White Mountains Insurance Group Ltd

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM WTM

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/17/2026

Shares

2,457

Value ($000)

5,106

Weight

0.0%

2013 Q4 - 2025 Q4 (27 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	5,106	0.0%	2,457	12/31/2025
2025 Q3	11/14/2025	4,067	0.0%	2,433	9/30/2025
2025 Q2	8/14/2025	4,259	0.0%	2,372	6/30/2025
2025 Q1	5/15/2025	4,568	0.0%	2,372	3/31/2025
2024 Q4	3/18/2025	4,664	0.0%	2,398	12/31/2024
2024 Q3	4/4/2025	4,110	0.0%	2,423	9/30/2024
2024 Q2	4/8/2025	4,525	0.0%	2,490	6/30/2024
2024 Q1	5/16/2024	4,583	0.0%	2,554	3/31/2024
2023 Q4	2/13/2024	4,054	0.0%	2,694	12/31/2023
2023 Q3	11/14/2023	4,216	0.0%	2,819	9/30/2023
2023 Q2	8/21/2023	4,292	0.0%	3,090	6/30/2023
2023 Q1	5/9/2023	4,407	0.0%	3,199	3/31/2023
2022 Q4	2/14/2023	4,582	0.0%	3,240	12/31/2022
2022 Q3	11/21/2022	4,343	0.0%	3,333	9/30/2022
2022 Q2	8/15/2022	4,759	0.0%	3,819	6/30/2022
2022 Q1	5/16/2022	4,347	0.0%	3,826	3/31/2022
2021 Q4	2/15/2022	4,279	0.0%	4,220	12/31/2021
2021 Q3	11/15/2021	5,503	0.0%	5,145	9/30/2021
2021 Q2	8/16/2021	5,899	0.0%	5,138	6/30/2021
2021 Q1	5/18/2021	5,853	0.0%	5,250	3/31/2021
2020 Q4	2/16/2021	5,261	0.0%	5,258	12/31/2020
2020 Q3	11/17/2020	4,032	0.0%	5,176	9/30/2020
2020 Q2	8/17/2020	4,506	0.0%	5,075	6/30/2020
2020 Q1	5/13/2020	4,682	0.0%	5,145	3/31/2020
2019 Q4	2/14/2020	5,550	0.0%	4,975	12/31/2019
2014 Q1	5/8/2014	6,743	0.0%	11,241	3/31/2014
2013 Q4	2/10/2014	6,719	0.0%	11,141	12/31/2013