Who Owns OSBC?
Old Second Bancorp, Inc. — Institutional Ownership & 13F Holdings
$20.34
+0.34 (+1.70%)
Market Cap
$1.0B
Shares Outstanding
52,690,809
Institutional Holders
191
Total Inst. Value
$481.7M
% of Float Held
78.4%
QoQ Holder Change
+68
Institutional data as of Q1 2025
New Positions
31
Closed Positions
11
Increased
55
Decreased
69
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | BlackRock, Inc. | $59.6M | 3,580,497 |
| 2 | VANGUARD GROUP INC | $45.1M | 2,711,390 |
| 3 | DIMENSIONAL FUND ADVISORS LP | $34.8M | 2,092,430 |
| 4 | FJ Capital Management LLC | $30.1M | 1,810,720 |
| 5 | GOLDMAN SACHS GROUP INC | $24.6M | 1,478,332 |
| 6 | STATE STREET CORP | $21.8M | 1,309,811 |
| 7 | BANC FUNDS CO LLC | $21.4M | 1,284,578 |
| 8 | AMERICAN CENTURY COMPANIES INC | $19.0M | 1,139,741 |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $18.8M | 1,126,806 |
| 10 | JPMORGAN CHASE & CO | $15.8M | 951,890 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| BlackRock, Inc. | +43K | $59.6M |
| VANGUARD GROUP INC | +74K | $45.1M |
| DIMENSIONAL FUND ADVISORS LP | +73K | $34.8M |
| FJ Capital Management LLC | +15K | $30.1M |
| GOLDMAN SACHS GROUP INC | +630K | $24.6M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| BANC FUNDS CO LLC | -332K | $21.4M |
| KENNEDY CAPITAL MANAGEMENT LLC | -239K | $8.6M |
| CITADEL ADVISORS LLC | -186K | $380K |
| Assenagon Asset Management S.A. | -185K | $3.0M |
| WELLINGTON MANAGEMENT GROUP LLP | -154K | $3.0M |
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Frequently Asked Questions
How many institutional investors hold OSBC?
As of Q1 2025, 191 institutional investors report holding OSBC (Old Second Bancorp, Inc.) in their 13F filings.
What percentage of Old Second Bancorp, Inc. is owned by institutions?
Institutional investors hold approximately 78.4% of Old Second Bancorp, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most OSBC?
The largest institutional holder of OSBC is BlackRock, Inc. with $59.6M in shares.
Are institutions buying or selling OSBC?
This quarter, 31 institutions opened new positions in OSBC and 11 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.