Old Second Bancorp, Inc.
DE ˙ DB ˙ US6802771005
18,10 € ↑0,30 (1,69%)
2026-06-03
AKTIENPREIS
SecurityDE:OSB / Old Second Bancorp, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership278,387 shares
Latest Disclosed Value $ 5,612,306
Morgan Stanley reports 3.38% decrease in ownership of OSB / Old Second Bancorp, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 278,387 shares of Old Second Bancorp, Inc. (DE:OSB) valued at $4,760,418 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 288,122 shares of Old Second Bancorp, Inc.. This represents a change in shares of -3.38% during the quarter. The current value of the position is $5,038,805 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.

Upgrade to unlock premium data and export to Excel .

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 278,387 -9,735 -3.38 5,612 -0.11 0.0003
2026-05-27 2025-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 288,122 -21,775 -7.03 5,618 4.89 0.0003
2026-02-13 2025-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 288,122 -21,775 5,618 0.0003
2026-05-27 2025-09-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 309,897 -35,112 -10.18 5,357 -12.48 0.0003
2025-11-14 2025-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 309,897 -35,112 5,357 0.0003
2025-08-15 2025-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 345,009 -17,593 -4.85 6,120 1.44 0.0004
2025-05-15 2025-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 362,602 -32,834 -8.30 6,034 -14.18 0.0004
2025-05-15 2024-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 395,436 30,683 8.41 7,031 23.64 0.0005
2025-02-14 2024-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 395,436 30,683 7,031 0.0005
2025-05-14 2024-09-30 13F/A-2 OLD SECOND BANCORP INC ILL COM 680277100 364,753 120,061 49.07 5,687 56.94 0.0004
2025-02-14 2024-09-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 364,753 120,061 5,687 0.0004
2024-11-14 2024-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 364,753 120,061 5,687 0.0000
2025-05-14 2024-06-30 13F/A-2 OLD SECOND BANCORP INC ILL COM 680277100 244,692 -21,150 -7.96 3,624 -1.52 0.0003
2024-10-17 2024-06-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 244,692 -21,150 3,624 0.0003
2024-08-14 2024-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 244,692 -21,150 3,624 0.0003
2024-10-17 2024-03-31 13F/A-2 OLD SECOND BANCORP INC ILL COM 680277100 265,842 -96,741 -26.68 3,679 -34.28 0.0003
2024-08-16 2024-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 265,842 -96,741 3,679 0.0000
2024-05-15 2024-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 265,842 -96,741 3,679 0.0003
2024-08-16 2023-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 362,583 163,381 82.02 5,598 106.49 0.0005
2024-02-13 2023-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 362,583 163,381 5,598 0.0005
2023-11-15 2023-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 199,202 -1,648 -0.82 2,711 3.35 0.0003
2023-08-14 2023-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 200,850 -114,912 -36.39 2,623 -40.91 0.0003
2023-05-15 2023-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 315,762 52,728 20.05 4,440 5.21 0.0005
2023-02-14 2022-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 263,034 41,514 18.74 4,219 45.99 0.0005
2022-11-14 2022-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 221,520 -339 -0.15 2,890 -2.63 0.0004
2022-10-27 2022-06-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 221,859 134,797 154.83 2,968 134.81 0.0004
2022-08-15 2022-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 221,859 134,797 2,968 0.0004
2022-10-27 2022-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 87,062 8,882 11.36 1,264 28.32 0.0002
2022-05-13 2022-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 87,062 8,882 1,264 0.0002
2022-02-14 2021-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 78,180 -616 -0.78 985 -4.18 0.0001
2021-11-15 2021-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 78,796 -23,922 -23.29 1,028 -19.31 0.0001
2021-08-23 2021-06-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 102,718 81,924 393.98 1,274 363.27 0.0002
2021-08-16 2021-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 102,718 81,924 1,274 0.0000
2021-05-17 2021-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 20,794 -7,112 -25.49 275 -2.48 0.0000
2021-02-16 2020-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 27,906 18,371 192.67 282 291.67 0.0000
2020-11-13 2020-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 9,535 -6,435 -40.29 72 -42.40 0.0000
2020-08-14 2020-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 15,970 4,209 35.79 125 54.32 0.0000
2020-05-26 2020-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 11,761 -59,901 -83.59 81 -91.61 0.0000
2020-05-15 2020-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 11,761 -59,901 81 6.2225
2020-02-14 2019-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 71,662 16,543 30.01 966 43.54 0.0002
2019-11-14 2019-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 55,119 44,718 429.94 673 406.02 0.0002
2019-08-14 2019-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 10,401 -16,945 -61.97 133 -61.45 0.0000
2019-05-15 2019-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 27,346 -47,548 -63.49 345 -64.58 0.0001
2019-02-14 2018-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 74,894 5,470 7.88 974 -9.14 0.0003
2019-04-23 2018-09-30 13F/A-2 OLD SECOND BANCORP INC ILL COM 680277100 69,424 -63,341 -47.71 1,072 -43.90 0.0003
2018-11-20 2018-09-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 69,424 0 1,072 0.0003
2018-11-14 2018-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 69,424 -63,341 1,072
2019-04-23 2018-06-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 132,765 22,528 20.44 1,911 24.74 0.0005
2018-08-14 2018-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 132,765 22,528 1,911
2019-04-23 2018-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 110,237 -4,602 -4.01 1,532 -2.23 0.0004
2018-05-14 2018-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 110,237 -4,602 1,532
2019-04-23 2017-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 114,839 20,979 22.35 1,567 24.17 0.0004
2018-02-14 2017-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 114,839 20,979 1,567
2017-11-14 2017-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 93,860 -25,714 -21.50 1,262 -8.62 0.0004
2017-08-11 2017-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 119,574 3,927 3.40 1,381 6.15 0.0004
2017-05-22 2017-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 115,647 -27,758 -19.36 1,301 -17.92 0.0004
2017-05-12 2017-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 115,647 1,301
2017-02-22 2016-12-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 143,405 81,990 133.50 1,585 210.18 0.0005
2017-02-13 2016-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 143,405 1,585
2016-11-10 2016-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 61,415 3,950 6.87 511 30.03 0.0002
2016-08-12 2016-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 57,465 -19,873 -25.70 393 -29.06 0.0001
2016-05-12 2016-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 77,338 -31,498 -28.94 554 -35.13 0.0002
2016-02-09 2015-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 108,836 -28,962 -21.02 854 -0.58 0.0003
2016-02-08 2015-09-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 137,798 65,381 90.28 859 79.71 0.0003
2015-11-09 2015-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 137,798 859
2015-08-12 2015-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 72,417 -18,727 -20.55 478 -8.25 0.0002
2015-05-14 2015-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 91,144 1,471 1.64 521 8.09 0.0002
2015-02-13 2014-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 89,673 -5,268 -5.55 482 5.47 0.0002
2014-12-16 2014-09-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 94,941 5,697 6.38 457 11.19 0.0002
2014-11-14 2014-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 94,941 457
2014-05-13 2014-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 89,244 -76 -0.09 411 -0.72 0.0002
2014-02-13 2013-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 89,320 3,423 3.99 414 -15.34 0.0002
2013-11-13 2013-09-30 13F OLD SECOND BANCORP INC DEL COM 680277100 85,897 -5,489 -6.01 489 -3.17 0.0002
2013-08-08 2013-06-30 13F OLD SECOND BANCORP INC DEL COM 680277100 91,386 91,386 505 0.0003
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.