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Old Second Bancorp
OSBC

185 hedge funds and large institutions have $725M invested in Old Second Bancorp in 2025 Q4 according to their latest regulatory filings, with 22 funds opening new positions, 78 increasing their positions, 59 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

32% more repeat investments, than reductions

Existing positions increased: 78 | Existing positions reduced: 59

16% more capital invested

Capital invested by funds: $624M → $725M (+$100M)

1.95% more ownership

Funds ownership: 68.61% → 70.56% (+1.9%)

6% less funds holding

Funds holding: 197 → 185 (-12)

20% less funds holding in top 10

Funds holding in top 10: 5 → 4 (-1)

27% less first-time investments, than exits

New positions opened: 22 | Existing positions closed: 30

Holders
185
Holders Change
-12
Holders Change %
-6.09%
% of All Funds
2.25%
Holding in Top 10
4
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-20%
% of All Funds
0.05%
New
22
Increased
78
Reduced
59
Closed
30
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Boston Partners
Boston Partners
Massachusetts
+$15.3M
2
Wellington Management Group
Wellington Management Group
Massachusetts
+$15.2M
3
BlackRock
BlackRock
New York
+$6.32M
4
Millennium Management
Millennium Management
New York
+$5.86M
5
DAM
Davis Asset Management
California
+$4.59M

Top Sellers

1
Goldman Sachs
Goldman Sachs
New York
-$5.52M
2
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$3.76M
3
JAM
Jacobs Asset Management
New York
-$3.68M
4
EF
Empowered Funds
Pennsylvania
-$3.43M
5
LSV Asset Management
LSV Asset Management
Illinois
-$3.34M
Name Holding Trade Value Shares
Change 		Change in
Stake
PAM
101
Panagora Asset Management
Massachusetts
$408K -$1.42K -76 -0.4%
First Trust Advisors
102
First Trust Advisors
Illinois
$408K -$154K -8,255 -28%
Envestnet Asset Management
103
Envestnet Asset Management
Illinois
$407K -$221K -11,817 -36%
NAS
104
Nicolet Advisory Services
Wisconsin
$399K – – –
ST
105
Sentinel Trust
Texas
$368K – – –
4A
106
4Wealth Advisors
Illinois
$364K -$279K -14,908 -44%
CAPTRUST Financial Advisors
107
CAPTRUST Financial Advisors
North Carolina
$360K +$345K +18,444 New
HAG
108
HighPoint Advisor Group
Illinois
$350K +$132K +7,082 +65%
IIM
109
INTECH Investment Management
Florida
$349K -$40.5K -2,168 -11%
CWA
110
Centennial Wealth Advisory
Michigan
$340K +$1.08K +58 +0.3%
Public Employees Retirement Association of Colorado
111
Public Employees Retirement Association of Colorado
Colorado
$337K – – –
State of Wisconsin Investment Board
112
State of Wisconsin Investment Board
Wisconsin
$315K +$302K +16,141 New
Cetera Investment Advisers
113
Cetera Investment Advisers
Illinois
$312K +$3.48K +186 +1%
Janus Henderson Group
114
Janus Henderson Group
United Kingdom
$305K – – –
KAS
115
Kestra Advisory Services
Texas
$290K +$1.06K +57 +0.4%
Universal-Beteiligungs- und Servicegesellschaft
116
Universal-Beteiligungs- und Servicegesellschaft
Germany
$288K -$33.3K -1,782 -11%
Federated Hermes
117
Federated Hermes
Pennsylvania
$287K -$4.35K -233 -2%
MFS
118
Mirabella Financial Services
United Kingdom
$284K +$272K +14,583 New
Mercer Global Advisors
119
Mercer Global Advisors
Colorado
$282K +$28.4K +1,520 +12%
New York State Common Retirement Fund
120
New York State Common Retirement Fund
New York
$280K +$54.2K +2,900 +25%
PFSRSONJ
121
Police & Firemen's Retirement System of New Jersey
New Jersey
$278K +$41.9K +2,244 +19%
ASRS
122
Arizona State Retirement System
Arizona
$272K +$29.3K +1,569 +13%
PCM
123
Princeton Capital Management
New Jersey
$269K – – –
BHCM
124
Brevan Howard Capital Management
Jersey
$248K -$82.6K -4,422 -26%
HWM
125
Hohimer Wealth Management
Washington
$244K +$318 +17 +0.1%
3 4
5
6 7

OSBC Hedge Fund Activity: Q4 2025 in Review

185 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Old Second Bancorp (OSBC) for Q4 2025, worth a combined $725M — up 16% from $624M a quarter earlier.

Sellers outnumbered buyers: 30 funds closed out of OSBC and 22 opened new positions — a net loss of 8 holders — while 59 trimmed existing stakes and 78 added.

The largest buyer was Boston Partners, opening a new position worth an estimated $15.3M. The largest seller was Goldman Sachs, cutting an estimated $5.52M.

  • 185 institutional investors held Old Second Bancorp (OSBC) as of Q4 2025, down from 197 in Q3 2025.
  • Funds reported $725M of Old Second Bancorp stock for Q4 2025, up 16% quarter-over-quarter.
  • 22 funds opened new Old Second Bancorp positions in Q4 2025 and 30 closed out, a net change of -8 holders.
  • The largest Old Second Bancorp buyer in Q4 2025 was Boston Partners, an estimated $15.3M added.
  • The largest Old Second Bancorp seller in Q4 2025 was Goldman Sachs, an estimated $5.52M sold.

Based on aggregated 13F filings for Q4 2025.