Old Second Bancorp Inc

BLAIR WILLIAM & CO/IL OSBC

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

154,219

Value ($000)

3,007

Weight

0.0%

2019 Q4 - 2025 Q4 (25 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/17/2026	3,007	0.0%	154,219	12/31/2025
2025 Q3	11/12/2025	2,669	0.0%	154,436	9/30/2025
2025 Q2	7/24/2025	320	0.0%	18,020	6/30/2025
2025 Q1	5/9/2025	300	0.0%	17,999	3/31/2025
2024 Q4	2/12/2025	320	0.0%	17,982	12/31/2024
2024 Q3	11/12/2024	290	0.0%	18,626	9/30/2024
2024 Q2	8/12/2024	276	0.0%	18,610	6/30/2024
2024 Q1	5/9/2024	153	0.0%	11,085	3/31/2024
2023 Q4	2/12/2024	171	0.0%	11,082	12/31/2023
2023 Q3	11/9/2023	151	0.0%	11,080	9/30/2023
2023 Q2	8/11/2023	145	0.0%	11,078	6/30/2023
2023 Q1	5/12/2023	156	0.0%	11,075	3/31/2023
2022 Q4	2/10/2023	178	0.0%	11,073	12/31/2022
2022 Q3	11/9/2022	144	0.0%	11,071	9/30/2022
2022 Q2	8/10/2022	148	0.0%	11,068	6/30/2022
2022 Q1	5/13/2022	161	0.0%	11,066	3/31/2022
2021 Q4	2/14/2022	139	0.0%	11,064	12/31/2021
2021 Q3	11/12/2021	144	0.0%	11,061	9/30/2021
2021 Q2	8/12/2021	137	0.0%	11,058	6/30/2021
2021 Q1	5/13/2021	146	0.0%	11,056	3/31/2021
2020 Q4	2/9/2021	369	0.0%	36,555	12/31/2020
2020 Q3	11/6/2020	485	0.0%	64,749	9/30/2020
2020 Q2	8/12/2020	420	0.0%	54,010	6/30/2020
2020 Q1	5/11/2020	798	0.0%	115,414	3/31/2020
2019 Q4	2/13/2020	1,737	0.0%	128,959	12/31/2019