Old Second Bancorp, Inc.
DE ˙ DB ˙ US6802771005
18,10 € ↑0,30 (1,69%)
2026-06-03
DEL PRIS
SecurityDE:OSB / Old Second Bancorp, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership81,612 shares
Latest Disclosed Value $ 1,645,297
Invesco Ltd. reports 1.32% increase in ownership of OSB / Old Second Bancorp, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 81,612 shares of Old Second Bancorp, Inc. (DE:OSB) valued at $1,395,565 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 80,545 shares of Old Second Bancorp, Inc.. This represents a change in shares of 1.32% during the quarter. The current value of the position is $1,477,177 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)
2026-05-12 2026-03-31 13F OLD SECOND BANCORP INC DEL COM 680277100 81,612 1,067 1.32 1,645 4.78 0.0000
2026-02-19 2025-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 80,545 3,544 4.60 1,571 18.05 0.0002
2025-11-13 2025-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 77,001 6,662 9.47 1,331 6.66 0.0002
2025-08-13 2025-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 70,339 -4,690 -6.25 1,248 -0.08 0.0002
2025-05-12 2025-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 75,029 -2,868 -3.68 1,248 -9.89 0.0002
2025-02-13 2024-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 77,897 1,348 1.76 1,385 16.09 0.0003
2024-11-12 2024-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 76,549 -33,561 -30.48 1,193 -26.81 0.0002
2024-08-13 2024-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 110,110 2,833 2.64 1,631 9.84 0.0003
2024-05-14 2024-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 107,277 -5,463 -4.85 1,485 -14.71 0.0003
2024-02-13 2023-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 112,740 797 0.71 1,741 14.25 0.0004
2023-11-13 2023-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 111,943 10,122 9.94 1,524 14.60 0.0004
2023-08-11 2023-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 101,821 -9,557 -8.58 1,330 -15.08 0.0003
2023-05-12 2023-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 111,378 26,289 30.90 1,566 14.74 0.0004
2023-02-13 2022-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 85,089 2,194 2.65 1,365 26.06 0.0004
2022-11-14 2022-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 82,895 -1,435 -1.70 1,082 -4.08 0.0003
2022-08-15 2022-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 84,330 9,429 12.59 1,128 3.77 0.0003
2022-05-16 2022-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 74,901 -15,557 -17.20 1,087 -4.48 0.0003
2022-02-14 2021-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 90,458 -10,442 -10.35 1,138 -13.66 0.0003
2021-11-15 2021-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 100,900 3,873 3.99 1,318 9.56 0.0003
2021-08-17 2021-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 97,027 4,337 4.68 1,203 -1.72 0.0003
2021-05-17 2021-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 92,690 28,295 43.94 1,224 88.31 0.0003
2021-02-16 2020-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 64,395 53,119 471.08 650 673.81 0.0002
2020-11-16 2020-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 11,276 345 3.16 84 -1.18 0.0000
2020-08-14 2020-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 10,931 10,931 85 0.0000
2019-05-15 2019-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 0 -236,492 -100.00 0 -100.00
2019-02-14 2018-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 236,492 204,723 644.41 3,074 526.07 0.0012
2018-11-14 2018-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 31,769 -296,508 -90.32 491 -89.61 0.0002
2018-08-14 2018-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 328,277 68,102 26.18 4,727 30.72 0.0016
2018-05-15 2018-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 260,175 -3,640 -1.38 3,616 0.42 0.0014
2018-02-14 2017-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 263,815 50,439 23.64 3,601 25.47 0.0013
2017-11-14 2017-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 213,376 213,376 2,870 0.0011
2015-11-16 2015-09-30 13F OLD SECOND BANCORP COMMON 680277100 0 -615 -100.00 0 -100.00
2015-08-14 2015-06-30 13F OLD SECOND BANCORP COMMON 680277100 615 615 4 0.0000
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.