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Old Second Bancorp
OSBC
OSBC
188 hedge funds and large institutions have $761M invested in Old Second Bancorp in 2026 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 59 increasing their positions, 65 reducing their positions, and 17 closing their positions.
New
Increased
Maintained
Reduced
Closed
47% more first-time investments, than exits
New positions opened: 25 | Existing positions closed: 17
5% more capital invested
Capital invested by funds: $725M → $761M (+$36.5M)
2% more funds holding
Funds holding: 185 → 188 (+3)
1.15% more ownership
Funds ownership: 70.56% → 71.71% (+1.1%)
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
9% less repeat investments, than reductions
Existing positions increased: 59 | Existing positions reduced: 65
Holders
188
Holders Change
+3
Holders Change %
+1.62%
% of All Funds
2.31%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
25
Increased
59
Reduced
65
Closed
17
Calls
$4K
Puts
–
Net Calls
+$4K
Net Calls Change
+$4K
Top Buyers
| 1 |
Boston Partners
Boston,
Massachusetts
|
+$12.6M |
| 2 |
Goldman Sachs
New York
|
+$8.59M |
| 3 |
RSA
River Street Advisors
Aurora,
Illinois
|
+$7.64M |
| 4 |
EF
Empowered Funds
Havertown,
Pennsylvania
|
+$4.69M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$2.57M |
Top Sellers
| 1 |
FCM
FJ Capital Management
Mclean,
Virginia
|
-$6.51M |
| 2 |
Millennium Management
New York
|
-$5.66M |
| 3 |
Adage Capital Partners
Boston,
Massachusetts
|
-$4.74M |
| 4 |
JP Morgan Chase
New York
|
-$3.17M |
| 5 |
JAM
Jacobs Asset Management
New York
|
-$2.64M |
