OLD SECOND BANCORP INC DEL (OSBC) is held by 107 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q1 2026.

Are institutions buying or selling OSBC?

In Q1 2026, 51 institutions opened or increased positions in OLD SECOND BANCORP INC DEL while 55 reduced or exited — a net selling quarter.

What is the Smart Money Verdict on OSBC?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for OLD SECOND BANCORP INC DEL.

How many hedge funds hold OSBC?

107 institutional investors report holding OLD SECOND BANCORP INC DEL (OSBC) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into OSBC?

As of Q1 2026, tracked institutions in OLD SECOND BANCORP INC DEL show 51 buyers versus 55 sellers — net outflows.

OLD SECOND BANCORP INC DEL

OSBC·680277100·US·Common Stock·Financial Services - Banks - Regional-13D/G

107

Holders

Avg rating(27 Elite)

$556.2M

Total Value

48% (117)

Fund Consensus

51 buying - 55 selling

Smart Money Verdict

View all

Held by 107 funds

27 elite

Who's Trading

InsiderCSCOLLINS GARY SSell $108KMay 22, 2026

InsiderLJLyons Billy J Jr.Buy $501.6May 11, 2026

InsiderPDPilmer DonaldSell $519KMay 11, 2026

InsiderCSCOLLINS GARY SSell $106KMay 8, 2026

InsiderCSCOLLINS GARY SSell $212KMay 8, 2026

Activist

The Vanguard Group0.0%Mar 27, 2026

InsiderCSCOLLINS GARY SSell $429KMar 20, 2026

InsiderCPCampbell Darin PatrickSell $733KFeb 18, 2026

InsiderCPCampbell Darin PatrickSell $2KFeb 13, 2026

InsiderLJLadowicz JohnSell $61KJan 15, 2026

View all insider trades View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	4.1M(-0.7%)	$83.2M	0.0%	+30.07%	0
DIMENSIONAL FUND ADVISORS LP	Increased	2.4M(+5.7%)	$48.2M	0.0%	+56.79%	31
VAVANGUARD CAPITAL MANAGEMENT LLC	New	2.3M	$45.4M	0.0%	+15.03%	40
GOLDMAN SACHS GROUP INC	Increased	1.7M(+33.9%)	$34.1M	0.0%	+28.80%	37
STATE STREET CORP	Increased	1.6M(+3.9%)	$32.2M	0.0%	+43.75%	30
AMERICAN CENTURY COMPANIES INC	Increased	1.6M(+8.2%)	$32.1M	0.0%	+48.20%	31
Boston Partners	Increased	1.4M(+76.7%)	$29.3M	0.0%	+16.48%	44
GEODE CAPITAL MANAGEMENT, LLC	Decreased	1.3M(-6.1%)	$25.9M	0.0%	+67.27%	0
MANUFACTURERS LIFE INSURANCE COMPANY, THE	Decreased	878,670(-1.5%)	$17.7M	0.0%	+96.60%	0
WELLINGTON MANAGEMENT GROUP LLP	Decreased	857,785(-11.5%)	$17.3M	0.0%	+23.52%	0
NORTHERN TRUST CORP	Decreased	764,341(-13.3%)	$15.4M	0.0%	+52.31%	0
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	712,433	$14.4M	0.0%	+15.03%	39
JPMORGAN CHASE & CO	Decreased	700,953(-18.4%)	$13.9M	0.0%	+29.67%	0
ALLIANCEBERNSTEIN L.P.	Increased	690,845(+0.7%)	$13.5M	0.0%	+86.68%	28
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	430,910(-1.5%)	$8.7M	0.0%	+64.16%	0
Nuveen, LLC	Increased	419,642(+1.0%)	$8.5M	0.0%	+37.37%	28
AQR CAPITAL MANAGEMENT LLC	Decreased	391,960(-12.3%)	$7.9M	0.0%	+52.66%	0
Bank of New York Mellon Corp	Decreased	337,264(-2.0%)	$6.8M	0.0%	+72.25%	0
VFVANGUARD FIDUCIARY TRUST CO	New	335,483	$6.8M	0.0%	+15.03%	38
BANK OF AMERICA CORP /DE/	Decreased	331,330(-3.3%)	$6.7M	0.0%	+32.02%	0