WHITE MTNS INS GROUP LTD

Ticker: WTM CUSIP: G9618E107 Class: COM

Twin Tree Management, LP's Holding History (CIK: 0001535588)

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

Q1 2021

Shares 16 Value ($000) $18 Avg Close $1118.45 Range $994.91 - $1267.52

Q3 2020

Shares 78 Value ($000) $61 Avg Close $864.63 Range $752.10 - $961.96

Q1 2020

Shares 8 Value ($000) $7 Avg Close $1035.04 Range $629.21 - $1168.21

Q3 2019

Shares 33 Value ($000) $36 Avg Close $1066.63 Range $1025.25 - $1104.14

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	16	$18	$1118.45	$994.91 - $1267.52
Q3 2020	78	$61	$864.63	$752.10 - $961.96
Q1 2020	8	$7	$1035.04	$629.21 - $1168.21
Q3 2019	33	$36	$1066.63	$1025.25 - $1104.14