Old Second Bancorp, Inc.

Historical 13F Holders

Symbol
OSBC
CUSIP
680277100
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 680277100 since 12/18/2024, largest first.

Filer % of Class Filed
Dimensional Fund Advisors LP 13G 5.1% 10/8/2026
Event 9/30/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
FJ Capital Management LLC 13G/A
4.2% 11/13/2024
Event 9/30/2024
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 10 479 k $11.8 M
2026 Q2 187 40.0 M $955 M
2026 Q1 189 37.8 M $761 M
2025 Q4 189 37.2 M $726 M
2025 Q3 200 36.9 M $638 M
2025 Q2 186 32.7 M $581 M
2025 Q1 196 32.8 M $546 M
2024 Q4 184 32.3 M $574 M
2024 Q3 180 32.9 M $513 M
2024 Q2 161 32.1 M $475 M
2024 Q1 160 31.6 M $438 M
2023 Q4 165 32.1 M $495 M
2023 Q3 149 30.1 M $409 M
2023 Q2 135 29.5 M $386 M
2023 Q1 156 29.5 M $415 M
2022 Q4 149 30.3 M $487 M
2022 Q3 135 29.5 M $385 M
2022 Q2 136 29.5 M $395 M
2022 Q1 138 28.9 M $419 M
2021 Q4 131 22.4 M $283 M
2021 Q3 114 20.4 M $266 M
2021 Q2 117 20.4 M $254 M
2021 Q1 102 20.5 M $271 M
2020 Q4 106 22.0 M $223 M
2020 Q3 109 21.2 M $159 M
2020 Q2 113 21.3 M $165 M
2020 Q1 121 21.3 M $147 M
2019 Q4 127 21.5 M $291 M
2019 Q3 118 21.0 M $257 M
2019 Q2 124 20.8 M $265 M
2019 Q1 128 21.1 M $265 M
2018 Q4 127 21.4 M $278 M
2018 Q3 126 21.1 M $327 M
2018 Q2 111 21.0 M $302 M
2018 Q1 109 20.7 M $288 M
2017 Q4 112 20.5 M $280 M
2017 Q3 97 20.3 M $273 M
2017 Q2 91 19.4 M $224 M
2017 Q1 81 19.4 M $218 M
2016 Q4 89 19.1 M $211 M
2016 Q3 80 19.5 M $162 M
2016 Q2 79 19.5 M $133 M
2016 Q1 80 19.7 M $142 M
2015 Q4 75 19.4 M $152 M
2015 Q3 67 18.2 M $113 M
2015 Q2 62 17.5 M $115 M
2015 Q1 51 17.6 M $101 M
2014 Q4 43 16.2 M $86.9 M
2014 Q3 44 15.6 M $75.0 M
2014 Q2 47 16.0 M $79.3 M
2014 Q1 31 3.38 M $15.6 M