LLC ($1.06M), The Manufacturers Life Insurance Company ($879.99K), Wellington Management Group LLP ($841.80K), Boston Partners ($817.31K), and Vanguard Group Inc. ($817.02K).

Institutional investors have bought a total of 15,491,211 shares in the last 24 months. This purchase volume represents approximately $329.39M in transactions.

Of the 62 institutional investors that sold Old Second Bancorp's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Jacobs Asset Management LLC ($328.22K), Wellington Management Group LLP ($313.44K), Goldman Sachs Group Inc. ($295.48K), Banc Funds Co. LLC ($252.19K), JPMorgan Chase & Co. ($139.73K), FJ Capital Management LLC ($90.27K), and Bridgeway Capital Management LLC ($77.33K).

Institutional investors have sold a total of 2,422,127 shares in the last 24 months. This volume of shares sold represents approximately $47.29M in transactions.

Related Companies

Institutional ownership data for NASDAQ:OSBC is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.

From Our Partners

Unlock superior investment research and tools.

Get MarketBeat All Access

In-depth profiles and analysis for 20,000 public companies.
Real-time analyst ratings, insider transactions, earnings data, and more.
Our daily ratings and market update email newsletter.

Sign In
Create Account

Your Email Address:

Your Password:

Forgot your password?

Your Email Address:

Choose a Password:

By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Old Second Bancorp (OSBC) Institutional Ownership

OSBC Institutional Buying and Selling by Quarter

Old Second Bancorp Major Shareholders & Ownership History

OSBC Institutional Ownership - Frequently Asked Questions

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools

About MarketBeat

MarketBeat Products

Popular Tools

Financial Calendars

Terms & Info

Old Second Bancorp (OSBC) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Old Second Bancorp (NASDAQ:OSBC)

OSBC Institutional Buying and Selling by Quarter

Old Second Bancorp Major Shareholders & Ownership History

OSBC Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of OSBC shares?

What percentage of Old Second Bancorp's stock is owned by institutional investors?

Which institutional investors have been buying Old Second Bancorp's stock?

How much institutional buying is happening at Old Second Bancorp?

Which of Old Second Bancorp's major shareholders have been selling company stock?

How much institutional selling is happening at Old Second Bancorp?

MarketBeat All Access Features

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools