Old Second Bancorp
OSBC
183 hedge funds and large institutions have $579M invested in Old Second Bancorp in 2025 Q2 according to their latest regulatory filings, with 15 funds opening new positions, 74 increasing their positions, 65 reducing their positions, and 24 closing their positions.
14% more repeat investments, than reductions
Existing positions increased: 74 | Existing positions reduced: 65
6% more capital invested
Capital invested by funds: $546M → $579M (+$32.9M)
0.44% less ownership
Funds ownership: 72.88% → 72.44% (-0.44%)
5% less funds holding
Funds holding: 192 → 183 (-9)
25% less funds holding in top 10
Funds holding in top 10: 4 → 3 (-1)
38% less first-time investments, than exits
New positions opened: 15 | Existing positions closed: 24
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
KCM
Kennedy Capital Management
St Louis,
Missouri
|
+$7.85M |
| 2 |
DAM
Davis Asset Management
Sausalito,
California
|
+$4.64M |
| 3 |
Victory Capital Management
San Antonio,
Texas
|
+$1.59M |
| 4 |
American Century Companies
Kansas City,
Missouri
|
+$1.43M |
| 5 |
JAM
Jacobs Asset Management
New York
|
+$964K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RSA
River Street Advisors
Aurora,
Illinois
|
-$4.87M |
| 2 |
Millennium Management
New York
|
-$3.67M |
| 3 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$2.68M |
| 4 |
BFC
Banc Funds Company
Chicago,
Illinois
|
-$2.07M |
| 5 |
Adage Capital Partners
Boston,
Massachusetts
|
-$1.66M |
OSBC Hedge Fund Activity: Q2 2025 in Review
183 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Old Second Bancorp (OSBC) for Q2 2025, worth a combined $579M — up 6% from $546M a quarter earlier.
Sellers outnumbered buyers: 24 funds closed out of OSBC and 15 opened new positions — a net loss of 9 holders — while 65 trimmed existing stakes and 74 added.
The largest buyer was Kennedy Capital Management, adding an estimated $7.85M. The largest seller was River Street Advisors, exiting entirely with an estimated $4.87M sold.
- 183 institutional investors held Old Second Bancorp (OSBC) as of Q2 2025, down from 192 in Q1 2025.
- Funds reported $579M of Old Second Bancorp stock for Q2 2025, up 6% quarter-over-quarter.
- 15 funds opened new Old Second Bancorp positions in Q2 2025 and 24 closed out, a net change of -9 holders.
- The largest Old Second Bancorp buyer in Q2 2025 was Kennedy Capital Management, an estimated $7.85M added.
- The largest Old Second Bancorp seller in Q2 2025 was River Street Advisors, an estimated $4.87M sold.
Based on aggregated 13F filings for Q2 2025.