White Mountains Insurance Group Ltd

JANUS HENDERSON GROUP PLC WTM

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

1,123

Value ($000)

2,336

Weight

0.0%

2019 Q4 - 2025 Q4 (21 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	2,336	0.0%	1,123	12/31/2025
2025 Q3	11/14/2025	1,878	0.0%	1,123	9/30/2025
2025 Q2	8/14/2025	2,011	0.0%	1,123	6/30/2025
2025 Q1	5/15/2025	2,141	0.0%	1,123	3/31/2025
2024 Q4	2/14/2025	4,702	0.0%	2,416	12/31/2024
2024 Q3	11/14/2024	2,071	0.0%	1,223	9/30/2024
2024 Q2	8/14/2024	2,233	0.0%	1,223	6/30/2024
2024 Q1	5/15/2024	2,232	0.0%	1,235	3/31/2024
2023 Q4	2/14/2024	1,869	0.0%	1,235	12/31/2023
2023 Q3	11/14/2023	1,858	0.0%	1,238	9/30/2023
2023 Q2	8/14/2023	1,721	0.0%	1,238	6/30/2023
2023 Q1	5/15/2023	1,704	0.0%	1,239	3/31/2023
2022 Q4	2/14/2023	745	0.0%	528	12/31/2022
2022 Q3	11/14/2022	687	0.0%	527	9/30/2022
2022 Q2	8/15/2022	781	0.0%	626	6/30/2022
2022 Q1	5/16/2022	716	0.0%	628	3/31/2022
2021 Q4	2/14/2022	638	0.0%	628	12/31/2021
2021 Q3	11/16/2021	334	0.0%	312	9/30/2021
2020 Q2	8/14/2020	551	0.0%	620	6/30/2020
2020 Q1	5/14/2020	1,022	0.0%	1,123	3/31/2020
2019 Q4	2/18/2020	2,835	0.0%	2,541	12/31/2019