Old Second Bancorp, Inc.
DE ˙ DB ˙ US6802771005
18,20 € ↑0,60 (3,41%)
2026-06-05
DEL PRIS
SecurityDE:OSB / Old Second Bancorp, Inc.
InstitutionFJ Capital Management LLC
Latest Disclosed Ownership1,870,988 shares
Ownership 4.17%
FJ Capital Management LLC ownership in OSB / Old Second Bancorp, Inc.

2024-11-13 - FJ Capital Management LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,870,988 shares of Old Second Bancorp, Inc. (DE:OSB). This represents 4.17 percent ownership of the company. In their previous filing dated 2024-02-08 , FJ Capital Management LLC had reported owning 2,647,725 shares, indicating a decrease of -29.34 percent.

FJ Capital Management LLC has a history of taking positions in derivatives of the underlying security (OSB) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2024-11-13 2024-11-13 13G/A 2,647,725 1,870,988 -29.34 4.17 -29.56
2024-02-08 2024-02-08 13G/A 2,321,034 2,647,725 14.08 5.92 13.63
2023-02-08 2023-02-08 13G/A 2,624,717 2,321,034 -11.57 5.21 -43.00
2022-02-11 2022-02-11 13G/A 1,551,212 2,624,717 69.20 9.14 73.11
2021-02-10 2021-02-10 13G/A 1,483,346 1,551,212 4.58 5.28 5.39
2020-09-04 2020-09-04 13G 1,483,346 5.01

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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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Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:OSB / Old Second Bancorp, Inc. Historical Put/Call Ratio
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 COM 680277100 1,505,102 -324,563 -17.74 30,343 -14.96 3.4165
2026-02-13 2025-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 1,829,665 -90,269 -4.70 35,678 7.51 3.9390
2025-11-14 2025-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,919,934 82,601 4.50 33,186 1.82 3.5433
2025-08-14 2025-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,837,333 26,613 1.47 32,594 8.18 3.4565
2025-05-15 2025-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 1,810,720 15,108 0.84 30,130 -5.62 3.1185
2025-02-14 2024-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 1,795,612 -75,376 -4.03 31,926 9.45 3.7047
2024-11-14 2024-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,870,988 129,807 7.46 29,169 13.12 3.0566
2024-08-14 2024-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,741,181 -548,294 -23.95 25,787 -18.62 2.6961
2024-05-14 2024-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 2,289,475 -358,250 -13.53 31,686 -22.49 3.2234
2024-02-14 2023-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 2,647,725 0 0.00 40,881 13.45 4.1031
2023-11-14 2023-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 2,647,725 58,086 2.24 36,036 6.55 4.0782
2023-08-11 2023-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 2,589,639 50,000 1.97 33,821 -5.28 4.3129
2023-05-12 2023-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 2,539,639 218,605 9.42 35,707 -4.09 4.4213
2023-02-09 2022-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 2,321,034 -107,966 -4.44 37,229 17.45 4.4085
2022-11-09 2022-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 2,429,000 108,000 4.65 31,697 2.07 3.7906
2022-08-11 2022-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 2,321,000 -303,717 -11.57 31,055 -18.46 2.9823
2022-05-12 2022-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 2,624,717 -283 -0.01 38,085 15.25 3.2408
2022-02-11 2021-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 2,625,000 461,000 21.30 33,045 16.92 2.7509
2021-11-12 2021-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 2,164,000 613,000 39.52 28,264 46.94 2.4226
2021-08-06 2021-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,551,000 -200 -0.01 19,235 -6.13 1.6108
2021-05-18 2021-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 1,551,200 200 0.01 20,492 30.80 1.7070
2021-02-10 2020-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 1,551,000 0 0.00 15,667 34.76 1.7448
2020-11-13 2020-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,551,000 294,000 23.39 11,626 18.88 1.8293
2020-08-14 2020-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 1,257,000 135,000 12.03 9,780 26.10 1.5169
2020-05-14 2020-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 1,122,000 124,000 12.42 7,756 -42.28 1.3703
2020-02-14 2019-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 998,000 0 0.00 13,438 10.23 1.4376
2019-11-14 2019-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 998,000 116,000 13.15 12,191 8.21 1.2648
2019-08-14 2019-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 882,000 192,751 27.97 11,266 29.82 1.0775
2019-05-14 2019-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 689,249 -183,751 -21.05 8,678 -23.58 0.8961
2019-02-14 2018-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 873,000 284,900 48.44 11,355 24.97 1.3268
2018-11-14 2018-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 588,100 66,100 12.66 9,086 20.87 1.0097
2018-08-14 2018-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 522,000 0 0.00 7,517 9.34 0.8344
2018-05-14 2018-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 522,000 143,700 37.99 6,875 33.13 0.8465
2018-02-13 2017-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 378,300 -291,700 -43.54 5,164 -42.67 0.6468
2017-11-14 2017-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 670,000 -40,800 -5.74 9,008 9.72 1.0927
2017-08-14 2017-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 710,800 -22,800 -3.11 8,210 -0.52 1.0368
2017-05-15 2017-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 733,600 12,300 1.71 8,253 3.54 1.1358
2017-02-14 2016-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 721,300 546,300 312.17 7,971 448.21 1.1836
2016-11-14 2016-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 175,000 0 0.00 1,454 21.67 0.2785
2016-08-12 2016-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 175,000 25,000 16.67 1,195 11.06 0.2369
2016-05-16 2016-03-31 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 1,076 -8.50 0.2113
2016-05-13 2016-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 1,076
2016-02-12 2015-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 1,176 25.78 0.2142
2015-11-10 2015-09-30 13F/A-1 OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 935 -5.56 0.2045
2015-11-06 2015-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 935
2015-08-10 2015-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 990 15.38 0.2363
2015-05-08 2015-03-31 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 858 6.45 0.2410
2015-02-11 2014-12-31 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 806 11.63 0.2529
2014-11-14 2014-09-30 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 0 0.00 722 -3.22 0.2673
2014-08-14 2014-06-30 13F OLD SECOND BANCORP INC ILL COM 680277100 150,000 150,000 746 0.2854
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-08-06 2021-06-30 13F OLD SECOND BANCORP INC ILL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-14 2021-03-31 13F OLD SECOND BANCORP INC ILL COM Call 1,551,200 20,492 n/a n/a n/a
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.