White Mountains Insurance Group Ltd

O'SHAUGHNESSY ASSET MANAGEMENT, LLC WTM

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/11/2026

Shares

934

Value ($000)

1,941

Weight

0.0%

2019 Q4 - 2025 Q4 (23 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	2/11/2026	1,941	0.0%	934	12/31/2025
2025 Q3	11/13/2025	1,643	0.0%	983	9/30/2025
2025 Q1	5/13/2025	2,036	0.0%	1,057	3/31/2025
2024 Q4	2/12/2025	2,071	0.0%	1,065	12/31/2024
2024 Q3	11/12/2024	1,880	0.0%	1,017	9/30/2024
2024 Q2	8/14/2024	1,863	0.0%	1,025	6/30/2024
2024 Q1	5/13/2024	1,862	0.0%	1,038	3/31/2024
2023 Q4	2/9/2024	1,552	0.0%	1,031	12/31/2023
2023 Q3	11/13/2023	1,105	0.0%	739	9/30/2023
2023 Q2	8/11/2023	722	0.0%	520	6/30/2023
2023 Q1	5/12/2023	993	0.0%	721	3/31/2023
2022 Q4	2/10/2023	999	0.0%	706	12/31/2022
2022 Q3	11/14/2022	920	0.0%	706	9/30/2022
2022 Q2	8/11/2022	446	0.0%	358	6/30/2022
2022 Q1	5/13/2022	353	0.0%	311	3/31/2022
2021 Q4	2/11/2022	209	0.0%	206	12/31/2021
2021 Q3	11/10/2021	135	0.0%	126	9/30/2021
2021 Q2	8/9/2021	21	0.0%	18	6/30/2021
2021 Q1	5/14/2021	20	0.0%	18	3/31/2021
2020 Q4	2/11/2021	12	0.0%	12	12/31/2020
2020 Q3	11/12/2020	9	0.0%	12	9/30/2020
2020 Q2	8/13/2020	11	0.0%	12	6/30/2020
2019 Q4	2/12/2020	138	0.0%	124	12/31/2019