WHITE MTNS INS GROUP LTD

Ticker: WTM CUSIP: G9618E107 Class: COM

BlackRock, Inc.'s Holding History (CIK: 0002012383)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 112,289 Value ($000) $233,341 Avg Close $1955.46 Range $1648.00 - $2143.25

Q3 2025

Shares 112,579 Value ($000) $188,177 Avg Close $1784.36 Range $1659.17 - $1880.11

Q2 2025

Shares 113,158 Value ($000) $203,200 Avg Close $1778.53 Range $1678.87 - $1937.23

Q1 2025

Shares 116,799 Value ($000) $224,932 Avg Close $1882.39 Range $1803.96 - $1993.86

Q4 2024

Shares 118,484 Value ($000) $230,458 Avg Close $1889.39 Range $1708.50 - $2023.00

Q3 2024

Shares 115,123 Value ($000) $195,271 Avg Close $1743.65 Range $1666.22 - $1847.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	112,289	$233,341	$1955.46	$1648.00 - $2143.25
Q3 2025	112,579	$188,177	$1784.36	$1659.17 - $1880.11
Q2 2025	113,158	$203,200	$1778.53	$1678.87 - $1937.23
Q1 2025	116,799	$224,932	$1882.39	$1803.96 - $1993.86
Q4 2024	118,484	$230,458	$1889.39	$1708.50 - $2023.00
Q3 2024	115,123	$195,271	$1743.65	$1666.22 - $1847.78