OLD SECOND BANCORP INC ILL (OSBC): Institutional Ownership
Hedge funds and institutional managers reporting a position in OSBC · Financials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
15
13F filers
Aggregate Value
$16.2M
Across holders
Last Price
$23.38
2026-06-26
Sector
Financials
GICS
Holder activity9 new3 added1 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 243K | $4.7M | 29.3% | 0.0% | New | — | Q4 2025 |
| Fisher Asset Management, LLC CIK 0000850529 | Institutional Manager | 97K | $2.0M | 12.1% | 0.0% | Unchanged | +$0 | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 90K | $1.8M | 11.2% | 0.0% | Added | +$79K | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 67K | $1.4M | 8.4% | 0.0% | Added | +$701K | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 64K | $1.3M | 7.7% | 0.0% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 60K | $1.2M | 7.5% | 0.0% | Reduced | $-146K | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 48K | $822K | 5.1% | 0.0% | New | — | Q3 2025 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 33K | $660K | 4.1% | 0.0% | Unchanged | +$0 | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 24K | $475K | 2.9% | 0.0% | New | — | Q4 2025 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 24K | $434K | 2.7% | 0.0% | New | — | Q2 2025 |
| Man Group plc CIK 0001637460 | Hedge Fund | 24K | $426K | 2.6% | 0.0% | New | — | Q2 2025 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 22K | $376K | 2.3% | 0.0% | New | — | Q3 2025 |
| Ancora Advisors, LLC CIK 0001446114 | Hedge Fund | 28K | $376K | 2.3% | 0.0% | New | — | Q1 2022 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 13K | $248K | 1.5% | 0.0% | New | — | Q4 2025 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 907 | $18K | 0.1% | 0.0% | Added | +$18K | Q1 2026 |
New
Hedge Fund
$4.7M· 29.3% of total· 0.0% port· 243K sh· — QoQ· Q4 2025
Unchanged
Institutional Manager
$2.0M· 12.1% of total· 0.0% port· 97K sh· +$0 QoQ· Q1 2026
Added
Hedge Fund
$1.8M· 11.2% of total· 0.0% port· 90K sh· +$79K QoQ· Q1 2026
Added
Hedge Fund
$1.4M· 8.4% of total· 0.0% port· 67K sh· +$701K QoQ· Q1 2026
New
Hedge Fund
$1.3M· 7.7% of total· 0.0% port· 64K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$1.2M· 7.5% of total· 0.0% port· 60K sh· $-146K QoQ· Q1 2026
New
Hedge Fund
$822K· 5.1% of total· 0.0% port· 48K sh· — QoQ· Q3 2025
Unchanged
Institutional Manager
$660K· 4.1% of total· 0.0% port· 33K sh· +$0 QoQ· Q1 2026
New
Hedge Fund
$475K· 2.9% of total· 0.0% port· 24K sh· — QoQ· Q4 2025
New
Hedge Fund
$434K· 2.7% of total· 0.0% port· 24K sh· — QoQ· Q2 2025
New
Hedge Fund
$426K· 2.6% of total· 0.0% port· 24K sh· — QoQ· Q2 2025
New
Hedge Fund
$376K· 2.3% of total· 0.0% port· 22K sh· — QoQ· Q3 2025
New
Hedge Fund
$376K· 2.3% of total· 0.0% port· 28K sh· — QoQ· Q1 2022
New
Hedge Fund
$248K· 1.5% of total· 0.0% port· 13K sh· — QoQ· Q4 2025
Added
Hedge Fund
$18K· 0.1% of total· 0.0% port· 907 sh· +$18K QoQ· Q1 2026