Old Second Bancorp, Inc.
US ˙ NasdaqGS ˙ US6802771005

SecurityOSBC / Old Second Bancorp, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Qube Research & Technologies Ltd closes position in OSBC / Old Second Bancorp, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 0 shares of Old Second Bancorp, Inc. (US:OSBC) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 64,157 shares of Old Second Bancorp, Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 0 -100.00 0
2026-02-17 2025-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 64,157 -201,157 -75.82 1,251 -72.72 0.0013
2025-11-14 2025-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 265,314 -30,786 -10.40 4,586 -12.70 0.0047
2025-08-14 2025-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 296,100 -6,759 -2.23 5,253 4.23 0.0053
2025-05-15 2025-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 302,859 127,175 72.39 5,040 61.35 0.0058
2025-02-14 2024-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 175,684 497 0.28 3,124 14.35 0.0041
2024-11-14 2024-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 175,187 131,633 302.23 2,731 323.41 0.0040
2024-08-14 2024-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 43,554 8,482 24.18 645 32.99 0.0010
2024-05-14 2024-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 35,072 -9,222 -20.82 485 -28.99 0.0008
2024-02-13 2023-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 44,294 44,294 684 0.0013
2023-08-14 2023-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 0 -26,795 -100.00 0 -100.00
2023-05-15 2023-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 26,795 26,795 377 0.0016
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.