CASTLE BIOSCIENCES INC

Ticker: CSTL CUSIP: 14843C105 Class: Common Stock

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q2 2020

Shares 149,792 Value ($000) $5,646 Avg Close $34.17 Range $25.07 - $44.53

Q4 2019

Shares 16,018 Value ($000) $551 Avg Close $24.45 Range $15.26 - $39.77

Q3 2019

Shares 182,272 Value ($000) $3,297 Avg Close $22.17 Range $17.10 - $28.50

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	149,792	$5,646	$34.17	$25.07 - $44.53
Q4 2019	16,018	$551	$24.45	$15.26 - $39.77
Q3 2019	182,272	$3,297	$22.17	$17.10 - $28.50