Old Second Bancorp, Inc.
DE ˙ DB ˙ US6802771005
18,20 € ↑0,60 (3,41%)
2026-06-05
DEL PRIS
SecurityDE:OSB / Old Second Bancorp, Inc.
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership139,054 shares
Latest Disclosed Value $ 2,803,329
Victory Capital Management Inc reports 10.12% decrease in ownership of OSB / Old Second Bancorp, Inc.

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 139,054 shares of Old Second Bancorp, Inc. (DE:OSB) valued at $2,377,823 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 154,715 shares of Old Second Bancorp, Inc.. This represents a change in shares of -10.12% during the quarter. The current value of the position is $2,530,783 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 DEL COM 680277100 139,054 -15,661 -10.12 2,803 -7.06 0.0013
2026-02-13 2025-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 154,715 -7,595 -4.68 3,017 7.52 0.0017
2025-11-12 2025-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 162,310 40,402 33.14 2,806 29.74 0.0016
2025-08-13 2025-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 121,908 97,708 403.75 2,163 437.81 0.0014
2025-05-02 2025-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 24,200 -2,432 -9.13 403 -15.01 0.0004
2025-02-06 2024-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 26,632 6,049 29.39 474 47.81 0.0005
2024-11-05 2024-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 20,583 20,583 321 0.0003
2023-07-27 2023-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 0 -703 -100.00 0 -100.00
2023-05-02 2023-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 703 -183,592 -99.62 10 -99.70 0.0000
2023-04-25 2022-12-31 13F/A-3 OLD SECOND BANCORP INC ILL COM 680277100 184,295 -105,709 -36.45 2,956 -21.90 0.0034
2023-03-10 2022-12-31 13F/A-2 OLD SECOND BANCORP INC ILL COM 680277100 184,295 -105,709 2,956 0.0020
2023-02-10 2022-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 184,295 -105,709 2,956 0.0020
2023-02-09 2022-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 184,295 -105,709 2,956 0.0020
2022-11-02 2022-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 290,004 -191,275 -39.74 3,785 -41.23 0.0044
2022-08-01 2022-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 481,279 -28,600 -5.61 6,440 -12.95 0.0073
2022-05-04 2022-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 509,879 51,023 11.12 7,398 28.06 0.0074
2022-02-07 2021-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 458,856 26,826 6.21 5,777 2.39 0.0053
2021-11-02 2021-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 432,030 -314,288 -42.11 5,642 -39.03 0.0055
2021-08-03 2021-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 746,318 205,446 37.98 9,254 29.52 0.0089
2021-05-04 2021-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 540,872 536,361 11,890.07 7,145 22,948.39 0.0073
2020-05-12 2020-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 4,511 -3,219 -41.64 31 -70.19 0.0001
2020-05-04 2020-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 4,511 -3,219 31 33.9263
2020-02-06 2019-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 7,730 3,046 65.03 104 82.46 0.0001
2020-02-04 2019-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 4,610 -74 57 68.3254
2019-11-12 2019-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 4,684 4,684 57 0.0001
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.