How many shares of WTM does BROWN ADVISORY INC own?

As of 2026-Q2, BROWN ADVISORY INC holds 17,722 shares of WTM (WHITE MTNS INS GROUP LTD).

What is BROWN ADVISORY INC's WTM position worth?

As of 2026-Q2, BROWN ADVISORY INC's WTM position is worth $36.7M.

In 2026-Q2, BROWN ADVISORY INC decreased their WTM position (-0.7% change in shares).

Based on available 13F filings, BROWN ADVISORY INC first reported a position in WTM in 2018-Q4. They have held the position across 31 quarters.

Position history for BROWN ADVISORY INC's holdings in WHITE MTNS INS GROUP LTD

Current Value

$36.7M

Current Shares

17,722

Total Value Change

+$33.2M

Total Shares Change

+13,596

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	17,722	-0.7%	$36.7M	0.1%	$2,073.39	0
2026-Q1	Decreased	17,844	-5.9%	$39.2M	0.1%	$2,215.09	0
2025-Q4	Decreased	18,956	-6.8%	$39.4M	0.1%	$2,078.62	0
2025-Q3	Decreased	20,332	-2.5%	$34M	0.0%	$1,677.70	0
2025-Q2	Decreased	20,854	-5.5%	$37.4M	0.0%	$1,783.93	0
2025-Q1	Decreased	22,076	-1.5%	$42.5M	0.1%	$1,902.57	0
2024-Q4	Decreased	22,421	-3.1%	$43.6M	0.1%	$1,928.20	0
2024-Q3	Increased	23,149	+1.5%	$39.3M	0.0%	$1,700.10	29
2024-Q2	Decreased	22,815	-1.3%	$41.5M	0.1%	$1,816.48	0
2024-Q1	Increased	23,121	+40.7%	$41.5M	0.1%	$1,793.35	39
2023-Q4	Decreased	16,429	-1.7%	$24.7M	0.0%	$1,503.36	0
2023-Q3	Increased	16,709	+76.8%	$25M	0.0%	$1,494.05	43
2023-Q2	Decreased	9,449	-6.2%	$13.1M	0.0%	$1,378.49	0
2023-Q1	Increased	10,072	+218.0%	$13.9M	0.0%	$1,375.78	45
2022-Q4	Increased	3,167	+3.0%	$4.5M	0.0%	$1,411.75	28
2022-Q3	Unchanged	3,075	0.0%	$4M	0.0%	$1,286.57	0
2022-Q2	Decreased	3,075	-4.8%	$3.8M	0.0%	$1,226.94	0
2022-Q1	Decreased	3,229	-6.3%	$3.7M	0.0%	$1,100.31	0
2021-Q4	Decreased	3,446	-2.0%	$3.5M	0.0%	$1,009.53	0
2021-Q3	Decreased	3,517	-0.1%	$3.8M	0.0%	$1,083.92	0
2021-Q2	Increased	3,521	+0.1%	$4M	0.0%	$1,144.74	27
2021-Q1	Unchanged	3,517	0.0%	$3.9M	0.0%	$1,113.20	0
2020-Q4	Decreased	3,517	-5.0%	$3.5M	0.0%	$994.69	0
2020-Q3	Decreased	3,702	-2.7%	$2.9M	0.0%	$772.22	0
2020-Q2	Increased	3,804	+0.1%	$3.4M	0.0%	$877.81	26
2020-Q1	Decreased	3,800	-1.0%	$3.5M	0.0%	$904.50	0
2019-Q4	Decreased	3,840	-1.5%	$4.3M	0.0%	$1,113.03	0
2019-Q3	Increased	3,898	+1.0%	$4.2M	0.0%	$1,063.73	27
2019-Q2	Decreased	3,859	-5.8%	$3.9M	0.0%	$1,016.52	0
2019-Q1	Decreased	4,095	-0.8%	$3.8M	0.0%	$921.00	0
2018-Q4	New	4,126	-	$3.5M	0.0%	$849.07	37